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2018-06-28T19:47:37Z

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2016-06-20T09:47:50Z

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{{ScriptInfo
|name=Convert Mesh to Armature
|tooltip=Generate an armature with a single bone controlling each face
|menu=3D View Panel > Object
|version=0.3
|blender=2.6.3
|author=[[User:Addam|Addam Dominec (Emu)]]
|license=GPL
|exe=object_convert_to_armature.py
|modules=mathutils
|data=
|deps=itertools, functools, math
|download=https://github.com/addam/Export-Paper-Model-from-Blender/
}}

=== Purpose ===

The script generates an armature controlling each face of the given mesh. When used along with the [[Extensions:2.5/Py/Scripts/Import-Export/Paper_Model|Paper Model Export]] script, it allows the user to animate an unfolding net. It can be used on its own too.

=== Installation ===

* Download the file from [https://raw.github.com/addam/Export-Paper-Model-from-Blender/master/object_convert_to_armature.py Git repository]
* Launch Blender. In User Preferences ({{Shortcut/Keypress|ctrl}}{{Shortcut/Keypress|alt}}{{Shortcut/Keypress|u}}), section ''Add-Ons'', click the ''Install Add-On'' button below. Choose the file you downloaded. Then find an add-on called ''Object: Convert Mesh to Armature'' and enable it.

=== Usage ===

The script is not finished and therefore not user-friendly. In order to work properly, the mesh to be converted must have a tree-like structure. That can be achieved by this procedure:
* Install the [[Extensions:2.5/Py/Scripts/Import-Export/Paper_Model|Paper Model Export]] script.
* Select the mesh object to be converted so that it is the active object (outlined in yellow).
* Run the ''Unfold'' operator (can be found in 3D View toolbox {{Shortcut/Keypress|t}} or in the Spacebar menu).
* Switch to Edit Mode and to Edge selection mode ({{Shortcut/Keypress|tab}}, {{Shortcut/Keypress|ctrl}}{{Shortcut/Keypress|tab}} → {{Shortcut/Keypress|e}}).
* Select any edge that is marked as Seam (shows in red).
* Use ''Select Similar'' → ''Seam'' ({{Shortcut/Keypress|shift}}{{Shortcut/Keypress|g}} → {{Shortcut/Keypress|s}}).
* Run the ''Edge Split'' operator. (If you have an older version of Blender, you might have to make a round trip using the ''Edge Split'' modifier.)
* Optionally, select a face where the unfolding should start from.
* Finally, run the ''Convert to Armature'' operator (3D View menu → ''Object'' → ''Convert to Armature''; or find it in the Spacebar menu)

The script starts to create an armature from the ''active'' face and spreads bones to all connected faces. If the faces are connected in a wrong way, a warning message shows up.

The script can handle polygons of 4 or more vertices. The limitation to keep in mind is that each two faces should be connected by a single edge only.

If the model already has a tree-like structure, you do not have to use the Paper Model Export script. In other cases you may wish to select the cuts by hand and use the ''Edge Split'' operator only.

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Extensions:2.6/Py/Scripts/Object/Convert to Armature - 版の履歴

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wiki>Addam: renamed button

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