==python scripts==

added ply import and export, extensively tested on files from

http://www.cs.virginia.edu/~gfx/Courses/2001/Advanced.spring.01/plymodels/

they give correct results for both import and export, however they could use some speed optimization for large mesh

1 files changed, 113 insertions, 0 deletions

diff --git a/release/scripts/ply_export.py b/release/scripts/ply_export.py
new file mode 100644
index 00000000000..86197692082
--- /dev/null
+++ b/release/scripts/ply_export.py
@@ -0,0 +1,113 @@
+#!BPY
+
+"""
+Name: 'PLY...'
+Blender: 237
+Group: 'Export'
+Tooltip: 'Export to Stanford PLY format'
+"""
+
+import Blender
+import meshtools
+import math
+
+__author__ = "Bruce Merry"
+__version__ = "0.9"
+__bpydoc__ = """\
+This script exports Stanford PLY files from Blender. It supports per-vertex
+normals and per-face colours and texture coordinates.
+"""
+
+# Copyright (C) 2004, 2005: Bruce Merry, bmerry@cs.uct.ac.za
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# 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 General Public License for more details.
+#
+# You should have received a copy of the GNU 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.
+
+def file_callback(filename):
+        if filename.find('.ply', -4) < 0: filename += '.ply'
+        file = open(filename, "wb")
+        objects = Blender.Object.GetSelected()
+        obj = objects[0]
+        mesh = objects[0].data
+
+        have_uv = mesh.hasFaceUV()
+        have_col = meshtools.has_vertex_colors(mesh)
+        verts = [] # list of dictionaries
+        vdict = {} # (index, normal, uv) -> new index
+        for (i, f) in enumerate(mesh.faces):
+                for (j, v) in enumerate(f.v):
+                        index = v.index
+                        key = index, tuple(v.no)
+                        vdata = {'position': v.co, 'normal': v.no}
+                        if have_uv:
+                                vdata['uv'] = f.uv[j]
+                                key = key + (tuple(f.uv[j]), )
+                        if have_col:
+                                vdata['col'] = f.col[j]
+                                key = key + ((f.col[j].r, f.col[j].g, f.col[j].b, f.col[j].a), )
+                        if not vdict.has_key(key):
+                                vdict[key] = len(verts);
+                                verts.append(vdata)
+                if not i % 100 and meshtools.show_progress:
+                        Blender.Window.DrawProgressBar(float(i) / len(mesh.faces), "Organising vertices")
+
+        print >> file, "ply"
+        print >> file, "format ascii 1.0"
+        print >> file, "comment created by ply_export.py from Blender"
+        print >> file, "element vertex %d" % len(verts)
+        print >> file, "property float32 x"
+        print >> file, "property float32 y"
+        print >> file, "property float32 z"
+        print >> file, "property float32 nx"
+        print >> file, "property float32 ny"
+        print >> file, "property float32 nz"
+        if have_uv:
+                print >> file, "property float32 s"
+                print >> file, "property float32 t"
+        if have_col:
+                print >> file, "property uint8 red"
+                print >> file, "property uint8 green"
+                print >> file, "property uint8 blue"
+        print >> file, "element face %d" % len(mesh.faces)
+        print >> file, "property list uint8 int32 vertex_indices"
+        print >> file, "end_header"
+
+        for (i, v) in enumerate(verts):
+                print >> file, "%f %f %f %f %f %f" % (tuple(v['position']) + tuple(v['normal'])),
+                if have_uv: print >> file, "%f %f" % tuple(v['uv']),
+                if have_col: print >> file, "%u %u %u" % (v['col'].r, v['col'].g, v['col'].b),
+                print >> file
+                if not i % 100 and meshtools.show_progress:
+                        Blender.Window.DrawProgressBar(float(i) / len(verts), "Writing vertices")
+        for (i, f) in enumerate(mesh.faces):
+                print >> file, "%d" % len(f.v),
+                for j in range(len(f.v)):
+                        v = f.v[j]
+                        index = v.index
+                        key = index, tuple(v.no)
+                        if have_uv:
+                                key = key + (tuple(f.uv[j]), )
+                        if have_col:
+                                key = key + ((f.col[j].r, f.col[j].g, f.col[j].b, f.col[j].a), )
+                        print >> file, "%d" % vdict[key],
+                print >> file
+                if not i % 100 and meshtools.show_progress:
+                        Blender.Window.DrawProgressBar(float(i) / len(mesh.faces), "Writing faces")
+
+	Blender.Window.DrawProgressBar(1.0, '')  # clear progressbar
+	file.close()
+	message = "Successfully exported " + Blender.sys.basename(filename)
+	meshtools.print_boxed(message)
+
+Blender.Window.FileSelector(file_callback, "PLY Export")