193 lines
8.1 KiB
Python
193 lines
8.1 KiB
Python
#***************************************************************************
|
|
#* *
|
|
#* Copyright (c) 2011 *
|
|
#* Yorik van Havre <yorik@uncreated.net> *
|
|
#* *
|
|
#* This program is free software; you can redistribute it and/or modify *
|
|
#* it under the terms of the GNU Lesser General Public License (LGPL) *
|
|
#* as published by the Free Software Foundation; either version 2 of *
|
|
#* the License, or (at your option) any later version. *
|
|
#* for detail see the LICENCE text file. *
|
|
#* *
|
|
#* This program is distributed in the hope that it will be useful, *
|
|
#* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
#* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
#* GNU Library General Public License for more details. *
|
|
#* *
|
|
#* You should have received a copy of the GNU Library General Public *
|
|
#* License along with this program; if not, write to the Free Software *
|
|
#* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
|
|
#* USA *
|
|
#* *
|
|
#***************************************************************************
|
|
|
|
import FreeCAD, Mesh, os, numpy, MeshPart, Arch, Draft
|
|
if FreeCAD.GuiUp:
|
|
from DraftTools import translate
|
|
else:
|
|
def translate(context,text):
|
|
return text
|
|
|
|
__title__="FreeCAD Collada importer"
|
|
__author__ = "Yorik van Havre"
|
|
__url__ = "http://www.freecadweb.org"
|
|
|
|
DEBUG = True
|
|
|
|
def checkCollada():
|
|
"checks if collada if available"
|
|
global collada
|
|
COLLADA = None
|
|
try:
|
|
import collada
|
|
except ImportError:
|
|
FreeCAD.Console.PrintError(translate("Arch","pycollada not found, collada support is disabled.\n"))
|
|
return False
|
|
else:
|
|
return True
|
|
|
|
def triangulate(shape):
|
|
"triangulates the given face"
|
|
p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Arch")
|
|
mesher = p.GetInt("ColladaMesher",0)
|
|
tessellation = p.GetFloat("ColladaTessellation",1.0)
|
|
grading = p.GetFloat("ColladaGrading",0.3)
|
|
segsperedge = p.GetInt("ColladaSegsPerEdge",1)
|
|
segsperradius = p.GetInt("ColladaSegsPerRadius",2)
|
|
secondorder = p.GetBool("ColladaSecondOrder",False)
|
|
optimize = p.GetBool("ColladaOptimize",True)
|
|
allowquads = p.GetBool("ColladaAllowQuads",False)
|
|
if mesher == 0:
|
|
return shape.tessellate(tessellation)
|
|
elif mesher == 1:
|
|
return MeshPart.meshFromShape(Shape=shape,MaxLength=tessellation).Topology
|
|
else:
|
|
return MeshPart.meshFromShape(Shape=shape,GrowthRate=grading,SegPerEdge=segsperedge,
|
|
SegPerRadius=segsperradius,SecondOrder=secondorder,Optimize=optimize,
|
|
AllowQuad=allowquads).Topology
|
|
|
|
|
|
def open(filename):
|
|
"called when freecad wants to open a file"
|
|
if not checkCollada():
|
|
return
|
|
docname = (os.path.splitext(os.path.basename(filename))[0]).encode("utf8")
|
|
doc = FreeCAD.newDocument(docname)
|
|
doc.Label = decode(docname)
|
|
FreeCAD.ActiveDocument = doc
|
|
read(filename)
|
|
return doc
|
|
|
|
def insert(filename,docname):
|
|
"called when freecad wants to import a file"
|
|
if not checkCollada():
|
|
return
|
|
try:
|
|
doc = FreeCAD.getDocument(docname)
|
|
except NameError:
|
|
doc = FreeCAD.newDocument(docname)
|
|
FreeCAD.ActiveDocument = doc
|
|
read(filename)
|
|
return doc
|
|
|
|
def decode(name):
|
|
"decodes encoded strings"
|
|
try:
|
|
decodedName = (name.decode("utf8"))
|
|
except UnicodeDecodeError:
|
|
try:
|
|
decodedName = (name.decode("latin1"))
|
|
except UnicodeDecodeError:
|
|
FreeCAD.Console.PrintError(translate("Arch","Error: Couldn't determine character encoding"))
|
|
