User Tools

Site Tools


Table of Contents

IGIS_Viewer.Locate(TPoint, int) method

DK11 for .NET | TatukGIS.NDK.IGIS_Viewer.Locate | Overloads | Methods | Properties

Locate a shape that is near _pt, but is closer than _prec distance.

Available also on: Delphi | Java | ActiveX.


// C#
public TGIS_ShapeAbstract Locate(
  TPoint _pt,
  int _prec
' VisualBasic
Public Function Locate(
  ByVal _pt As TPoint,
  ByVal _prec As Integer
) As TGIS_ShapeAbstract
// Oxygene
  function Locate(
    _pt : TPoint;
    _prec : Integer
  ) : TGIS_ShapeAbstract;


Name Type Description
_pt TPoint reference point /searching point/ in pixels
_prec int
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 pixels


Type Description
TGIS_ShapeAbstract Located shape or nil


If locate is called upon active paint operations then result could be null. But Locate and paint process are using the same vector enumerator context.

It is recommended to check InPaint property before calling this Locate.

2020/05/07 01:19

Page Tools