Fix helix sweep, you can make springs! (#5089)

* fix dumb mistake

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* updates for springs!

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* update docs

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* update known issues

Signed-off-by: Jess Frazelle <github@jessfraz.com>

---------

Signed-off-by: Jess Frazelle <github@jessfraz.com>

docs/kcl/KNOWN-ISSUES.md

@@ -24,5 +24,3 @@ once fixed in engine will just start working here with no language changes.
     chamfer cases work currently.
 
 - **Appearance**: Changing the appearance on a loft does not work.
-
-- **Helix**: Currently sweeping a helix does not work.

docs/kcl/std.json

@@ -76961,9 +76961,9 @@
     "unpublished": false,
     "deprecated": false,
     "examples": [
-      "// Create a helix around the Z axis.\nhelixPath = helix({\n  angleStart = 0,\n  ccw = true,\n  revolutions = 16,\n  length = 10,\n  radius = 5,\n  axis = 'Z'\n})\n\n// Create a spring by sweeping around the helix path.\nspringSketch = startSketchOn('YZ')\n  |> circle({ center = [0, 0], radius = 1 }, %)\n// |> sweep({ path = helixPath }, %)",
-      "// Create a helix around an edge.\nhelper001 = startSketchOn('XZ')\n  |> startProfileAt([0, 0], %)\n  |> line([0, 10], %, $edge001)\n\nhelixPath = helix({\n  angleStart = 0,\n  ccw = true,\n  revolutions = 16,\n  length = 10,\n  radius = 5,\n  axis = edge001\n})\n\n// Create a spring by sweeping around the helix path.\nspringSketch = startSketchOn('XY')\n  |> circle({ center = [0, 0], radius = 1 }, %)\n// |> sweep({ path = helixPath }, %)",
-      "// Create a helix around a custom axis.\nhelixPath = helix({\n  angleStart = 0,\n  ccw = true,\n  revolutions = 16,\n  length = 10,\n  radius = 5,\n  axis = {\n    custom = {\n      axis = [0, 0, 1.0],\n      origin = [0, 0.25, 0]\n    }\n  }\n})\n\n// Create a spring by sweeping around the helix path.\nspringSketch = startSketchOn('XY')\n  |> circle({ center = [0, 0], radius = 1 }, %)\n// |> sweep({ path = helixPath }, %)"
+      "// Create a helix around the Z axis.\nhelixPath = helix({\n  angleStart = 0,\n  ccw = true,\n  revolutions = 5,\n  length = 10,\n  radius = 5,\n  axis = 'Z'\n})\n\n// Create a spring by sweeping around the helix path.\nspringSketch = startSketchOn('YZ')\n  |> circle({ center = [0, 0], radius = 0.5 }, %)\n  |> sweep({ path = helixPath }, %)",
+      "// Create a helix around an edge.\nhelper001 = startSketchOn('XZ')\n  |> startProfileAt([0, 0], %)\n  |> line([0, 10], %, $edge001)\n\nhelixPath = helix({\n  angleStart = 0,\n  ccw = true,\n  revolutions = 5,\n  length = 10,\n  radius = 5,\n  axis = edge001\n})\n\n// Create a spring by sweeping around the helix path.\nspringSketch = startSketchOn('XY')\n  |> circle({ center = [0, 0], radius = 0.5 }, %)\n  |> sweep({ path = helixPath }, %)",
+      "// Create a helix around a custom axis.\nhelixPath = helix({\n  angleStart = 0,\n  ccw = true,\n  revolutions = 5,\n  length = 10,\n  radius = 5,\n  axis = {\n    custom = {\n      axis = [0, 0, 1.0],\n      origin = [0, 0.25, 0]\n    }\n  }\n})\n\n// Create a spring by sweeping around the helix path.\nspringSketch = startSketchOn('XY')\n  |> circle({ center = [0, 0], radius = 1 }, %)\n  |> sweep({ path = helixPath }, %)"
     ]
   },
   {
@@ -193684,7 +193684,7 @@
     "deprecated": false,
     "examples": [
       "// Create a pipe using a sweep.\n\n\n// Create a path for the sweep.\nsweepPath = startSketchOn('XZ')\n  |> startProfileAt([0.05, 0.05], %)\n  |> line([0, 7], %)\n  |> tangentialArc({ offset = 90, radius = 5 }, %)\n  |> line([-3, 0], %)\n  |> tangentialArc({ offset = -90, radius = 5 }, %)\n  |> line([0, 7], %)\n\n// Create a hole for the pipe.\npipeHole = startSketchOn('XY')\n  |> circle({ center = [0, 0], radius = 1.5 }, %)\n\nsweepSketch = startSketchOn('XY')\n  |> circle({ center = [0, 0], radius = 2 }, %)\n  |> hole(pipeHole, %)\n  |> sweep({ path = sweepPath }, %)",
-      "// Create a spring by sweeping around a helix path.\n\n\n// Create a helix around the Z axis.\nhelixPath = helix({\n  angleStart = 0,\n  ccw = true,\n  revolutions = 16,\n  length = 10,\n  radius = 5,\n  axis = 'Z'\n})\n\n// Create a spring by sweeping around the helix path.\nspringSketch = startSketchOn('YZ')\n  |> circle({ center = [0, 0], radius = 1 }, %)\n// |> sweep({ path = helixPath }, %)"
+      "// Create a spring by sweeping around a helix path.\n\n\n// Create a helix around the Z axis.\nhelixPath = helix({\n  angleStart = 0,\n  ccw = true,\n  revolutions = 4,\n  length = 10,\n  radius = 5,\n  axis = 'Z'\n})\n\n// Create a spring by sweeping around the helix path.\nspringSketch = startSketchOn('YZ')\n  |> circle({ center = [0, 0], radius = 1 }, %)\n  |> sweep({ path = helixPath }, %)"
     ]
   },
   {