diff options
Diffstat (limited to 'intern/python/objexport')
| -rw-r--r-- | intern/python/objexport/BlendImport.py | 157 | ||||
| -rw-r--r-- | intern/python/objexport/objimport.py | 119 |
2 files changed, 276 insertions, 0 deletions
diff --git a/intern/python/objexport/BlendImport.py b/intern/python/objexport/BlendImport.py new file mode 100644 index 00000000000..d72370f783f --- /dev/null +++ b/intern/python/objexport/BlendImport.py @@ -0,0 +1,157 @@ +#! /usr/bin/env python + +####################### +# (c) Jan Walter 2000 # +####################### + +# CVS +# $Author$ +# $Date$ +# $RCSfile$ +# $Revision$ + +TAB = " " + +vertices = [] +vertexNormals = [] +faces = [] +materials = [] +switchMaterial = [] +currentMaterial = [] +materialIndex = 0 + +def addVertex(x, y, z): + global vertices + vertices.append([x, y, z]) + return len(vertices) + +def addVertexNormal(i, j, k): + global vertexNormals + vertexNormals.append([i, j, k]) + return len(vertexNormals) + +def addFace(vi, ti, ni): + global faces + faces.append([vi, ti, ni]) + return len(faces) + +def addMaterial(name, Kd, Ks, Ka): + global materials + materials.append([name, Kd, Ks, Ka]) + return len(materials) + +def findMaterial(name): + global materials + for material in materials: + if material[0] == name: + return material + +def setCurrentMaterial(name): + global switchMaterial, faces, currentMaterial + switchMaterial.append(len(faces)) + currentMaterial.append(name) + +class OpenInventor: + def export(self, filename, useNormals = 1, useMaterials = 1): + global vertices, vertexNormals, faces, materials, switchMaterial + global currentMaterial, materialIndex + file = open(filename, "w") + file.write("#Inventor V2.1 ascii\n\n") + file.write("Separator {\n") + ############ + # vertices # + ############ + file.write("%sCoordinate3 {\n" % (TAB, )) + file.write("%spoint [ \n" % (TAB*2, )) + for i in xrange(len(vertices)-1): + x, y, z = vertices[i] + file.write("%s %s %s %s,\n" % (TAB*2, x, y, z)) + x, y, z = vertices[i+1] + file.write("%s %s %s %s\n" % (TAB*2, x, y, z)) + file.write("%s ] \n" % (TAB*2, )) + file.write("%s}\n" % (TAB, )) + ########### + # normals # + ########### + if useNormals: + file.write("%sNormal {\n" % (TAB, )) + file.write("%svector [ \n" % (TAB*2, )) + for i in xrange(len(vertexNormals)-1): + x, y, z = vertexNormals[i] + file.write("%s %s %s %s,\n" % (TAB*2, x, y, z)) + x, y, z = vertexNormals[i-1] + file.write("%s %s %s %s\n" % (TAB*2, x, y, z)) + file.write("%s ] \n" % (TAB*2, )) + file.write("%s}\n" % (TAB, )) + ######### + # faces # + ######### + switchMaterial.append(len(faces)) + for si in xrange(len(switchMaterial) - 1): + i1, i2 = switchMaterial[si], switchMaterial[si+1] + # -------------- + # write material + # -------------- + if materials: + name = currentMaterial[materialIndex] + material = findMaterial(name) + if useMaterials: + file.write("%sMaterial {\n" % (TAB, )) + file.write("%sambientColor %s %s %s\n" % + (TAB*2, + material[3][0], + material[3][1], + material[3][2])) + file.write("%sdiffuseColor %s %s %s\n" % + (TAB*2, + material[1][0], + material[1][1], + material[1][2])) + file.write("%sspecularColor %s %s %s\n" % + (TAB*2, + material[2][0], + material[2][1], + material[2][2])) + file.write("%s}\n" % (TAB, )) + # ----------- + # write faces + # ----------- + file.write("%sIndexedFaceSet {\n" % (TAB, )) + # indices for vertices + file.write("%scoordIndex [ \n" % (TAB*2, )) + for i in xrange(i1, i2-1): + indices = faces[i][0] + istring = "" + for index in indices: + # indices begin with 0 in OpenInventor + istring = istring + "%s, " % (index - 1, ) + file.write("%s %s-1, \n" % (TAB*2, istring)) + indices = faces[i+1][0] + istring = "" + for index in indices: + # indices begin with 0 in OpenInventor + istring = istring + "%s, " % (index - 1, ) + file.write("%s %s-1\n" % (TAB*2, istring)) + file.write("%s ] \n" % (TAB*2, )) + # update materialIndex + materialIndex = materialIndex + 1 + if useNormals: + # indices for normals + file.write("%snormalIndex [ \n" % (TAB*2, )) + for i in xrange(i1, i2-1): + indices = faces[i][2] + istring = "" + for index in indices: + # indices begin with 0 in OpenInventor + istring = istring + "%s, " % (index - 1, ) + file.write("%s %s-1, \n" % (TAB*2, istring)) + indices = faces[i+1][2] + istring = "" + for index in indices: + # indices begin with 0 in OpenInventor + istring = istring + "%s, " % (index - 1, ) + file.write("%s %s-1\n" % (TAB*2, istring)) + file.write("%s ] \n" % (TAB*2, )) + file.write("%s}\n" % (TAB, )) + file.write("}\n") + file.close() diff --git a/intern/python/objexport/objimport.py b/intern/python/objexport/objimport.py new file mode 100644 index 00000000000..0150a2571ad --- /dev/null +++ b/intern/python/objexport/objimport.py @@ -0,0 +1,119 @@ +#! /usr/bin/env python + +####################### +# (c) Jan Walter 2000 # +####################### + +# CVS +# $Author$ +# $Date$ +# $RCSfile$ +# $Revision$ + +import BlendImport +import os +import sys +import string + +def usage(): + print "usage: python objimport.py objfile" + +def testObjImport(filename): + print filename + vcount = 0 + vncount = 0 + fcount = 0 + file = open(filename, "r") + lines = file.readlines() + linenumber = 1 + for line in lines: + words = string.split(line) + if words and words[0] == "#": + pass # ignore comments + elif words and words[0] == "v": + vcount = vcount + 1 + x = string.atof(words[1]) + y = string.atof(words[2]) + z = string.atof(words[3]) + ##print "Vertex %s: (%s, %s, %s)" % (vcount, x, y, z) + index = BlendImport.addVertex(x, y, z) + ##print "addVertex(%s)" % index + elif words and words[0] == "vn": + vncount = vncount + 1 + i = string.atof(words[1]) + j = string.atof(words[2]) + k = string.atof(words[3]) + ##print "VertexNormal %s: (%s, %s, %s)" % (vncount, i, j, k) + index = BlendImport.addVertexNormal(i, j, k) + ##print "addVertexNormal(%s)" % index + elif words and words[0] == "f": + fcount = fcount + 1 + vi = [] # vertex indices + ti = [] # texture indices + ni = [] # normal indices + words = words[1:] + lcount = len(words) + for index in (xrange(lcount)): + vtn = string.split(words[index], "/") + vi.append(string.atoi(vtn[0])) + if len(vtn) > 1 and vtn[1]: + ti.append(string.atoi(vtn[1])) + if len(vtn) > 2 and vtn[2]: + ni.append(string.atoi(vtn[2])) + ##print "Face %s: (%s, %s, %s)" % (fcount, vi, ti, ni) + index = BlendImport.addFace(vi, ti, ni) + ##print "addFace(%s)" % index + elif words and words[0] == "mtllib": + # try to export materials + directory, dummy = os.path.split(filename) + filename = os.path.join(directory, words[1]) + try: + file = open(filename, "r") + except: + print "no material file %s" % filename + else: + file = open(filename, "r") + line = file.readline() + while line: + words = string.split(line) + if words and words[0] == "newmtl": + name = words[1] + file.readline() # Ns . + file.readline() # d . + file.readline() # illum . + line = file.readline() + words = string.split(line) + Kd = [string.atof(words[1]), + string.atof(words[2]), + string.atof(words[3])] + line = file.readline() + words = string.split(line) + Ks = [string.atof(words[1]), + string.atof(words[2]), + string.atof(words[3])] + line = file.readline() + words = string.split(line) + Ka = [string.atof(words[1]), + string.atof(words[2]), + string.atof(words[3])] + index = BlendImport.addMaterial(name, Kd, Ks, Ka) + line = file.readline() + file.close() + elif words and words[0] == "usemtl": + name = words[1] + BlendImport.setCurrentMaterial(name) + elif words: + pass + ##print "%s: %s" % (linenumber, words) + linenumber = linenumber + 1 + file.close() + # export to OpenInventor + BlendImport.OpenInventor().export("test.iv", + useNormals = 1, useMaterials = 1) + +if __name__ == "__main__": + if len(sys.argv) != 2: + usage() + else: + filename = sys.argv[1] + testObjImport(filename) |