Add plate-capacitor.typ to gallery

[janosh]

another gallery example following #783. this one comes with a question. what's the best way to get a rectangle with rounded corners and split in half with different fill colors. i tried beziers first but then opted for two rectangles but couldn't figure out how to get the rounded corners.

current

desired (see tikz code)

final

[johannes-wolf]

Hi, thank you!

You can draw two rects side by side, each having rounded corners on the opposing side:

#cetz.canvas({
  import cetz.draw: *

  let pill(a, b, stroke: black, left-fill: blue, right-fill: red) = group({
    anchor("a", a)
    anchor("b", b)
    
    rect("a", (("a", "|-", "b"), 50%, "b"), fill: left-fill, stroke: stroke, radius: (west: .5, rest: 0))
    rect((("a", "-|", "b"), 50%, "a"), "b", fill: right-fill, stroke: stroke, radius: (east: .5, rest: 0))
  })

  pill((0,0), (4,2))
  pill((2,3), (rel: (3,1)))
})

Gives:

[janosh]

@johannes-wolf thanks! looks great. this should be ready to go

[johannes-wolf]

Thank you!