Contour licence error appears as a GXError warning

[ianneilmacleod]

c:\development\github\gxpy\geosoft\gxapi\GXMVU.py in contour(cls, mview, con, grid)
    610         **License:** `Geosoft End-User License <https://geosoftgxdev.atlassian.net/wiki/spaces/GD/pages/2359406/License#License-GeosoftDesktopLicense>`_
    611         """
--> 612         gxapi_cy.WrapMVU._contour(GXContext._get_tls_geo(), mview, con.encode(), grid.encode())
    613 
    614 

gxapi_cy.pyx in gxapi_cy.WrapMVU._contour()

gxapi_cy.pyx in gxapi_cy._raise_on_gx_errors()

GXError: 23 of the original 39 zones have been removed from the original equal-area ITR because they are redundant. This is usually the result of highly skewed (e.g. single-valued) data.