api:dk11:activex:tatukgis_xdk11.itgis_viewerwnd.locate_itgis_point_double
Table of Contents
ITGIS_ViewerWnd.Locate method
DK11 for ActiveX | TatukGIS_XDK11.ITGIS_ViewerWnd.Locate | Methods | Properties
Locate a shape that is near _ptg, but is closer than _prec distance.
Available also on: Delphi FMX | .NET WinForms | Java.
Syntax
// C# public ITGIS_ShapeAbstract Locate( ITGIS_Point _ptg, double _prec );
' VisualBasic Public Function Locate( ByVal _ptg As ITGIS_Point, ByVal _prec As Double ) As ITGIS_ShapeAbstract
// Oxygene public function Locate( _ptg : ITGIS_Point; _prec : Double ) : ITGIS_ShapeAbstract;
Parameters
| Name | Type | Description |
|---|---|---|
| _ptg | ITGIS_Point | reference point /searching point/ |
| _prec | double 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 |
Result
| Type | Description |
|---|---|
| ITGIS_ShapeAbstract | Located shape or nil |
Remarks
To improve performance sections visibility can be used to choose layer to call its Locate method.
2020/05/22 01:05