1 files changed, 113 insertions, 0 deletions
diff --git a/plot/vrml.h b/plot/vrml.h
new file mode 100644
index 0000000..e3991c5
--- /dev/null
+++ b/plot/vrml.h
@@ -0,0 +1,113 @@
+
+#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 */