sarproz-group

Importing user defined DEM

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    • #1047
      matusbakon
      Participant

        Hi,

        I have problem with importing precise DEM from LIDAR measurements:

        Bad property value found.
        Object Name: axes
        Property Name: ‘XLim’
        Values must be increasing and non-NaN.

        I’ve tried to produce TIFF file with different coordinate systems (WGS-84, UTM) and vertical datums, and I’ve checked that there are no data gaps or NaN values in Z-coordinate. Anybody had experienced same issue before? Are there any clues or prerequisites to keep in mind while importing user defined DEM?

        Thanks you

        Matus

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      • #1050
        matusbakon
        Participant

          DEM visualisation seems alright, however producing Synthetic Amplitude gives empty space

        • #1051
          matusbakon
          Participant

            https://www.dropbox.com/s/xxzg5lkk60xq8tr/10_Aug_2015_20_29_20_sarproz.log?dl=0
            https://www.dropbox.com/s/1c16o7ozj6a3447/lasterror.mat?dl=0

            sorry for spam, i couldn’t upload lasterror.mat and log file

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          • #1053
            periz
            Keymaster

              hi Matus,

              the DEM you are showing is clearly smaller than the area you are analyzing.
              this is not a good situation, since you are analyzing points where the DEM is not defined.
              Which DEM value do you want to assign to the points where the DEM is not defined?
              Think about it and solve it using an external tool to manipulate your DEM.
              Or otherwise select a SAR area contained in your DEM.

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