[Qgis-user] DEM error with OpenDataNRW

Kai Borgolte Kai.Borgolte at gmx.de
Mon Nov 16 08:26:15 PST 2020


Am 16.11.2020 um 15:49 schrieb Prof. Dr. Martin Berchtold:

> could somebody please explain me why QGIS doesn't process the DEM1 data from OpenDataNRW (.xyz, 1 meter, Nordrhein-Westfalen)

Content of the files is like this:

32490000.00 5744000.00  258.95
32490000.00 5744001.00  259.09
...
32490000.00 5745999.00  321.90
32490001.00 5744000.00  259.04
...
32491999.00 5745999.00  410.93

So IMHO there are two problems reading these files:

1. Data is organized columnwise. While
<https://gdal.org/drivers/raster/xyz.html> doesn't state it explicitly,
I think GDAL expects data rowwise.

2. X values have a leading "32". To read coordinates with EPSG 25832
this "32" must be deleted.
--
Kai Borgolte, Bonn


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