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  • 1.  clip raster

    Posted 12-20-2021 07:28
    Hi
    For some reason, clip raster no longer works.
    * .MRR raster and polygon are in the same projection,
    and in the same place spatially (also visually).
    But I get an answer "no overlap found between raster and clip extent"
    and nothing happens.
    Has anyone encountered such an error? Could it be caused by the Windows updates
    or ...?

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    Tambet Kikas
    GallusGeo OÜ
    Kuressaare
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  • 2.  RE: clip raster

    Employee
    Posted 12-21-2021 08:21
    HI
    I recall seeing this issue in an earlier version of MapInfo Pro. I haven't seen it lately - or maybe I just haven't used the Clip tool in the later versions.

    What version of MapInfo Pro are you on?

    ------------------------------
    Peter Horsbøll Møller
    Principal Presales Consultant | Distinguished Engineer
    Precisely | Trust in Data
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    Original Message


  • 3.  RE: clip raster

    Posted 12-22-2021 06:49
    Hi
    Version19.3, bundle with Datamine Discover.

    If I take a new scanned image file and will start with georeferencing etc. then this error will occur.

    I've probably found what's causing the problem. The original image files have been converted to two-color
    and compressed, that's probably behind the whole thing.
    Everything works with older existing rasters and if I use some other not compressed and resampled images.

    All the best
    Tambet











    Original Message


  • 4.  RE: clip raster

    Employee
    Posted 12-28-2021 04:47
    Hello Tambet,

    Thanks for sharing this info. How are you georeferencing the scanned image files?

    No overlap error generally comes when polygons and Raster are not in the same place. It also depends on how the Raster files are georeferenced. If raster registration info is stored externally in the TAB file and Raster tool is unable to read it correctly then also this issue may come. Compression or conversion to two-color should not result in this error.

    Our suggestion would be to use warp image tool (Raster->Raster Operations->Warp Image) to georeference the scanned files and then use clip tool. Hopefully this should work.

    Thanks
    Anshul

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    Anshul Goel
    Pitney Bowes Software Inc.
    Shelton CT
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    Original Message


  • 5.  RE: clip raster

    Posted 12-28-2021 05:37
    Hi
    "Our suggestion would be to use warp image tool (Raster->Raster Operations->Warp Image)...."
    Yes, that's exactly what I do,  problems occurred with these 2 color transparent images only.
    There are no problems when using RGB full color image file.

    All the best
    Tambet Kikas




    Original Message


  • 6.  RE: clip raster

    Employee
    Posted 12-28-2021 06:26
    Thanks @Tambet Kikas, if that's the case I would suggest you to please reach out to our technical support team at support@precisely.com. Please provide all relevant information to reproduce the issue and we would be able to look into it further.​

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    Anshul Goel
    Pitney Bowes Software Inc.
    Shelton CT
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    Original Message


  • 7.  RE: clip raster

    Employee
    Posted 12-21-2021 09:39

    Can we have a sample of input MRR and polygon file?



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    sujit thakur
    Pitney Bowes Software Inc.
    Shelton CT
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    Original Message