GRASS Programmer's Manual  6.4.2(2012)
gvld.c File Reference

OGSF library - loading and manipulating volumes (lower level functions) More...

#include <math.h>
#include <grass/gis.h>
#include <grass/gstypes.h>
#include "mc33_table.h"
Include dependency graph for gvld.c:

Go to the source code of this file.

Defines

#define READ()   gvl_read_char(pos[i]++, gvl->isosurf[i]->data)
#define DISTANCE_2(x1, y1, x2, y2)   sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2))

Functions

int gvld_vol (geovol *gvl)
 Draw volume set (slices and isosurfaces)
int gvld_wire_vol (geovol *gvl)
 Draw volume in wire mode (bounding box)
int gvld_isosurf (geovol *gvl)
 Draw volume isosurfaces.
int gvld_wire_isosurf (geovol *gvl)
 Draw volume isosurface in draw mode.
int gvld_slices (geovol *gvl)
 Draw slices.
int gvld_slice (geovol *gvl, int ndx)
 Draw slice.
int gvld_wire_slices (geovol *gvl)
 Draw wire slices.
int gvld_wind3_box (geovol *gvl)
 Draw volume bounding box.

Detailed Description

OGSF library - loading and manipulating volumes (lower level functions)

GRASS OpenGL gsurf OGSF Library

(C) 1999-2008 by the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author:
Tomas Paudits (February 2004)
Doxygenized by Martin Landa <landa.martin gmail.com> (May 2008)

Definition in file gvld.c.


Define Documentation

#define DISTANCE_2 (   x1,
  y1,
  x2,
  y2 
)    sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2))

Definition at line 419 of file gvld.c.

Referenced by gvld_slice().

#define READ ( )    gvl_read_char(pos[i]++, gvl->isosurf[i]->data)

Definition at line 27 of file gvld.c.

Referenced by gvld_isosurf().


Function Documentation

int gvld_slice ( geovol *  gvl,
int  ndx 
)

Draw slice.

Parameters:
gvlpointer to geovol struct
ndx
Returns:
1

Definition at line 485 of file gvld.c.

References gui_modules::psmap_dialogs::cols, DISTANCE_2, gsd_bgntmesh(), gsd_blend(), gsd_endtmesh(), gsd_litvert_func(), gsd_zwritemask(), r, X, and Y.

Referenced by gvld_slices().

int gvld_slices ( geovol *  gvl)

Draw slices.

Parameters:
gvlpointer to geovol struct
Returns:
0

Definition at line 428 of file gvld.c.

References G_debug(), GS_get_scale(), gsd_blend(), gsd_colormode(), gsd_do_scale(), gsd_getwindow(), gsd_popmatrix(), gsd_pushmatrix(), gsd_set_material(), gsd_shademodel(), gsd_translate(), gsd_zwritemask(), and gvld_slice().

Referenced by gvld_vol().

int gvld_vol ( geovol *  gvl)

Draw volume set (slices and isosurfaces)

Parameters:
gvlpointer to geovol struct
Returns:
-1 on failure
1 on success

Definition at line 37 of file gvld.c.

References G_debug(), gvl_isosurf_calc(), gvl_slices_calc(), gvld_isosurf(), and gvld_slices().

Referenced by GVL_draw_vol().

int gvld_wind3_box ( geovol *  gvl)

Draw volume bounding box.

Parameters:
gvlpointer to geovol struct
Returns:
0

Definition at line 766 of file gvld.c.

References G_debug(), gsd_bgnline(), gsd_color_func(), gsd_colormode(), gsd_do_scale(), gsd_endline(), gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_shademodel(), gsd_translate(), gsd_vert_func(), X, and Y.

Referenced by gvld_wire_vol().

int gvld_wire_isosurf ( geovol *  gvl)

Draw volume isosurface in draw mode.

Parameters:
gvlpointer to geovol struct
Returns:
0

Definition at line 409 of file gvld.c.

Referenced by gvld_wire_vol().

int gvld_wire_slices ( geovol *  gvl)

Draw wire slices.

Parameters:
gvlpointer to geovol struct
Returns:
0

Definition at line 663 of file gvld.c.

References G_debug(), gsd_bgnline(), gsd_color_func(), gsd_colormode(), gsd_do_scale(), gsd_endline(), gsd_linewidth(), gsd_popmatrix(), gsd_pushmatrix(), gsd_set_material(), gsd_shademodel(), gsd_translate(), gsd_vert_func(), X, and Y.

Referenced by gvld_wire_vol().

int gvld_wire_vol ( geovol *  gvl)

Draw volume in wire mode (bounding box)

Parameters:
gvlpointer to geovol struct
Returns:
-1 on failure
1 on success

Definition at line 68 of file gvld.c.

References G_debug(), gvld_wind3_box(), gvld_wire_isosurf(), and gvld_wire_slices().

Referenced by GVL_draw_wire().

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