How to clip a background including nodes according to an arbitrary shape?












5















The following WE



documentclass[border=10pt]{standalone}

usepackage[dvipsnames]{xcolor}

usepackage{tikz}

usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}



tikzstyle{backA}=[rectangle,

fill=blue!30,

inner sep=0.2cm,

rounded corners=0mm]



tikzstyle{backB}=[rectangle,

fill=purple!15,

inner sep=0.2cm,

rounded corners=0mm]



tikzstyle{backC}=[rectangle,

fill=yellow!40,

inner sep=0.2cm,

rounded corners=0mm]



tikzset{%

  >={Latex[width=2mm,length=2mm]},

            base/.style = {rectangle, rounded corners, draw=black,

                           minimum width=1cm, minimum height=1cm,

                           text centered,inner sep=0.3cm},

  operation/.style = {base, fill=SkyBlue},

}



begin{document}    

begin{tikzpicture}[node distance=0.8cm,

    every node/.style={fill=white}, align=center]

    node (controller) [operation] {Microcontroller};

    node (regulator) [operation, below = of controller] {Regulator};

    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};

    node (sensor) [operation, above = of controller] {Sensor};

    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};

    node (driver1) [operation, right = of sensor] {Driver 1};

    node (driver2) [operation, left = of sensor] {Driver 2};

    node (power) [operation, left = of regulator, align=center] {Input \ Power};

    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};

    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};

    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};

    coordinate[left = of power] (d1) {};

    coordinate[above = of d1, yshift=5.5cm] (d2) {};



    draw[->]             (controller) -- (transceiver);

    draw[<->]             (controller) -- (sensor);

    draw[->]             (driver1) -- (motor1);

    draw[->]             (driver2) -- (motor2);

    draw[<->]             (sensor) -- (motor2);

    draw[<->]             (sensor) -- (motor1);

    draw[->]             (controller) -- (driver1);

    draw[->]             (controller) -- (driver2);

    draw[->]             (controller) -- (flash);

    draw[->]             (regulator) -- (controller);

    draw[->]             (power) -- (regulator);

    draw[<->]             (transceiver) -- (computer);

    draw[->]             (power) -- (d1) |- (motor2);

    draw[->]             (power) -- (d1) --  (d2) -| (motor1);



    begin{pgfonlayer}{background}

    node [backC,

    fit=(driver1) (driver2) (sensor) (motor1) (motor2),

    label=above:{}] {};



    node [backA,

    fit=(computer) (transceiver),

    label=above:{}] {};



    node [backB,

    fit=(regulator) (power),

    label=above:{}] {};

    end{pgfonlayer}

  end{tikzpicture}

end{document}


yields



enter image description here



Since the driver1 node should have been exclusively covered by the yellow background, I need to subtract the specific part of the violet background which interferes with the yellow one. In particular, an acceptable boundary for the violet background may roughly be like this:



enter image description here



How can I achieve something like that?






tikz-pgf







share|improve this question























  • Might be useful: tex.stackexchange.com/questions/53184/…

    – Raaja
    12 hours ago






  • 1





    I don't think you need to crop the blue part. You only have to draw the yellow part after the blue part -- in that case, the yellow part will overfill the blue part.

    – JouleV
    12 hours ago











  • @Roboticist If I understand your comment, you only need to put a white frame of the yellow part. This can be done with draw=white.

    – JouleV
    12 hours ago






  • 1





    @JouleV: The yellow background is indeed drawn "after" the blue background in the WE. Additionally, I'd like to know a potential approach to achieving margins with arbitrary shapes.

    – Roboticist
    12 hours ago


















5















The following WE



documentclass[border=10pt]{standalone}

usepackage[dvipsnames]{xcolor}

usepackage{tikz}

usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}



tikzstyle{backA}=[rectangle,

fill=blue!30,

inner sep=0.2cm,

rounded corners=0mm]



tikzstyle{backB}=[rectangle,

fill=purple!15,

inner sep=0.2cm,

rounded corners=0mm]



tikzstyle{backC}=[rectangle,

fill=yellow!40,

inner sep=0.2cm,

rounded corners=0mm]



tikzset{%

  >={Latex[width=2mm,length=2mm]},

            base/.style = {rectangle, rounded corners, draw=black,

                           minimum width=1cm, minimum height=1cm,

                           text centered,inner sep=0.3cm},

  operation/.style = {base, fill=SkyBlue},

}



begin{document}    

begin{tikzpicture}[node distance=0.8cm,

    every node/.style={fill=white}, align=center]

    node (controller) [operation] {Microcontroller};

    node (regulator) [operation, below = of controller] {Regulator};

    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};

    node (sensor) [operation, above = of controller] {Sensor};

    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};

    node (driver1) [operation, right = of sensor] {Driver 1};

    node (driver2) [operation, left = of sensor] {Driver 2};

    node (power) [operation, left = of regulator, align=center] {Input \ Power};

    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};

    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};

    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};

    coordinate[left = of power] (d1) {};

    coordinate[above = of d1, yshift=5.5cm] (d2) {};



    draw[->]             (controller) -- (transceiver);

    draw[<->]             (controller) -- (sensor);

    draw[->]             (driver1) -- (motor1);

    draw[->]             (driver2) -- (motor2);

    draw[<->]             (sensor) -- (motor2);

    draw[<->]             (sensor) -- (motor1);

    draw[->]             (controller) -- (driver1);

    draw[->]             (controller) -- (driver2);

    draw[->]             (controller) -- (flash);

    draw[->]             (regulator) -- (controller);

    draw[->]             (power) -- (regulator);

    draw[<->]             (transceiver) -- (computer);

    draw[->]             (power) -- (d1) |- (motor2);

    draw[->]             (power) -- (d1) --  (d2) -| (motor1);



    begin{pgfonlayer}{background}

    node [backC,

    fit=(driver1) (driver2) (sensor) (motor1) (motor2),

    label=above:{}] {};



    node [backA,

    fit=(computer) (transceiver),

    label=above:{}] {};



    node [backB,

    fit=(regulator) (power),

    label=above:{}] {};

    end{pgfonlayer}

  end{tikzpicture}

end{document}


yields



enter image description here



Since the driver1 node should have been exclusively covered by the yellow background, I need to subtract the specific part of the violet background which interferes with the yellow one. In particular, an acceptable boundary for the violet background may roughly be like this:



enter image description here



How can I achieve something like that?






tikz-pgf







share|improve this question























  • Might be useful: tex.stackexchange.com/questions/53184/…

    – Raaja
    12 hours ago






  • 1





    I don't think you need to crop the blue part. You only have to draw the yellow part after the blue part -- in that case, the yellow part will overfill the blue part.

    – JouleV
    12 hours ago











  • @Roboticist If I understand your comment, you only need to put a white frame of the yellow part. This can be done with draw=white.

    – JouleV
    12 hours ago






  • 1





    @JouleV: The yellow background is indeed drawn "after" the blue background in the WE. Additionally, I'd like to know a potential approach to achieving margins with arbitrary shapes.

