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Home GeoPack GeoMap Type Declarations and Constants TLandMark
See also: LMClassVisible, AddLandMark, LandmarkData, TLandMarkAction, TLandMarkElement, LandMarkDefault, DrawLandMarkSymbolOnCanvas, OnDrawLandmark, LMRandomDisplayThreshold, TLMIdentifier 

TLandMark

Unit:SDL_geomap
Class: none
Declaration: 
TLandMark = record
              Latitude   : double;
              Longitude  : double;
              Height     : double;
              ClassFlag  : byte;
              Tag        : longint;
              SymbolProps: TSymbolProperties;
              Identifier : TLMIdentifier;
              Time       : TDateTime;
            end;

The type definition TLandMark specifies the structure of a landmark (a mark in the map indicating some special location). The parameters Latitude and Longitude contain the coordinates of the landmark, the parameter Height the height of the location. The parameter ClassFlag may assume values between 0 and 255 and can be used to group related landmarks. The visibility of landmarks can be controlled group-wise (see property LMClassVisible).

The parameter Tag can be used to specify an arbitrary integer value, which can be used by the programmer for his own purposes. Tag is not used by TGeoMap. The parameter SymbolProps specifies the visual appearance of the symbol.

The parameter Identifier contains a string of max. 15 characters which can be used to identify the landmark. The parameter Time contains the time stamp of the landmark.

Last Update: 2007-Mai-19