void object::test<3>()
{
char* wktOuter = "POLYGON((-90 -90, -90 90, 190 -90, -90 -90))";
err_ = OGR_G_CreateFromWkt(&wktOuter, NULL, &g1_);
ensure_equals("Can't import geometry from WKT", OGRERR_NONE, err_);
ensure("Can't create geometry", NULL != g1_);
char* wktInner = "POLYGON((0 0, 10 10, 10 0, 0 0))";
err_ = OGR_G_CreateFromWkt(&wktInner, NULL, &g2_);
ensure_equals("Can't import geometry from WKT", OGRERR_NONE, err_);
ensure("Can't create geometry", NULL != g2_);
ensure_equals("OGR_G_Contains() failed with FALSE",
OGR_G_Contains(g1_, g2_), TRUE);
ensure_equals("OGR_G_Contains() failed with TRUE",
OGR_G_Contains(g2_, g1_), FALSE);
}
/**
* \brief Convenience function to check if a geometry is contained in a OGR
* datasource for a given layer.
*
* The passed geometry is a wkt representation of a geometry of type GeomType.
* pszFile is opened, and the passed geometry is queried against all
* geometries in pszLayer. If the passed geometry is contained in *any* of the
* geomtries in the layer, TRUE is returned. FALSE is returned otherwise,
* including errors. The SRS of all geometries is assumed to be the same.
*
* \param pszWkt Well-known text representation of a geometry.
* \param pszFile File to open
* \param pszLayer Layer to extract geometry from, if NULL, use layer 0.
* \return TRUE if pszWkt is contained in any geometry in pszLayer, FALSE
* otherwise, include errors
*/
int NinjaOGRContain(const char *pszWkt, const char *pszFile,
const char *pszLayer)
{
int bContains = FALSE;
if( pszWkt == NULL || pszFile == NULL )
{
return FALSE;
}
CPLDebug( "WINDNINJA", "Checking for containment of %s in %s:%s",
pszWkt, pszFile, pszLayer ? pszLayer : "" );
OGRGeometryH hTestGeometry = NULL;
int err = OGR_G_CreateFromWkt( (char**)&pszWkt, NULL, &hTestGeometry );
if( hTestGeometry == NULL || err != CE_None )
{
return FALSE;
}
OGRDataSourceH hDS = OGROpen( pszFile, 0, NULL );
if( hDS == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Failed to open datasource: %s", pszFile );
OGR_G_DestroyGeometry( hTestGeometry );
bContains = FALSE;
return bContains;
}
OGRLayerH hLayer;
if( pszLayer == NULL )
{
hLayer = OGR_DS_GetLayer( hDS, 0 );
}
else
{
hLayer = OGR_DS_GetLayerByName( hDS, pszLayer );
}
OGRFeatureH hFeature;
if( hLayer != NULL )
{
OGRGeometryH hGeometry;
OGR_L_ResetReading( hLayer );
while( ( hFeature = OGR_L_GetNextFeature( hLayer ) ) != NULL )
{
hGeometry = OGR_F_GetGeometryRef( hFeature );
if( OGR_G_Contains( hGeometry, hTestGeometry ) )
{
bContains = TRUE;
OGR_F_Destroy( hFeature );
break;
}
OGR_F_Destroy( hFeature );
}
}
OGR_G_DestroyGeometry( hTestGeometry );
OGR_DS_Destroy( hDS );
return bContains;
}