    – Roboticist
    12 hours ago
















5












5








5


1






The following WE



documentclass[border=10pt]{standalone}

usepackage[dvipsnames]{xcolor}

usepackage{tikz}

usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}



tikzstyle{backA}=[rectangle,

fill=blue!30,

inner sep=0.2cm,

rounded corners=0mm]



tikzstyle{backB}=[rectangle,

fill=purple!15,

inner sep=0.2cm,

rounded corners=0mm]



tikzstyle{backC}=[rectangle,

fill=yellow!40,

inner sep=0.2cm,

rounded corners=0mm]



tikzset{%

  >={Latex[width=2mm,length=2mm]},

            base/.style = {rectangle, rounded corners, draw=black,

                           minimum width=1cm, minimum height=1cm,

                           text centered,inner sep=0.3cm},

  operation/.style = {base, fill=SkyBlue},

}



begin{document}    

begin{tikzpicture}[node distance=0.8cm,

    every node/.style={fill=white}, align=center]

    node (controller) [operation] {Microcontroller};

    node (regulator) [operation, below = of controller] {Regulator};

    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};

    node (sensor) [operation, above = of controller] {Sensor};

    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};

    node (driver1) [operation, right = of sensor] {Driver 1};

    node (driver2) [operation, left = of sensor] {Driver 2};

    node (power) [operation, left = of regulator, align=center] {Input \ Power};

    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};

    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};

    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};

    coordinate[left = of power] (d1) {};

    coordinate[above = of d1, yshift=5.5cm] (d2) {};



    draw[->]             (controller) -- (transceiver);

    draw[<->]             (controller) -- (sensor);

    draw[->]             (driver1) -- (motor1);

    draw[->]             (driver2) -- (motor2);

    draw[<->]             (sensor) -- (motor2);

    draw[<->]             (sensor) -- (motor1);

    draw[->]             (controller) -- (driver1);

    draw[->]             (controller) -- (driver2);

    draw[->]             (controller) -- (flash);

    draw[->]             (regulator) -- (controller);

    draw[->]             (power) -- (regulator);

    draw[<->]             (transceiver) -- (computer);

    draw[->]             (power) -- (d1) |- (motor2);

    draw[->]             (power) -- (d1) --  (d2) -| (motor1);



    begin{pgfonlayer}{background}

    node [backC,

    fit=(driver1) (driver2) (sensor) (motor1) (motor2),

    label=above:{}] {};



    node [backA,

    fit=(computer) (transceiver),

    label=above:{}] {};



    node [backB,

    fit=(regulator) (power),

    label=above:{}] {};

    end{pgfonlayer}

  end{tikzpicture}

end{document}


yields



enter image description here



Since the driver1 node should have been exclusively covered by the yellow background, I need to subtract the specific part of the violet background which interferes with the yellow one. In particular, an acceptable boundary for the violet background may roughly be like this:



enter image description here



How can I achieve something like that?






tikz-pgf







share|improve this question














The following WE



documentclass[border=10pt]{standalone}

usepackage[dvipsnames]{xcolor}

usepackage{tikz}

usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}



tikzstyle{backA}=[rectangle,

fill=blue!30,

inner sep=0.2cm,

rounded corners=0mm]



tikzstyle{backB}=[rectangle,

fill=purple!15,

inner sep=0.2cm,

rounded corners=0mm]



tikzstyle{backC}=[rectangle,

fill=yellow!40,

inner sep=0.2cm,

rounded corners=0mm]



tikzset{%

  >={Latex[width=2mm,length=2mm]},

            base/.style = {rectangle, rounded corners, draw=black,

                           minimum width=1cm, minimum height=1cm,

                           text centered,inner sep=0.3cm},

  operation/.style = {base, fill=SkyBlue},

}



begin{document}    

begin{tikzpicture}[node distance=0.8cm,

    every node/.style={fill=white}, align=center]

    node (controller) [operation] {Microcontroller};

    node (regulator) [operation, below = of controller] {Regulator};

    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};

    node (sensor) [operation, above = of controller] {Sensor};

    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};

    node (driver1) [operation, right = of sensor] {Driver 1};

    node (driver2) [operation, left = of sensor] {Driver 2};

    node (power) [operation, left = of regulator, align=center] {Input \ Power};

    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};

    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};

    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};

    coordinate[left = of power] (d1) {};

    coordinate[above = of d1, yshift=5.5cm] (d2) {};



    draw[->]             (controller) -- (transceiver);

    draw[<->]             (controller) -- (sensor);

    draw[->]             (driver1) -- (motor1);

    draw[->]             (driver2) -- (motor2);

    draw[<->]             (sensor) -- (motor2);

    draw[<->]             (sensor) -- (motor1);

    draw[->]             (controller) -- (driver1);

    draw[->]             (controller) -- (driver2);

    draw[->]             (controller) -- (flash);

    draw[->]             (regulator) -- (controller);

    draw[->]             (power) -- (regulator);

    draw[<->]             (transceiver) -- (computer);

    draw[->]             (power) -- (d1) |- (motor2);

    draw[->]             (power) -- (d1) --  (d2) -| (motor1);



    begin{pgfonlayer}{background}

    node [backC,

    fit=(driver1) (driver2) (sensor) (motor1) (motor2),

    label=above:{}] {};



    node [backA,

    fit=(computer) (transceiver),

    label=above:{}] {};



    node [backB,

    fit=(regulator) (power),

    label=above:{}] {};

    end{pgfonlayer}

  end{tikzpicture}

end{document}


yields



enter image description here



Since the driver1 node should have been exclusively covered by the yellow background, I need to subtract the specific part of the violet background which interferes with the yellow one. In particular, an acceptable boundary for the violet background may roughly be like this:



enter image description here



How can I achieve something like that?






tikz-pgf




tikz-pgf






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 12 hours ago









RoboticistRoboticist

1,69121231




1,69121231













  • Might be useful: tex.stackexchange.com/questions/53184/…

    – Raaja
    12 hours ago






  • 1





    I don't think you need to crop the blue part. You only have to draw the yellow part after the blue part -- in that case, the yellow part will overfill the blue part.

    – JouleV
    12 hours ago











  • @Roboticist If I understand your comment, you only need to put a white frame of the yellow part. This can be done with draw=white.

    – JouleV
    12 hours ago






  • 1





    @JouleV: The yellow background is indeed drawn "after" the blue background in the WE. Additionally, I'd like to know a potential approach to achieving margins with arbitrary shapes.

    – Roboticist
    12 hours ago





















  • Might be useful: tex.stackexchange.com/questions/53184/…

    – Raaja
    12 hours ago






  • 1





    I don't think you need to crop the blue part. You only have to draw the yellow part after the blue part -- in that case, the yellow part will overfill the blue part.

    – JouleV
    12 hours ago











  • @Roboticist If I understand your comment, you only need to put a white frame of the yellow part. This can be done with draw=white.

    – JouleV
    12 hours ago






  • 1





    @JouleV: The yellow background is indeed drawn "after" the blue background in the WE. Additionally, I'd like to know a potential approach to achieving margins with arbitrary shapes.

    – Roboticist
    12 hours ago



















Might be useful: tex.stackexchange.com/questions/53184/…

– Raaja
12 hours ago





Might be useful: tex.stackexchange.com/questions/53184/…

– Raaja
12 hours ago




1




1





I don't think you need to crop the blue part. You only have to draw the yellow part after the blue part -- in that case, the yellow part will overfill the blue part.

– JouleV
12 hours ago





I don't think you need to crop the blue part. You only have to draw the yellow part after the blue part -- in that case, the yellow part will overfill the blue part.

– JouleV
12 hours ago













@Roboticist If I understand your comment, you only need to put a white frame of the yellow part. This can be done with draw=white.

– JouleV
12 hours ago





@Roboticist If I understand your comment, you only need to put a white frame of the yellow part. This can be done with draw=white.

– JouleV
12 hours ago




1




1





@JouleV: The yellow background is indeed drawn "after" the blue background in the WE. Additionally, I'd like to know a potential approach to achieving margins with arbitrary shapes.

– Roboticist
12 hours ago







@JouleV: The yellow background is indeed drawn "after" the blue background in the WE. Additionally, I'd like to know a potential approach to achieving margins with arbitrary shapes.

