1 files changed, 77 insertions, 0 deletions
diff --git a/modules/misc_utils.py b/modules/misc_utils.py
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+++ b/modules/misc_utils.py
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+# -*- coding: utf-8 -*-
+# ##### 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 #####
+
+'''
+    misc_util.py
+    
+    Miscellaneous helper methods.
+
+
+
+'''
+
+
+
+import bpy
+from mathutils import Vector, Matrix
+
+
+
+class BlenderFake:
+
+    @classmethod
+    def forceUpdate(cls):
+        if bpy.context.mode == 'EDIT_MESH':
+            bpy.ops.object.mode_set(mode='OBJECT')
+            bpy.ops.object.mode_set(mode='EDIT')
+
+    @classmethod
+    def forceRedraw(cls):
+        CursorAccess.setCursor(CursorAccess.getCursor())
+
+
+
+# Converts 3D coordinates in a 3DRegion
+# into 2D screen coordinates for that region.
+# Borrowed from Buerbaum Martin (Pontiac)
+def region3d_get_2d_coordinates(context, loc_3d):
+    # Get screen information
+    mid_x = context.region.width / 2.0
+    mid_y = context.region.height / 2.0
+    width = context.region.width
+    height = context.region.height
+
+    # Get matrices
+    view_mat = context.space_data.region_3d.perspective_matrix
+    total_mat = view_mat
+
+    # order is important
+    vec = Vector((loc_3d[0], loc_3d[1], loc_3d[2], 1.0)) * total_mat
+
+    # dehomogenise
+    vec = Vector((
+        vec[0] / vec[3],
+        vec[1] / vec[3],
+        vec[2] / vec[3]))
+
+    x = int(mid_x + vec[0] * width / 2.0)
+    y = int(mid_y + vec[1] * height / 2.0)
+    z = vec[2]
+
+    return Vector((x, y, z))