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Adding Ch8 source
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‎SourceCode/Ch8/extension/projection_painting_helper_4.2/__init__.py

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‎SourceCode/Ch8/extension/projection_painting_helper_4.2/apply_modifiers.py

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# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# GNU GPLv3, 29 June 2007
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#
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# Examples from Ch8 of the book "Blender Scripting with Python" by Isabel Lupiani.
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# Copyright (C) 2024 Isabel Lupiani, Apress.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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# ##### END GPL LICENSE BLOCK #####
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__all__ = (
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"apply_all_modifiers",
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"apply_given_modifier",
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)
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import bpy
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from .view_fit import get_context_override
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def apply_all_modifiers(context, obj_to_apply_modifier):
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for obj in context.view_layer.objects:
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obj.select_set(False)
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context.view_layer.objects.active = obj_to_apply_modifier
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obj_to_apply_modifier.select_set(True)
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context_override, override_succesful = get_context_override(context, 'VIEW_3D', 'WINDOW')
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if override_succesful:
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with bpy.context.temp_override(**context_override):
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bpy.ops.object.mode_set(mode='OBJECT')
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context_override, override_succesful = get_context_override(context, 'VIEW_3D', 'WINDOW')
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if override_succesful:
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with bpy.context.temp_override(**context_override):
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for m in obj_to_apply_modifier.modifiers:
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try:
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bpy.ops.object.modifier_apply(modifier=m.name)
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except RuntimeError:
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continue
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def apply_given_modifier(context, obj_to_apply_modifier, modifier_type, modifier_name):
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for obj in context.view_layer.objects:
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obj.select_set(False)
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context.view_layer.objects.active = obj_to_apply_modifier
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obj_to_apply_modifier.select_set(True)
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context_override, override_succesful = get_context_override(context, 'VIEW_3D', 'WINDOW')
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if override_succesful:
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with bpy.context.temp_override(**context_override):
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bpy.ops.object.mode_set(mode='OBJECT')
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context_override, override_succesful = get_context_override(context, 'VIEW_3D', 'WINDOW')
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if override_succesful:
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with bpy.context.temp_override(**context_override):
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for m in obj_to_apply_modifier.modifiers:
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if m.type==modifier_type and m.name==modifier_name:
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try:
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bpy.ops.object.modifier_apply(modifier=m.name)
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except RuntimeError:
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return
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return

‎SourceCode/Ch8/extension/projection_painting_helper_4.2/blender_manifest.toml

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schema_version = "1.0.0"
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id = "projection_painting_helper"
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version = "2.0.0"
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name = "Projection Painting Helper"
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tagline = "Ch8 Examples of Blender Scripting with Python by Isabel Lupiani"
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maintainer = "Isabel Lupiani <[email protected]>"
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type = "add-on"
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tags = ["Paint", "UV"]
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blender_version_min = "4.2.0"
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# License conforming to https://spdx.org/licenses/ (use "SPDX: prefix)
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# https://docs.blender.org/manual/en/dev/advanced/extensions/licenses.html
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license = [
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"SPDX:GPL-2.0-or-later",
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]
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copyright = [
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"2018-2024 Isabel Lupiani",
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"2024 Apress",
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]

‎SourceCode/Ch8/extension/projection_painting_helper_4.2/create_and_save_images.py

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# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# GNU GPLv3, 29 June 2007
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#
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# Examples from Ch8 of the book "Blender Scripting with Python" by Isabel Lupiani.
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# Copyright (C) 2024 Isabel Lupiani, Apress.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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# ##### END GPL LICENSE BLOCK #####
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__all__ = (
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"create_image_data_block",
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"save_image_to_file",
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)
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import bpy
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import os
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# if "bpy" in locals():
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# import importlib
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# importlib.reload(split_screen_area)
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# importlib.reload(uv_settings)
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# importlib.reload(view_fit)
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# else:
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# from . import split_screen_area
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# from . import uv_settings
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# from . import view_fit
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from .split_screen_area import split_screen_area
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from .uv_settings import get_image_editor, get_uv_editor
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from .view_fit import get_context_override
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def create_image_data_block(context, name, image_type='UV_GRID', color=(0, 0, 0, 1), image_filepath='', display_image=True, area_ui_type='IMAGE_EDITOR'):
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image_block = None
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if bpy.data.images.find(name) < 0 or not bpy.data.images[name].has_data:
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if os.path.isfile(image_filepath):
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image_block = bpy.data.images.load(image_filepath)
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image_block.name = name
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else:
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bpy.data.images.new(name=name, width=1024, height=1024, alpha=True, float_buffer=False, stereo3d=False)
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image_block = bpy.data.images[name]
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else:
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image_block = bpy.data.images[name]
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image_block.generated_color = color
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image_block.generated_type = image_type
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if not display_image:
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return image_block, None
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[image_editor_area, image_editor_space, uv_editor] = [None, None, None]
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if area_ui_type=='IMAGE_EDITOR':
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[image_editor_area, image_editor_space] = get_image_editor(context, name)
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else:
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[image_editor_area, image_editor_space, uv_editor] = get_uv_editor(context, name)
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if image_editor_space:
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image_editor_space.image = image_block
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else:
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image_editor_area = split_screen_area(context, 'VERTICAL', 0.5, 'IMAGE_EDITOR', area_ui_type, False)
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for s in image_editor_area.spaces:
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if s.type == 'IMAGE_EDITOR':
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image_editor_space = s
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image_editor_space.image = image_block
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if area_ui_type == 'UV':
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uv_editor = s.uv_editor
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break
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image_editor_context_override, override_successful = get_context_override(context, 'IMAGE_EDITOR', 'WINDOW', image_editor_area.x, name)
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if override_successful:
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with bpy.context.temp_override(**image_editor_context_override):
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bpy.ops.image.view_all(fit_view=True)
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return image_block, uv_editor
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def save_image_to_file(context, name, dirpath):
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if bpy.data.images.find(name) < 0:
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print("No image by the name " + name + " exists.")
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return
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image = bpy.data.images[name]
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image.filepath_raw = dirpath + '\\' + name + '.png'
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image.file_format = 'PNG'
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image.save()

