Hi all I have made a few tests of GDAL 2.2.0 on Ubuntu 16.04 with QGIS 2.14.14 and have found out that most geoprocessing tools implying 2 layers (clip, difference, intersection, etc.) wrongly give empty geometries when the data is in CRS EPSG:7694 (*Kyrg06-3*, newly added CRS to GDAL in 2.2.0). Same behavior with QGIS 2.18.11 with GDAL 1.11.3
For example, when using the Tool *Vector - Geoprocessing tools - Difference* the difference between 2 layers gives an empty geometry. Using the same tool on the same data with the CRS 32643 (*WGS84 UTM43N*) gives correct results. I have communicated on the Ubuntugis mailing list and got the following feedback from Even Rouault: *I've run ogrinfo -al shp > log.txt on your dataset with GDAL 2.2 and GDAL 2.1 and get almost the same results. The only difference is that GDAL 2.2 now reports the SRS of layers kyrgyzstan_UTM43N and rayons_UTM43N with an explicit EPSG:32643 code, which is an intended change of GDAL 2.2, and I wouldn't think that would cause issues to QGIS. So my feeling is that the issue is more with the processing tool itself, or a subtle issue in the integration of QGIS&GDAL.* Test dataset (in both CRS) here: http://www.henriod.info/share/shp.zip Is it something to be reported as a QGIS bug? Can you reproduce this behavior? Thanks and cheers Stéphane -- “When you travel, remember that a foreign country is not designed to make you comfortable. It is designed to make its own people comfortable." -- Clifton Fadiman
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