C++ (Cpp) lwgeom_length_2d Exemples

Exemple #1

Fichier : lwcurvepoly.c Projet : TesseractG/lwgeom

double
lwcurvepoly_perimeter_2d(const LWCURVEPOLY *poly)
{
	double result=0.0;
	int i;

	for (i=0; i<poly->nrings; i++)
		result += lwgeom_length_2d(poly->rings[i]);

	return result;
}

Exemple #2

Fichier : lwcompound.c Projet : nextgis-borsch/postgis

double lwcompound_length_2d(const LWCOMPOUND *comp)
{
	int i;
	double length = 0.0;
	if ( lwgeom_is_empty((LWGEOM*)comp) )
		return 0.0;

	for (i = 0; i < comp->ngeoms; i++)
	{
		length += lwgeom_length_2d(comp->geoms[i]);
	}
	return length;
}

Exemple #3

Fichier : lwgeom.c Projet : abuhamid/bd_geonode

double lwgeom_length_2d(const LWGEOM *geom)
{
	int type = geom->type;
	if ( type == LINETYPE )
		return lwline_length_2d((LWLINE*)geom);
	else if ( type == CIRCSTRINGTYPE )
		return lwcircstring_length_2d((LWCIRCSTRING*)geom);
	else if ( type == COMPOUNDTYPE )
		return lwcompound_length_2d((LWCOMPOUND*)geom);
	else if ( lwgeom_is_collection(geom) )
	{
		double length = 0.0;
		int i;
		LWCOLLECTION *col = (LWCOLLECTION*)geom;
		for ( i = 0; i < col->ngeoms; i++ )
			length += lwgeom_length_2d(col->geoms[i]);
		return length;
	}
	else
		return 0.0;
}