54 lines
1.8 KiB
Plaintext
54 lines
1.8 KiB
Plaintext
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import bpy
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import mathutils
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def draw_plane(hessian):
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# Extract the plane coefficients from the Hessian form
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a, b, c, d = hessian
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# Calculate the normal vector of the plane
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normal = mathutils.Vector((a, b, c))
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# Calculate the point at the center of the plane
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point = normal * d
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# Calculate a vector perpendicular to the normal
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if abs(normal.z) < 1e-6:
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tangent = mathutils.Vector((0, 0, 1))
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else:
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tangent = mathutils.Vector((0, 1, -normal.y/normal.z)).normalized()
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binorm = tangent.cross(normal)
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# Create a new mesh object for the point, dot, and line
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mesh = bpy.data.meshes.new(name="Plane Center and Normal")
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obj = bpy.data.objects.new(name="Plane Object", object_data=mesh)
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# Create the vertices for the point, dot, and line
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vertices = [
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point + tangent * 0.1,
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point,
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point + normal,
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point + binorm * 0.1,
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]
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# Create the edges for the line
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edges = [
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(0, 1), # Edge from point to start of line
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(1, 2) , # Edge for the line
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(1, 3)
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]
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# Create the mesh data for the point, dot, and line
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mesh.from_pydata(vertices, edges, [])
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# Add the object to the scene
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bpy.context.scene.collection.objects.link(obj)
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planes = [(-0.96225, 0.192449, 0.192451, -4.04145), (-0.404079, 0.888975, 0.21551, -3.85222), (-0.703526, -0.502519, -0.502519, -2.31159), (-0.123091, -0.86164, 0.492366, -2.33874), (-0.211079, -0.492518, 0.844317, -3.02547), (0.442326, 0.147442, 0.884652, -2.50651), (0.928279, -0.206284, 0.309426, -1.13456), (0.973329, -0.162221, 0.162222, -1.29777), (0.117041, 0.702247, -0.702247, -3.04307), (-9.6656e-08, 1.35319e-07, -1, -2)]
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#planes = [(0, 0, -1, -12), (0, 1, 0, 9)]
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for p in planes:
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draw_plane(p)
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#draw_plane((0, 1, 0, 11))
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