Kernel rig: construction cases, an axis square to a flat face and to a cylinder through a point, and a point on the axis refused

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/kernel-cases/construction/cov-axis-normal-to-a-cylinder-refuses-a-point-on-its-axis/expected.json

@@ -0,0 +1,8 @@
+{
+ "sources": [],
+ "what": "an axis square to a cylinder's side through a point on the cylinder's axis",
+ "source": "analytic",
+ "method": "cylinder r 5, h 10 on (60,0,0) along +Z: every radial line passes through (60,0,5), so no one normal: refused",
+ "outcome": "refused",
+ "refusal": "the point is on the face's axis"
+}

tests/kernel-cases/construction/cov-axis-normal-to-a-cylinder-refuses-a-point-on-its-axis/recipe.json

@@ -0,0 +1,38 @@
+{
+ "commands": [
+  {
+   "command": "solid.cylinder",
+   "params": {
+    "base": [
+     60,
+     0,
+     0
+    ],
+    "radius": 5,
+    "height": 10,
+    "body_name": "Cyl",
+    "operation": "new"
+   }
+  },
+  {
+   "command": "construct.axis.normal_to_face",
+   "params": {
+    "face": {
+     "face": [
+      65,
+      0,
+      5
+     ]
+    },
+    "point": {
+     "point": [
+      60,
+      0,
+      5
+     ]
+    },
+    "name": "A"
+   }
+  }
+ ]
+}

tests/kernel-cases/construction/cov-axis-normal-to-a-cylinder-through-an-outside-point/expected.json

@@ -0,0 +1,22 @@
+{
+ "sources": [],
+ "what": "an axis square to a cylinder's side through a point outside it",
+ "source": "analytic",
+ "method": "cylinder r 5, h 10 on (60,0,0) along +Z: through (66,8,5), 10 from the axis along (0.6,0.8,0): the radial line through (60,0,5) along (3,4,0)",
+ "construction": {
+  "A": {
+   "axis": {
+    "through": [
+     60,
+     0,
+     5
+    ],
+    "dir": [
+     3,
+     4,
+     0
+    ]
+   }
+  }
+ }
+}

tests/kernel-cases/construction/cov-axis-normal-to-a-cylinder-through-an-outside-point/recipe.json

@@ -0,0 +1,38 @@
+{
+ "commands": [
+  {
+   "command": "solid.cylinder",
+   "params": {
+    "base": [
+     60,
+     0,
+     0
+    ],
+    "radius": 5,
+    "height": 10,
+    "body_name": "Cyl",
+    "operation": "new"
+   }
+  },
+  {
+   "command": "construct.axis.normal_to_face",
+   "params": {
+    "face": {
+     "face": [
+      65,
+      0,
+      5
+     ]
+    },
+    "point": {
+     "point": [
+      66,
+      8,
+      5
+     ]
+    },
+    "name": "A"
+   }
+  }
+ ]
+}

tests/kernel-cases/construction/cov-axis-normal-to-a-flat-face/expected.json

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+{
+ "sources": [],
+ "what": "an axis square to a box's top through a point above it",
+ "source": "analytic",
+ "method": "box 40 x 30 x 20 with a corner at the origin (x 0..40, y 0..30, z 0..20): the top is z = 20, normal Z; through (12,7,30) square to it: the line x 12, y 7 along Z",
+ "construction": {
+  "A": {
+   "axis": {
+    "through": [
+     12,
+     7,
+     20
+    ],
+    "dir": [
+     0,
+     0,
+     1
+    ]
+   }
+  }
+ }
+}

tests/kernel-cases/construction/cov-axis-normal-to-a-flat-face/recipe.json

@@ -0,0 +1,33 @@
+{
+ "commands": [
+  {
+   "command": "solid.box",
+   "params": {
+    "length": 40,
+    "width": 30,
+    "height": 20,
+    "body_name": "Box"
+   }
+  },
+  {
+   "command": "construct.axis.normal_to_face",
+   "params": {
+    "face": {
+     "face": [
+      10,
+      10,
+      20
+     ]
+    },
+    "point": {
+     "point": [
+      12,
+      7,
+      30
+     ]
+    },
+    "name": "A"
+   }
+  }
+ ]
+}