‎SourceCode/Ch8/extension/projection_painting_helper_4.2/projection_painting_helper-2.0.0.zip

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‎SourceCode/Ch8/extension/projection_painting_helper_4.2/reference_image.py

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# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# GNU GPLv3, 29 June 2007
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#
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# Examples from Ch8 of the book "Blender Scripting with Python" by Isabel Lupiani.
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# Copyright (C) 2024 Isabel Lupiani, Apress.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
15+
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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# ##### END GPL LICENSE BLOCK #####
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__all__ = (
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"load_image_empty",
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"rename_empty",
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"load_reference_or_background_image"
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)
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import bpy
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from mathutils import Euler
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from math import radians
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# if "bpy" in locals():
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# import importlib
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# importlib.reload(view_fit)
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# else:
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# from . import view_fit
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from .view_fit import get_context_override
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def load_image_empty(context, name, image_file_path, location, rotation_degrees, depth, side, transparency):
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empty = bpy.data.objects.new(name, None)
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empty.empty_display_type = 'IMAGE'
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empty.data = bpy.data.images.load(image_file_path)
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empty.location = location
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empty.rotation_euler = Euler((radians(d) for d in rotation_degrees), 'XYZ')
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empty.empty_image_depth = depth
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empty.empty_image_side = side
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empty.color[3] = transparency
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empty.empty_display_size = 5
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context.collection.objects.link(empty)
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def rename_empty(context, name):
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active_obj = context.view_layer.objects.active
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if active_obj and active_obj.type == 'EMPTY':
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active_obj.name = name
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else:
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num_objs = len(context.view_layer.objects)
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for i in range(num_objs - 1, -1, -1):
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obj = context.view_layer.objects[i]
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if obj.type == 'EMPTY':
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obj.name = name
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context.view_layer.objects.active = obj
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break
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def load_reference_or_background_image(context, filepath, name, location, rotation_degrees=(90,0,0), is_background=False):
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rotation_rads = [radians(d) for d in rotation_degrees]
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context_override = get_context_override(context, 'VIEW_3D', 'WINDOW')
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with bpy.context.temp_override(**context_override):
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bpy.ops.object.empty_image_add(filepath=filepath, relative_path=False, align='VIEW', \
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location=location, rotation=rotation_rads, scale=(1,1,1), background=is_background)
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rename_empty(context, name)
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‎SourceCode/Ch8/extension/projection_painting_helper_4.2/split_screen_area.py

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# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# GNU GPLv3, 29 June 2007
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#
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# Examples from Ch8 of the book "Blender Scripting with Python" by Isabel Lupiani.
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# Copyright (C) 2024 Isabel Lupiani, Apress.
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#
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# This program is free software: you can redistribute it and/or modify
9+
# it under the terms of the GNU General Public License as published by
10+
# the Free Software Foundation, either version 3 of the License, or
11+
# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
14+
# but WITHOUT ANY WARRANTY; without even the implied warranty of
15+
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
19+
# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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# ##### END GPL LICENSE BLOCK #####
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__all__ = (
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"split_screen_area",
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)
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import bpy
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def split_screen_area(context, split_dir, split_ratio, type_of_new_area, ui_type_of_new_area, check_existing=False):
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existing_areas = list(context.screen.areas)
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if check_existing:
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for area in existing_areas:
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# Found an existing area of matching type
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if area.type == type_of_new_area and area.ui_type == ui_type_of_new_area:
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return area
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bpy.ops.screen.area_split(direction=split_dir, factor=split_ratio)
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for area in context.screen.areas:
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if area not in existing_areas:
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area.type = type_of_new_area
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area.ui_type = ui_type_of_new_area
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return area
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