– Roboticist
12 hours ago












3 Answers
3






active

oldest

votes


















4














I would not overdraw areas with white, imagine you have some background you want to keep. And tikzstyle is deprecated. 



documentclass[border=10pt]{standalone}

usepackage[dvipsnames]{xcolor}

usepackage{tikz}

usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}



% based on https://tex.stackexchange.com/a/12033/121799

tikzset{reverseclip/.style={insert path={(current bounding box.south west)rectangle 

  (current bounding box.north east)} }}



tikzset{backA/.style={rectangle,

fill=blue!30,

inner sep=0.2cm,

rounded corners=0mm},

backB/.style={rectangle,

fill=purple!15,

inner sep=0.2cm,

rounded corners=0mm},

backC/.style={rectangle,

fill=yellow!40,

inner sep=0.2cm,

rounded corners=0mm}}



tikzset{%

  >={Latex[width=2mm,length=2mm]},

            base/.style = {rectangle, rounded corners, draw=black,

                           minimum width=1cm, minimum height=1cm,

                           text centered,inner sep=0.3cm},

  operation/.style = {base, fill=SkyBlue},

}



begin{document}    

begin{tikzpicture}[node distance=0.8cm,

    every node/.style={fill=white}, align=center]

    node (controller) [operation] {Microcontroller};

    node (regulator) [operation, below = of controller] {Regulator};

    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};

    node (sensor) [operation, above = of controller] {Sensor};

    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};

    node (driver1) [operation, right = of sensor] {Driver 1};

    node (driver2) [operation, left = of sensor] {Driver 2};

    node (power) [operation, left = of regulator, align=center] {Input \ Power};

    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};

    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};

    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};

    coordinate[left = of power] (d1) {};

    coordinate[above = of d1, yshift=5.5cm] (d2) {};



    draw[->]             (controller) -- (transceiver);

    draw[<->]             (controller) -- (sensor);

    draw[->]             (driver1) -- (motor1);

    draw[->]             (driver2) -- (motor2);

    draw[<->]             (sensor) -- (motor2);

    draw[<->]             (sensor) -- (motor1);

    draw[->]             (controller) -- (driver1);

    draw[->]             (controller) -- (driver2);

    draw[->]             (controller) -- (flash);

    draw[->]             (regulator) -- (controller);

    draw[->]             (power) -- (regulator);

    draw[<->]             (transceiver) -- (computer);

    draw[->]             (power) -- (d1) |- (motor2);

    draw[->]             (power) -- (d1) --  (d2) -| (motor1);



    begin{pgfonlayer}{background}

    node [backC,

    fit=(driver1) (driver2) (sensor) (motor1) (motor2),

    label=above:{}] (F1){};



    node [backB,

    fit=(regulator) (power),

    label=above:{}] {};

    clip ([xshift=-5pt,yshift=-5pt]F1.south west) -|

    ([xshift=5pt,yshift=5pt]F1.north east) -| cycle  [reverseclip];

    node [backA,

    fit=(computer) (transceiver),

    label=above:{}] {};

    end{pgfonlayer}

  end{tikzpicture}

end{document}


enter image description here






share|improve this answer































    3














    Like this?



    screenshot



    documentclass[border=10pt]{standalone}
    
usepackage[dvipsnames]{xcolor}
    
usepackage{tikz}
    
usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}
    
pgfdeclarelayer{background}
    
pgfdeclarelayer{middle}
    
pgfdeclarelayer{foreground}
    
pgfsetlayers{background,main,middle,foreground}
    
tikzstyle{backA}=[rectangle,
    
fill=blue!30,
    
inner sep=0.2cm,
    
rounded corners=0mm]
    

    
tikzstyle{backB}=[rectangle,
    
fill=purple!15,
    
inner sep=0.2cm,
    
rounded corners=0mm]
    

    
tikzstyle{backC}=[rectangle,
    
fill=yellow!40,
    
%inner sep=0.2cm,
    
rounded corners=0mm]
    

    
tikzset{%
    
  >={Latex[width=2mm,length=2mm]},
    
            base/.style = {rectangle, rounded corners, draw=black,
    
                           minimum width=1cm, minimum height=1cm,
    
                           text centered,inner sep=0.3cm},
    
  operation/.style = {base, fill=SkyBlue},
    
}
    

    
begin{document}    
    
begin{tikzpicture}[node distance=0.8cm,
    
    every node/.style={fill=white}, align=center]
    
    begin{pgfonlayer}{foreground}
    
    node (controller) [operation] {Microcontroller};
    
    node (regulator) [operation, below = of controller] {Regulator};
    
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
    
    node (sensor) [operation, above = of controller] {Sensor};
    
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
    
    node (driver1) [operation, right = of sensor] {Driver 1};
    
    node (driver2) [operation, left = of sensor] {Driver 2};
    
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
    
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
    
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
    
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
    
    coordinate[left = of power] (d1) {};
    
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
    

    
    draw[->]             (controller) -- (transceiver);
    
    draw[<->]             (controller) -- (sensor);
    
    draw[->]             (driver1) -- (motor1);
    
    draw[->]             (driver2) -- (motor2);
    
    draw[<->]             (sensor) -- (motor2);
    
    draw[<->]             (sensor) -- (motor1);
    
    draw[->]             (controller) -- (driver1);
    
    draw[->]             (controller) -- (driver2);
    
    draw[->]             (controller) -- (flash);
    
    draw[->]             (regulator) -- (controller);
    
    draw[->]             (power) -- (regulator);
    
    draw[<->]             (transceiver) -- (computer);
    
    draw[->]             (power) -- (d1) |- (motor2);
    
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
    
end{pgfonlayer}
    
    begin{pgfonlayer}{middle}
    
    node [backC,
    
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
    
    label=above:{}] {};
    
end{pgfonlayer}
    
    begin{pgfonlayer}{main}
    
    node [fill=white,inner sep=3mm,
    
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
    
    label=above:{}] {};
    
end{pgfonlayer}
    
begin{pgfonlayer}{background}
    
    node [backA,
    
    fit=(computer) (transceiver),
    
    label=above:{}] {};
    
end{pgfonlayer}
    
    node [backB,
    
    fit=(regulator) (power),
    
    label=above:{}] {};
    
  end{tikzpicture}
    
end{document}





    share|improve this answer





















    • 1





      How can one insert a little of white margin between the boundaries of the two backgrounds? I mean, the backgrounds are tangent to each other right now.

      – Roboticist
      11 hours ago













    • @Roboticist I have updated my answer by adding another layer named middle

      – AndréC
      11 hours ago





















    2














    For arbitrary shapes (not nodes), one cannot use fitting.
    demo



    documentclass[border=10pt]{standalone}
    
usepackage[dvipsnames]{xcolor}
    
usepackage{tikz}
    
usetikzlibrary{arrows.meta,shapes, positioning, calc, backgrounds}
    

    
tikzset{%
    
  >={Latex[width=2mm,length=2mm]},
    
            base/.style = {rectangle, rounded corners, draw=black,
    
                           minimum width=1cm, minimum height=1cm,
    
                           text centered,inner sep=0.3cm},
    
  operation/.style = {base, fill=SkyBlue},
    
}
    

    
begin{document}    
    
begin{tikzpicture}[node distance=0.8cm,
    
    every node/.style={fill=white}, align=center]
    
    node (controller) [operation] {Microcontroller};
    
    node (regulator) [operation, below = of controller] {Regulator};
    
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
    
    node (sensor) [operation, above = of controller] {Sensor};
    
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
    
    node (driver1) [operation, right = of sensor] {Driver 1};
    
    node (driver2) [operation, left = of sensor] {Driver 2};
    
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
    
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
    
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
    
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
    
    coordinate[left = of power] (d1) {};
    
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
    

    
    draw[->]             (controller) -- (transceiver);
    
    draw[<->]             (controller) -- (sensor);
    
    draw[->]             (driver1) -- (motor1);
    
    draw[->]             (driver2) -- (motor2);
    
    draw[<->]             (sensor) -- (motor2);
    
    draw[<->]             (sensor) -- (motor1);
    
    draw[->]             (controller) -- (driver1);
    
    draw[->]             (controller) -- (driver2);
    
    draw[->]             (controller) -- (flash);
    
    draw[->]             (regulator) -- (controller);
    
    draw[->]             (power) -- (regulator);
    
    draw[<->]             (transceiver) -- (computer);
    
    draw[->]             (power) -- (d1) |- (motor2);
    
