oslo_calc.c File Reference

#include "common.h"
#include <stdio.h>
#include "machine.h"
#include "vmath.h"
#include "raytrace.h"
#include "nurb.h"

Include dependency graph for oslo_calc.c:

Go to the source code of this file.

Defines
#define	AMAX(i, j)   ( (i) > (j) ? (i) : (j) )
#define	AMIN(i, j)   ( (i) < (j) ? (i) : (j) )
Functions
oslo_mat *	rt_nurb_calc_oslo (register int order, register const struct knot_vector *tau_kv, register struct knot_vector *t_kv, struct resource *res)
void	rt_nurb_pr_oslo (struct oslo_mat *om)
void	rt_nurb_free_oslo (struct oslo_mat *om, struct resource *res)

---

Detailed Description

Calculate the Oslo refinement matrix.

Author - Paul R. Stay

Source - SECAD/VLD Computing Consortium, Bldg 394 The U.S. Army Ballistic Research Laboratory Aberdeen Proving Ground, Maryland 21005

This algorithm was taken from the paper "Making the Oslo Algorithm More Efficient" by T. Lyche and K. Morken The algorithm referenced in the paper is algorithm 1 since we will be dealing mostly with surfaces. This routine computes the refinement matrix and returns a oslo structure which will allow a new curve or surface to be built.

Since we only want the last row of the alpha's as outlined in the paper we can use a one dimensional array for the ah.

Definition in file oslo_calc.c.

---