= PDS2BIG =

 * This is a program R. Gaskell wrote to ingest a PDS IMG DTM into a bigmap. Was written specifically for LRO products such as the type found [[http://wms.lroc.asu.edu/lroc/view_rdr/NAC_DTM_ALDROVANDI|here]].
 * Requires a MAPFILES directory one level down from the directory with the IMG DTM

Example of terminal with input and output

{{{
<rand> aldrovandiStart$ ~/X-files/source/PDS2BIG.e
 InputIMG file
NAC_DTM_ALDROVANDI_E256N0291.IMG
 Input 6 character BIGMAP name
TEST07
 Input ltd, elng (deg)
26.160 29.075
 scale, qsz, R0
.01 650 1737.4
      3222     11963     12888
        1737.40        6064.67
          24.58          26.55
          28.81          29.40
}}}

From above, showing only the input values
{{{
NAC_DTM_ALDROVANDI_E256N0291.IMG
TEST07
26.160 29.075
.01 650 1737.4 # GSD of final bigmap in kilometers, Q of final bigmap, body radius (Bob used Lunar Datum, not sure how much you can deviate from this)
}}}

== Troubleshooting ==
If you are getting this error...
{{{
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG
}}}

check lat and lon to make sure at least some of the IMG pixels are present in the locations you've specified.