How to create a very simple viewer. This sample is also available for FMX.Mobile and can be compiled for iOS and Android apps.
See also Viewer sample.
This sample illustrates use of:
|TGIS_Viewer.Close||Close a project.|
|TGIS_ViewerWnd.Mode||Mode of reaction to mouse events.|
|TGIS_Viewer.FullExtent||Calculate the screen origin, zoom, and viewport to place the whole map in the window.|
|TGIS_Viewer.IsEmpty||True, if Viewer is empty (no layers).|
|TGIS_Viewer.CS||Coordinate System assigned to the viewer.|
|TGIS_Viewer.Locate||Locate a shape that is near _ptg, but is closer than _prec distance.|
|TGIS_Viewer.ScreenToMap||Converts point coordinates from screen related to map related.|
|TGIS_LayerVector.DeselectAll||Clear selection of all shapes.|
|TGIS_Shape.IsSelected||Is shape selected.|