Le samedi 07 juin 2014 22:31:09, Sam Franklin a écrit : > Hey Even - me again on this xyz sorting issue. > > I've got a new xyz file that it is not recognised by gdal even after using > the sort command you provided earlier in the thread. > > The problem xyz is here | > https://dl.dropboxusercontent.com/u/4086367/001-1.xyz.zip > > The error is: > ERROR 1: Ungridded dataset: At line 363, X is 568509.090000, where as > 568514.090000 was expected (1) > gdalinfo failed - unable to open '001-1.xyz'. > > GDAL seems to fail at the start of a new row of data? > > I've tried various descend/ascend combinations of the columns = no joy. > > I'm running GDAL 1.11.0 on OSX 10.9.3. > > Any ideas? Thanks again in advance for any help! Very much appreciated.
The development version 2.0dev has improvements over 1.11 that would help a bit, but this file would still require additional developments since the spacing between horizontal or vertical coordinates isn't constant due to rounding to 2 decimal figures. Some tolerance should be added to the driver to support it. > > Cheers > Sam > > > On 27 May 2014 14:09, Sam Franklin <[email protected]> > > wrote: > > Hi Even. Great, that worked for me too when sorting on both columns. > > Really appreciate you help. > > Sam > > > > On 27 May 2014 01:31, Even Rouault <[email protected]> wrote: > >> Le mardi 27 mai 2014 00:06:33, Sam Franklin a écrit : > >> > Hey Even - great tip. The sort command you suggested worked well with > >> > >> that > >> > >> > xyz dataset. > >> > > >> > However, I've found a further dataset that does not work with gdal > >> > even after the sort. This is the error: > >> > > >> > mbp-sf:data08 samfranklin$ gdal_translate data08-02-sorted.xyz > >> > data08-02.tif > >> > Input file size is 4371, 11210 > >> > 0...10...20...30...40.ERROR 1: At line 1100207, found 48162.000000 > >> > >> instead > >> > >> > of 48164.000000 for nBlockYOff = 4951ERROR 1: data08-02-sorted.xyz, > >> > >> band 1: > >> > IReadBlock failed at X offset 0, Y offset 4951 > >> > > >> > ERROR 1: GetBlockRef failed at X block offset 0, Y block offset 4951 > >> > > >> > See screenshot below, the data is arranged into three 'strips'. See > >> > >> dropbox > >> > >> > link to the data | > >> > https://dl.dropboxusercontent.com/u/4086367/data08-02.xyz.zip > >> > > >> > Any workaround you can think of? > >> > >> Probably an issue with just sorting on column 2. I didn't have the same > >> error > >> as you, but anyway you should try : > >> > >> sort -nk 2 -nk 1 data08-02.xyz > data08-02-sorted.xyz > >> > >> with that I manage to translate the file. > >> > >> -- > >> Geospatial professional services > >> http://even.rouault.free.fr/services.html -- Geospatial professional services http://even.rouault.free.fr/services.html _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
