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


How can I invert a 'clip' selection within TikZ?Tikz clip shapes with another (built in) shapeTikz clip shapes with another (built in) shapeFill Nodes according to table/data fileHow to define the default vertical distance between nodes?Rotate Tikzpicture including nodesInput/Output Nodes - Specification and Description Languageuse circuitikz picture inside tikzpictureBackground clip to text TikzRelative transparency in TikZ?Rectanglar cloud shaped node in TikZIdeal shape of elliptical nodes













5















The following WE



documentclass[border=10pt]standalone
usepackage[dvipsnames]xcolor
usepackagetikz
usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds

tikzstylebackA=[rectangle,
fill=blue!30,
inner sep=0.2cm,
rounded corners=0mm]

tikzstylebackB=[rectangle,
fill=purple!15,
inner sep=0.2cm,
rounded corners=0mm]

tikzstylebackC=[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,


begindocument 
begintikzpicture[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);

 beginpgfonlayerbackground
 node [backC,
 fit=(driver1) (driver2) (sensor) (motor1) (motor2),
 label=above:] ;

 node [backA,
 fit=(computer) (transceiver),
 label=above:] ;

 node [backB,
 fit=(regulator) (power),
 label=above:] ;
 endpgfonlayer
 endtikzpicture
enddocument


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
    6 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
    6 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
    6 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
    6 hours ago
















5















The following WE



documentclass[border=10pt]standalone
usepackage[dvipsnames]xcolor
usepackagetikz
usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds

tikzstylebackA=[rectangle,
fill=blue!30,
inner sep=0.2cm,
rounded corners=0mm]

tikzstylebackB=[rectangle,
fill=purple!15,
inner sep=0.2cm,
rounded corners=0mm]

tikzstylebackC=[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,


begindocument 
begintikzpicture[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);

 beginpgfonlayerbackground
 node [backC,
 fit=(driver1) (driver2) (sensor) (motor1) (motor2),
 label=above:] ;

 node [backA,
 fit=(computer) (transceiver),
 label=above:] ;

 node [backB,
 fit=(regulator) (power),
 label=above:] ;
 endpgfonlayer
 endtikzpicture
enddocument


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
    6 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
    6 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
    6 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
    6 hours ago














5












5








5


1






The following WE



documentclass[border=10pt]standalone
usepackage[dvipsnames]xcolor
usepackagetikz
usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds

tikzstylebackA=[rectangle,
fill=blue!30,
inner sep=0.2cm,
rounded corners=0mm]

tikzstylebackB=[rectangle,
fill=purple!15,
inner sep=0.2cm,
rounded corners=0mm]

tikzstylebackC=[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,


begindocument 
begintikzpicture[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);

 beginpgfonlayerbackground
 node [backC,
 fit=(driver1) (driver2) (sensor) (motor1) (motor2),
 label=above:] ;

 node [backA,
 fit=(computer) (transceiver),
 label=above:] ;

 node [backB,
 fit=(regulator) (power),
 label=above:] ;
 endpgfonlayer
 endtikzpicture
enddocument


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
usepackagetikz
usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds

tikzstylebackA=[rectangle,
fill=blue!30,
inner sep=0.2cm,
rounded corners=0mm]

tikzstylebackB=[rectangle,
fill=purple!15,
inner sep=0.2cm,
rounded corners=0mm]

tikzstylebackC=[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,


begindocument 
begintikzpicture[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);

 beginpgfonlayerbackground
 node [backC,
 fit=(driver1) (driver2) (sensor) (motor1) (motor2),
 label=above:] ;

 node [backA,
 fit=(computer) (transceiver),
 label=above:] ;

 node [backB,
 fit=(regulator) (power),
 label=above:] ;
 endpgfonlayer
 endtikzpicture
enddocument


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 7 hours ago









RoboticistRoboticist

1,69121231




1,69121231












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

    – Raaja
    6 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
    6 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
    6 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
    6 hours ago


















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

    – Raaja
    6 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
    6 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
    6 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
    6 hours ago

















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

– Raaja
6 hours ago





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

– Raaja
6 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
6 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
6 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
6 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
6 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
6 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
6 hours ago











3 Answers
3






active

oldest

votes


















5














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
usepackagetikz
usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds

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

tikzsetbackA/.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,


begindocument 
begintikzpicture[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);

 beginpgfonlayerbackground
 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:] ;
 endpgfonlayer
 endtikzpicture
enddocument


enter image description here






share|improve this answer






























    3














    Like this?



