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/lib/libtvuvisu3D/nr_gvx.h

/*
 * -------------------------------------------------------------------------
 * File:    nr_gvx.h: 01 11 00
 * Content: Protypes of Geomview Wrapper Routines
 * -------------------------------------------------------------------------
 * 10:50, Monday 26 March 2001
 * Insults & Complaints : Nathanael.Rota@sophia.inria.fr
 * -------------------------------------------------------------------------
 */

#ifndef NR_GVX_H
#define NR_GVX_H

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <math.h>

#include "nr_gvx_point.h"

extern char* m_CameraParameters;

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
  
  /* 
     Initialistation and Destruction of gvx window -
     nr_gvx_init() function can't be omitted, then the gvx window will be 
     640x480 sized with black background */
  
  void nr_gvx_init(int width, int height, int bg_red, int bg_green, int bg_blue);
  void nr_gvx_kill(void);

// TVU
        void nr_vrml_init(void);
// TVU
  /*
     Snapshot Routines - 
     nr_gvx_pnm():  save on pnm format,
     nr_gvx_vrml(): save on vrml format, 
  */
  
  void nr_gvx_ppm(char * file_name);
  void nr_gvx_vrml(char * file_name);
  
  
  /* 
     Graphic Routines - 
  */
  
  /* Display all the objects drawn since the last call
   */
  void nr_gvx_show(void); 

  /* Draw a line between P0 (x0,y0,z0) and P1 (x1,y1,z1)
   */
  void nr_gvx_draw_line(int x0, int y0, int z0, int x1, int y1, int z1, 
                        int size, int red, int green, int blue);

  /* Draw a cube centered in P0 (x0,y0,z0)
   */
  void nr_gvx_draw_cube(int x0, int y0, int z0, 
                        int size, int red, int green, int blue);

  /* Draw a sphere centered in P0 (x0,y0,z0)
   */
  void nr_gvx_draw_sphere(int x0, int y0, int z0, 
                          int size, int red, int green, int blue);

  /* Draw a dodecaedre centered in P0 (x0,y0,z0), very usefull to 
     approximate sphere if Geomview isn't compiled with opengl
  */
  void nr_gvx_draw_dodec(int x0, int y0, int z0, 
                         int size, int red, int green, int blue);

  /* Draw a pointer centered in P0 (x0,y0,z0) pointed like negative z axis
   */
  void nr_gvx_draw_pointer(int x0, int y0, int z0, 
                           int size, int red, int green, int blue);

  /* Draw a triangle (face) between P0 (x0,y0,z0), P1 (x1,y1,z1) and P2 (x2,y2,z2) 
   */
  void nr_gvx_draw_triangle(int x0, int y0, int z0, int x1, int y1, int z1, int x2, int y2, int z2, 
                          int red, int green, int blue);

  /* Draw a polygone described by poly
   */
  void nr_gvx_draw_polygon(nr_gvx_polygon_t poly, int height, 
                            int red, int green, int blue);

  /* 
     Special System Routines 
  */
  
  FILE * nr_gvx_get_port(void); 
  int    nr_gvx_get_pid(void);
  
#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif  /* NR_GVX_H */
/* ----------------------------------^^-------------------------------------- */

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