I am attempting to topographically rectify Landsat data using the i.topo.corr GRASS function from within R using the rgrass7 package.
My code is as follows:
execGRASS("i.topo.corr", flags = "i", parameters = list(basemap = "dem1", zenith = sz, azimuth = sa, output = "topcor"))I get the following error message:
ERROR: Unable to open header file for raster map Warning message:running command 'i.topo.corr.exe -i basemap=dem1 zenith=34.39363265 azimuth=91.80771519 output=topcor' had status 1 Can anyone shed some light on what this error message means and how to fix it?Cheers Brett
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My code is as follows:
execGRASS("i.topo.corr", flags = "i", parameters = list(basemap = "dem1", zenith = sz, azimuth = sa, output = "topcor"))I get the following error message:
ERROR: Unable to open header file for raster map Warning message:running command 'i.topo.corr.exe -i basemap=dem1 zenith=34.39363265 azimuth=91.80771519 output=topcor' had status 1 Can anyone shed some light on what this error message means and how to fix it?Cheers Brett
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