    screenshot



    documentclass[border=10pt]standalone
    usepackage[dvipsnames]xcolor
    usepackagetikz
    usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds
    pgfdeclarelayerbackground
    pgfdeclarelayermiddle
    pgfdeclarelayerforeground
    pgfsetlayersbackground,main,middle,foreground
    tikzstylebackA=[rectangle,
    fill=blue!30,
    inner sep=0.2cm,
    rounded corners=0mm]

    tikzstylebackB=[rectangle,
    fill=purple!15,
    inner sep=0.2cm,
    rounded corners=0mm]

    tikzstylebackC=[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,


    begindocument 
    begintikzpicture[node distance=0.8cm,
     every node/.style=fill=white, align=center]
     beginpgfonlayerforeground
     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);
    endpgfonlayer
     beginpgfonlayermiddle
     node [backC,
     fit=(driver1) (driver2) (sensor) (motor1) (motor2),
     label=above:] ;
    endpgfonlayer
     beginpgfonlayermain
     node [fill=white,inner sep=3mm,
     fit=(driver1) (driver2) (sensor) (motor1) (motor2),
     label=above:] ;
    endpgfonlayer
    beginpgfonlayerbackground
     node [backA,
     fit=(computer) (transceiver),
     label=above:] ;
    endpgfonlayer
     node [backB,
     fit=(regulator) (power),
     label=above:] ;
     endtikzpicture
    enddocument





    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
      6 hours ago












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

      – AndréC
      5 hours ago



















    2














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



    documentclass[border=10pt]standalone
    usepackage[dvipsnames]xcolor
    usepackagetikz
    usetikzlibraryarrows.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,


    begindocument 
    begintikzpicture[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);

     beginpgfonlayerbackground
     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;
     endpgfonlayer
     endtikzpicture
    enddocument





    share|improve this answer






















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      3 Answers
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      3 Answers
      3






      active

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      active

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      5














      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
      usepackagetikz
      usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds

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

      tikzsetbackA/.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,


      begindocument 
      begintikzpicture[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);

       beginpgfonlayerbackground
       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:] ;
       endpgfonlayer
       endtikzpicture
      enddocument


      enter image description here






      share|improve this answer



























        5














        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
        usepackagetikz
        usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds

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

        tikzsetbackA/.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,


        begindocument 
        begintikzpicture[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);

         beginpgfonlayerbackground
         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:] ;
         endpgfonlayer
         endtikzpicture
        enddocument


        enter image description here






        share|improve this answer

























          5












          5








          5







          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
          usepackagetikz
          usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds

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

          tikzsetbackA/.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,


          begindocument 
          begintikzpicture[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);

           beginpgfonlayerbackground
           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:] ;
           endpgfonlayer
           endtikzpicture
          enddocument


          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
          usepackagetikz
          usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds

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

          tikzsetbackA/.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,


          begindocument 
          begintikzpicture[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);

           beginpgfonlayerbackground
           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:] ;
           endpgfonlayer
           endtikzpicture
          enddocument


          enter image description here







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 5 hours ago









          marmotmarmot

          108k5131247




          108k5131247





















              3














              Like this?



              screenshot



              documentclass[border=10pt]standalone
              usepackage[dvipsnames]xcolor
              usepackagetikz
              usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds
              pgfdeclarelayerbackground
              pgfdeclarelayermiddle
              pgfdeclarelayerforeground
              pgfsetlayersbackground,main,middle,foreground
              tikzstylebackA=[rectangle,
              fill=blue!30,
              inner sep=0.2cm,
              rounded corners=0mm]

              tikzstylebackB=[rectangle,
              fill=purple!15,
              inner sep=0.2cm,
              rounded corners=0mm]

              tikzstylebackC=[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,


              begindocument 
              begintikzpicture[node distance=0.8cm,
               every node/.style=fill=white, align=center]
               beginpgfonlayerforeground
               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);
              endpgfonlayer
               beginpgfonlayermiddle
               node [backC,
               fit=(driver1) (driver2) (sensor) (motor1) (motor2),
               label=above:] ;
              endpgfonlayer
               beginpgfonlayermain
               node [fill=white,inner sep=3mm,
               fit=(driver1) (driver2) (sensor) (motor1) (motor2),
               label=above:] ;
              endpgfonlayer
              beginpgfonlayerbackground
               node [backA,
               fit=(computer) (transceiver),
               label=above:] ;
              endpgfonlayer
               node [backB,
               fit=(regulator) (power),
               label=above:] ;
               endtikzpicture
              enddocument





              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
                6 hours ago












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

                – AndréC
                5 hours ago
















              3














              Like this?



              screenshot



              documentclass[border=10pt]standalone
              usepackage[dvipsnames]xcolor
              usepackagetikz
              usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds
              pgfdeclarelayerbackground
              pgfdeclarelayermiddle
              pgfdeclarelayerforeground
              pgfsetlayersbackground,main,middle,foreground
              tikzstylebackA=[rectangle,
              fill=blue!30,
              inner sep=0.2cm,
              rounded corners=0mm]

              tikzstylebackB=[rectangle,
              fill=purple!15,
              inner sep=0.2cm,
              rounded corners=0mm]

              tikzstylebackC=[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,


              begindocument 
              begintikzpicture[node distance=0.8cm,
               every node/.style=fill=white, align=center]
               beginpgfonlayerforeground
               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);
              endpgfonlayer
               beginpgfonlayermiddle
               node [backC,
               fit=(driver1) (driver2) (sensor) (motor1) (motor2),
               label=above:] ;
              endpgfonlayer
               beginpgfonlayermain
               node [fill=white,inner sep=3mm,
               fit=(driver1) (driver2) (sensor) (motor1) (motor2),
               label=above:] ;
              endpgfonlayer
              beginpgfonlayerbackground
               node [backA,
               fit=(computer) (transceiver),
               label=above:] ;
              endpgfonlayer
               node [backB,
               fit=(regulator) (power),
               label=above:] ;
               endtikzpicture
              enddocument





