Give two vectorised area data sets, How to generate intersect areas properly
in QGIS with use of Grass v.overlap?
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I encountered following problems with Intersection by using Grass's v.overlay.
I used 2 vector area maps to create a new map through intersection (or option
used).
The number of new polygonal areas of the output each time is different.
Inconsistent output.
I kept encountering Error 6: Failed t
, 17:16, Kirk Schmidt
wrote:
Oh, that's simple. In the upper word menu, under Vector>Geometry Tools>
Select Multipart to single part. Repeat this for all you polygon layers and
then your merge should work (I assume you are trying to merge the layers).
On 1/16/2018 12:48 PM
tools to convert from
one type to another.
On 1/16/2018 7:53 AM, David Shi wrote:
How to resolving this issue?
Regards,
David
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How to resolving this issue?
Regards,
David
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Is there any Areal Interpolation code in QGIS?
Regards,
David
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In QGIS's geoalgorithms, there is an Intersection in Vector overlay tools.
Can anyone tell me where to find the original code?
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QgsVectorFileWriter.writeAsVectorFormat(outlayer, "my_shapes.shp", "system",
\QgsCoordinateReferenceSystem(4326), "ESRI Shapefile")
I used above command, after capturing a layer as outlayer as the result of
processing.
However, there is no file, and no error message.
Can anyone help?
Regards.
Dav
Hello, Jurgen,
It only worked once. Then, it can not find other modules.
How to set a top level path, so that Python will look for modules in any
sub-directories.
Regards.
David
On Wednesday, 4 May 2016, 13:45, David Shi wrote:
Do you mean run python-qgis.bat in command window?Then
Do you mean run python-qgis.bat in command window?Then, run my
script?Regards.David
On Wednesday, 4 May 2016, 13:14, Jürgen E. Fischer wrote:
Hi David,
On Wed, 04. May 2016 at 12:07:51 +, David Shi wrote:
> Thank you.
> I am using QGIS in Windows. Do I need to set paths?
N
On Wednesday, 4 May 2016, 12:50, Jürgen E. Fischer wrote:
Hi David,
On Wed, 04. May 2016 at 11:43:24 +, David Shi wrote:
> How to set python search path for standalone script?
>
> I am writing a standalone script, but it can not import qgis.core and other
> processing.
Hello, Jürgen
Thank you.
I am using QGIS in Windows. Do I need to set paths?
Regards.
David
On Wednesday, 4 May 2016, 12:49, Jürgen E. Fischer wrote:
Hi David,
On Wed, 04. May 2016 at 11:43:24 +, David Shi wrote:
> How to set python search path for standalone script?
>
How to set python search path for standalone script?
I am writing a standalone script, but it can not import qgis.core and other
processing. modules.
Can any one advise me?
Regards.
David___
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Hello,
Can anyone provide references for writing standalone QGIS script?
There are a lot of confusing posts on the Internet, regarding that Python
cannot find qgis.core and etc.
Thank you in advance.
Regards.
David___
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