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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?










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?










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?










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






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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