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Closed inverted ULY / LRY in ExtractROI application
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  • inverted ULY / LRY in ExtractROI application

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  • Closed Issue created by Nicolas Narçon

    Hi all,

    I am using the ExtractROI application but I do not understand the expected order of Upper Left and Lower Right Y coordinates.

    For example, let's consider the image at Data/Input/QB_Toulouse_Ortho_XS.tif which has UTM31 CRS.

    gdalinfo on this image gives :

    Corner Coordinates:
    Upper Left  (  374149.981, 4829183.994) (  1d26'26.19"E, 43d36'18.00"N)
    Lower Left  (  374149.981, 4828883.994) (  1d26'26.44"E, 43d36' 8.28"N)
    Upper Right (  374449.981, 4829183.994) (  1d26'39.57"E, 43d36'18.19"N)
    Lower Right (  374449.981, 4828883.994) (  1d26'39.82"E, 43d36' 8.47"N)

    When using ExtractROI using the above corner coordinates 'as is':

    otbcli_ExtractROI -in QB_Toulouse_Ortho_XS.tif -mode extent -mode.extent.unit phy -mode.extent.uly 4829183.994 -mode.extent.lry 4828883.994 -mode.extent.ulx 374149.981 -mode.extent.lrx 374449.981 -out extracted.tif

    this fails, saying Extent coordinates are inverted!.

    It seems that ExtractROI expects LowerRightY > UpperLeftY whereas it should be the opposite.

    Am I missing something or is there a bug inside ExtractROI ?

    Edited by Nicolas Narçon

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