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ZoomStack


Unit:SDL_geomap
Class: TGeoMap
Declaration: property ZoomStack [StackIx: integer]: TgmZoomStackEntry;

The property ZoomStack provides access to the zoom stack. Please note the difference between the method ZoomHistory and the property ZoomStack: while ZoomHistory retrieves and sets the scale range parameters, ZoomStack allows to read the values of the ZoomStack without affecting the scales.

The parameter StackIx may take any value between 1-MAXGMZOOMSTACK (currently -15) and 0, referring to the oldest setup (StackIx = -15) up to the most recent one (StackIx = 0). ZoomStack returns all zero values if the parameter StackIx is invalid.



Last Update: 2012-Oct-20