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this is second part of How to convert VICAR data to TIFF.

I was able to get the VICAR data into TIFF form by using VICAR2isis to make a .cub then gdal to make a tiff. (Yes i eventually found out I could have just done it with gdal once but I didn't know yet, I'm new).

That worked, but now when I open the TIFF in ArcGIS Pro, it looks like the map is wrapped differently than other basemaps I have. For example, this is what it should look like: enter image description here

But it actually looks like this: enter image description here

As you can see the three volcanos in the shaded relief don't match the three volcanos in the lower image.

How can I fix this using ISIS, GDAL, python etc.?

I tried running this code but it didn't work:

gdalwarp -t_srs MarsMOLAEQC ti16.tif ti16_2.tif -wo SOURCE=EXTRA=1000 --config CENTER_LONG 0

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  • gdalinfo gives me this: Size is 2880, 1440 Origin = (-180.000000000000000,90.000000000000000) Pixel Size = (0.125000000000000,-0.125000000000000) Image Structure Metadata: INTERLEAVE=BAND Corner Coordinates: Upper Left (-180.0000000, 90.0000000) Lower Left (-180.0000000, -90.0000000) Upper Right ( 180.0000000, 90.0000000) Lower Right ( 180.0000000, -90.0000000) Center ( 0.0000000, 0.0000000) Band 1 Block=2880x1 Type=Int32, ColorInterp=Gray Min=25.000 Max=602.000
    – GISGirl94
    Aug 27, 2023 at 1:15
  • mars srs can be found here: spatialreference.org/ref/iau2000/49910
    – GISGirl94
    Aug 27, 2023 at 1:31

1 Answer 1

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I couldn't get --config center_long 0 to do anything. An alternative is to split, swap and merge.

E.g. ti16 is the orig VICAR data

gdal_translate -srcwin 0 0 1440 1440 -a_ullr 0 90 180 -90 ti16 ti16_right.vrt
gdal_translate -srcwin 1440 0 1440 1440 -a_ullr -180 90 0 -90 ti16 ti16_left.vrt
gdalbuildvrt ti16.vrt ti16_left.vrt ti16_right.vrt
gdal_translate ti16.vrt ti16.tif 

enter image description here

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  • you have been so helpful! thank you, just tried it and it works :D
    – GISGirl94
    Aug 27, 2023 at 22:04

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