GRASS Programmer's Manual  6.4.2(2012)
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Pages
position.c File Reference

Nviz library – Position, focus settings. More...

#include <grass/glocale.h>
#include <grass/nviz.h>
Include dependency graph for position.c:

Go to the source code of this file.

Functions

void Nviz_init_view (nv_data *data)
int Nviz_set_focus_state (int state_flag)
 Set focus state.
int Nviz_set_focus_map (int type, int id)
 Set focus based on loaded map.

Detailed Description

Nviz library – Position, focus settings.

Based on visualization/nviz/src/position.c

(C) 2008, 2010 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
Updated/modified by Martin Landa <landa.martin gmail.com> (Google SoC 2008/2010)

Definition in file position.c.

Function Documentation

void Nviz_init_view ( nv_data *  data)

Initialize view, position, lighting settings (focus)

Set position to center of view

Definition at line 23 of file position.c.

References GS_init_view(), Nviz_set_focus_state(), Nviz_set_light_ambient(), Nviz_set_light_bright(), Nviz_set_light_color(), and Nviz_set_light_position().

Referenced by gui_modules.wxnviz.Nviz::InitView().

int Nviz_set_focus_map ( int  type,
int  id 
)

Set focus based on loaded map.

If map is MAP_OBJ_UNDEFINED, set focus from first surface/volume in the list.

Parameters
typemap object type
idmap object id
Returns
0 on no focus
id id of map object used for setting focus

Definition at line 75 of file position.c.

References G_free(), GS_get_surf_list(), GS_num_surfs(), GS_set_focus_center_map(), GS_set_nofocus(), GVL_get_vol_list(), GVL_num_vols(), and GVL_set_focus_center_map().

Referenced by gui_modules.wxnviz.Nviz::LoadSurface().

int Nviz_set_focus_state ( int  state_flag)

Set focus state.

Parameters
state_flag1 for center view, 0 use viewdir
Returns
1 on success
0 on failure

Definition at line 49 of file position.c.

References G_warning(), GS_set_infocus(), and GS_set_nofocus().

Referenced by Nviz_init_view().