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
    

    
    begin{pgfonlayer}{background}
    
    path (driver1.east |- computer.north) ++ (0.2,0.2) coordinate(int1);
    
    path (driver2.south -| transceiver.west) ++ (-0.2,-0.2) coordinate(int2);
    

    
    fill[yellow!40] ($(driver2.south west)+(-0.2,-0.2)$) |- ($(motor2.north)+(0,0.2)$) -| (int1) -- (int2) -- cycle;
    
    fill[blue!30] ($(transceiver.south west)+(-0.2,-0.2)$) -- (int2) -- (int1) -- 
    
      ($(computer.north)+(0,0.2)$) -| ($(computer.east)+(0.2,0)$) |- cycle;
    
    fill[purple!15] ($(power.south west)+(-0.2,-0.2)$) |- ($(power.north)+(0,0.2)$) -| ($(regulator.east)+(0.2,0.2)$) |- cycle;
    
    end{pgfonlayer}
    
  end{tikzpicture}
    
end{document}





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      3 Answers
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      3 Answers
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      4














      I would not overdraw areas with white, imagine you have some background you want to keep. And tikzstyle is deprecated. 



      documentclass[border=10pt]{standalone}
      
usepackage[dvipsnames]{xcolor}
      
usepackage{tikz}
      
usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}
      

      
% based on https://tex.stackexchange.com/a/12033/121799
      
tikzset{reverseclip/.style={insert path={(current bounding box.south west)rectangle 
      
  (current bounding box.north east)} }}
      

      
tikzset{backA/.style={rectangle,
      
fill=blue!30,
      
inner sep=0.2cm,
      
rounded corners=0mm},
      
backB/.style={rectangle,
      
fill=purple!15,
      
inner sep=0.2cm,
      
rounded corners=0mm},
      
backC/.style={rectangle,
      
fill=yellow!40,
      
inner sep=0.2cm,
      
rounded corners=0mm}}
      

      
tikzset{%
      
  >={Latex[width=2mm,length=2mm]},
      
            base/.style = {rectangle, rounded corners, draw=black,
      
                           minimum width=1cm, minimum height=1cm,
      
                           text centered,inner sep=0.3cm},
      
  operation/.style = {base, fill=SkyBlue},
      
}
      

      
begin{document}    
      
begin{tikzpicture}[node distance=0.8cm,
      
    every node/.style={fill=white}, align=center]
      
    node (controller) [operation] {Microcontroller};
      
    node (regulator) [operation, below = of controller] {Regulator};
      
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
      
    node (sensor) [operation, above = of controller] {Sensor};
      
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
      
    node (driver1) [operation, right = of sensor] {Driver 1};
      
    node (driver2) [operation, left = of sensor] {Driver 2};
      
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
      
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
      
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
      
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
      
    coordinate[left = of power] (d1) {};
      
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
      

      
    draw[->]             (controller) -- (transceiver);
      
    draw[<->]             (controller) -- (sensor);
      
    draw[->]             (driver1) -- (motor1);
      
    draw[->]             (driver2) -- (motor2);
      
    draw[<->]             (sensor) -- (motor2);
      
    draw[<->]             (sensor) -- (motor1);
      
    draw[->]             (controller) -- (driver1);
      
    draw[->]             (controller) -- (driver2);
      
    draw[->]             (controller) -- (flash);
      
    draw[->]             (regulator) -- (controller);
      
    draw[->]             (power) -- (regulator);
      
    draw[<->]             (transceiver) -- (computer);
      
    draw[->]             (power) -- (d1) |- (motor2);
      
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
      

      
    begin{pgfonlayer}{background}
      
    node [backC,
      
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
      
    label=above:{}] (F1){};
      

      
    node [backB,
      
    fit=(regulator) (power),
      
    label=above:{}] {};
      
    clip ([xshift=-5pt,yshift=-5pt]F1.south west) -|
      
    ([xshift=5pt,yshift=5pt]F1.north east) -| cycle  [reverseclip];
      
    node [backA,
      
    fit=(computer) (transceiver),
      
    label=above:{}] {};
      
    end{pgfonlayer}
      
  end{tikzpicture}
      
end{document}


      enter image description here






      share|improve this answer




























        4














        I would not overdraw areas with white, imagine you have some background you want to keep. And tikzstyle is deprecated. 



        documentclass[border=10pt]{standalone}
        
usepackage[dvipsnames]{xcolor}
        
usepackage{tikz}
        
usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}
        

        
% based on https://tex.stackexchange.com/a/12033/121799
        
tikzset{reverseclip/.style={insert path={(current bounding box.south west)rectangle 
        
  (current bounding box.north east)} }}
        

        
tikzset{backA/.style={rectangle,
        
fill=blue!30,
        
inner sep=0.2cm,
        
rounded corners=0mm},
        
backB/.style={rectangle,
        
fill=purple!15,
        
inner sep=0.2cm,
        
rounded corners=0mm},
        
backC/.style={rectangle,
        
fill=yellow!40,
        
inner sep=0.2cm,
        
rounded corners=0mm}}
        

        
tikzset{%
        
  >={Latex[width=2mm,length=2mm]},
        
            base/.style = {rectangle, rounded corners, draw=black,
        
                           minimum width=1cm, minimum height=1cm,
        
                           text centered,inner sep=0.3cm},
        
  operation/.style = {base, fill=SkyBlue},
        
}
        

        
begin{document}    
        
begin{tikzpicture}[node distance=0.8cm,
        
    every node/.style={fill=white}, align=center]
        
    node (controller) [operation] {Microcontroller};
        
    node (regulator) [operation, below = of controller] {Regulator};
        
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
        
    node (sensor) [operation, above = of controller] {Sensor};
        
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
        
    node (driver1) [operation, right = of sensor] {Driver 1};
        
    node (driver2) [operation, left = of sensor] {Driver 2};
        
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
        
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
        
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
        
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
        
    coordinate[left = of power] (d1) {};
        
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
        

        
    draw[->]             (controller) -- (transceiver);
        
    draw[<->]             (controller) -- (sensor);
        
    draw[->]             (driver1) -- (motor1);
        
    draw[->]             (driver2) -- (motor2);
        
    draw[<->]             (sensor) -- (motor2);
        
    draw[<->]             (sensor) -- (motor1);
        
    draw[->]             (controller) -- (driver1);
        
    draw[->]             (controller) -- (driver2);
        
    draw[->]             (controller) -- (flash);
        
    draw[->]             (regulator) -- (controller);
        
    draw[->]             (power) -- (regulator);
        
    draw[<->]             (transceiver) -- (computer);
        
    draw[->]             (power) -- (d1) |- (motor2);
        
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
        

        
    begin{pgfonlayer}{background}
        
    node [backC,
        
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
        
    label=above:{}] (F1){};
        

        
    node [backB,
        
    fit=(regulator) (power),
        
    label=above:{}] {};
        
    clip ([xshift=-5pt,yshift=-5pt]F1.south west) -|
        
    ([xshift=5pt,yshift=5pt]F1.north east) -| cycle  [reverseclip];
        
    node [backA,
        
    fit=(computer) (transceiver),
        
    label=above:{}] {};
        
    end{pgfonlayer}
        
  end{tikzpicture}
        
end{document}


        enter image description here






        share|improve this answer


























          4












          4








          4







          I would not overdraw areas with white, imagine you have some background you want to keep. And tikzstyle is deprecated. 



          documentclass[border=10pt]{standalone}
          
usepackage[dvipsnames]{xcolor}
          
usepackage{tikz}
          
usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}
          

          
% based on https://tex.stackexchange.com/a/12033/121799
          
tikzset{reverseclip/.style={insert path={(current bounding box.south west)rectangle 
          
