void object::test<2>()
{
geom1_ = GEOSGeomFromWKT("POLYGON((1 1,1 5,5 5,5 1,1 1))");
geom2_ = GEOSGeomFromWKT("POINT(2 2)");
ensure( nullptr != geom1_ );
ensure( nullptr != geom2_ );
char const r1 = GEOSWithin(geom1_, geom2_);
ensure_equals(int(r1), 0);
char const r2 = GEOSWithin(geom2_, geom1_);
ensure_equals(int(r2), 1);
}
void object::test<1>()
{
geom1_ = GEOSGeomFromWKT("POLYGON EMPTY");
geom2_ = GEOSGeomFromWKT("POLYGON EMPTY");
ensure( nullptr != geom1_ );
ensure( nullptr != geom2_ );
char const r1 = GEOSWithin(geom1_, geom2_);
ensure_equals(r1, 0);
char const r2 = GEOSWithin(geom2_, geom1_);
ensure_equals(r2, 0);
}
void object::test<3>()
{
geom1_ = GEOSGeomFromWKT("MULTIPOLYGON(((0 0,0 10,10 10,10 0,0 0)))");
geom2_ = GEOSGeomFromWKT("POLYGON((1 1,1 2,2 2,2 1,1 1))");
ensure( nullptr != geom1_ );
ensure( nullptr != geom2_ );
char const r1 = GEOSWithin(geom1_, geom2_);
ensure_equals(int(r1), 0);
char const r2 = GEOSWithin(geom2_, geom1_);
ensure_equals(int(r2), 1);
}
long long msudf_within(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom1,geom2;
long long result;
DEBUG("msudf_within");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geom2 = msudf_getGeometry((unsigned char *)args->args[1],args->lengths[1]);
if (geom2 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSWithin(geom1,geom2);
if (geom1 != NULL) GEOSGeom_destroy(geom1);
if (geom2 != NULL) GEOSGeom_destroy(geom2);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
/*
** Is shape1 within shape2, returns MS_TRUE/MS_FALSE or -1 for an error.
*/
int msGEOSWithin(shapeObj *shape1, shapeObj *shape2)
{
#ifdef USE_GEOS
GEOSGeom g1, g2;
int result;
if(!shape1 || !shape2)
return -1;
if(!shape1->geometry) /* if no geometry for shape1 then build one */
shape1->geometry = (GEOSGeom) msGEOSShape2Geometry(shape1);
g1 = shape1->geometry;
if(!g1) return -1;
if(!shape2->geometry) /* if no geometry for shape2 then build one */
shape2->geometry = (GEOSGeom) msGEOSShape2Geometry(shape2);
g2 = shape2->geometry;
if(!g2) return -1;
result = GEOSWithin(g1, g2);
return ((result==2) ? -1 : result);
#else
msSetError(MS_GEOSERR, "GEOS support is not available.", "msGEOSWithin()");
return -1;
#endif
}
void OGRILI1Layer::PolygonizeAreaLayer()
{
if (poAreaLineLayer == 0) return;
//add all lines from poAreaLineLayer to collection
OGRGeometryCollection *gc = new OGRGeometryCollection();
poAreaLineLayer->ResetReading();
while (OGRFeature *feature = poAreaLineLayer->GetNextFeatureRef())
gc->addGeometry(feature->GetGeometryRef());
//polygonize lines
CPLDebug( "OGR_ILI", "Polygonizing layer %s with %d multilines", poAreaLineLayer->GetLayerDefn()->GetName(), gc->getNumGeometries());
OGRMultiPolygon* polys = Polygonize( gc , false);
CPLDebug( "OGR_ILI", "Resulting polygons: %d", polys->getNumGeometries());
if (polys->getNumGeometries() != poAreaReferenceLayer->GetFeatureCount())
{
CPLDebug( "OGR_ILI", "Feature count of layer %s: %d", poAreaReferenceLayer->GetLayerDefn()->GetName(), GetFeatureCount());
CPLDebug( "OGR_ILI", "Polygonizing again with crossing line fix");
delete polys;
polys = Polygonize( gc, true ); //try again with crossing line fix
}
delete gc;
//associate polygon feature with data row according to centroid
#if defined(HAVE_GEOS)
int i;
OGRPolygon emptyPoly;
GEOSGeom *ahInGeoms = NULL;
CPLDebug( "OGR_ILI", "Associating layer %s with area polygons", GetLayerDefn()->GetName());
ahInGeoms = (GEOSGeom *) CPLCalloc(sizeof(void*),polys->getNumGeometries());
for( i = 0; i < polys->getNumGeometries(); i++ )
{
ahInGeoms[i] = polys->getGeometryRef(i)->exportToGEOS();
if (!GEOSisValid(ahInGeoms[i])) ahInGeoms[i] = NULL;
}
poAreaReferenceLayer->ResetReading();
while (OGRFeature *feature = poAreaReferenceLayer->GetNextFeatureRef())
{
GEOSGeom point = (GEOSGeom)feature->GetGeometryRef()->exportToGEOS();
for (i = 0; i < polys->getNumGeometries(); i++ )
{
if (ahInGeoms[i] && GEOSWithin(point, ahInGeoms[i]))
{
OGRFeature* areaFeature = feature->Clone();
areaFeature->SetGeometry( polys->getGeometryRef(i) );
AddFeature(areaFeature);
break;
}
}
if (i == polys->getNumGeometries())
{
CPLDebug( "OGR_ILI", "Association between area and point failed.");
feature->SetGeometry( &emptyPoly );
}
GEOSGeom_destroy( point );
}
for( i = 0; i < polys->getNumGeometries(); i++ )
GEOSGeom_destroy( ahInGeoms[i] );
CPLFree( ahInGeoms );
#endif
poAreaReferenceLayer = 0;
poAreaLineLayer = 0;
}
