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Allow transform patterns to return multiple transforms (#4531)

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* Support multiple transforms in patterns
* New examples in docs
* Refactor: move large block into its own function
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Adam Chalmers
2024-11-21 08:49:54 -06:00
committed by GitHub
parent 59e0df7879
commit fcb0a6d9ca
13 changed files with 1642 additions and 24 deletions
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21
docs/kcl/patternTransform.md
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3
docs/kcl/std.json
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@ -123905,7 +123905,8 @@
"// Each instance will be shifted along the X axis,\n// with a gap between the original (at x = 0) and the first replica\n// (at x = 8). This is because `id` starts at 1.\nfn transform = (id) => {\n return { translate: [4 * (1 + id), 0, 0] }\n}\n\nsketch001 = startSketchOn('XZ')\n |> circle({ center: [0, 0], radius: 2 }, %)\n |> extrude(5, %)\n |> patternTransform(4, transform, %)",
"fn cube = (length, center) => {\n l = length / 2\n x = center[0]\n y = center[1]\n p0 = [-l + x, -l + y]\n p1 = [-l + x, l + y]\n p2 = [l + x, l + y]\n p3 = [l + x, -l + y]\n\n return startSketchAt(p0)\n |> lineTo(p1, %)\n |> lineTo(p2, %)\n |> lineTo(p3, %)\n |> lineTo(p0, %)\n |> close(%)\n |> extrude(length, %)\n}\n\nwidth = 20\nfn transform = (i) => {\n return {\n // Move down each time.\n translate: [0, 0, -i * width],\n // Make the cube longer, wider and flatter each time.\n scale: [pow(1.1, i), pow(1.1, i), pow(0.9, i)],\n // Turn by 15 degrees each time.\n rotation: { angle: 15 * i, origin: \"local\" }\n }\n}\n\nmyCubes = cube(width, [100, 0])\n |> patternTransform(25, transform, %)",
"fn cube = (length, center) => {\n l = length / 2\n x = center[0]\n y = center[1]\n p0 = [-l + x, -l + y]\n p1 = [-l + x, l + y]\n p2 = [l + x, l + y]\n p3 = [l + x, -l + y]\n\n return startSketchAt(p0)\n |> lineTo(p1, %)\n |> lineTo(p2, %)\n |> lineTo(p3, %)\n |> lineTo(p0, %)\n |> close(%)\n |> extrude(length, %)\n}\n\nwidth = 20\nfn transform = (i) => {\n return {\n translate: [0, 0, -i * width],\n rotation: {\n angle: 90 * i,\n // Rotate around the overall scene's origin.\n origin: \"global\"\n }\n }\n}\nmyCubes = cube(width, [100, 100])\n |> patternTransform(4, transform, %)",
"// Parameters\nr = 50 // base radius\nh = 10 // layer height\nt = 0.005 // taper factor [0-1)\n// Defines how to modify each layer of the vase.\n// Each replica is shifted up the Z axis, and has a smoothly-varying radius\nfn transform = (replicaId) => {\n scale = r * abs(1 - (t * replicaId)) * (5 + cos(replicaId / 8))\n return {\n translate: [0, 0, replicaId * 10],\n scale: [scale, scale, 0]\n }\n}\n// Each layer is just a pretty thin cylinder.\nfn layer = () => {\n return startSketchOn(\"XY\")\n // or some other plane idk\n |> circle({ center: [0, 0], radius: 1 }, %, $tag1)\n |> extrude(h, %)\n}\n// The vase is 100 layers tall.\n// The 100 layers are replica of each other, with a slight transformation applied to each.\nvase = layer()\n |> patternTransform(100, transform, %)"
"// Parameters\nr = 50 // base radius\nh = 10 // layer height\nt = 0.005 // taper factor [0-1)\n// Defines how to modify each layer of the vase.\n// Each replica is shifted up the Z axis, and has a smoothly-varying radius\nfn transform = (replicaId) => {\n scale = r * abs(1 - (t * replicaId)) * (5 + cos(replicaId / 8))\n return {\n translate: [0, 0, replicaId * 10],\n scale: [scale, scale, 0]\n }\n}\n// Each layer is just a pretty thin cylinder.\nfn layer = () => {\n return startSketchOn(\"XY\")\n // or some other plane idk\n |> circle({ center: [0, 0], radius: 1 }, %, $tag1)\n |> extrude(h, %)\n}\n// The vase is 100 layers tall.\n// The 100 layers are replica of each other, with a slight transformation applied to each.\nvase = layer()\n |> patternTransform(100, transform, %)",
"fn transform = (i) => {\n // Transform functions can return multiple transforms. They'll be applied in order.\n return [\n { translate: [30 * i, 0, 0] },\n { rotation: { angle: 45 * i } }\n ]\n}\nstartSketchAt([0, 0])\n |> polygon({\n radius: 10,\n numSides: 4,\n center: [0, 0],\n inscribed: false\n }, %)\n |> extrude(4, %)\n |> patternTransform(3, transform, %)"
]
},
{