new operator directory, move some scripts from io

release/scripts/op/add_mesh_torus.py

@@ -0,0 +1,139 @@
+# ##### 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+# <pep8-80 compliant>
+import bpy
+import Mathutils
+from math import cos, sin, pi
+
+
+def add_torus(major_rad, minor_rad, major_seg, minor_seg):
+    Vector = Mathutils.Vector
+    Quaternion = Mathutils.Quaternion
+
+    PI_2 = pi * 2
+    z_axis = (0, 0, 1)
+
+    verts = []
+    faces = []
+    i1 = 0
+    tot_verts = major_seg * minor_seg
+    for major_index in range(major_seg):
+        quat = Quaternion(z_axis, (major_index / major_seg) * PI_2)
+
+        for minor_index in range(minor_seg):
+            angle = 2 * pi * minor_index / minor_seg
+
+            vec = Vector(major_rad + (cos(angle) * minor_rad), 0.0,
+                        (sin(angle) * minor_rad)) * quat
+
+            verts.extend([vec.x, vec.y, vec.z])
+
+            if minor_index + 1 == minor_seg:
+                i2 = (major_index) * minor_seg
+                i3 = i1 + minor_seg
+                i4 = i2 + minor_seg
+
+            else:
+                i2 = i1 + 1
+                i3 = i1 + minor_seg
+                i4 = i3 + 1
+
+            if i2 >= tot_verts:
+                i2 = i2 - tot_verts
+            if i3 >= tot_verts:
+                i3 = i3 - tot_verts
+            if i4 >= tot_verts:
+                i4 = i4 - tot_verts
+
+            # stupid eekadoodle
+            if i2:
+                faces.extend([i1, i3, i4, i2])
+            else:
+                faces.extend([i2, i1, i3, i4])
+
+            i1 += 1
+
+    return verts, faces
+
+from bpy.props import *
+
+
+class AddTorus(bpy.types.Operator):
+    '''Add a torus mesh.'''
+    bl_idname = "mesh.primitive_torus_add"
+    bl_label = "Add Torus"
+    bl_register = True
+    bl_undo = True
+
+    major_radius = FloatProperty(name="Major Radius",
+            description="Number of segments for the main ring of the torus",
+            default=1.0, min=0.01, max=100.0)
+    minor_radius = FloatProperty(name="Minor Radius",
+            description="Number of segments for the minor ring of the torus",
+            default=0.25, min=0.01, max=100.0)
+    major_segments = IntProperty(name="Major Segments",
+            description="Number of segments for the main ring of the torus",
+            default=48, min=3, max=256)
+    minor_segments = IntProperty(name="Minor Segments",
+            description="Number of segments for the minor ring of the torus",
+            default=16, min=3, max=256)
+
+    def execute(self, context):
+
+        verts_loc, faces = add_torus(self.major_radius,
+                                    self.minor_radius,
+                                    self.major_segments,
+                                    self.minor_segments)
+
+        mesh = bpy.data.add_mesh("Torus")
+
+        mesh.add_geometry(int(len(verts_loc) / 3), 0, int(len(faces) / 4))
+        mesh.verts.foreach_set("co", verts_loc)
+        mesh.faces.foreach_set("verts_raw", faces)
+
+        scene = context.scene
+
+        # ugh
+        for ob in scene.objects:
+            ob.selected = False
+
+        mesh.update()
+        ob_new = bpy.data.add_object('MESH', "Torus")
+        ob_new.data = mesh
+        scene.add_object(ob_new)
+        scene.objects.active = ob_new
+        ob_new.selected = True
+
+        ob_new.location = tuple(context.scene.cursor_location)
+
+        return ('FINISHED',)
+
+# Register the operator
+bpy.ops.add(AddTorus)
+
+# Add to a menu
+import dynamic_menu
+
+menu_func = (lambda self, context: self.layout.itemO(AddTorus.bl_idname,
+                                        text="Torus", icon='ICON_MESH_DONUT'))
+
+menu_item = dynamic_menu.add(bpy.types.INFO_MT_mesh_add, menu_func)
+
+if __name__ == "__main__":
+    bpy.ops.mesh.primitive_torus_add()