forked from bartvdbraak/blender
182 lines
4.8 KiB
Python
182 lines
4.8 KiB
Python
#!BPY
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"""
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Name: 'Solid Wireframe'
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Blender: 243
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Group: 'Mesh'
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Tooltip: 'Make a solid wireframe copy of this mesh'
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"""
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# --------------------------------------------------------------------------
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# Solid Wireframe1.0 by Campbell Barton (AKA Ideasman42)
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# --------------------------------------------------------------------------
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# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ***** END GPL LICENCE BLOCK *****
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# --------------------------------------------------------------------------
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import Blender
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from Blender import Scene, Mesh, Window, sys
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from Blender.Mathutils import AngleBetweenVecs
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#from BPyMesh import faceAngles # get angles for face cornders
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import BPyMesh
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reload(BPyMesh)
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faceAngles = BPyMesh.faceAngles
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# works out the distanbce to inset the corners based on angles
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from BPyMathutils import angleToLength
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#import BPyMathutils
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#reload(BPyMathutils)
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#angleToLength = BPyMathutils.angleToLength
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import mesh_solidify
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import BPyMessages
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import bpy
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def solid_wire(ob_orig, me_orig, sce, PREF_THICKNESS):
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# This function runs out of editmode with a mesh
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# error cases are alredy checked for
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inset_half = PREF_THICKNESS / 2
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del PREF_THICKNESS
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ob = ob_orig.copy()
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me = me_orig.copy()
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ob.link(me)
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sce.objects.selected = []
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sce.objects.link(ob)
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ob.sel = True
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# Modify the object
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# each face needs its own verts
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# orig_vert_count =len(me.verts)
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new_vert_count = len(me.faces) * 4
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for f in me.faces:
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if len(f) == 3:
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new_vert_count -= 1
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new_verts = []
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new_faces = []
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vert_index = len(me.verts)
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for f in me.faces:
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f_v_co = [v.co for v in f]
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angles = faceAngles(f_v_co)
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f_v_idx = [v.index for v in f]
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def new_vert(fi):
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co = f_v_co[fi]
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a = angles[fi]
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if a > 180:
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vert_inset = 1 * inset_half
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else:
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vert_inset = inset_half * angleToLength( abs((180-a) / 2) )
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# Calculate the inset direction
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co1 = f_v_co[fi-1]
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co2 = fi+1 # Wrap this index back to the start
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if co2 == len(f_v_co): co2 = 0
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co2 = f_v_co[co2]
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co1 = co1 - co
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co2 = co2 - co
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co1.normalize()
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co2.normalize()
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d = co1+co2
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# Done with inset direction
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d.length = vert_inset
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return co+d
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# return co+((cent-co)*inset)
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new_verts.extend([new_vert(i) for i in xrange(len(f_v_co))])
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if len(f_v_idx) == 4:
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new_faces.extend([\
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(f_v_idx[1], f_v_idx[0], vert_index, vert_index+1),\
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(f_v_idx[2], f_v_idx[1], vert_index+1, vert_index+2),\
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(f_v_idx[3], f_v_idx[2], vert_index+2, vert_index+3),\
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(f_v_idx[0], f_v_idx[3], vert_index+3, vert_index),\
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])
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if len(f_v_idx) == 3:
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new_faces.extend([\
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(f_v_idx[1], f_v_idx[0], vert_index, vert_index+1),\
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(f_v_idx[2], f_v_idx[1], vert_index+1, vert_index+2),\
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(f_v_idx[0], f_v_idx[2], vert_index+2, vert_index),\
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])
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vert_index += len(f_v_co)
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me.faces.delete(1, range(len(me.faces)))
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me.verts.extend(new_verts)
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me.faces.extend(new_faces)
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# External function, solidify
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me.sel = True
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mesh_solidify.solidify(me, -inset_half*2)
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def main():
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# Gets the current scene, there can be many scenes in 1 blend file.
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sce = bpy.scenes.active
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# Get the active object, there can only ever be 1
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# and the active object is always the editmode object.
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ob_act = sce.objects.active
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if not ob_act or ob_act.type != 'Mesh':
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BPyMessages.Error_NoMeshActive()
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return
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# Create the variables.
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PREF_THICK = Blender.Draw.Create(0.1)
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pup_block = [\
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('Thick:', PREF_THICK, 0.0001, 2.0, 'Skin thickness in mesh space.'),\
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]
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if not Blender.Draw.PupBlock('Solid Wireframe', pup_block):
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return
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# Saves the editmode state and go's out of
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# editmode if its enabled, we cant make
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# changes to the mesh data while in editmode.
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is_editmode = Window.EditMode()
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Window.WaitCursor(1)
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me = ob_act.getData(mesh=1) # old NMesh api is default
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t = sys.time()
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# Run the mesh editing function
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solid_wire(ob_act, me, sce, PREF_THICK.val)
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# Timing the script is a good way to be aware on any speed hits when scripting
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print 'Solid Wireframe finished in %.2f seconds' % (sys.time()-t)
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Window.WaitCursor(0)
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if is_editmode: Window.EditMode(1)
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# This lets you can import the script without running it
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if __name__ == '__main__':
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main() |