Locate a shape that is near _ptg, but is closer than _prec distance.
// Java public TGIS_ShapeAbstract Locate( TGIS_Point _ptg, double _prec );
// Oxygene public function Locate( _ptg : TGIS_Point; _prec : Double ) : TGIS_ShapeAbstract;
|_ptg||TGIS_Point||reference point /searching point/|
|_prec|| double |
|precision /not a longer distance than/; for points inside the polygon (if _prec >= 0) the distance will be multiply by 0.95 (to prefer points inside the polygon) but will not be bigger then _prec; for point distance will be multiplied by 0.9 to prefer points over lines and polygons; precision is express in map units|
|TGIS_ShapeAbstract||Located shape or nil|
To improve performance sections visibility can be used to choose layer to call its Locate method.