I just found the "checking tool" of geometry in the Vector menu of QGIS.
It tells me "Unknown geometry type 0", "The geometry has 1 error".
But in my algorithm, I put 5 as type, as explained in specifications.
From where comes this 0 ? ...
Regards,
JCB
Le 21/03/2016 10:16, Jean-Christophe Bastin a écrit :
Thank you for the answer Maximilian
Indeed, the Python console shows me None for some geometries.
Do you know any tool that can analyse what's wrong with the shape ?
Maybe something that can translate the shp file into a readable format
according to specifications from
https://www.esri.com/library/whitepapers/pdfs/shapefile.pdf ?
Regards,
JCB
Le 18/03/2016 14:54, Maximilian Krambach a écrit :
For the one shape I get 7 valid and one "none" geometries (the last
feature).
for the other shape, just a "none" geometry
It seems that some "end of file" is off.
Function I used with the python console in QGIS:
layer = iface.activeLayer()
for feature in layer.getFeatures():
print feature
print feature.geometry()
print layer.featureCount()
Am 18.03.2016 um 14:18 schrieb Jean-Christophe Bastin:
Hi QGIS Developers :-)
I asked some help on QGIS support, but they told me that I don't ask my
question at the right place, and that I should go througth developers
email list.
That's why I'm here. So let me explain what's going on.
I developped an application with a class able to read data from an
Oracle database with MapXtreme (MapInfo), and convert them in
Shapefile.
This class follows the ESRI specifications from here :
https://www.esri.com/library/whitepapers/pdfs/shapefile.pdf
You can find in attach 2 samples that I tried to open in QGIS :
- 4480___S12_060_4 : there is only one polygon, but it is not displayed
on the map
- 4480___327550 : there are 8 polygons in this one, and all of them are
well displayed
The strange thing is that the polygon from "4480___S12_060_4" is common
with "4480___327550", but in one case it is not shown, and in the other
case it is shown.
I have no problem when I open these files with MapInfo.
I don't have ArcMap to check on this side.
The support told me they were not able to open my files with SAGA,
but I
downloaded SAGA GIS 2.2.3 and was able to open the file without any
issue...
According to QGIS support, it looks like an issue in my creation
algorithm, but I really don't see what's wrong, it seems to follow well
the ESRI specifications.
I'm not a "GIS expert", so maybe some of you could help me to discover
what's wrong.
Or if you have any GIS tool that can tell me what's not correct in my
shapefile, it could really help me.
You can find in attachment the source code of my class in VB.Net.
Many thanks !
Regards,
JCB
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