Global Mapper Pro

Imagery to elevation, saving scripts

Skip PackSkip Pack Global Mapper UserPosts: 7
edited October 2011 in Technical Support
Hello,

I am working with some 36 band hyperspectral .tif files (with tfw files) containing
16 bit data for each band. I would like to move these to in-process ascii outputs
in and x, y, z, b1, b2 . . . . b36 format, or write out one .bil elevation file. Is there
a way to write out image data into an elevation output or to simply export to ascii
as described above?

Alternatively, I have exported a single band to a .bil image file. I can handle those
outputs with other tools I have. If I could capture the script file that does this, I
could encapsulate it in larger scripts much more quickly than I will be able to develop
such a GML script from scratch.

thanks for your help,

Skip Pack

Comments

  • global_mapperglobal_mapper Administrator Posts: 17,238
    edited October 2011
    Skip,

    While there isn't a way to directly export a text file like that, you can export your hyperspectral imagery to a 36-band BIL file using the File->Export Raster Data menu command. You can also do this in a script using the EXPORT_RASTER script command.

    Let me know if I can be of further assistance.

    Thanks,

    Mike
    Global Mapper Support
    support@globalmapper.com
  • Skip PackSkip Pack Global Mapper User Posts: 7
    edited October 2011
    Thanks for your response. I generated the following script:

    GLOBAL_MAPPER_SCRIPT VERSION=1.00
    UNLOAD_ALL

    IMPORT FILENAME="I:\neptec\first36\aoi\test\1625.tif" \
    TYPE=GEOTIFF

    EXPORT_RASTER FILENAME="I:\neptec\first36\aoi\test\1625.bil" \
    TYPE=BIL \
    GEN_WORLD_FILE \
    GEN_PROJ_FILE \
    PALETTE=MULTIBAND \
    NUM_BANDS=1 \
    BAND_BIT_DEPTH=32 \
    BAND_EXPORT_SETUP=1?1?

    UNLOAD_ALL
    _____________________________________________________

    and it runs to completion with a couple of anomalies. In this case, I want to
    export a single band from a 36 band hyperspectral .tiff file to the .bil file.
    The .bil file itself seems fine. The first anomaly is that, in spite of the
    command to produce a world file, it does not do so. Since that file would
    be exactly the same as the .tfw file, I can make a copy and change the
    suffix to .blw. The second anomaly is that the .hdr file reflects 3 bands
    while I only want one. I can text edit that entry to "1" and go forward.
    Please let me know if changes to my script would clear these up.

    thanks,

    Skip
  • global_mapperglobal_mapper Administrator Posts: 17,238
    edited October 2011
    Skip,

    You need to use GEN_WORLD_FILE=YES and GEN_PROJ_FILE=YES to get those added.

    What version of Global Mapper are you using? Your script generates a band count of 1 in the .hdr file for me in v13.00.

    Thanks,

    Mike
    Global Mapper Support
    support@globalmapper.com
  • Skip PackSkip Pack Global Mapper User Posts: 7
    edited October 2011
    I just added the "=YES" to the two file generation commands and reran the script.
    Strangely, the .hdr file now reflects just one band, correctly. I have GM 13 built on
    27 September. The other difference in the two runs is that the first was done in
    a command window on the command line (GlobalMapper13.exe test1.gms), and the
    run just now was made using the run script option from the interface. I'm good to
    go forward now.

    Thanks,

    Skip
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