Changes between Initial Version and Version 1 of Ticket #6395


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Timestamp:
Mar 3, 2016, 1:43:14 AM (8 years ago)
Author:
poulet1212
Comment:

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  • Ticket #6395

    • Property Version unspecified → 1.11.3
    • Property Component default → GDAL_Raster

  • Ticket #6395 – Description

    initial v1  
    33gdalwarp -ot Float32 -co "tfw=yes" -dstnodata 0 -s_srs EPSG:21781 -t_srs EPSG:4326 src dest
    44
    5 The result seem to be good as first glance, but problems appear as i perform a slope analysis on another software (either arcmap or QGis). Look the two attached file, one is the analysis on the original data and the other the reprojected data. You can clearly see some artefacts on the image.
     5The result seem to be good as first glance, but problems appear as i perform a slope analysis on tjhe resulting file with either arcmap or QGis. Look the two attached file:
     6- slope_analysis_without_artefact.PNG is the analysis performed one the original data
     7- slope analysis with artefacts.PNG​ is the analysis performed on the reprojected data. You can clearly see some artefacts on the image.
    68
    79The same problem also appears if if resample the data to a bigger cell size.
    8 
    9 I use GDAL 1.11.3.