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# ##### BEGIN GPL LICENSE BLOCK #####
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
import bpy
from bpy.props import *
class ExportUVLayout(bpy.types.Operator):
'''Export the Mesh as SVG'''
bl_idname = "uv.export_layout"
bl_label = "Export UV Layout"
bl_options = {'REGISTER', 'UNDO'}
filepath = StringProperty(name="File Path", description="File path used for exporting the SVG file", maxlen=1024, default="")
check_existing = BoolProperty(name="Check Existing", description="Check and warn on overwriting existing files", default=True, options={'HIDDEN'})
export_all = BoolProperty(name="All UV's", description="Export all UVs in this mesh (not just the visible ones)", default=False)
mode = EnumProperty(items=(
('SVG', "Scalable Vector Graphic (.svg)", "Export the UV layout to a vector SVG file"),
('EPS', "Encapsulate PostScript (.eps)", "Export the UV layout to a vector EPS file")),
name="Format",
description="File format to export the UV layout to",
default='SVG')
@classmethod
def poll(cls, context):
obj = context.active_object
return (obj and obj.type == 'MESH')
def _space_image(self, context):
space_data = context.space_data
if type(space_data) == bpy.types.SpaceImageEditor:
return space_data
else:
return None
def _image_size(self, context, default_width=1024, default_height=1024):
# fallback if not in image context.
image_width, image_height = default_width, default_height
space_data = self._space_image(context)
if space_data:
image = space_data.image
if image:
width, height = tuple(context.space_data.image.size)
# incase no data is found.
if width and height:
image_width, image_height = width, height
return image_width, image_height
def _face_uv_iter(self, context):
obj = context.active_object
mesh = obj.data
uv_layer = mesh.uv_textures.active.data
uv_layer_len = len(uv_layer)
if not self.properties.export_all:
local_image = Ellipsis
if context.tool_settings.show_uv_local_view:
space_data = self._space_image(context)
if space_data:
local_image = space_data.image
faces = mesh.faces
for i in range(uv_layer_len):
uv_elem = uv_layer[i]
# context checks
if faces[i].select and (local_image is Ellipsis or local_image == uv_elem.image):
#~ uv = uv_elem.uv
#~ if False not in uv_elem.select_uv[:len(uv)]:
#~ yield (i, uv)
# just write what we see.
yield (i, uv_layer[i].uv)
else:
# all, simple
for i in range(uv_layer_len):
yield (i, uv_layer[i].uv)
def execute(self, context):
# for making an XML compatible string
from xml.sax.saxutils import escape
from os.path import basename
obj = context.active_object
is_editmode = (obj.mode == 'EDIT')
if is_editmode:
bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
image_width, image_height = self._image_size(context)
mesh = obj.data
faces = mesh.faces
mode = self.properties.mode
filepath = self.properties.filepath
filepath = bpy.path.ensure_ext(filepath, "." + mode.lower())
file = open(filepath, "w")
fw = file.write
if mode == 'SVG':
fw('<?xml version="1.0" standalone="no"?>\n')
fw('<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" \n')
fw(' "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n')
fw('<svg width="%dpx" height="%dpx" viewBox="0px 0px %dpx %dpx"\n' % (image_width, image_height, image_width, image_height))
fw(' xmlns="http://www.w3.org/2000/svg" version="1.1">\n')
desc = "%s, %s, %s (Blender %s)" % (basename(bpy.data.filepath), obj.name, mesh.name, bpy.app.version_string)
fw('<desc>%s</desc>\n' % escape(desc))
# svg colors
fill_settings = []
fill_default = 'fill="grey"'
for mat in mesh.materials if mesh.materials else [None]:
if mat:
fill_settings.append('fill="rgb(%d, %d, %d)"' % tuple(int(c * 255) for c in mat.diffuse_color))
else:
fill_settings.append(fill_default)
for i, uvs in self._face_uv_iter(context):
try: # rare cases material index is invalid.
fill = fill_settings[faces[i].material_index]
except IndexError:
fill = fill_default
fw('<polygon %s fill-opacity="0.5" stroke="black" stroke-width="1px" \n' % fill)
fw(' points="')
for j, uv in enumerate(uvs):
x, y = uv[0], 1.0 - uv[1]
fw('%.3f,%.3f ' % (x * image_width, y * image_height))
fw('" />\n')
fw('\n')
fw('</svg>\n')
elif mode == 'EPS':
fw('%!PS-Adobe-3.0 EPSF-3.0\n')
fw("%%%%Creator: Blender %s\n" % bpy.app.version_string)
fw('%%Pages: 1\n')
fw('%%Orientation: Portrait\n')
fw("%%%%BoundingBox: 0 0 %d %d\n" % (image_width, image_height))
fw("%%%%HiResBoundingBox: 0.0 0.0 %.4f %.4f\n" % (image_width, image_height))
fw('%%EndComments\n')
fw('%%Page: 1 1\n')
fw('0 0 translate\n')
fw('1.0 1.0 scale\n')
fw('0 0 0 setrgbcolor\n')
fw('[] 0 setdash\n')
fw('1 setlinewidth\n')
fw('1 setlinejoin\n')
fw('1 setlinecap\n')
fw('/DRAW {')
# can remove from here to next comment to disable filling, aparently alpha is not supported
fw('gsave\n')
fw('0.7 setgray\n')
fw('fill\n')
fw('grestore\n')
fw('0 setgray\n')
# remove to here
fw('stroke\n')
fw('} def\n')
fw('newpath\n')
firstline = True
for i, uvs in self._face_uv_iter(context):
for j, uv in enumerate(uvs):
x, y = uv[0], uv[1]
if j == 0:
if not firstline:
fw('closepath\n')
fw('DRAW\n')
fw('newpath\n')
firstline = False
fw('%.5f %.5f moveto\n' % (x * image_width, y * image_height))
else:
fw('%.5f %.5f lineto\n' % (x * image_width, y * image_height))
fw('closepath\n')
fw('DRAW\n')
fw('showpage\n')
fw('%%EOF\n')
if is_editmode:
bpy.ops.object.mode_set(mode='EDIT', toggle=False)
return {'FINISHED'}
def invoke(self, context, event):
wm = context.manager
wm.add_fileselect(self)
return {'RUNNING_MODAL'}
def menu_func(self, context):
import os
default_path = os.path.splitext(bpy.data.filepath)[0] + ".svg"
self.layout.operator(ExportUVLayout.bl_idname).filepath = default_path
def register():
bpy.types.IMAGE_MT_uvs.append(menu_func)
def unregister():
bpy.types.IMAGE_MT_uvs.remove(menu_func)
if __name__ == "__main__":
register()
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