GM_GenerateContours(Ex) |
Generates contours from loaded elevation data and creates a new vector layer with the results. The layer handle returned in aContourLayer must be closed with GM_CloseLayer when you are done with it.
See the definition of the GM_ContourParams_t type in the GlobalMapperInterface.h header file for a description of what options are available when generating the contour lines, iso-height areas, and/or min/max spot elevations.
SyntaxGM_Error_t32 __stdcall GM_GenerateContours ( GM_LayerHandle_t32 aLayer, // IN: Layer to get elevations from or NULL for topmost layer at each point const GM_ContourParams_t* aContourParms, // IN: Parameters for generating contours GM_LayerHandle_t32* aContourLayer // OUT: Created contour layer );
GM_Error_t32 __stdcall GM_GenerateContoursEx ( GM_LayerHandle_t32* aLayerList, // IN: List of layers to use or NULL for all uint32 aLayerCount, // IN: Number of layers in list (0 for all) const GM_ContourParams_t* aContourParms, // IN: Parameters for generating contours GM_LayerHandle_t32* aContourLayer // OUT: Created contour layer );