diff options
author | Brendon Murphy <meta.androcto1@gmail.com> | 2011-09-26 15:55:11 +0400 |
---|---|---|
committer | Brendon Murphy <meta.androcto1@gmail.com> | 2011-09-26 15:55:11 +0400 |
commit | ee1db199eb857efd45682c4e2d656828342cc7bc (patch) | |
tree | 095496a75b05083216f5b04fe71436c41c6a052d | |
parent | ba6f7678a6f40e55c94d71be133cb3dfdcdb5bed (diff) |
added object type 'super toroid'
-rw-r--r-- | add_mesh_extra_objects/__init__.py | 4 | ||||
-rw-r--r-- | add_mesh_extra_objects/add_mesh_supertoroid.py | 229 |
2 files changed, 233 insertions, 0 deletions
diff --git a/add_mesh_extra_objects/__init__.py b/add_mesh_extra_objects/__init__.py index d1b8ddcb..ae90a9b6 100644 --- a/add_mesh_extra_objects/__init__.py +++ b/add_mesh_extra_objects/__init__.py @@ -41,6 +41,7 @@ if "bpy" in locals(): imp.reload(add_mesh_gears) imp.reload(add_mesh_3d_function_surface) imp.reload(add_mesh_polysphere) + imp.reload(add_mesh_supertoroid) else: from . import add_mesh_extra_objects from . import add_mesh_twisted_torus @@ -48,6 +49,7 @@ else: from . import add_mesh_gears from . import add_mesh_3d_function_surface from . import add_mesh_polysphere + from . import add_mesh_supertoroid import bpy @@ -68,6 +70,8 @@ class INFO_MT_mesh_extras_add(bpy.types.Menu): text="Twisted Torus") layout.operator("mesh.primitive_polysphere_add", text="Polysphere") + layout.operator("mesh.primitive_supertoroid_add", + text="Supertoroid") class INFO_MT_mesh_gemstones_add(bpy.types.Menu): diff --git a/add_mesh_extra_objects/add_mesh_supertoroid.py b/add_mesh_extra_objects/add_mesh_supertoroid.py new file mode 100644 index 00000000..067ac1e7 --- /dev/null +++ b/add_mesh_extra_objects/add_mesh_supertoroid.py @@ -0,0 +1,229 @@ +''' +bl_addon_info = { + 'name': 'Add Mesh: SuperToroid', + 'author': 'DreamPainter', + 'version': '1', + 'blender': (2, 5, 3), + 'location': 'View3D > Add > Mesh > SuperToroid', + 'description': 'Add a SuperToroid mesh', + 'url': 'http://wiki.blender.org/index.php/Extensions:2.5/Py/' \ + 'Scripts/Add_Mesh/', # no url + 'category': 'Add Mesh'} +''' +import bpy +from bpy.props import FloatProperty,BoolProperty,IntProperty +from math import pi, cos, sin +from mathutils import Vector +from bpy_extras import object_utils + +# 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): + + # 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() + + from bpy_extras import object_utils + return 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 + +def power(a,b): + if a < 0: + return -((-a)**b) + return a**b + +def supertoroid(R,r,u,v,n1,n2): + """ + R = big radius + r = small radius + u = lateral segmentation + v = radial segmentation + n1 = value determines the shape of the torus + n2 = value determines the shape of the cross-section + """ + + # create the necessary constants + a = 2*pi/u + b = 2*pi/v + + verts = [] + faces = [] + + # create each cross-section by calculating each vector on the + # the wannabe circle + # x = (cos(theta)**n1)*(R+r*(cos(phi)**n2)) + # y = (sin(theta)**n1)*(R+r*(cos(phi)**n2)) + # z = (r*sin(phi)**n2) + # with theta and phi rangeing from 0 to 2pi + for i in range(u): + s = power(sin(i*a),n1) + c = power(cos(i*a),n1) + for j in range(v): + c2 = R+r*power(cos(j*b),n2) + s2 = r*power(sin(j*b),n2) + verts.append(Vector((c*c2,s*c2,s2))) + # bridge the last circle with the previous circle + if i > 0: # but not for the first circle, 'cus there's no previous before the first + f = createFaces(range((i-1)*v,i*v),range(i*v,(i+1)*v),closed = True) + faces.extend(f) + # bridge the last circle with the first + f = createFaces(range((u-1)*v,u*v),range(v),closed=True) + faces.extend(f) + + return verts, faces + +class add_supertoroid(bpy.types.Operator): + """Add a SuperToroid""" + bl_idname = "mesh.primitive_supertoroid_add" + bl_label = "Add SuperToroid" + bl_description = "Create a SuperToroid" + bl_options = {'REGISTER', 'UNDO'} + + R = FloatProperty(name = "big radius", + description = "The radius inside the tube", + default = 1.0, min = 0.01, max = 100.0) + r = FloatProperty(name = "small radius", + description = "The radius of the tube", + default = 0.3, min = 0.01, max = 100.0) + u = IntProperty(name = "U-segments", + description = "radial segmentation", + default = 16, min = 3, max = 265) + v = IntProperty(name = "V-segments", + description = "lateral segmentation", + default = 8, min = 3, max = 265) + n1 = FloatProperty(name = "Ring manipulator", + description = "Manipulates the shape of the Ring", + default = 1.0, min = 0.01, max = 100.0) + n2 = FloatProperty(name = "Cross manipulator", + description = "Manipulates the shape of the cross-section", + default = 1.0, min = 0.01, max = 100.0) + ie = BoolProperty(name = "Use Int.+Ext. radii", + description = "Use internal and external radii", + default = False) + edit = BoolProperty(name="", + description="", + default=False, + options={'HIDDEN'}) + + def execute(self,context): + props = self.properties + + # check how the radii properties must be used + if props.ie: + rad1 = (props.R+props.r)/2 + rad2 = (props.R-props.r)/2 + # for consistency in the mesh, ie no crossing faces, make the largest of the two + # the outer radius + if rad2 > rad1: + [rad1,rad2] = [rad2,rad1] + else: + rad1 = props.R + rad2 = props.r + # again for consistency, make the radius in the tube, + # at least as big as the radius of the tube + if rad2 > rad1: + rad1 = rad2 + + # create mesh + verts,faces = supertoroid(rad1, + rad2, + props.u, + props.v, + props.n1, + props.n2) + + # create the object + obj = create_mesh_object(context, verts, [], faces, "SuperToroid") + + + return {'FINISHED'} +''' +menu_func = lambda self, context: self.layout.operator(add_supertoroid.bl_idname, + text = "SuperToroid", icon = 'PLUGIN') + +def register(): + bpy.types.register(add_supertoroid) + bpy.types.INFO_MT_mesh_add.append(menu_func) + +def unregister(): + bpy.types.unregister(add_supertoroid) + bpy.types.INFO_MT_mesh_add.remove(menu_func) + +if __name__ == "__main__": + register() +'''
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