nurb_trim.c File Reference

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

Include dependency graph for nurb_trim.c:

Go to the source code of this file.

Data Structures
struct	_interior_line
Defines
#define	QUAD1   0
#define	QUAD2   1
#define	QUAD3   2
#define	QUAD4   3
#define	TRIM_OUT   0
#define	TRIM_IN   1
#define	TRIM_ON   2
#define	CASE_A   0
#define	CASE_B   2
#define	CASE_C   3
Functions
void	rt_clip_cnurb (struct bu_list *plist, struct edge_g_cnurb *crv, fastf_t u, fastf_t v)
int	rt_trim_case (struct edge_g_cnurb *trim, fastf_t u, fastf_t v)
int	rt_process_caseb (struct edge_g_cnurb *trim, fastf_t u, fastf_t v)
int	rt_nurb_uv_dist (struct edge_g_cnurb *trim, fastf_t u, fastf_t v)
int	rt_process_casec (struct edge_g_cnurb *trim, fastf_t u, fastf_t v)
int	rt_uv_in_trim (struct edge_g_cnurb *trim, fastf_t u, fastf_t v)
fastf_t	rt_trim_line_pt_dist (struct _interior_line *l, fastf_t *pt, int pt_type)
int	_SIGN (fastf_t f)
int	nmg_uv_in_lu (const fastf_t u, const fastf_t v, const struct loopuse *lu)
Variables
int	quad_table [16]

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Detailed Description

Trimming curve routines.

Author: Paul R. Stay Source SECAD/VLD Computing Consortium, Bldg 394 The US Army Ballistic Research Laboratory Aberdeen Proving Ground, Maryland 21005

Date: Mon June 1, 1992

Definition in file nurb_trim.c.

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Define Documentation

#define QUAD1   0

Definition at line 59 of file nurb_trim.c. Referenced by rt_process_caseb(), and rt_trim_case().

#define QUAD2   1

Definition at line 60 of file nurb_trim.c. Referenced by rt_process_caseb(), and rt_trim_case().

#define QUAD3   2

Definition at line 61 of file nurb_trim.c. Referenced by rt_process_caseb(), and rt_trim_case().

#define QUAD4   3

Definition at line 62 of file nurb_trim.c. Referenced by rt_process_caseb(), and rt_trim_case().

#define TRIM_OUT   0

Definition at line 65 of file nurb_trim.c. Referenced by rt_nurb_uv_dist(), rt_process_caseb(), rt_process_casec(), and rt_uv_in_trim().

#define TRIM_IN   1

Definition at line 66 of file nurb_trim.c. Referenced by rt_process_caseb(), and rt_process_casec().

#define TRIM_ON   2

Definition at line 67 of file nurb_trim.c. Referenced by rt_nurb_uv_dist(), and rt_process_casec().

#define CASE_A   0

Definition at line 73 of file nurb_trim.c. Referenced by rt_uv_in_trim().

#define CASE_B   2

Definition at line 74 of file nurb_trim.c. Referenced by rt_process_casec(), and rt_uv_in_trim().

#define CASE_C   3

Definition at line 75 of file nurb_trim.c. Referenced by rt_process_casec(), and rt_uv_in_trim().

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Function Documentation

void rt_clip_cnurb (  struct bu_list *  plist, struct edge_g_cnurb *  crv, fastf_t  u, fastf_t  v )

Definition at line 401 of file nurb_trim.c. References _interior_line::axis, edge_g_cnurb::c_size, edge_g_cnurb::ctl_points, _interior_line::o_dist, edge_g_cnurb::pt_type, ptr, RT_NURB_EXTRACT_COORDS, and rt_trim_line_pt_dist(). Referenced by rt_process_casec(). Here is the call graph for this function:

int rt_trim_case (  struct edge_g_cnurb *  trim, fastf_t  u, fastf_t  v )

Definition at line 90 of file nurb_trim.c. References edge_g_cnurb::c_size, edge_g_cnurb::ctl_points, edge_g_cnurb::pt_type, QUAD1, QUAD2, QUAD3, QUAD4, RT_NURB_EXTRACT_COORDS, and RT_NURB_IS_PT_RATIONAL. Referenced by rt_process_casec(), and rt_uv_in_trim().

int rt_process_caseb (  struct edge_g_cnurb *  trim, fastf_t  u, fastf_t  v )

Definition at line 142 of file nurb_trim.c. References edge_g_cnurb::c_size, edge_g_cnurb::ctl_points, edge_g_cnurb::pt_type, QUAD1, QUAD2, QUAD3, QUAD4, RT_NURB_EXTRACT_COORDS, RT_NURB_IS_PT_RATIONAL, TRIM_IN, and TRIM_OUT. Referenced by rt_process_casec(), and rt_uv_in_trim().

int rt_nurb_uv_dist (  struct edge_g_cnurb *  trim, fastf_t  u, fastf_t  v )

Definition at line 186 of file nurb_trim.c. References edge_g_cnurb::c_size, edge_g_cnurb::ctl_points, NEAR_ZERO, edge_g_cnurb::pt_type, ptr, RT_NURB_EXTRACT_COORDS, RT_NURB_IS_PT_RATIONAL, TRIM_ON, and TRIM_OUT. Referenced by rt_process_casec().

int rt_process_casec (  struct edge_g_cnurb *  trim, fastf_t  u, fastf_t  v )

Definition at line 257 of file nurb_trim.c. References BU_LIST_DEQUEUE, BU_LIST_INIT, BU_LIST_WHILE, CASE_B, CASE_C, clip(), nurb_c_to_bezier(), nurb_crv_is_bezier(), rt_clip_cnurb(), rt_nurb_free_cnurb(), rt_nurb_uv_dist(), rt_process_caseb(), rt_trim_case(), TRIM_IN, TRIM_ON, and TRIM_OUT. Referenced by rt_uv_in_trim(). Here is the call graph for this function:

int rt_uv_in_trim (  struct edge_g_cnurb *  trim, fastf_t  u, fastf_t  v )

Definition at line 324 of file nurb_trim.c. References bu_log(), CASE_A, CASE_B, CASE_C, rt_process_caseb(), rt_process_casec(), rt_trim_case(), and TRIM_OUT. Referenced by nmg_uv_in_lu(). Here is the call graph for this function:

fastf_t rt_trim_line_pt_dist (  struct _interior_line *  l, fastf_t *  pt, int  pt_type )

Definition at line 354 of file nurb_trim.c. References _interior_line::axis, _interior_line::o_dist, and RT_NURB_IS_PT_RATIONAL. Referenced by rt_clip_cnurb().

int _SIGN (  fastf_t  f  )

Definition at line 378 of file nurb_trim.c.

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Variable Documentation

int quad_table[16]

Initial value: { 0,0,0,0,0,3,0,3,0,2,3,3,0,3,3,3 } Definition at line 77 of file nurb_trim.c.

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