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# <pep8 compliant> |
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# This program is free software; you can redistribute it and/or |
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# modify it under the terms of the GNU General Public License |
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# as published by the Free Software Foundation; either version 2 |
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# of the License, or (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, write to the Free Software Foundation, |
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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|
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import bpy |
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# https://www.youtube.com/watch?v=mN3n9b98HMk was helpful, thanks! |
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|
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# CHANGELOG |
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# v 1.0 May 2024 - Positive Cube |
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# ☒ Initial Add-on, add positive and negative cube. |
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# v 1.1 March 2026 |
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# ☒ Simplified, condensed code |
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# ☒ Changed selection functionality to deselect all before adding geometry |
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|
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bl_info = { |
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"name": "Add Positive Cube", |
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"description": "Adds a cube with its origin at the corner.", |
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"author": "Jeff Lange @jefftml", |
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"version": (1, 1), |
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"blender": (2, 80, 0), |
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"location": "View3D > Add > Mesh", |
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"category": "Add Mesh", |
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} |
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|
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FACES = [(3, 2, 1, 0), (0, 1, 5, 4), (1, 2, 6, 5), |
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(2, 3, 7, 6), (3, 0, 4, 7), (4, 5, 6, 7)] |
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|
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VERTS = [(0, 0, 0), (1, 0, 0), (1, 1, 0), (0, 1, 0), |
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(0, 0, 1), (1, 0, 1), (1, 1, 1), (0, 1, 1)] |
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|
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|
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def add_corner_cube(context, s=1): |
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v = [(s * x, s * y, s * z) for x, y, z in VERTS] |
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faces = [f[::-1] for f in FACES] if s < 0 else FACES |
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mesh = bpy.data.meshes.new("cube") |
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mesh.from_pydata(v, [], faces) |
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obj = bpy.data.objects.new( |
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("Positive" if s > 0 else "Negative") + " Cube", mesh) |
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context.collection.objects.link(obj) |
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bpy.ops.object.select_all(action='DESELECT') |
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context.view_layer.objects.active = obj |
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obj.select_set(True) |
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obj.matrix_world = context.scene.cursor.matrix |
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return {'FINISHED'} |
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|
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def make_op(label, idname, s): |
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class Op(bpy.types.Operator): |
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bl_idname, bl_label, bl_options = idname, label, {'REGISTER', 'UNDO'} |
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def execute(self, ctx): return add_corner_cube(ctx, s) |
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Op.__name__ = idname.split('.')[1] |
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return Op |
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|
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|
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CLASSES = [make_op("Positive Cube", "mesh.positive_cube", 1), |
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make_op("Negative Cube", "mesh.negative_cube", -1)] |
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|
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|
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def menu_func(self, context): |
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self.layout.operator(CLASSES[0].bl_idname, icon='MESH_CUBE') |
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self.layout.operator(CLASSES[1].bl_idname, icon='CUBE') |
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|
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|
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def register(): |
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[bpy.utils.register_class(c) for c in CLASSES] |
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bpy.types.VIEW3D_MT_mesh_add.append(menu_func) |
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|
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def unregister(): |
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[bpy.utils.unregister_class(c) for c in CLASSES] |
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bpy.types.VIEW3D_MT_mesh_add.remove(menu_func) |
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if __name__ == "__main__": |
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register() |
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|