Geom_Plane

Open CASCADE Technology »  Module ModelingData »  Toolkit TKG3d  »   Package Geom

Geom_Plane Class Reference

Describes a plane in 3D space. 
A plane is positioned in space by a coordinate system 
(a gp_Ax3 object) such that the plane is defined by 
the origin, "X Direction" and "Y Direction" of this 
coordinate system. 
This coordinate system is the "local coordinate <br> system" of the plane. The following apply: 

• Its "X Direction" and "Y Direction" are respectively 
  the u and v parametric directions of the plane. 
  
• Its origin is the origin of the u and v parameters 
  (also called the "origin" of the plane). 
  
• Its "main Direction" is a vector normal to the plane. 
  This normal vector gives the orientation of the 
  plane only if the local coordinate system is "direct". 
  (The orientation of the plane is always defined by 
  the "X Direction" and the "Y Direction" of its local 
  coordinate system.) 
  The parametric equation of the plane is: 
  P(u, v) = O + u*XDir + v*YDir 
  where O, XDir and YDir are respectively the 
  origin, the "X Direction" and the "Y Direction" of the 
  local coordinate system of the plane. 
  The parametric range of the two parameters u and v 
  is ] -infinity, +infinity [. 
  

#include <Geom_Plane.hxx>

Inheritance diagram for Geom_Plane: