gp3.c File Reference

OGSF library - loading point sets (lower level functions) More...

#include <stdlib.h>
#include <grass/gis.h>
#include <grass/colors.h>
#include <grass/raster.h>
#include <grass/vector.h>
#include <grass/dbmi.h>
#include <grass/glocale.h>
#include <grass/ogsf.h>

Include dependency graph for gp3.c:

Go to the source code of this file.

Functions
geopoint *	Gp_load_sites (const char *name, int *nsites, int *has_z)
	Load to points to memory. More...
int	Gp_load_sites_thematic (geosite *gp, struct Colors *colors)
	Load styles for geopoints based on thematic mapping. More...

Detailed Description

OGSF library - loading point sets (lower level functions)

GRASS OpenGL gsurf OGSF Library

(C) 1999-2008, 2011 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)

Updated by Martin Landa <landa.martin gmail.com> (doxygenized in May 2008, thematic mapping in June 2011)

Definition in file gp3.c.

Function Documentation

Gp_load_sites()

geopoint* Gp_load_sites	(	const char *	name,
		int *	nsites,
		int *	has_z
	)

Load to points to memory.

The other alternative may be to load to a tmp file.

Parameters

	name	name of vector map to be loaded
[out]	nsites	number of loaded points
[out]	has_z	2D or 3D points data loaded?

Returns

pointer to geopoint struct (array)

NULL on failure

Definition at line 40 of file gp3.c.

Gp_load_sites_thematic()

int Gp_load_sites_thematic	(	geosite *	gp,
		struct Colors *	colors
	)

Load styles for geopoints based on thematic mapping.

Parameters

gp	pointer to geosite structure
colors	pointer to Colors structure or NULL

Returns

number of points defined by thematic mapping

-1 on error

Definition at line 171 of file gp3.c.