              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
                6 hours ago












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

                – AndréC
                5 hours ago














              3












              3








              3







              Like this?



              screenshot



              documentclass[border=10pt]standalone
              usepackage[dvipsnames]xcolor
              usepackagetikz
              usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds
              pgfdeclarelayerbackground
              pgfdeclarelayermiddle
              pgfdeclarelayerforeground
              pgfsetlayersbackground,main,middle,foreground
              tikzstylebackA=[rectangle,
              fill=blue!30,
              inner sep=0.2cm,
              rounded corners=0mm]

              tikzstylebackB=[rectangle,
              fill=purple!15,
              inner sep=0.2cm,
              rounded corners=0mm]

              tikzstylebackC=[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,


              begindocument 
              begintikzpicture[node distance=0.8cm,
               every node/.style=fill=white, align=center]
               beginpgfonlayerforeground
               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);
              endpgfonlayer
               beginpgfonlayermiddle
               node [backC,
               fit=(driver1) (driver2) (sensor) (motor1) (motor2),
               label=above:] ;
              endpgfonlayer
               beginpgfonlayermain
               node [fill=white,inner sep=3mm,
               fit=(driver1) (driver2) (sensor) (motor1) (motor2),
               label=above:] ;
              endpgfonlayer
              beginpgfonlayerbackground
               node [backA,
               fit=(computer) (transceiver),
               label=above:] ;
              endpgfonlayer
               node [backB,
               fit=(regulator) (power),
               label=above:] ;
               endtikzpicture
              enddocument





              share|improve this answer















              Like this?



              screenshot



              documentclass[border=10pt]standalone
              usepackage[dvipsnames]xcolor
              usepackagetikz
              usetikzlibraryarrows.meta,shapes, positioning, fit, backgrounds
              pgfdeclarelayerbackground
              pgfdeclarelayermiddle
              pgfdeclarelayerforeground
              pgfsetlayersbackground,main,middle,foreground
              tikzstylebackA=[rectangle,
              fill=blue!30,
              inner sep=0.2cm,
              rounded corners=0mm]

              tikzstylebackB=[rectangle,
              fill=purple!15,
              inner sep=0.2cm,
              rounded corners=0mm]

              tikzstylebackC=[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,


              begindocument 
              begintikzpicture[node distance=0.8cm,
               every node/.style=fill=white, align=center]
               beginpgfonlayerforeground
               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);
              endpgfonlayer
               beginpgfonlayermiddle
               node [backC,
               fit=(driver1) (driver2) (sensor) (motor1) (motor2),
               label=above:] ;
              endpgfonlayer
               beginpgfonlayermain
               node [fill=white,inner sep=3mm,
               fit=(driver1) (driver2) (sensor) (motor1) (motor2),
               label=above:] ;
              endpgfonlayer
              beginpgfonlayerbackground
               node [backA,
               fit=(computer) (transceiver),
               label=above:] ;
              endpgfonlayer
               node [backB,
               fit=(regulator) (power),
               label=above:] ;
               endtikzpicture
              enddocument






              share|improve this answer














              share|improve this answer



              share|improve this answer








              edited 5 hours ago

























              answered 6 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
                6 hours ago












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

                – AndréC
                5 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
                6 hours ago












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

                – AndréC
                5 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
              6 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
              6 hours ago














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

              – AndréC
              5 hours ago






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

              – AndréC
              5 hours ago












              2














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



              documentclass[border=10pt]standalone
              usepackage[dvipsnames]xcolor
              usepackagetikz
              usetikzlibraryarrows.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,


              begindocument 
              begintikzpicture[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);

               beginpgfonlayerbackground
               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;
               endpgfonlayer
               endtikzpicture
              enddocument





              share|improve this answer



























                2














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



                documentclass[border=10pt]standalone
                usepackage[dvipsnames]xcolor
                usepackagetikz
                usetikzlibraryarrows.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,


                begindocument 
                begintikzpicture[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);

                 beginpgfonlayerbackground
                 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;
                 endpgfonlayer
                 endtikzpicture
                enddocument





                share|improve this answer

























                  2












                  2








                  2







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



                  documentclass[border=10pt]standalone
                  usepackage[dvipsnames]xcolor
                  usepackagetikz
                  usetikzlibraryarrows.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,


                  begindocument 
                  begintikzpicture[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);

                   beginpgfonlayerbackground
                   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;
                   endpgfonlayer
                   endtikzpicture
                  enddocument





                  share|improve this answer













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



                  documentclass[border=10pt]standalone
                  usepackage[dvipsnames]xcolor
                  usepackagetikz
                  usetikzlibraryarrows.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,


                  begindocument 
                  begintikzpicture[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);

                   beginpgfonlayerbackground
                   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;
                   endpgfonlayer
                   endtikzpicture
                  enddocument






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 5 hours ago









                  John KormyloJohn Kormylo

                  45.2k12570




                  45.2k12570



























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