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#ifndef VRML_H
/*
* Simple diagnostic VRML function library for debugging
*
* Copyright 2005 - 2007 Graeme W. Gill
* All rights reserved.
*
* This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :-
* see the License.txt file for licencing details.
*/
struct _vrml {
/* Private: */
FILE *fp;
int isxyz; /* nz if XYZ plot, (range 0..1) */
double scale; /* Scale factor to use (applied before off) */
double off; /* Gamut L center, usually 50, to put 50 at center of view */
/* Expandable point arrays */
struct {
int npoints;
int paloc;
struct {
double pp[3]; /* Vertex position */
double cc[3]; /* Vertex color */
int last; /* Last vertex of line flag */
} *pary;
} set[10]; /* Ten sets */
/* Expandable triangle vertex index */
int ntris;
int taloc;
struct { int set; int ix[3]; } *tary;
/* Public: */
/* Methods */
/* Finish writing the file and free ourselves */
void (*del)(struct _vrml *s);
/* Add a spherical marker point to the plot. col == NULL for natural color */
/* (Need to do this before or after start_line_set()/dd_vertex()/make_lines() !) */
void (*add_marker)(struct _vrml *s, double pos[3], double col[3], double rad);
/* Add a cone marker to the plot. col == NULL for natural color */
/* (Need to do this before or after start_line_set()/dd_vertex()/make_lines() !) */
void (*add_cone)(struct _vrml *s, double p0[3], double p1[3], double col[3], double rad);
/* Add a text marker to the plot. col == NULL for natural color */
/* (Need to do this before or after start_line_set()/dd_vertex()/make_lines() !) */
void (*add_text)(struct _vrml *s, char *text, double p[3], double col[3], double size);
/* Start building up verticies that will be converted to lines */
/* Set can be from 0 - 9 */
void (*start_line_set)(struct _vrml *s, int set);
/* Add a verticy (color automatic from Lab position) */
void (*add_vertex)(struct _vrml *s, int set, double pos[3]);
/* Add a verticy with color */
void (*add_col_vertex)(struct _vrml *s, int set, double pos[3], double col[3]);
/* Turn the last added vertex into the last vertex of the line */
void (*make_last_vertex)(struct _vrml *s, int set);
/* Convert the verticies to lines, ppset verticies per line (or using .last flag) */
/* Use large ppset for just .last flag */
void (*make_lines)(struct _vrml *s, int set, int ppset);
/* Add a triangles vertexes defined by vertex index */
void (*add_triangle)(struct _vrml *s, int set, int ix[3]);
/* Convert the triangle vertexes to triangles with overall color */
void (*make_triangles)(struct _vrml *s, int set, double trans, double col[3]);
/* Convert the triangle vertexes to triangles using vertex colors */
void (*make_triangles_vc)(struct _vrml *s, int set, double trans);
/* Clear verticies and triangles */
void (*clear)(struct _vrml *s);
/* Helper :- convert a Lab value to RGB */
void (*Lab2RGB)(struct _vrml *s, double *out, double *in);
/* Helper :- convert a XYZ value to RGB */
void (*XYZ2RGB)(struct _vrml *s, double *out, double *in);
#ifdef GAMUT_H /* If gamut.h is #included ahead of us */
/* Create a solid gamut surface from the given gamut */
/* trans is trasparency, cc is surface color, cc[0] < 0.0 for natural */
void (*make_gamut_surface)(struct _vrml *s, gamut *g, double trans, double cc[3]);
/* Create a solid or wireframe gamut surface from the given gamut */
/* trans is trasparency, cc is surface color, cc[0] < 0.0 for natural */
void (*make_gamut_surface_2)(struct _vrml *s, gamut *g, double trans, int wire, double cc[3]);
/* Add cusp markers from the gamut surface */
void (*add_cusps)(struct _vrml *s, gamut *g, double trans, double cc[3]);
#endif /* GAMUT_H */
}; typedef struct _vrml vrml;
/* Constructor. */
vrml *new_vrml(char *name, int doaxes, int isxyz);
#define VRML_H
#endif /* VRML_H */
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