gp.c File Reference

OGSF library - loading and manipulating point sets. More...

#include <stdlib.h>
#include <grass/gis.h>
#include <grass/gstypes.h>

Include dependency graph for gp.c:

Go to the source code of this file.

Macros
#define	FIRST_SITE_ID   21720

Functions
geosite *	gp_get_site (int id)
	Get geosite struct. More...
geosite *	gp_get_prev_site (int id)
	Get previous geosite struct from list. More...
int	gp_num_sites (void)
	Get number of loaded point sets. More...
geosite *	gp_get_last_site (void)
	Get last point set. More...
geosite *	gp_get_new_site (void)
	Create new geosite instance and add it to list. More...
void	gp_update_drapesurfs (void)
	Update drape surfaces. More...
int	gp_set_defaults (geosite *gp)
	Set default value for geosite struct. More...
void	print_site_fields (geosite *gp)
	Print point set fields, debugging. More...
int	gp_init_site (geosite *gp)
	Initialize geosite struct. More...
void	gp_delete_site (int id)
	Delete point set and remove from list. More...
int	gp_free_site (geosite *fp)
	Free geosite struct. More...
void	gp_free_sitemem (geosite *fp)
	Free geosite. More...
void	gp_set_drapesurfs (geosite *gp, int hsurfs[], int nsurfs)
	Set drape surfaces. More...

Detailed Description

OGSF library - loading and manipulating point sets.

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

Bill Brown USACERL, GMSL/University of Illinois (January 1994)

Doxygenized by Martin Landa <landa.martin gmail.com> (May 2008)

Definition in file gp.c.

Macro Definition Documentation

#define FIRST_SITE_ID   21720

Definition at line 24 of file gp.c.

Referenced by gp_get_new_site().

Function Documentation

void gp_delete_site

(

int

id

)

Delete point set and remove from list.

Parameters

id	point set id

Definition at line 266 of file gp.c.

References G_debug(), gp_free_site(), and gp_get_site().

Referenced by GP_delete_site().

int gp_free_site

(

geosite *

fp

)

Free geosite struct.

Parameters

fp	pointer to geosite struct

Returns

1 on success

-1 on failure

Definition at line 289 of file gp.c.

References G_debug(), G_free(), gp_free_sitemem(), and NULL.

Referenced by gp_delete_site().

void gp_free_sitemem

(

geosite *

fp

)

Free geosite.

Parameters

fp	pointer to geosite struct

Definition at line 338 of file gp.c.

References G_free(), and NULL.

Referenced by gp_free_site(), and GP_load_site().

geosite* gp_get_last_site

(

void

)

Get last point set.

Returns

pointer to geosite struct

NULL if no point set is available

Definition at line 97 of file gp.c.

References G_debug(), and NULL.

Referenced by gp_get_new_site().

geosite* gp_get_new_site

(

void

)

Create new geosite instance and add it to list.

Returns

pointer to geosite struct

NULL on error

Definition at line 120 of file gp.c.

References FIRST_SITE_ID, G_debug(), gp_get_last_site(), and NULL.

Referenced by GP_new_site().

geosite* gp_get_prev_site

(

int

id

)

Get previous geosite struct from list.

Parameters

id	point set id

Returns

pointer to geosite struct

NULL on failure

Definition at line 59 of file gp.c.

References G_debug(), and NULL.

geosite* gp_get_site

(

int

id

)

Get geosite struct.

Parameters

id	point set id

Returns

pointer to geosite struct

NULL on failure

Definition at line 36 of file gp.c.

References G_debug(), and NULL.

Referenced by GP_attmode_color(), GP_attmode_none(), gp_delete_site(), GP_draw_site(), GP_Get_ClientData(), GP_get_sitemode(), GP_get_sitename(), GP_get_trans(), GP_get_zmode(), GP_load_site(), GP_select_surf(), GP_Set_ClientData(), GP_set_sitemode(), GP_set_trans(), GP_set_zmode(), GP_site_exists(), GP_surf_is_selected(), GP_unselect_surf(), and Nviz_set_vpoint_attr_default().

int gp_init_site

(

geosite *

gp

)

Initialize geosite struct.

Parameters

gp	pointer to geosite struct

Returns

-1 on failure

0 on success

Definition at line 250 of file gp.c.

References G_debug().

int gp_num_sites

(

void

)

Get number of loaded point sets.

Returns

number of point sets

Definition at line 79 of file gp.c.

References G_debug().

Referenced by GP_num_sites().

int gp_set_defaults

(

geosite *

gp

)

Set default value for geosite struct.

Parameters

gp	pointer to geosite struct

Returns

1 on success

-1 on failure

Definition at line 183 of file gp.c.

References G_debug(), GS_get_longdim(), and NULL.

Referenced by GP_new_site().

void gp_set_drapesurfs	(	geosite *	gp,
		int	hsurfs[],
		int	nsurfs
	)

Set drape surfaces.

Parameters

gp	pointer to geosite struct
hsurf	list of surfaces (id)
nsurf	number of surfaces

Definition at line 369 of file gp.c.

void gp_update_drapesurfs

(

void

)

Update drape surfaces.

Call after surface is deleted

Definition at line 151 of file gp.c.

References gs_get_surf(), and NULL.

void print_site_fields

(

geosite *

gp

)

Print point set fields, debugging.

Parameters

gp	pointer to geosite struct

Definition at line 219 of file gp.c.

Referenced by GP_draw_site().