The SDL Component Suite is an industry leading collection of components supporting scientific and engineering computing. Please visit the SDL Web site for more information....


Home GeoPack GeoMap Class TGeoMap Methods CalcPixelCoords
See also: CalcLatitude, CalcLongitude, CalcPixelCoordsUTM 

CalcPixelCoords

Unit:SDL_geomap
Class:TGeoMap
Declaration:function CalcPixelCoords (Lat, Long: double; var x,y: integer): boolean;

The method CalcPixelCoords calculates the pixel coordinates of a given location defined by the latitude lat and the longitude long. The pixel coordinates are valid only if the function returns a TRUE value (i.e. if the graticule is calibrated and valid).

Hint: The pixel coordinates are in the reference frame of the scanned map image, use the method MapImageToControl to transform the coordinates to the screen reference frame.

Example: This method is used in the following example program (see http://www.lohninger.com/examples.html for downloading the code): movecar


Last Update: 2023-Dec-13