DK11 for Delphi | GisLayerVector.TGIS_Shape.Distance2PartCS | Constructors | Fields | Methods | Properties
Calculate the WGS84 distance between a point and a part in the current shape.
// Delphi public function Distance2PartCS( const _ptg : TGIS_Point; const _prec : Double; const _part : Integer; var _proj : TGIS_Point ) : Double; virtual; abstract;
// C++ Builder public: virtual double Distance2PartCS( TGIS_Point* const _ptg, const double _prec, const int _part, TGIS_Point* &_proj ) = 0;
Name | Type | Description |
---|---|---|
_ptg | TGIS_Point | reference point |
_prec | Double | precision /not longer distance than/; point inside polygon is always not greater than _prec; if _prec less then 0 then being outside/inside polygon means the same; |
_part | Integer | part number to which the distance will be computed |
_proj | TGIS_Point | point projected to a nearest element of the shape |
Type | Description |
---|---|
Double | Distance in meters (if CS of layers are known). |