forked from bartvdbraak/blender
985fb03478
* Added a keyword argument to mesh.transform() - "selected_only" so you can transform the selected verts. this wont break existing scripts. * Documented these changes in epydocs. * used these functions in BPyAddMesh
148 lines
3.0 KiB
Python
148 lines
3.0 KiB
Python
import Blender
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from Blender.Window import EditMode, GetCursorPos, GetViewQuat
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import bpy
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def add_mesh_simple(name, verts, edges, faces):
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'''
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Adds a mesh from verts, edges and faces
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name - new object/mesh name
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verts - list of 3d vectors
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edges - list of int pairs
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faces - list of int triplets/quads
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'''
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scn = bpy.scenes.active
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if scn.lib: return
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ob_act = scn.objects.active
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cursor = GetCursorPos()
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try: quat = Blender.Mathutils.Quaternion(GetViewQuat())
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except: quat = None
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# Exist editmode for non mesh types
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if ob_act and ob_act.type != 'Mesh' and EditMode():
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EditMode(0)
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# We are in mesh editmode
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if EditMode():
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# Add to existing mesh
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# must exit editmode to modify mesh
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EditMode(0)
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me = ob_act.getData(mesh=1)
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me.sel = False
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vert_offset = len(me.verts)
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edge_offset = len(me.edges)
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face_offset = len(me.faces)
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# transform the verts
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txmat = Blender.Mathutils.TranslationMatrix(Blender.Mathutils.Vector(cursor))
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if quat:
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mat = quat.toMatrix()
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mat.invert()
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mat.resize4x4()
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txmat = mat * txmat
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txmat = txmat * ob_act.matrixWorld.copy().invert()
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me.verts.extend(verts)
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# Transform the verts by the cursor and view rotation
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me.transform(txmat, selected_only=True)
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if vert_offset:
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me.edges.extend([[i+vert_offset for i in e] for e in edges])
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me.faces.extend([[i+vert_offset for i in f] for f in faces])
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else:
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# Mesh with no data, unlikely
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me.edges.extend(edges)
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me.faces.extend(faces)
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EditMode(1)
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else:
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# Object mode add new
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me = bpy.meshes.new(name)
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me.verts.extend(verts)
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me.edges.extend(edges)
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me.faces.extend(faces)
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me.sel = True
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# Object creation and location
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scn.objects.selected = []
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ob_act = scn.objects.new(me, name)
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scn.objects.active = ob_act
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if quat:
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mat = quat.toMatrix()
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mat.invert()
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mat.resize4x4()
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ob_act.setMatrix(mat)
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ob_act.loc = cursor
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EditMode(1)
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def write_mesh_script(filepath, me):
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'''
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filepath - path to py file
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me - mesh to write
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'''
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name = me.name
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file = open(filepath, 'w')
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file.write('#!BPY\n')
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file.write('"""\n')
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file.write('Name: \'%s\'\n' % name)
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file.write('Blender: 243\n')
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file.write('Group: \'AddMesh\'\n')
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file.write('"""\n\n')
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file.write('import BPyAddMesh\n')
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file.write('from Blender.Mathutils import Vector\n\n')
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file.write('verts = [\\\n')
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for v in me.verts:
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file.write('Vector(%f,%f,%f),\\\n' % tuple(v.co))
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file.write(']\n')
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file.write('edges = []\n') # TODO, write loose edges
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file.write('faces = [\\\n')
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for f in me.faces:
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file.write('%s,\\\n' % str(tuple([v.index for v in f])))
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file.write(']\n')
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file.write('BPyAddMesh.add_mesh_simple("%s", verts, edges, faces)\n' % name)
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# The script below can make a file from a mesh with teh above function...
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'''
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#!BPY
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"""
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Name: 'Mesh as AddMesh Script'
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Blender: 242
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Group: 'Mesh'
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Tip: ''
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"""
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import BPyAddMesh
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reload(BPyAddMesh)
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import bpy
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def main():
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# Add error checking
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scn = bpy.scenes.active
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ob = scn.objects.active
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me = ob.getData(mesh=1)
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BPyAddMesh.write_mesh_script('/test.py', me)
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main()
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'''
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