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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>
# Export wrappers and integration with external tools.
import bpy
import os
def image_copy_guess(filepath, objects):
# 'filepath' is the path we are writing to.
import shutil
from bpy_extras import object_utils
image = None
for obj in objects:
image = object_utils.object_image_guess(obj)
if image is not None:
break
if image is not None:
imagepath = bpy.path.abspath(image.filepath, library=image.library)
if os.path.exists(imagepath):
filepath_noext = os.path.splitext(filepath)[0]
ext = os.path.splitext(imagepath)[1]
imagepath_dst = filepath_noext + ext
print("copying texture: %r -> %r" % (imagepath, imagepath_dst))
try:
shutil.copy(imagepath, imagepath_dst)
except:
import traceback
traceback.print_exc()
def write_mesh(context, info, report_cb):
scene = context.scene
unit = scene.unit_settings
print_3d = scene.print_3d
obj_base = scene.object_bases.active
obj = obj_base.object
export_format = print_3d.export_format
global_scale = unit.scale_length if (unit.system != 'NONE' and print_3d.use_apply_scale) else 1.0
path_mode = 'COPY' if print_3d.use_export_texture else 'AUTO'
context_override = context.copy()
obj_base_tmp = None
# PLY can only export single mesh objects!
if export_format == 'PLY':
context_backup = context.copy()
bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
from . import mesh_helpers
obj_base_tmp = mesh_helpers.object_merge(context, context_override["selected_objects"])
context_override["active_object"] = obj_base_tmp.object
context_override["selected_bases"] = [obj_base_tmp]
context_override["selected_objects"] = [obj_base_tmp.object]
else:
if obj_base not in context_override["selected_bases"]:
context_override["selected_bases"].append(obj_base)
if obj not in context_override["selected_objects"]:
context_override["selected_objects"].append(obj)
export_path = bpy.path.abspath(print_3d.export_path)
# Create name 'export_path/blendname-objname'
# add the filename component
if bpy.data.is_saved:
name = os.path.basename(bpy.data.filepath)
name = os.path.splitext(name)[0]
else:
name = "untitled"
# add object name
name += "-%s" % bpy.path.clean_name(obj.name)
# first ensure the path is created
if export_path:
# this can fail with strange errors,
# if the dir cant be made then we get an error later.
try:
os.makedirs(export_path, exist_ok=True)
except:
import traceback
traceback.print_exc()
filepath = os.path.join(export_path, name)
# ensure addon is enabled
import addon_utils
def addon_ensure(addon_id):
# Enable the addon, dont change preferences.
default_state, loaded_state = addon_utils.check(addon_id)
if not loaded_state:
addon_utils.enable(addon_id, default_set=False)
if export_format == 'STL':
addon_ensure("io_mesh_stl")
filepath = bpy.path.ensure_ext(filepath, ".stl")
ret = bpy.ops.export_mesh.stl(
context_override,
filepath=filepath,
ascii=False,
use_mesh_modifiers=True,
use_selection=True,
global_scale=global_scale,
)
elif export_format == 'PLY':
addon_ensure("io_mesh_ply")
filepath = bpy.path.ensure_ext(filepath, ".ply")
ret = bpy.ops.export_mesh.ply(
context_override,
filepath=filepath,
use_mesh_modifiers=True,
global_scale=global_scale,
)
elif export_format == 'X3D':
addon_ensure("io_scene_x3d")
filepath = bpy.path.ensure_ext(filepath, ".x3d")
ret = bpy.ops.export_scene.x3d(
context_override,
filepath=filepath,
use_mesh_modifiers=True,
use_selection=True,
path_mode=path_mode,
global_scale=global_scale,
)
elif export_format == 'WRL':
addon_ensure("io_scene_vrml2")
filepath = bpy.path.ensure_ext(filepath, ".wrl")
ret = bpy.ops.export_scene.vrml2(
context_override,
filepath=filepath,
use_mesh_modifiers=True,
use_selection=True,
path_mode=path_mode,
global_scale=global_scale,
)
elif export_format == 'OBJ':
addon_ensure("io_scene_obj")
filepath = bpy.path.ensure_ext(filepath, ".obj")
ret = bpy.ops.export_scene.obj(
context_override,
filepath=filepath,
use_mesh_modifiers=True,
use_selection=True,
path_mode=path_mode,
global_scale=global_scale,
)
else:
assert(0)
# for formats that don't support images
if export_format in {'STL', 'PLY'}:
if path_mode == 'COPY':
image_copy_guess(filepath, context_override["selected_objects"])
if obj_base_tmp is not None:
obj = obj_base_tmp.object
mesh = obj.data
scene.objects.unlink(obj)
bpy.data.objects.remove(obj)
bpy.data.meshes.remove(mesh)
del obj_base_tmp, obj, mesh
# restore context
base = None
for base in context_backup["selected_bases"]:
base.select = True
del base
scene.objects.active = context_backup["active_object"]
if 'FINISHED' in ret:
info.append(("%r ok" % os.path.basename(filepath), None))
if report_cb is not None:
report_cb({'INFO'}, "Exported: %r" % filepath)
return True
else:
info.append(("%r fail" % os.path.basename(filepath), None))
return False
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