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Size: 880
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← Revision 7 as of 2021-09-13 13:24:40 ⇥
Size: 1236
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| * Does not require any special SPC setup | * Requires a MAPFILES directory one level down from the directory with the IMG DTM |
| Line 29: | Line 29: |
| .01 650 1737.4 # GSD, Q, radius (Bob used Lunar Datum, not sure how much you can deviate from this) | .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) |
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== 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. |
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 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 29.40From 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.