I would like to make an simple angle label such as this:
using the python script to construct it.
The problem is trying to spin a MeshVertex, as the code looks for a Mesh object instead when using the bpy.ops.mesh.spin function.
The best method I have found to do this is to subdivide a small cylinder (vector) to get vertices, then select a vertice along the cylinder, then to spin it around the origin with some theta.
Here is the code I have so far, which does not work:
import bpy import math import os import unicodedata import bmesh from bmesh.ops import spin pi = math.pi def lathe_geometry(bm, cent, axis, dvec, angle, steps, remove_doubles=True, dist=0.0001): geom = bm.verts[:] + bm.edges[:] # super verbose explanation. spin( bm, geom=geom, # geometry to use for the spin cent=cent, # center point of the spin world axis=axis, # axis, a (x, y, z) spin axis dvec=dvec, # offset for the center point angle=angle, # how much of the unit circle to rotate around steps=steps, # spin subdivision level use_duplicate=0) # include existing geometry in returned content if remove_doubles: bmesh.ops.remove_doubles(bm, verts=bm.verts[:], dist=dist) theta = pi/4 bpy.ops.mesh.primitive_cylinder_add( \ radius=0.01, \ depth = 5, view_align=False, \ location = (0,5,0), \ rotation = (pi/2, pi/2, pi/2+theta)) c1 = bpy.context.scene.objects.active = bpy.data.objects['Cylinder'] c1.select = True bpy.ops.object.mode_set(mode='EDIT', toggle=False) bpy.ops.mesh.subdivide(number_cuts=10) bpy.ops.object.mode_set(mode='OBJECT', toggle=False) c1.select = False for el in c1.data.vertices: el.select = False vert = c1.data.vertices[3] vert.select = True bm = bmesh.new() bm.from_mesh(c1.data) axis = (1,0,0) dvec = (0,0,0) angle = 2*math.pi steps = 20 cent = c1.location lathe_geometry(bm, cent, axis, dvec, angle, steps, remove_doubles=True, dist=0.0001) bm.to_mesh(c1.data) bm.free() 
