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Appendix A: Cosmo Basic Types
csPlane
csPlane represents a half space with a normal and an offset, which together form the
parameters of the traditional Ax + By + Cz = D plane equation.
The methods in the class allow you to
• Determine the closest point on the plane to a point in space.
• Determine whether or not it intersects with a csSeg.
• Construct a plane from three points.
• Construct a plane from a point and the plane normal at a point.
• Transform the orientation of the plane.
csFrustum
csFrustum is a truncated, possibly asymmetric pyramid for the purposes of testing
objects against view volumes.
The methods in the class allow you to
• Determine if a point or shape is in the frustum.
• Copy the contents of the frustum.
• Set and return the near and far clipping planes of the frustum.
• Create an orthogonal frustum.
• Transform the frustum.
• Return the aspect of the frustum and the position of the camera.