  (current bounding box.north east)} }}
          

          
tikzset{backA/.style={rectangle,
          
fill=blue!30,
          
inner sep=0.2cm,
          
rounded corners=0mm},
          
backB/.style={rectangle,
          
fill=purple!15,
          
inner sep=0.2cm,
          
rounded corners=0mm},
          
backC/.style={rectangle,
          
fill=yellow!40,
          
inner sep=0.2cm,
          
rounded corners=0mm}}
          

          
tikzset{%
          
  >={Latex[width=2mm,length=2mm]},
          
            base/.style = {rectangle, rounded corners, draw=black,
          
                           minimum width=1cm, minimum height=1cm,
          
                           text centered,inner sep=0.3cm},
          
  operation/.style = {base, fill=SkyBlue},
          
}
          

          
begin{document}    
          
begin{tikzpicture}[node distance=0.8cm,
          
    every node/.style={fill=white}, align=center]
          
    node (controller) [operation] {Microcontroller};
          
    node (regulator) [operation, below = of controller] {Regulator};
          
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
          
    node (sensor) [operation, above = of controller] {Sensor};
          
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
          
    node (driver1) [operation, right = of sensor] {Driver 1};
          
    node (driver2) [operation, left = of sensor] {Driver 2};
          
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
          
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
          
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
          
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
          
    coordinate[left = of power] (d1) {};
          
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
          

          
    draw[->]             (controller) -- (transceiver);
          
    draw[<->]             (controller) -- (sensor);
          
    draw[->]             (driver1) -- (motor1);
          
    draw[->]             (driver2) -- (motor2);
          
    draw[<->]             (sensor) -- (motor2);
          
    draw[<->]             (sensor) -- (motor1);
          
    draw[->]             (controller) -- (driver1);
          
    draw[->]             (controller) -- (driver2);
          
    draw[->]             (controller) -- (flash);
          
    draw[->]             (regulator) -- (controller);
          
    draw[->]             (power) -- (regulator);
          
    draw[<->]             (transceiver) -- (computer);
          
    draw[->]             (power) -- (d1) |- (motor2);
          
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
          

          
    begin{pgfonlayer}{background}
          
    node [backC,
          
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
          
    label=above:{}] (F1){};
          

          
    node [backB,
          
    fit=(regulator) (power),
          
    label=above:{}] {};
          
    clip ([xshift=-5pt,yshift=-5pt]F1.south west) -|
          
    ([xshift=5pt,yshift=5pt]F1.north east) -| cycle  [reverseclip];
          
    node [backA,
          
    fit=(computer) (transceiver),
          
    label=above:{}] {};
          
    end{pgfonlayer}
          
  end{tikzpicture}
          
end{document}


          enter image description here






          share|improve this answer













          I would not overdraw areas with white, imagine you have some background you want to keep. And tikzstyle is deprecated. 



          documentclass[border=10pt]{standalone}
          
usepackage[dvipsnames]{xcolor}
          
usepackage{tikz}
          
usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}
          

          
% based on https://tex.stackexchange.com/a/12033/121799
          
tikzset{reverseclip/.style={insert path={(current bounding box.south west)rectangle 
          
  (current bounding box.north east)} }}
          

          
tikzset{backA/.style={rectangle,
          
fill=blue!30,
          
inner sep=0.2cm,
          
rounded corners=0mm},
          
backB/.style={rectangle,
          
fill=purple!15,
          
inner sep=0.2cm,
          
rounded corners=0mm},
          
backC/.style={rectangle,
          
fill=yellow!40,
          
inner sep=0.2cm,
          
rounded corners=0mm}}
          

          
tikzset{%
          
  >={Latex[width=2mm,length=2mm]},
          
            base/.style = {rectangle, rounded corners, draw=black,
          
                           minimum width=1cm, minimum height=1cm,
          
                           text centered,inner sep=0.3cm},
          
  operation/.style = {base, fill=SkyBlue},
          
}
          

          
begin{document}    
          
begin{tikzpicture}[node distance=0.8cm,
          
    every node/.style={fill=white}, align=center]
          
    node (controller) [operation] {Microcontroller};
          
    node (regulator) [operation, below = of controller] {Regulator};
          
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
          
    node (sensor) [operation, above = of controller] {Sensor};
          
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
          
    node (driver1) [operation, right = of sensor] {Driver 1};
          
    node (driver2) [operation, left = of sensor] {Driver 2};
          
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
          
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
          
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
          
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
          
    coordinate[left = of power] (d1) {};
          
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
          

          
    draw[->]             (controller) -- (transceiver);
          
    draw[<->]             (controller) -- (sensor);
          
    draw[->]             (driver1) -- (motor1);
          
    draw[->]             (driver2) -- (motor2);
          
    draw[<->]             (sensor) -- (motor2);
          
    draw[<->]             (sensor) -- (motor1);
          
    draw[->]             (controller) -- (driver1);
          
    draw[->]             (controller) -- (driver2);
          
    draw[->]             (controller) -- (flash);
          
    draw[->]             (regulator) -- (controller);
          
    draw[->]             (power) -- (regulator);
          
    draw[<->]             (transceiver) -- (computer);
          
    draw[->]             (power) -- (d1) |- (motor2);
          
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
          

          
    begin{pgfonlayer}{background}
          
    node [backC,
          
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
          
    label=above:{}] (F1){};
          

          
    node [backB,
          
    fit=(regulator) (power),
          
    label=above:{}] {};
          
    clip ([xshift=-5pt,yshift=-5pt]F1.south west) -|
          
    ([xshift=5pt,yshift=5pt]F1.north east) -| cycle  [reverseclip];
          
    node [backA,
          
    fit=(computer) (transceiver),
          
    label=above:{}] {};
          
    end{pgfonlayer}
          
  end{tikzpicture}
          
end{document}


          enter image description here







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 10 hours ago









          marmotmarmot

          108k5131247




          108k5131247























              3














              Like this?



              screenshot



              documentclass[border=10pt]{standalone}
              
usepackage[dvipsnames]{xcolor}
              
usepackage{tikz}
              
usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}
              
pgfdeclarelayer{background}
              
pgfdeclarelayer{middle}
              
pgfdeclarelayer{foreground}
              
pgfsetlayers{background,main,middle,foreground}
              
tikzstyle{backA}=[rectangle,
              
fill=blue!30,
              
inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzstyle{backB}=[rectangle,
              
fill=purple!15,
              
inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzstyle{backC}=[rectangle,
              
fill=yellow!40,
              
%inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzset{%
              
  >={Latex[width=2mm,length=2mm]},
              
            base/.style = {rectangle, rounded corners, draw=black,
              
                           minimum width=1cm, minimum height=1cm,
              
                           text centered,inner sep=0.3cm},
              
  operation/.style = {base, fill=SkyBlue},
              
}
              

              
begin{document}    
              
begin{tikzpicture}[node distance=0.8cm,
              
    every node/.style={fill=white}, align=center]
              
    begin{pgfonlayer}{foreground}
              
    node (controller) [operation] {Microcontroller};
              
    node (regulator) [operation, below = of controller] {Regulator};
              
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
              
    node (sensor) [operation, above = of controller] {Sensor};
              
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
              
    node (driver1) [operation, right = of sensor] {Driver 1};
              
    node (driver2) [operation, left = of sensor] {Driver 2};
              
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
              
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
              
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
              
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
              
    coordinate[left = of power] (d1) {};
              
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
              

              
    draw[->]             (controller) -- (transceiver);
              
    draw[<->]             (controller) -- (sensor);
              
    draw[->]             (driver1) -- (motor1);
              
    draw[->]             (driver2) -- (motor2);
              
    draw[<->]             (sensor) -- (motor2);
              
    draw[<->]             (sensor) -- (motor1);
              
    draw[->]             (controller) -- (driver1);
              
    draw[->]             (controller) -- (driver2);
              
    draw[->]             (controller) -- (flash);
              
    draw[->]             (regulator) -- (controller);
              
    draw[->]             (power) -- (regulator);
              
    draw[<->]             (transceiver) -- (computer);
              
    draw[->]             (power) -- (d1) |- (motor2);
              
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
              
end{pgfonlayer}
              
    begin{pgfonlayer}{middle}
              
    node [backC,
              
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
    begin{pgfonlayer}{main}
              
    node [fill=white,inner sep=3mm,
              
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
begin{pgfonlayer}{background}
              
    node [backA,
              
    fit=(computer) (transceiver),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
    node [backB,
              
    fit=(regulator) (power),
              
    label=above:{}] {};
              
  end{tikzpicture}
              
end{document}





              share|improve this answer





















              • 1





                How can one insert a little of white margin between the boundaries of the two backgrounds? I mean, the backgrounds are tangent to each other right now.

                – Roboticist
                11 hours ago













              • @Roboticist I have updated my answer by adding another layer named middle

                – AndréC
                11 hours ago


















              3














              Like this?



              screenshot



              documentclass[border=10pt]{standalone}
              
usepackage[dvipsnames]{xcolor}
              
usepackage{tikz}
              
usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}
              
pgfdeclarelayer{background}
              
pgfdeclarelayer{middle}
              
pgfdeclarelayer{foreground}
              
pgfsetlayers{background,main,middle,foreground}
              
tikzstyle{backA}=[rectangle,
              
fill=blue!30,
              
inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzstyle{backB}=[rectangle,
              
fill=purple!15,
              
inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzstyle{backC}=[rectangle,
              
fill=yellow!40,
              
%inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzset{%
              
  >={Latex[width=2mm,length=2mm]},
              
            base/.style = {rectangle, rounded corners, draw=black,
              
                           minimum width=1cm, minimum height=1cm,
              
                           text centered,inner sep=0.3cm},
              
  operation/.style = {base, fill=SkyBlue},
              
}
              

              
begin{document}    
              
begin{tikzpicture}[node distance=0.8cm,
              
    every node/.style={fill=white}, align=center]
              
    begin{pgfonlayer}{foreground}
              
    node (controller) [operation] {Microcontroller};
              
    node (regulator) [operation, below = of controller] {Regulator};
              
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
              
    node (sensor) [operation, above = of controller] {Sensor};
              
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
              
    node (driver1) [operation, right = of sensor] {Driver 1};
              
    node (driver2) [operation, left = of sensor] {Driver 2};
              
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
              
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
              
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
              
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
              
    coordinate[left = of power] (d1) {};
              
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
              

              
    draw[->]             (controller) -- (transceiver);
              
    draw[<->]             (controller) -- (sensor);
              
    draw[->]             (driver1) -- (motor1);
              
    draw[->]             (driver2) -- (motor2);
              
    draw[<->]             (sensor) -- (motor2);
              
    draw[<->]             (sensor) -- (motor1);
              
    draw[->]             (controller) -- (driver1);
              
    draw[->]             (controller) -- (driver2);
              
    draw[->]             (controller) -- (flash);
              
    draw[->]             (regulator) -- (controller);
              
    draw[->]             (power) -- (regulator);
              
    draw[<->]             (transceiver) -- (computer);
              
    draw[->]             (power) -- (d1) |- (motor2);
              
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
              
end{pgfonlayer}
              
    begin{pgfonlayer}{middle}
              
    node [backC,
              
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
    begin{pgfonlayer}{main}
              
    node [fill=white,inner sep=3mm,
              
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
begin{pgfonlayer}{background}
              
    node [backA,
              
    fit=(computer) (transceiver),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
    node [backB,
              
    fit=(regulator) (power),
              
    label=above:{}] {};
              
  end{tikzpicture}
              
end{document}





              share|improve this answer





















              • 1





                How can one insert a little of white margin between the boundaries of the two backgrounds? I mean, the backgrounds are tangent to each other right now.

                – Roboticist
                11 hours ago













              • @Roboticist I have updated my answer by adding another layer named middle

                – AndréC
                11 hours ago
















              3












              3








              3







              Like this?



              screenshot



              documentclass[border=10pt]{standalone}
              
usepackage[dvipsnames]{xcolor}
              
usepackage{tikz}
              
usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}
              
pgfdeclarelayer{background}
              
pgfdeclarelayer{middle}
              
pgfdeclarelayer{foreground}
              
pgfsetlayers{background,main,middle,foreground}
              
tikzstyle{backA}=[rectangle,
              
fill=blue!30,
              
inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzstyle{backB}=[rectangle,
              
fill=purple!15,
              
inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzstyle{backC}=[rectangle,
              
fill=yellow!40,
              
%inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzset{%
              
  >={Latex[width=2mm,length=2mm]},
              
            base/.style = {rectangle, rounded corners, draw=black,
              
                           minimum width=1cm, minimum height=1cm,
              
                           text centered,inner sep=0.3cm},
              
  operation/.style = {base, fill=SkyBlue},
              
}
              

              
begin{document}    
              
begin{tikzpicture}[node distance=0.8cm,
              
    every node/.style={fill=white}, align=center]
              
    begin{pgfonlayer}{foreground}
              
    node (controller) [operation] {Microcontroller};
              
    node (regulator) [operation, below = of controller] {Regulator};
              
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
              
    node (sensor) [operation, above = of controller] {Sensor};
              
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
              
    node (driver1) [operation, right = of sensor] {Driver 1};
              
    node (driver2) [operation, left = of sensor] {Driver 2};
              
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
              
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
              
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
              
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
              
    coordinate[left = of power] (d1) {};
              
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
              

              
    draw[->]             (controller) -- (transceiver);
              
    draw[<->]             (controller) -- (sensor);
              
    draw[->]             (driver1) -- (motor1);
              
    draw[->]             (driver2) -- (motor2);
              
    draw[<->]             (sensor) -- (motor2);
              
    draw[<->]             (sensor) -- (motor1);
              
    draw[->]             (controller) -- (driver1);
              
    draw[->]             (controller) -- (driver2);
              
    draw[->]             (controller) -- (flash);
              
    draw[->]             (regulator) -- (controller);
              
    draw[->]             (power) -- (regulator);
              
    draw[<->]             (transceiver) -- (computer);
              
    draw[->]             (power) -- (d1) |- (motor2);
              
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
              
end{pgfonlayer}
              
    begin{pgfonlayer}{middle}
              
    node [backC,
              
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
    begin{pgfonlayer}{main}
              
    node [fill=white,inner sep=3mm,
              
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
begin{pgfonlayer}{background}
              
    node [backA,
              
    fit=(computer) (transceiver),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
    node [backB,
              
    fit=(regulator) (power),
              
    label=above:{}] {};
              
  end{tikzpicture}
              
end{document}





              share|improve this answer















              Like this?



              screenshot



              documentclass[border=10pt]{standalone}
              
usepackage[dvipsnames]{xcolor}
              
usepackage{tikz}
              
usetikzlibrary{arrows.meta,shapes, positioning, fit, backgrounds}
              
pgfdeclarelayer{background}
              
pgfdeclarelayer{middle}
              
pgfdeclarelayer{foreground}
              
pgfsetlayers{background,main,middle,foreground}
              
tikzstyle{backA}=[rectangle,
              
fill=blue!30,
              
inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzstyle{backB}=[rectangle,
              
fill=purple!15,
              
inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzstyle{backC}=[rectangle,
              
fill=yellow!40,
              
%inner sep=0.2cm,
              
rounded corners=0mm]
              

              
tikzset{%
              
  >={Latex[width=2mm,length=2mm]},
              
            base/.style = {rectangle, rounded corners, draw=black,
              
                           minimum width=1cm, minimum height=1cm,
              
                           text centered,inner sep=0.3cm},
              
  operation/.style = {base, fill=SkyBlue},
              
}
              

              
begin{document}    
              
begin{tikzpicture}[node distance=0.8cm,
              
    every node/.style={fill=white}, align=center]
              
    begin{pgfonlayer}{foreground}
              
    node (controller) [operation] {Microcontroller};
              
    node (regulator) [operation, below = of controller] {Regulator};
              
