Statically transpile sketch and extrude in a pipeline, inside a function

[jtran]

#9278

This is a proof of concept of a different approach that doesn't require execution. In particular, this works on the angle-gauge sample, where the sketch is inside a function, never assigned to a variable.

The transpile binary learned a new option --static to call this new approach.

// Angle Gauge
// Simple angle gauge function to generate a gauge given an angle
// Categories: Construction

// Set units in inches (in)
@settings(defaultLengthUnit = in, experimentalFeatures = allow)

// Define parameters
cutoutEdgeLength = 2
cutoutWidth = 0.52
cutoutAngle = 10 // degrees
cutoutDepth = 1
cutoutBaseDepth = 0.5
totalWidth = 1.25
blockEdgeLength = 0.5
flip = 0

fn gauge(cutoutAngle, N, startX, startY, deltaX, deltaY) {
  sketch1 = sketch(on = XY) {
    line1 = line(start = [var 0, var 0], end = [var 1, var 0])
    horizontal(line1)
    distance([line1.start, line1.end]) == cutoutDepth + cutoutBaseDepth
    point1 = point(at = [
      blockEdgeLength + startX + deltaX * N,
      startY + deltaY * N
    ])
    coincident([point1, line1.start])
    line2 = line(start = [var 0, var 0], end = [var 0, var 1])
    vertical(line2)
    distance([line2.start, line2.end]) == (totalWidth - cutoutWidth) / 2 - ((1 - flip) * cutoutDepth * sin(units::toRadians(cutoutAngle)))
    coincident([line1.end, line2.start])
    line3 = line(start = [var 0, var 0], end = [var 1, var 0])
    angle([line2, line3]) == 180 - ((1 - flip) * cutoutAngle)
    horizontalDistance([line3.start, line3.end]) == cutoutDepth
    coincident([line2.end, line3.start])
    line4 = line(start = [var 0, var 0], end = [var 0, var 1])
    vertical(line4)
    distance([line4.start, line4.end]) == cutoutWidth
    coincident([line3.end, line4.start])
    line5 = line(start = [var 0, var 0], end = [var 1, var 0])
    angle([line4, line5]) == flip * cutoutAngle
    horizontalDistance([line5.start, line5.end]) == cutoutDepth
    coincident([line4.end, line5.start])
    line6 = line(start = [var 0, var 0], end = [var 0, var 1])
    vertical(line6)
    coincident([line5.end, line6.start])
    line7 = line(start = [var 0, var 0], end = [var 1, var 0])
    horizontal(line7)
    distance([line7.start, line7.end]) == -1 * (cutoutDepth + cutoutBaseDepth)
    coincident([line6.end, line7.start])
    coincident([line7.end, line1.start])
  }
  region1 = region(segments = [sketch1.line1, sketch1.line2])
  gaugeSketch = extrude(region1, length = 0.05)
  return gaugeSketch
}

startX = 0
startY = 0
xSpacing = 2
angleSpacing = 5
gauge(
  cutoutAngle = 8,
  N = 0,
  startX = startX,
  startY = startY,
  deltaX = xSpacing,
  deltaY = 0,
)
gauge(
  cutoutAngle = 14,
  N = 1,
  startX = startX,
  startY = startY,
  deltaX = xSpacing,
  deltaY = 0,
)
gauge(
  cutoutAngle = 15,
  N = 2,
  startX = startX,
  startY = startY,
  deltaX = xSpacing,
  deltaY = 0,
)

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Project	Deployment	Actions	Updated (UTC)
modeling-app	Ready	Preview, Comment	Mar 13, 2026 7:10pm

[codspeed-hq]

Merging this PR will not alter performance

✅ 167 untouched benchmarks
⏩ 93 skipped benchmarks¹

---

_{Comparing jtran/static-transpile (0f4a8f5) with main (517b27c)}

Footnotes

1. 93 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