131 lines
3.4 KiB
Python
131 lines
3.4 KiB
Python
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#!BPY
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# """
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# Name: 'SVG: Export UV layout to SVG file'
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# Blender: 245
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# Group: 'UV'
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# Tooltip: 'Export selected objects to SVG file'
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# """
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__author__ = "Melchior FRANZ < mfranz # aon : at >"
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__url__ = "http://members.aon.at/mfranz/flightgear/"
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__version__ = "0.1"
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__bpydoc__ = """\
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Saves the UV mappings of all selected files to an SVG file. The uv_import_svg.py
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script can be used to re-import such a file. Each object and each group of adjacent
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faces therein will be put into an SVG group.
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"""
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ID_SEPARATOR = '#'
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import Blender, sys
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class Abort(Exception):
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def __init__(self, msg):
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self.msg = msg
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def get_adjacent(pool):
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i, face = pool.popitem()
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group = [face]
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uvcoords = {}
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for c in face.uv:
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uvcoords[(c[0], c[1])] = True
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while True:
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found = []
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for face in pool.itervalues():
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for c in face.uv:
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if (c[0], c[1]) in uvcoords:
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for d in face.uv:
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uvcoords[(d[0], d[1])] = True
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found.append(face)
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break
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if not found:
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break
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for face in found:
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group.append(face)
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del pool[face.index]
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return group
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def write_svg(filename):
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size = Blender.Draw.PupMenu("Image size%t|128|256|512|1024|2048|4096|8192")
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if size < 0:
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raise Abort('no image size chosen')
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size = 1 << (size + 6)
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print "exporting to '%s' (size %d) ... " % (filename, size),
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svg = open(filename, "w")
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svg.write('<?xml version="1.0" standalone="no"?>\n')
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svg.write('<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n\n')
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svg.write('<svg width="%spx" height="%spx" viewBox="0 0 %d %d" xmlns="http://www.w3.org/2000/svg"' \
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'version="1.1" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape">\n'
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% (size, size, size, size))
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svg.write("\t<desc>uv_export_svg.py: %s</desc>\n" % filename);
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svg.write('\t<rect x="0" y="0" width="%d" height="%d" fill="none" stroke="blue" stroke-width="%f"/>\n'
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% (size, size, 1.0))
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unique_meshes = {}
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for o in Blender.Scene.GetCurrent().objects.selected:
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if o.type != "Mesh":
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continue
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mesh = o.getData(mesh = 1)
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if not mesh.faceUV:
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continue
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if mesh.name in unique_meshes:
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#print "dropping duplicate mesh", mesh.name, "of object", o.name
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continue
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unique_meshes[mesh.name] = True
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svg.write('\t<g style="fill:yellow; stroke:black stroke-width:1px" inkscape:label="%s" id="%s">\n' % (o.name, o.name))
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pool = {}
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for f in mesh.faces:
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pool[f.index] = f
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while len(pool):
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svg.write('\t\t<g>\n')
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for f in get_adjacent(pool):
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svg.write('\t\t\t<polygon points="')
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for p in f.uv:
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svg.write('%.8f,%.8f ' % (p[0] * size, size - p[1] * size))
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svg.write('" id="%s%s%d"/>\n' % (mesh.name, ID_SEPARATOR, f.index))
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svg.write('\t\t</g>\n')
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svg.write("\t</g>\n")
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svg.write('</svg>\n')
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svg.close()
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print "done."
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def export(filename):
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registry = {}
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registry[basename] = Blender.sys.basename(filename)
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Blender.Registry.SetKey("UVImportExportSVG", registry, False)
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editmode = Blender.Window.EditMode()
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if editmode:
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Blender.Window.EditMode(0)
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try:
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write_svg(filename)
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except Abort, e:
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print "Error:", e.msg, " -> aborting ...\n"
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Blender.Draw.PupMenu("Error%t|" + e.msg)
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if editmode:
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Blender.Window.EditMode(1)
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active = Blender.Scene.GetCurrent().objects.active
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(basename, extname) = Blender.sys.splitext(Blender.Get("filename"))
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filename = Blender.sys.basename(basename) + "-" + active.name + ".svg"
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Blender.Window.FileSelector(export, "Export to SVG", filename)
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