Theeth's mathutils patch

- adds intersections for lines
- triangle area
- tracking quaternion from vector
- some helpful normal calculators

source/blender/python/api2_2x/doc/Mathutils.py

@@ -39,6 +39,81 @@ def Rand (high = 1, low = 0):
   @param low: The lower range.
   """
 
+def Intersect(vec1, vec2, vec3, ray, orig, clip=1):
+  """
+  Return the intersection between a ray and a triangle, if possible, return None otherwise.
+  @type vec1: Vector object.
+  @param vec1: A 3d vector, one corner of the triangle.
+  @type vec2: Vector object.
+  @param vec2: A 3d vector, one corner of the triangle.
+  @type vec3: Vector object.
+  @param vec3: A 3d vector, one corner of the triangle.
+  @type ray: Vector object.
+  @param ray: A 3d vector, the orientation of the ray.
+  @type orig: Vector object.
+  @param orig: A 3d vector, the origin of the ray.
+  @type clip: integer
+  @param clip: if 0, don't restrict the intersection to the area of the triangle, use the infinite plane defined by the triangle.
+  @rtype: Vector object
+  @return: The intersection between a ray and a triangle, if possible, None otherwise.
+  """
+
+def TriangleArea(vec1, vec2, vec3):
+  """
+  Return the area size of the 2D or 3D triangle defined.
+  @type vec1: Vector object.
+  @param vec1: A 2d or 3d vector, one corner of the triangle.
+  @type vec2: Vector object.
+  @param vec2: A 2d or 3d vector, one corner of the triangle.
+  @type vec3: Vector object.
+  @param vec3: A 2d or 3d vector, one corner of the triangle.
+  @rtype: float
+  @return: The area size of the 2D or 3D triangle defined.
+  """
+
+def TriangleNormal(vec1, vec2, vec3):
+  """
+  Return the normal of the 3D triangle defined.
+  @type vec1: Vector object.
+  @param vec1: A 3d vector, one corner of the triangle.
+  @type vec2: Vector object.
+  @param vec2: A 3d vector, one corner of the triangle.
+  @type vec3: Vector object.
+  @param vec3: A 3d vector, one corner of the triangle.
+  @rtype: float
+  @return: The normal of the 3D triangle defined.
+  """
+
+def QuadNormal(vec1, vec2, vec3, vec4):
+  """
+  Return the normal of the 3D quad defined.
+  @type vec1: Vector object.
+  @param vec1: A 3d vector, the first vertex of the quad.
+  @type vec2: Vector object.
+  @param vec2: A 3d vector, the second vertex of the quad.
+  @type vec3: Vector object.
+  @param vec3: A 3d vector, the third vertex of the quad.
+  @type vec4: Vector object.
+  @param vec4: A 3d vector, the fourth vertex of the quad.
+  @rtype: float
+  @return: The normal of the 3D quad defined.
+  """
+
+def LineIntersect(vec1, vec2, vec3, vec4):
+  """
+  Return a tuple with the points on each line respectively closest to the other (when both lines intersect, both vector hold the same value).
+  @type vec1: Vector object.
+  @param vec1: A 3d vector, one point on the first line.
+  @type vec2: Vector object.
+  @param vec2: A 3d vector, another point on the first line.
+  @type vec3: Vector object.
+  @param vec3: A 3d vector, one point on the second line.
+  @type vec4: Vector object.
+  @param vec4: A 3d vector, another point on the second line.
+  @rtype: (Vector object, Vector object)
+  @return: A tuple with the points on each line respectively closest to the other.
+  """
+
 def CopyVec(vector):
   """
   Create a copy of the Vector object.
@@ -356,6 +431,26 @@ class Vector:
     Resize the vector to 4d.
     """
 
+  def toTrackQuat(track, up):
+    """
+    Return a quaternion rotation from the vector and the track and up axis.
+    @type track: String.
+    @param track: Possible values:
+		   - "x - x-axis up"
+		   - "y - y-axis up"
+		   - "z - z-axis up"
+		   - "-x - negative x-axis up"
+		   - "-y - negative y-axis up"
+		   - "-z - negative z-axis up"
+    @type up: String.
+    @param up: Possible values:
+		   - "x - x-axis up"
+		   - "y - y-axis up"
+		   - "z - z-axis up"
+    @rtype: Quaternion
+    @return: Return a quaternion rotation from the vector and the track and up axis.
+    """
+
 class Euler:
   """
   The Euler object