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
              
    node (sensor) [operation, above = of controller] {Sensor};
              
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
              
    node (driver1) [operation, right = of sensor] {Driver 1};
              
    node (driver2) [operation, left = of sensor] {Driver 2};
              
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
              
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
              
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
              
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
              
    coordinate[left = of power] (d1) {};
              
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
              

              
    draw[->]             (controller) -- (transceiver);
              
    draw[<->]             (controller) -- (sensor);
              
    draw[->]             (driver1) -- (motor1);
              
    draw[->]             (driver2) -- (motor2);
              
    draw[<->]             (sensor) -- (motor2);
              
    draw[<->]             (sensor) -- (motor1);
              
    draw[->]             (controller) -- (driver1);
              
    draw[->]             (controller) -- (driver2);
              
    draw[->]             (controller) -- (flash);
              
    draw[->]             (regulator) -- (controller);
              
    draw[->]             (power) -- (regulator);
              
    draw[<->]             (transceiver) -- (computer);
              
    draw[->]             (power) -- (d1) |- (motor2);
              
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
              
end{pgfonlayer}
              
    begin{pgfonlayer}{middle}
              
    node [backC,
              
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
    begin{pgfonlayer}{main}
              
    node [fill=white,inner sep=3mm,
              
    fit=(driver1) (driver2) (sensor) (motor1) (motor2),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
begin{pgfonlayer}{background}
              
    node [backA,
              
    fit=(computer) (transceiver),
              
    label=above:{}] {};
              
end{pgfonlayer}
              
    node [backB,
              
    fit=(regulator) (power),
              
    label=above:{}] {};
              
  end{tikzpicture}
              
end{document}






              share|improve this answer














              share|improve this answer



              share|improve this answer








              edited 11 hours ago

























              answered 11 hours ago









              AndréCAndréC

              1




              1








              • 1





                How can one insert a little of white margin between the boundaries of the two backgrounds? I mean, the backgrounds are tangent to each other right now.

                – Roboticist
                11 hours ago













              • @Roboticist I have updated my answer by adding another layer named middle

                – AndréC
                11 hours ago
















              • 1





                How can one insert a little of white margin between the boundaries of the two backgrounds? I mean, the backgrounds are tangent to each other right now.

                – Roboticist
                11 hours ago













              • @Roboticist I have updated my answer by adding another layer named middle

                – AndréC
                11 hours ago










              1




              1





              How can one insert a little of white margin between the boundaries of the two backgrounds? I mean, the backgrounds are tangent to each other right now.

              – Roboticist
              11 hours ago







              How can one insert a little of white margin between the boundaries of the two backgrounds? I mean, the backgrounds are tangent to each other right now.

              – Roboticist
              11 hours ago















              @Roboticist I have updated my answer by adding another layer named middle

              – AndréC
              11 hours ago







              @Roboticist I have updated my answer by adding another layer named middle

              – AndréC
              11 hours ago













              2














              For arbitrary shapes (not nodes), one cannot use fitting.
              demo



              documentclass[border=10pt]{standalone}
              
usepackage[dvipsnames]{xcolor}
              
usepackage{tikz}
              
usetikzlibrary{arrows.meta,shapes, positioning, calc, backgrounds}
              

              
tikzset{%
              
  >={Latex[width=2mm,length=2mm]},
              
            base/.style = {rectangle, rounded corners, draw=black,
              
                           minimum width=1cm, minimum height=1cm,
              
                           text centered,inner sep=0.3cm},
              
  operation/.style = {base, fill=SkyBlue},
              
}
              

              
begin{document}    
              
begin{tikzpicture}[node distance=0.8cm,
              
    every node/.style={fill=white}, align=center]
              
    node (controller) [operation] {Microcontroller};
              
    node (regulator) [operation, below = of controller] {Regulator};
              
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
              
    node (sensor) [operation, above = of controller] {Sensor};
              
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
              
    node (driver1) [operation, right = of sensor] {Driver 1};
              
    node (driver2) [operation, left = of sensor] {Driver 2};
              
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
              
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
              
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
              
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
              
    coordinate[left = of power] (d1) {};
              
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
              

              
    draw[->]             (controller) -- (transceiver);
              
    draw[<->]             (controller) -- (sensor);
              
    draw[->]             (driver1) -- (motor1);
              
    draw[->]             (driver2) -- (motor2);
              
    draw[<->]             (sensor) -- (motor2);
              
    draw[<->]             (sensor) -- (motor1);
              
    draw[->]             (controller) -- (driver1);
              
    draw[->]             (controller) -- (driver2);
              
    draw[->]             (controller) -- (flash);
              
    draw[->]             (regulator) -- (controller);
              
    draw[->]             (power) -- (regulator);
              
    draw[<->]             (transceiver) -- (computer);
              
    draw[->]             (power) -- (d1) |- (motor2);
              
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
              

              
    begin{pgfonlayer}{background}
              
    path (driver1.east |- computer.north) ++ (0.2,0.2) coordinate(int1);
              
    path (driver2.south -| transceiver.west) ++ (-0.2,-0.2) coordinate(int2);
              

              
    fill[yellow!40] ($(driver2.south west)+(-0.2,-0.2)$) |- ($(motor2.north)+(0,0.2)$) -| (int1) -- (int2) -- cycle;
              
    fill[blue!30] ($(transceiver.south west)+(-0.2,-0.2)$) -- (int2) -- (int1) -- 
              
      ($(computer.north)+(0,0.2)$) -| ($(computer.east)+(0.2,0)$) |- cycle;
              
    fill[purple!15] ($(power.south west)+(-0.2,-0.2)$) |- ($(power.north)+(0,0.2)$) -| ($(regulator.east)+(0.2,0.2)$) |- cycle;
              
    end{pgfonlayer}
              
  end{tikzpicture}
              
end{document}





              share|improve this answer




























                2














                For arbitrary shapes (not nodes), one cannot use fitting.
                demo



                documentclass[border=10pt]{standalone}
                
usepackage[dvipsnames]{xcolor}
                
usepackage{tikz}
                
usetikzlibrary{arrows.meta,shapes, positioning, calc, backgrounds}
                

                
tikzset{%
                
  >={Latex[width=2mm,length=2mm]},
                
            base/.style = {rectangle, rounded corners, draw=black,
                
                           minimum width=1cm, minimum height=1cm,
                
                           text centered,inner sep=0.3cm},
                
  operation/.style = {base, fill=SkyBlue},
                
}
                

                
begin{document}    
                
begin{tikzpicture}[node distance=0.8cm,
                
    every node/.style={fill=white}, align=center]
                
    node (controller) [operation] {Microcontroller};
                
    node (regulator) [operation, below = of controller] {Regulator};
                
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
                
    node (sensor) [operation, above = of controller] {Sensor};
                
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
                
    node (driver1) [operation, right = of sensor] {Driver 1};
                
    node (driver2) [operation, left = of sensor] {Driver 2};
                
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
                
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
                
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
                
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
                
    coordinate[left = of power] (d1) {};
                
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
                

                
    draw[->]             (controller) -- (transceiver);
                
    draw[<->]             (controller) -- (sensor);
                
    draw[->]             (driver1) -- (motor1);
                
    draw[->]             (driver2) -- (motor2);
                
    draw[<->]             (sensor) -- (motor2);
                
    draw[<->]             (sensor) -- (motor1);
                
    draw[->]             (controller) -- (driver1);
                
    draw[->]             (controller) -- (driver2);
                
    draw[->]             (controller) -- (flash);
                
    draw[->]             (regulator) -- (controller);
                
    draw[->]             (power) -- (regulator);
                
    draw[<->]             (transceiver) -- (computer);
                
    draw[->]             (power) -- (d1) |- (motor2);
                
