Added research data, testing blender mesh generation

src_research_readme/blender_2.43_scripts/bpymodules/BPyAddMesh.py

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+import Blender
+from Blender.Window import EditMode, GetCursorPos, GetViewQuat
+import bpy
+import BPyMessages
+
+def add_mesh_simple(name, verts, edges, faces):
+	'''
+	Adds a mesh from verts, edges and faces
+	
+	name  - new object/mesh name
+	verts - list of 3d vectors
+	edges - list of int pairs
+	faces - list of int triplets/quads
+	'''
+	
+	scn = bpy.data.scenes.active
+	if scn.lib: return
+	ob_act = scn.objects.active
+
+	is_editmode = EditMode()
+
+	cursor = GetCursorPos()
+	quat = None
+	if is_editmode or Blender.Get('add_view_align'): # Aligning seems odd for editmode, but blender does it, oh well
+		try:	quat = Blender.Mathutils.Quaternion(GetViewQuat())
+		except:	pass
+	
+	# Exist editmode for non mesh types
+	if ob_act and ob_act.type != 'Mesh' and is_editmode:
+		EditMode(0)
+	
+	# We are in mesh editmode
+	if EditMode():
+		me = ob_act.getData(mesh=1)
+		
+		if me.multires:
+			BPyMessages.Error_NoMeshMultiresEdit()
+			return
+		
+		# Add to existing mesh
+		# must exit editmode to modify mesh
+		EditMode(0)
+		
+		me.sel = False
+		
+		vert_offset = len(me.verts)
+		edge_offset = len(me.edges)
+		face_offset = len(me.faces)
+		
+		# transform the verts
+		txmat = Blender.Mathutils.TranslationMatrix(Blender.Mathutils.Vector(cursor))
+		if quat:
+			mat = quat.toMatrix()
+			mat.invert()
+			mat.resize4x4()
+			txmat = mat * txmat
+		
+		txmat = txmat * ob_act.matrixWorld.copy().invert()
+		
+		
+		me.verts.extend(verts)
+		# Transform the verts by the cursor and view rotation
+		me.transform(txmat, selected_only=True)
+		
+		if vert_offset:
+			me.edges.extend([[i+vert_offset for i in e] for e in edges])
+			me.faces.extend([[i+vert_offset for i in f] for f in faces])
+		else:
+			# Mesh with no data, unlikely
+			me.edges.extend(edges)
+			me.faces.extend(faces)		
+	else:
+		
+		# Object mode add new
+		
+		me = bpy.data.meshes.new(name)
+		me.verts.extend(verts)
+		me.edges.extend(edges)
+		me.faces.extend(faces)
+		me.sel = True
+		
+		# Object creation and location
+		scn.objects.selected = []
+		ob_act = scn.objects.new(me, name)
+		scn.objects.active = ob_act
+		
+		if quat:
+			mat = quat.toMatrix()
+			mat.invert()
+			mat.resize4x4()
+			ob_act.setMatrix(mat)
+		
+		ob_act.loc = cursor
+	
+	me.calcNormals()
+	
+	if is_editmode or Blender.Get('add_editmode'):
+		EditMode(1)
+		
+		
+			
+
+
+def write_mesh_script(filepath, me):
+	'''
+	filepath - path to py file
+	me - mesh to write
+	'''
+	
+	name = me.name
+	file = open(filepath, 'w')
+	
+	file.write('#!BPY\n')
+	file.write('"""\n')
+	file.write('Name: \'%s\'\n' % name)
+	file.write('Blender: 245\n')
+	file.write('Group: \'AddMesh\'\n')
+	file.write('"""\n\n')
+	file.write('import BPyAddMesh\n')
+	file.write('from Blender.Mathutils import Vector\n\n')
+	
+	file.write('verts = [\\\n')
+	for v in me.verts:
+		file.write('Vector(%f,%f,%f),\\\n' % tuple(v.co))
+	file.write(']\n')
+	
+	file.write('edges = []\n') # TODO, write loose edges
+	
+	file.write('faces = [\\\n')
+	for f in me.faces:
+		file.write('%s,\\\n' % str(tuple([v.index for v in f])))
+	file.write(']\n')
+	
+	file.write('BPyAddMesh.add_mesh_simple("%s", verts, edges, faces)\n' % name)
+
+# The script below can make a file from a mesh with teh above function...
+'''
+#!BPY
+"""
+Name: 'Mesh as AddMesh Script'
+Blender: 242
+Group: 'Mesh'
+Tip: ''
+"""
+import BPyAddMesh
+reload(BPyAddMesh)
+
+import bpy
+
+def main():
+	# Add error checking
+	scn = bpy.data.scenes.active
+	ob = scn.objects.active
+	me = ob.getData(mesh=1)
+	
+	BPyAddMesh.write_mesh_script('/test.py', me)
+
+main()
+'''