CFCFD: geometry/source/bezier_polyline.h Source File

00001 
00007 #include "stdlib.h"
00008 #include "geom.h"
00009 #include "bezier.h"
00010 
00011 
00015 struct bezier_3_poly_data
00016 {
00017    int n;                          /* number of Bezier segments     */
00018    struct bezier_3_data *b3_seg;   /* data for each of the segments */
00019    double *t_star;                 /* Normalized distance along     */
00020                                    /* the polyline                  */
00021    int closed;                     /* =0, open curve                */
00022                                    /* =1, closed curve              */
00023 };
00024 
00025 /* Function Declarations */
00026 
00027 int alloc_bezier_3_poly(struct bezier_3_poly_data *bp, int n);
00028 int free_bezier_3_poly(struct bezier_3_poly_data *bp );
00029 
00030 int segment_bezier_3_poly(struct bezier_3_poly_data *bp,
00031                           struct point_3D *loc0,
00032                           struct point_3D *loc1,
00033                           struct point_3D *loc2,
00034                           struct point_3D *loc3,
00035                           int i);
00036 
00037 int normalize_bezier_3_poly(struct bezier_3_poly_data *bp);
00038 
00039 int eval_bezier_3_poly(struct bezier_3_poly_data *bp,
00040                         double t_star,
00041                         struct point_3D *loc);
00042 
00043 int bezier_3_spline(struct bezier_3_poly_data *bp,
00044                     int m,
00045                     struct point_3D p[] );
00046 
00047 int coons_bezier_3(struct bezier_3_poly_data *c1,
00048                    struct bezier_3_poly_data *c2,
00049                    struct bezier_3_poly_data *c3,
00050                    struct bezier_3_poly_data *c4,
00051                    double r, double s,
00052                    struct point_3D *d);
00053 
00054