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Diffstat (limited to 'add_mesh_gemstones.py')
| -rw-r--r-- | add_mesh_gemstones.py | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/add_mesh_gemstones.py b/add_mesh_gemstones.py new file mode 100644 index 00000000..aa00d822 --- /dev/null +++ b/add_mesh_gemstones.py @@ -0,0 +1,372 @@ +# ##### 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 ##### + +bl_info = { + "name": "Gemstones", + "author": "Pontiac, Fourmadmen, Dreampainter", + "version": (0, 4), + "blender": (2, 5, 7), + "api": 35853, + "location": "View3D > Add > Mesh > Gemstones", + "description": "Adds various gemstone (Diamond & Gem) meshes.", + "warning": "", + "wiki_url": "http://wiki.blender.org/index.php/Extensions:2.5/Py/"\ + "Scripts/Add_Mesh/Add_Gemstones", + "tracker_url": "https://projects.blender.org/tracker/index.php?"\ + "func=detail&aid=21432", + "category": "Add Mesh"} + +import bpy +from mathutils import * +from math import * +from bpy.props import * + +# Create a new mesh (object) from verts/edges/faces. +# verts/edges/faces ... List of vertices/edges/faces for the +# new mesh (as used in from_pydata). +# name ... Name of the new mesh (& object). +def create_mesh_object(context, verts, edges, faces, name): + scene = context.scene + obj_act = scene.objects.active + + # Create new mesh + mesh = bpy.data.meshes.new(name) + + # Make a mesh from a list of verts/edges/faces. + mesh.from_pydata(verts, edges, faces) + + # Update mesh geometry after adding stuff. + mesh.update() + + import add_object_utils + return add_object_utils.object_data_add(context, mesh, operator=None) + + +# A very simple "bridge" tool. +# Connects two equally long vertex rows with faces. +# Returns a list of the new faces (list of lists) +# +# vertIdx1 ... First vertex list (list of vertex indices). +# vertIdx2 ... Second vertex list (list of vertex indices). +# closed ... Creates a loop (first & last are closed). +# flipped ... Invert the normal of the face(s). +# +# Note: You can set vertIdx1 to a single vertex index to create +# a fan/star of faces. +# Note: If both vertex idx list are the same length they have +# to have at least 2 vertices. +def createFaces(vertIdx1, vertIdx2, closed=False, flipped=False): + faces = [] + + if not vertIdx1 or not vertIdx2: + return None + + if len(vertIdx1) < 2 and len(vertIdx2) < 2: + return None + + fan = False + if (len(vertIdx1) != len(vertIdx2)): + if (len(vertIdx1) == 1 and len(vertIdx2) > 1): + fan = True + else: + return None + + total = len(vertIdx2) + + if closed: + # Bridge the start with the end. + if flipped: + face = [ + vertIdx1[0], + vertIdx2[0], + vertIdx2[total - 1]] + if not fan: + face.append(vertIdx1[total - 1]) + faces.append(face) + + else: + face = [vertIdx2[0], vertIdx1[0]] + if not fan: + face.append(vertIdx1[total - 1]) + face.append(vertIdx2[total - 1]) + faces.append(face) + + # Bridge the rest of the faces. + for num in range(total - 1): + if flipped: + if fan: + face = [vertIdx2[num], vertIdx1[0], vertIdx2[num + 1]] + else: + face = [vertIdx2[num], vertIdx1[num], + vertIdx1[num + 1], vertIdx2[num + 1]] + faces.append(face) + else: + if fan: + face = [vertIdx1[0], vertIdx2[num], vertIdx2[num + 1]] + else: + face = [vertIdx1[num], vertIdx2[num], + vertIdx2[num + 1], vertIdx1[num + 1]] + faces.append(face) + + return faces + + +# @todo Clean up vertex&face creation process a bit. +def add_gem(r1, r2, seg, h1, h2): + """ + r1 = pavilion radius + r2 = crown radius + seg = number of segments + h1 = pavilion height + h2 = crown height + Generates the vertices and faces of the gem + """ + + verts = [] + + a = 2.0 * pi / seg # Angle between segments + offset = a / 2.0 # Middle between segments + + r3 = ((r1 + r2) / 2.0) / cos(offset) # Middle of crown + r4 = (r1 / 2.0) / cos(offset) # Middle of pavilion + h3 = h2 / 2.0 # Middle of crown height + h4 = -h1 / 2.0 # Middle of pavilion height + + # Tip + vert_tip = len(verts) + verts.append(Vector((0.0, 0.0, -h1))) + + # Middle vertex of the flat side (crown) + vert_flat = len(verts) + verts.append(Vector((0.0, 0.0, h2))) + + edgeloop_flat = [] + for i in range(seg): + s1 = sin(i * a) + s2 = sin(offset + i * a) + c1 = cos(i * a) + c2 = cos(offset + i * a) + + verts.append((r4 * s1, r4 * c1, h4)) # Middle of pavilion + verts.append((r1 * s2, r1 * c2, 0.0)) # Pavilion + verts.append((r3 * s1, r3 * c1, h3)) # Middle crown + edgeloop_flat.append(len(verts)) + verts.append((r2 * s2, r2 * c2, h2)) # Crown + + faces = [] + + for index in range(seg): + i = index * 4 + j = ((index + 1) % seg) * 4 + + faces.append([j + 2, vert_tip, i + 2, i + 3]) # Tip -> Middle of pav + faces.append([j + 2, i + 3, j + 3]) # Middle of pav -> pav + faces.append([j + 3, i + 3, j + 4]) # Pav -> Middle crown + faces.append([j + 4, i + 3, i + 4, i + 5]) # Crown quads + faces.append([j + 4, i + 5, j + 5]) # Middle crown -> crown + + faces_flat = createFaces([vert_flat], edgeloop_flat, closed=True) + faces.extend(faces_flat) + + return verts, faces + + +def add_diamond(segments, girdle_radius, table_radius, + crown_height, pavilion_height): + + PI_2 = pi * 2.0 + z_axis = (0.0, 0.0, -1.0) + + verts = [] + faces = [] + + height_flat = crown_height + height_middle = 0.0 + height_tip = -pavilion_height + + # Middle vertex of the flat side (crown) + vert_flat = len(verts) + verts.append(Vector((0.0, 0.0, height_flat))) + + # Tip + vert_tip = len(verts) + verts.append(Vector((0.0, 0.0, height_tip))) + + verts_flat = [] + verts_girdle = [] + + for index in range(segments): + quat = Quaternion(z_axis, (index / segments) * PI_2) + + angle = PI_2 * index / segments + + # Row for flat side + verts_flat.append(len(verts)) + vec = Vector((table_radius, 0.0, height_flat)) * quat + verts.append(vec) + + # Row for the middle/girdle + verts_girdle.append(len(verts)) + vec = Vector((girdle_radius, 0.0, height_middle)) * quat + verts.append(vec) + + # Flat face + faces_flat = createFaces([vert_flat], verts_flat, closed=True, + flipped=True) + # Side face + faces_side = createFaces(verts_girdle, verts_flat, closed=True) + # Tip faces + faces_tip = createFaces([vert_tip], verts_girdle, closed=True) + + faces.extend(faces_tip) + faces.extend(faces_side) + faces.extend(faces_flat) + + return verts, faces + + +class AddDiamond(bpy.types.Operator): + '''Add a diamond mesh.''' + bl_idname = "mesh.primitive_diamond_add" + bl_label = "Add Diamond" + bl_options = {'REGISTER', 'UNDO'} + + segments = IntProperty(name="Segments", + description="Number of segments for the diamond", + min=3, + max=256, + default=32) + girdle_radius = FloatProperty(name="Girdle Radius", + description="Girdle radius of the diamond", + min=0.01, + max=9999.0, + default=1.0) + table_radius = FloatProperty(name="Table Radius", + description="Girdle radius of the diamond", + min=0.01, + max=9999.0, + default=0.6) + crown_height = FloatProperty(name="Crown Height", + description="Crown height of the diamond", + min=0.01, + max=9999.0, + default=0.35) + pavilion_height = FloatProperty(name="Pavilion Height", + description="Pavilion height of the diamond", + min=0.01, + max=9999.0, + default=0.8) + + def execute(self, context): + verts, faces = add_diamond(self.segments, + self.girdle_radius, + self.table_radius, + self.crown_height, + self.pavilion_height) + + obj = create_mesh_object(context, verts, [], faces, "Diamond") + + return {'FINISHED'} + + +class AddGem(bpy.types.Operator): + """Add a diamond gem""" + bl_idname = "mesh.primitive_gem_add" + bl_label = "Add Gem" + bl_description = "Create an offset faceted gem." + bl_options = {'REGISTER', 'UNDO'} + + segments = IntProperty(name="Segments", + description="Longitudial segmentation", + min=3, + max=265, + default=8,) + pavilion_radius = FloatProperty(name="Radius", + description="Radius of the gem", + min=0.01, + max=9999.0, + default=1.0) + crown_radius = FloatProperty(name="Table Radius", + description="Radius of the table(top).", + min=0.01, + max=9999.0, + default=0.6) + crown_height = FloatProperty(name="Table height", + description="Height of the top half.", + min=0.01, + max=9999.0, + default=0.35) + pavilion_height = FloatProperty(name="Pavilion height", + description="Height of bottom half.", + min=0.01, + max=9999.0, + default=0.8) + + def execute(self, context): + + # create mesh + verts, faces = add_gem( + self.pavilion_radius, + self.crown_radius, + self.segments, + self.pavilion_height, + self.crown_height) + + obj = create_mesh_object(context, verts, [], faces, "Gem") + + return {'FINISHED'} + + +class INFO_MT_mesh_gemstones_add(bpy.types.Menu): + # Define the "Gemstones" menu + bl_idname = "INFO_MT_mesh_gemstones_add" + bl_label = "Gemstones" + + def draw(self, context): + layout = self.layout + layout.operator_context = 'INVOKE_REGION_WIN' + layout.operator("mesh.primitive_diamond_add", + text="Diamond") + layout.operator("mesh.primitive_gem_add", + text="Gem") + + +# Register all operators and panels + + +# Define "Gemstones" menu +def menu_func(self, context): + self.layout.menu("INFO_MT_mesh_gemstones_add", icon="PLUGIN") + + +def register(): + bpy.utils.register_module(__name__) + + # Add "Gemstones" menu to the "Add Mesh" menu + bpy.types.INFO_MT_mesh_add.append(menu_func) + + +def unregister(): + bpy.utils.unregister_module(__name__) + + # Remove "Gemstones" menu from the "Add Mesh" menu. + bpy.types.INFO_MT_mesh_add.remove(menu_func) + + +if __name__ == "__main__": + register() |