decodedName = name
|
|
return decodedName
|
|
|
|
def read(filename):
|
|
global col
|
|
col = collada.Collada(filename, ignore=[collada.DaeUnsupportedError])
|
|
# Read the unitmeter info from dae file and compute unit to convert to mm
|
|
unitmeter = col.assetInfo.unitmeter or 1
|
|
unit = unitmeter / 0.001
|
|
for geom in col.scene.objects('geometry'):
|
|
#for geom in col.geometries:
|
|
for prim in geom.primitives():
|
|
#for prim in geom.primitives:
|
|
#print prim, dir(prim)
|
|
meshdata = []
|
|
if hasattr(prim,"triangles"):
|
|
tset = prim.triangles()
|
|
elif hasattr(prim,"triangleset"):
|
|
tset = prim.triangleset()
|
|
else:
|
|
tset = []
|
|
for tri in tset:
|
|
face = []
|
|
for v in tri.vertices:
|
|
v = [x * unit for x in v]
|
|
face.append([v[0],v[1],v[2]])
|
|
meshdata.append(face)
|
|
#print meshdata
|
|
newmesh = Mesh.Mesh(meshdata)
|
|
#print newmesh
|
|
obj = FreeCAD.ActiveDocument.addObject("Mesh::Feature","Mesh")
|
|
obj.Mesh = newmesh
|
|
|
|
def export(exportList,filename,tessellation=1):
|
|
"called when freecad exports a file"
|
|
if not checkCollada(): return
|
|
p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Arch")
|
|
scale = p.GetFloat("ColladaScalingFactor",1.0)
|
|
colmesh = collada.Collada()
|
|
colmesh.assetInfo.upaxis = collada.asset.UP_AXIS.Z_UP
|
|
effect = collada.material.Effect("effect0", [], "phong", diffuse=(.7,.7,.7), specular=(1,1,1))
|
|
mat = collada.material.Material("material0", "mymaterial", effect)
|
|
colmesh.effects.append(effect)
|
|
colmesh.materials.append(mat)
|
|
objind = 0
|
|
scenenodes = []
|
|
objectslist = Draft.getGroupContents(exportList,walls=True,addgroups=True)
|
|
objectslist = Arch.pruneIncluded(objectslist)
|
|
for obj in objectslist:
|
|
vindex = []
|
|
nindex = []
|
|
findex = []
|
|
m = None
|
|
if obj.isDerivedFrom("Part::Feature"):
|
|
print "exporting object ",obj.Name, obj.Shape
|
|
m = Mesh.Mesh(triangulate(obj.Shape))
|
|
elif obj.isDerivedFrom("Mesh::Feature"):
|
|
print "exporting object ",obj.Name, obj.Mesh
|
|
m = obj.Mesh
|
|
if m:
|
|
# vertex indices
|
|
for v in m.Topology[0]:
|
|
vindex.extend([v.x*scale,v.y*scale,v.z*scale])
|
|
# normals
|
|
for f in m.Facets:
|
|
n = f.Normal
|
|
nindex.extend([n.x,n.y,n.z])
|
|
# face indices
|
|
for i in range(len(m.Topology[1])):
|
|
f = m.Topology[1][i]
|
|
findex.extend([f[0],i,f[1],i,f[2],i])
|
|
print len(vindex), " vert indices, ", len(nindex), " norm indices, ", len(findex), " face indices."
|
|
vert_src = collada.source.FloatSource("cubeverts-array"+str(objind), numpy.array(vindex), ('X', 'Y', 'Z'))
|
|
normal_src = collada.source.FloatSource("cubenormals-array"+str(objind), numpy.array(nindex), ('X', 'Y', 'Z'))
|
|
geom = collada.geometry.Geometry(colmesh, "geometry"+str(objind), obj.Name, [vert_src, normal_src])
|
|
input_list = collada.source.InputList()
|
|
input_list.addInput(0, 'VERTEX', "#cubeverts-array"+str(objind))
|
|
input_list.addInput(1, 'NORMAL', "#cubenormals-array"+str(objind))
|
|
triset = geom.createTriangleSet(numpy.array(findex), input_list, "materialref")
|
|
geom.primitives.append(triset)
|
|
colmesh.geometries.append(geom)
|
|
matnode = collada.scene.MaterialNode("materialref", mat, inputs=[])
|
|
geomnode = collada.scene.GeometryNode(geom, [matnode])
|
|
node = collada.scene.Node("node"+str(objind), children=[geomnode])
|
|
scenenodes.append(node)
|
|
objind += 1
|
|
myscene = collada.scene.Scene("myscene", scenenodes)
|
|
colmesh.scenes.append(myscene)
|
|
colmesh.scene = myscene
|
|
colmesh.write(filename)
|
|
FreeCAD.Console.PrintMessage(translate("Arch","file %s successfully created.") % filename)
|