api:dk11:delphi:gisviewer.tgis_viewer.rotationangle
Table of Contents
TGIS_Viewer.RotationAngle property
DK11 for Delphi | GisViewer.TGIS_Viewer.RotationAngle | Constructors | Fields | Methods | Properties | Events | Events
Angle of viewer rotation in radians.
Syntax
// Delphi public property RotationAngle : Double read write;
// C++ Builder public: __property double RotationAngle = {read, write};
Value
| Type |
|---|
| Double |
Remarks
If a map is rotated, remember that rotation is treated as projection, so coordinates are transformable. If map will be rotated, the using RestrictedDrag is not recommended.
See also RotationPoint and TGIS_Layer.Unproject.
Example
Delphi
procedure MyForm.GIS_SpinEdit1Change(Sender: TObject); begin // calculate the angle for set value GIS.RotationAngle := DegToRad( GIS_SpinEdit1.Value ) ; GIS.Update ; end ;
References
2022/11/30 19:19