GetPixelElevation¶
- globalmapper.GetPixelElevation(GM_LayerHandle_t32 aLayer, sint32 aRow, sint32 aCol) GM_Error_t32, float[source]¶
Retrieves the elevation at a given pixel location from a provided elevation layer. If the layer does not contain a valid elevation sample at the provided pixel location (i.e. it is a “no data” value), GM_Error_NoDataAtLocation will be returned.
- Parameters:
aLayer (GM_LayerHandle_t32) – Layer to get elevation from
aRow (sint32) – Y coord of pixel (0 is topmost)
aCol (sint32) – X coord of pixel (0 is leftmost)
- Returns:
Error Code
- Return type:
GM_Error_t32
- Returns:
Elevation at location in meters
- Return type:
float
Note
To get pixel row/col data, you can select a point feature in Global Mapper:
Right-click -> Attribute/Style Functions -> Add Pixel Coordinates to Selected Point(s)
Example¶
The following is an example of GetPixelElevation.
err_GetPixelElevation, elevation = gm.GetPixelElevation(
layers_list[0], 5858, 4596
)
For more context refer to the raster/elevation layer query sample scripts.
