Initial setup for addon

.gitignore

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+
+# Created by https://www.toptal.com/developers/gitignore/api/python,visualstudiocode
+# Edit at https://www.toptal.com/developers/gitignore?templates=python,visualstudiocode
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+pytestdebug.log
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+doc/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+pythonenv*
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# profiling data
+.prof
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/tasks.json
+!.vscode/launch.json
+*.code-workspace
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+.ionide
+
+# End of https://www.toptal.com/developers/gitignore/api/python,visualstudiocode

README.md

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+# Measures Addon For Blender
+
+<div style="text-align: center">
+  <img src="screenshots/headerimage.jpg" width="80%">
+</div>
+
+This Blender addon is intended to accelearate the creation of measures for an Avatar.
+
+## Running locally
+The plugin requires the following tools to run:
+
+- [Blender 2.9+](https://www.blender.org/download/)
+- [Visual Studio Code](https://code.visualstudio.com/)
+- [Python for Visual Studio Code](https://marketplace.visualstudio.com/items?itemName=ms-python.python)
+- [Blender Development](https://marketplace.visualstudio.com/items?itemName=JacquesLucke.blender-development)
+
+Follow the instructions of the Blender Development plugin setup to connect to your instance of Blender.
+
+## Installing in Blender
+If you simply want to test how the addon works, get the latest version of the addon from the releases page. 
+
+Inside Blender go to: `Edit > Preferences`, go the the `Add-ons` section in the left menu, hit the `Install...` button and select the file you donwloaded.
+
+Now at the top of the section in the search box if you type `Measures` the plugin should appear.
+
+<div style="text-align: center">
+  <img src="screenshots/plugininstalled.jpg" width="80%">
+</div>
+
+## Useful Links:
+- [Blender Python API docs](https://docs.blender.org/api/current/)
+- [Blender Python Tutorial, Youtube series by Darkfall](https://www.youtube.com/watch?v=cyt0O7saU4Q&list=PLFtLHTf5bnym_wk4DcYIMq1DkjqB7kDb-&index=1)
+- [Blender Python Addon Development with ST3, Udemy Course](https://www.udemy.com/course/st3-addon-course/)
+
+More coming soon...

__init__.py

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+bl_info = {
+    "name": "Measures Library",
+    "author": "Albert Rodriguez",
+    "description": "Tools to take measures for Avatar",
+    "blender": (2, 80, 0),
+    "version": (0, 0, 1),
+    "location": "View3D > Toolshelf",
+    "warning": "",
+    "category": "Add measures",
+    "wiki_url": ""
+}
+
+
+def register():
+    from .addon.register import register_addon
+    register_addon()
+
+
+def unregister():
+    from .addon.register import unregister_addon
+    unregister_addon()

addon/menu/__init__.py

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+# import bpy
+
+# from .main_menu import GEM_MT_Main_Menu
+
+# TODO: Add menus here when required
+classes = []
+
+
+def register_menus():
+    from bpy.utils import register_class
+    for cls in classes:
+        register_class(cls)
+
+
+def unregister_menus():
+    from bpy.utils import unregister_class
+    for cls in reversed(classes):
+        unregister_class(cls)

addon/operator/__init__.py

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+from .measures_operator import MEASURES_OT
+
+classes = (
+    MEASURES_OT,
+)
+
+
+def register_operators():
+    from bpy.utils import register_class
+    for cls in classes:
+        register_class(cls)
+
+
+def unregister_operators():
+    from bpy.utils import unregister_class
+    for cls in reversed(classes):
+        unregister_class(cls)

addon/operator/measures_operator.py

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+import bpy
+import bmesh
+
+
+class MEASURES_OT(bpy.types.Operator):
+    bl_label = "Create Measure"
+    bl_idname = 'measures.create'
+
+    def execute(self, context):
+        print('Measures Operator executed')
+
+        dg = context.evaluated_depsgraph_get()
+        scene = context.scene
+        ob = scene.objects.get("Avatar")
+        plane = scene.objects.get("Plane")
+
+        if plane and ob:
+            pmw = plane.matrix_world
+            face = plane.data.polygons[0]
+            plane_co = pmw @ face.center
+            plane_no = pmw @ (face.center + face.normal) - plane_co
+            bm = bmesh.new()
+            bm.from_object(ob, dg)
+            bmesh.ops.transform(bm,
+                verts=bm.verts,
+                matrix=ob.matrix_world)
+
+            x = bmesh.ops.bisect_plane(bm,
+                geom=bm.faces[:] + bm.edges[:] + bm.verts[:],
+                clear_inner=True,
+                clear_outer=True,
+                plane_co=plane_co,
+                plane_no=plane_no
+                )
+
+        # new object
+        me = bpy.data.meshes.new("Bisect")
+        bm.to_mesh(me)
+        ob = bpy.data.objects.new("Bisect", me)
+        context.collection.objects.link(ob)
+
+        return {'FINISHED'}

addon/panel/__init__.py

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+from .measures_panel import MeasuresMainPanel
+
+classes = [MeasuresMainPanel]
+
+
+def register_panels():
+    from bpy.utils import register_class
+    for cls in classes:
+        register_class(cls)
+
+
+def unregister_panels():
+    from bpy.utils import unregister_class
+    for cls in reversed(classes):
+        unregister_class(cls)

addon/panel/measures_panel.py

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+import bpy
+
+
+class MeasuresMainPanel(bpy.types.Panel):
+    """Creates a Panel in the 3D view for Measures"""
+    bl_label = "Measures Library"
+    bl_idname = "MEASURES_PT_MAINPANEL"
+    bl_space_type = 'VIEW_3D'
+    bl_region_type = 'UI'
+    bl_category = 'Measures Library'
+    # bl_options = {'DEFAULT_CLOSED'}
+    # bl_parent_id = 'PT_PARENTPANEL' -> you need to give id aka bl_idname
+
+    def draw(self, context):
+        layout = self.layout
+        layout.scale_y = 1.2
+
+        row = layout.row()
+        row.label(text="Adjust the plane to the Avatar", icon="MOD_TINT")
+
+        plane = bpy.context.scene.objects.get("Plane")
+        row = layout.row()
+        col = layout.column()
+        col.prop(plane, "location")
+
+        # TODO:
+        # https://blender.stackexchange.com/questions/123044/how-to-scale-an-object-via-a-slider-in-python
+        row = layout.row()
+        col = layout.column()
+        col.prop(plane, "scale")
+
+        row = layout.row()
+        col = layout.column()
+        col.prop(plane, "rotation_euler")
+
+        row = layout.row()
+        row.operator('measures.create')
+
+        # row = layout.row()
+        # row.label(text="Active object is: " + obj.name)
+        # row = layout.row()
+        # row.prop(obj, "name")
+
+        # row = layout.row()
+        # row.operator("mesh.primitive_cube_add")

addon/property/__init__.py

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+# TODO: Register properties