sarproz-group

user defined DEM

This topic contains 3 replies, has 2 voices, and was last updated by  cnu_lee 2 years, 3 months ago.

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  • #1246

    cnu_lee
    Participant

    Hi, Pro. Daniele,

    I used two stereo images to obtain a DSM image,I imported the DSM into sarproz instead of SRTM.

    But my research area couldn’t be found from the DEM, the screenshot didn’t show the area that should be made up of four “X mark”.

    Did it mean the DSM wasn’t correct ?

    • This topic was modified 2 years, 3 months ago by  cnu_lee.
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  • #1259

    periz
    Keymaster

    I am afraid we need to check the data together
    Can we talk on skype?

    • #1263

      cnu_lee
      Participant

      Thank you sir.

      I’m sorry I was offline last night.Today I’m available waiting for you. Please contact me when you are online.Thanks.

  • #1264

    cnu_lee
    Participant

    Thanks for the help from Pro.Daniele and Dr. yuxiao. The problem has been solved.

    Firstly,ensure the DEM is bigger than research area. The research area should be checked carefully. It must be smaller than the user defined DEM, or it will not be processed successfully follow-up.

    Secondly, the problem is coordinates transformation.My first-time DEM is in UTM projection,and all parameters could be filled automatically in “DEM source selection”, so it looks OK . But in “DEM visualization” window, no X mark covering research area can be found.

    Try to save the DEM in geographic coordinate instead of UTM and import the DEM again in the previous method. Then, the problem was solved. And in “DEM visualization ” window, the research area appears.

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