Dear Uwe,
shape-file format is a proprietary format and we sometimes observe that
huge shape-files perform better (faster) in ESRI software.
I work a lot with shape-files, but the problem you describe I never had.
If you have ArcGIS license you can manipulate the shape-file there. If
you don't have you will do it in QGIS or any other open-source GIS software.
That is all to say about competition. If you had a version of ArcView
you might have detected even more problems when working with huge
shape-files, although it always was very fast.
ciao Dieter
On 19.01.2016 20:09, Uwe Fischer wrote:
Hello all,
today I was working on a shape dataset and I had to delete some
features. Later I opened the shapefile in ArcMap by chance and I found
that the features were not deleted. They still did exist. I repeated
the process – and got the same result. Then, searching the internet, I
found this incredible post: https://hub.qgis.org/issues/11007
It is a well known problem (for 1,5 years!!) that /_QGIS is not able
to delete shapes in a reliable way_/!! I was horrified to read this
because it is the same as if a Word processor would not be able to
delete a letter from a text. I cannot understand why the QGIS
developers haven’t fix that yet. If QGIS really wants to compete with
ArcMap, they should fix it as soon as possible. At least, the
according menu entries or buttons should be inactivated if they don’t
bring out reliable results.
My questions are:
·is this information still up to date? I can‘t read all of the 80
answers to the post now to get in-depth information ...
·does anybody have information about how they are planning to handle
this problem at the development team?
·is there a workaround for this? Do the GRASS vector tools bring out
reliable results?
·are there more of those software errors in QGIS that might lead to
huge problems in working on vector data and sharing them with others?
If so, is there a „black list“ of things one is never allowed to use
in QGIS if you don’t want to destroy your datasets?
Regards,
Uwe Fischer
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