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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 #####
# <pep8-80 compliant>
bl_info = {
"name": "UV Layout",
"author": "Campbell Barton, Matt Ebb",
"version": (1, 1, 1),
"blender": (2, 80, 0),
"location": "Image-Window > UVs > Export UV Layout",
"description": "Export the UV layout as a 2D graphic",
"warning": "",
"wiki_url": "http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Import-Export/UV_Layout",
"support": 'OFFICIAL',
"category": "Import-Export",
}
# @todo write the wiki page
if "bpy" in locals():
import importlib
if "export_uv_eps" in locals():
importlib.reload(export_uv_eps)
if "export_uv_png" in locals():
importlib.reload(export_uv_png)
if "export_uv_svg" in locals():
importlib.reload(export_uv_svg)
import os
import bpy
from . import export_uv_eps
from . import export_uv_png
from . import export_uv_svg
from bpy.props import (
StringProperty,
BoolProperty,
EnumProperty,
IntVectorProperty,
FloatProperty,
)
class ExportUVLayout(bpy.types.Operator):
"""Export UV layout to file"""
bl_idname = "uv.export_layout"
bl_label = "Export UV Layout"
bl_options = {'REGISTER', 'UNDO'}
filepath: StringProperty(
subtype='FILE_PATH',
)
export_all: BoolProperty(
name="All UVs",
description="Export all UVs in this mesh (not just visible ones)",
default=False,
)
modified: BoolProperty(
name="Modified",
description="Exports UVs from the modified mesh",
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"),
('PNG', "PNG Image (.png)",
"Export the UV layout to a bitmap image"),
),
name="Format",
description="File format to export the UV layout to",
default='PNG',
)
size: IntVectorProperty(
size=2,
default=(1024, 1024),
min=8, max=32768,
description="Dimensions of the exported file",
)
opacity: FloatProperty(
name="Fill Opacity",
min=0.0, max=1.0,
default=0.25,
description="Set amount of opacity for exported UV layout",
)
@classmethod
def poll(cls, context):
obj = context.active_object
return obj is not None and obj.type == 'MESH' and obj.data.uv_layers
def invoke(self, context, event):
self.size = self.get_image_size(context)
self.filepath = self.get_default_file_name(context) + "." + self.mode.lower()
context.window_manager.fileselect_add(self)
return {'RUNNING_MODAL'}
def get_default_file_name(self, context):
AMOUNT = 3
objects = list(self.iter_objects_to_export(context))
name = " ".join(sorted([obj.name for obj in objects[:AMOUNT]]))
if len(objects) > AMOUNT:
name += " and more"
return name
def check(self, context):
if any(self.filepath.endswith(ext) for ext in (".png", ".eps", ".svg")):
self.filepath = self.filepath[:-4]
ext = "." + self.mode.lower()
self.filepath = bpy.path.ensure_ext(self.filepath, ext)
return True
def execute(self, context):
obj = context.active_object
is_editmode = (obj.mode == 'EDIT')
if is_editmode:
bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
filepath = self.filepath
filepath = bpy.path.ensure_ext(filepath, "." + self.mode.lower())
meshes = list(self.iter_meshes_to_export(context))
polygon_data = list(self.iter_polygon_data_to_draw(context, meshes))
different_colors = set(color for _, color in polygon_data)
if self.modified:
self.free_meshes(meshes)
export = self.get_exporter()
export(filepath, polygon_data, different_colors, self.size[0], self.size[1], self.opacity)
if is_editmode:
bpy.ops.object.mode_set(mode='EDIT', toggle=False)
return {'FINISHED'}
def iter_meshes_to_export(self, context):
for obj in self.iter_objects_to_export(context):
if self.modified:
yield obj.to_mesh(context.depsgraph, apply_modifiers=True)
else:
yield obj.data
@staticmethod
def iter_objects_to_export(context):
for obj in context.selected_objects:
if obj.type != 'MESH':
continue
mesh = obj.data
if mesh.uv_layers.active is None:
continue
yield obj
@staticmethod
def free_meshes(meshes):
for mesh in meshes:
bpy.data.meshes.remove(mesh)
@staticmethod
def currently_image_image_editor(context):
return isinstance(context.space_data, bpy.types.SpaceImageEditor)
def get_currently_opened_image(self, context):
if not self.currently_image_image_editor(context):
return None
return context.space_data.image
def get_image_size(self, context):
# fallback if not in image context
image_width = self.size[0]
image_height = self.size[1]
# get size of "active" image if some exist
image = self.get_currently_opened_image(context)
if image is not None:
width, height = image.size
if width and height:
image_width = width
image_height = height
return image_width, image_height
def iter_polygon_data_to_draw(self, context, meshes):
for mesh in meshes:
uv_layer = mesh.uv_layers.active.data
for polygon in mesh.polygons:
if self.export_all or polygon.select:
start = polygon.loop_start
end = start + polygon.loop_total
uvs = tuple(tuple(uv.uv) for uv in uv_layer[start:end])
yield (uvs, self.get_polygon_color(mesh, polygon))
@staticmethod
def get_polygon_color(mesh, polygon, default=(0.8, 0.8, 0.8)):
if polygon.material_index < len(mesh.materials):
material = mesh.materials[polygon.material_index]
if material is not None:
return tuple(material.diffuse_color)
return default
def get_exporter(self):
if self.mode == 'PNG':
return export_uv_png.export
elif self.mode == 'EPS':
return export_uv_eps.export
elif self.mode == 'SVG':
return export_uv_svg.export
else:
assert False
def menu_func(self, context):
self.layout.operator(ExportUVLayout.bl_idname)
def register():
bpy.utils.register_class(ExportUVLayout)
bpy.types.IMAGE_MT_uvs.append(menu_func)
def unregister():
bpy.utils.unregister_class(ExportUVLayout)
bpy.types.IMAGE_MT_uvs.remove(menu_func)
if __name__ == "__main__":
register()
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