globalmapper.GetOnlineLayerLocationMetadata

globalmapper.GetOnlineLayerLocationMetadata(GM_LayerHandle_t32 aLayer, float aXCoord, float aYCoord, uint32 aReserved=0) → GM_Error_t32, str[source]

Queries a loaded online layer for location-specific metadata. This is typically used for WMS / WMTS sources that support the GetFeatureInfo interface.

The filepath of the output is returned as a string. The output file will generally be XML or HTML data.

Parameters:

  • aLayer (GM_LayerHandle_t32) – Loaded online layer handle to query (or gm.NULL to get top-most)

  • aXCoord (float) – X coord in current projection

  • aYCoord (float) – Y coord in current projection

  • aReserved (uint32) – Reserved for future use; defaults to 0

Returns:

Error Code

Return type:

GM_Error_t32

Returns:

The location of the file that was downloaded, containing the location-specific metadata for the provided online layer

Return type:

str