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
                

                
    begin{pgfonlayer}{background}
                
    path (driver1.east |- computer.north) ++ (0.2,0.2) coordinate(int1);
                
    path (driver2.south -| transceiver.west) ++ (-0.2,-0.2) coordinate(int2);
                

                
    fill[yellow!40] ($(driver2.south west)+(-0.2,-0.2)$) |- ($(motor2.north)+(0,0.2)$) -| (int1) -- (int2) -- cycle;
                
    fill[blue!30] ($(transceiver.south west)+(-0.2,-0.2)$) -- (int2) -- (int1) -- 
                
      ($(computer.north)+(0,0.2)$) -| ($(computer.east)+(0.2,0)$) |- cycle;
                
    fill[purple!15] ($(power.south west)+(-0.2,-0.2)$) |- ($(power.north)+(0,0.2)$) -| ($(regulator.east)+(0.2,0.2)$) |- cycle;
                
    end{pgfonlayer}
                
  end{tikzpicture}
                
end{document}





                share|improve this answer


























                  2












                  2








                  2







                  For arbitrary shapes (not nodes), one cannot use fitting.
                  demo



                  documentclass[border=10pt]{standalone}
                  
usepackage[dvipsnames]{xcolor}
                  
usepackage{tikz}
                  
usetikzlibrary{arrows.meta,shapes, positioning, calc, backgrounds}
                  

                  
tikzset{%
                  
  >={Latex[width=2mm,length=2mm]},
                  
            base/.style = {rectangle, rounded corners, draw=black,
                  
                           minimum width=1cm, minimum height=1cm,
                  
                           text centered,inner sep=0.3cm},
                  
  operation/.style = {base, fill=SkyBlue},
                  
}
                  

                  
begin{document}    
                  
begin{tikzpicture}[node distance=0.8cm,
                  
    every node/.style={fill=white}, align=center]
                  
    node (controller) [operation] {Microcontroller};
                  
    node (regulator) [operation, below = of controller] {Regulator};
                  
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
                  
    node (sensor) [operation, above = of controller] {Sensor};
                  
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
                  
    node (driver1) [operation, right = of sensor] {Driver 1};
                  
    node (driver2) [operation, left = of sensor] {Driver 2};
                  
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
                  
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
                  
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
                  
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
                  
    coordinate[left = of power] (d1) {};
                  
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
                  

                  
    draw[->]             (controller) -- (transceiver);
                  
    draw[<->]             (controller) -- (sensor);
                  
    draw[->]             (driver1) -- (motor1);
                  
    draw[->]             (driver2) -- (motor2);
                  
    draw[<->]             (sensor) -- (motor2);
                  
    draw[<->]             (sensor) -- (motor1);
                  
    draw[->]             (controller) -- (driver1);
                  
    draw[->]             (controller) -- (driver2);
                  
    draw[->]             (controller) -- (flash);
                  
    draw[->]             (regulator) -- (controller);
                  
    draw[->]             (power) -- (regulator);
                  
    draw[<->]             (transceiver) -- (computer);
                  
    draw[->]             (power) -- (d1) |- (motor2);
                  
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
                  

                  
    begin{pgfonlayer}{background}
                  
    path (driver1.east |- computer.north) ++ (0.2,0.2) coordinate(int1);
                  
    path (driver2.south -| transceiver.west) ++ (-0.2,-0.2) coordinate(int2);
                  

                  
    fill[yellow!40] ($(driver2.south west)+(-0.2,-0.2)$) |- ($(motor2.north)+(0,0.2)$) -| (int1) -- (int2) -- cycle;
                  
    fill[blue!30] ($(transceiver.south west)+(-0.2,-0.2)$) -- (int2) -- (int1) -- 
                  
      ($(computer.north)+(0,0.2)$) -| ($(computer.east)+(0.2,0)$) |- cycle;
                  
    fill[purple!15] ($(power.south west)+(-0.2,-0.2)$) |- ($(power.north)+(0,0.2)$) -| ($(regulator.east)+(0.2,0.2)$) |- cycle;
                  
    end{pgfonlayer}
                  
  end{tikzpicture}
                  
end{document}





                  share|improve this answer













                  For arbitrary shapes (not nodes), one cannot use fitting.
                  demo



                  documentclass[border=10pt]{standalone}
                  
usepackage[dvipsnames]{xcolor}
                  
usepackage{tikz}
                  
usetikzlibrary{arrows.meta,shapes, positioning, calc, backgrounds}
                  

                  
tikzset{%
                  
  >={Latex[width=2mm,length=2mm]},
                  
            base/.style = {rectangle, rounded corners, draw=black,
                  
                           minimum width=1cm, minimum height=1cm,
                  
                           text centered,inner sep=0.3cm},
                  
  operation/.style = {base, fill=SkyBlue},
                  
}
                  

                  
begin{document}    
                  
begin{tikzpicture}[node distance=0.8cm,
                  
    every node/.style={fill=white}, align=center]
                  
    node (controller) [operation] {Microcontroller};
                  
    node (regulator) [operation, below = of controller] {Regulator};
                  
    node (transceiver) [operation, right = of controller, align = center] {CAN \ Transceiver};
                  
    node (sensor) [operation, above = of controller] {Sensor};
                  
    node (flash) [operation, below = of transceiver, yshift=4mm] {Flash \ Memeory};
                  
    node (driver1) [operation, right = of sensor] {Driver 1};
                  
    node (driver2) [operation, left = of sensor] {Driver 2};
                  
    node (power) [operation, left = of regulator, align=center] {Input \ Power};
                  
    node (motor1) [operation, above = of sensor, align=center, xshift=1cm] {Motor 1};
                  
    node (motor2) [operation, above = of sensor, align=center, xshift=-1cm] {Motor 2};
                  
    node[circle,draw,fill=SkyBlue] (computer) [right = of driver1] {Computer};
                  
    coordinate[left = of power] (d1) {};
                  
    coordinate[above = of d1, yshift=5.5cm] (d2) {};
                  

                  
    draw[->]             (controller) -- (transceiver);
                  
    draw[<->]             (controller) -- (sensor);
                  
    draw[->]             (driver1) -- (motor1);
                  
    draw[->]             (driver2) -- (motor2);
                  
    draw[<->]             (sensor) -- (motor2);
                  
    draw[<->]             (sensor) -- (motor1);
                  
    draw[->]             (controller) -- (driver1);
                  
    draw[->]             (controller) -- (driver2);
                  
    draw[->]             (controller) -- (flash);
                  
    draw[->]             (regulator) -- (controller);
                  
    draw[->]             (power) -- (regulator);
                  
    draw[<->]             (transceiver) -- (computer);
                  
    draw[->]             (power) -- (d1) |- (motor2);
                  
    draw[->]             (power) -- (d1) --  (d2) -| (motor1);
                  

                  
    begin{pgfonlayer}{background}
                  
    path (driver1.east |- computer.north) ++ (0.2,0.2) coordinate(int1);
                  
    path (driver2.south -| transceiver.west) ++ (-0.2,-0.2) coordinate(int2);
                  

                  
    fill[yellow!40] ($(driver2.south west)+(-0.2,-0.2)$) |- ($(motor2.north)+(0,0.2)$) -| (int1) -- (int2) -- cycle;
                  
    fill[blue!30] ($(transceiver.south west)+(-0.2,-0.2)$) -- (int2) -- (int1) -- 
                  
      ($(computer.north)+(0,0.2)$) -| ($(computer.east)+(0.2,0)$) |- cycle;
                  
    fill[purple!15] ($(power.south west)+(-0.2,-0.2)$) |- ($(power.north)+(0,0.2)$) -| ($(regulator.east)+(0.2,0.2)$) |- cycle;
                  
    end{pgfonlayer}
                  
  end{tikzpicture}
                  
end{document}






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                  answered 10 hours ago









                  John KormyloJohn Kormylo

                  45.2k12570




                  45.2k12570






























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