PyGeo: a dynamic geometry toolkit

planes

plane oriented in space

f Plane() ...

factory function returns instance a class rperesenting a 2 dimensional surface spanned by two linearly independent vectors

constructors:
Plane (line1,line2,point )
plane through the given point and parallel to the given 2 lines.
Plane (point1,point2,point3 )
plane through the 3 given points
Plane (sphere,point )
plane polar to the given point with respect to the given sphere
Plane (plane,point )
plane through the given point and parallel to the given plane
Plane (point1,point2 )
plane normal to the line connecting given 2 points and on the 2nd given point
Plane (oint1,point2,point3 ,TRIANGLE )
triangle connecting the given 3 points
Plane (plane,point1,point2 )
plane through the given 2 points and perpendicular to the given plane

See the source for more information.