[Qgis-user] Distance calculation Matrix

[Jonathan Moules]

Hi List,
I have a collection of ~2,500 points in British National Grid. I want to
calculate the distance between all of them to all of them.
QGIS 2 has two tools for this as best I can tell:

Processing -> "Distance matrix"
Results:

- "Linear" matrix type: Nothing happens whatsoever. No errors, no outputs,
nothing. The dialog just disappears.

- "Standard" matrix type: I get a wall of Python error message:

> Traceback (most recent call last):
> File
> "C:/PROGRA~1/QGISDU~1/apps/qgis/./python/plugins\processing\core\GeoAlgorithm.py",
> line 150, in execute
> self.processAlgorithm(progress)
> File
> "C:/PROGRA~1/QGISDU~1/apps/qgis/./python/plugins\processing\algs\ftools\PointDistance.py",
> line 98, in processAlgorithm
> self.regularMatrix(inLayer, inField, targetLayer, targetField, nPoints,
> progress)
> File
> "C:/PROGRA~1/QGISDU~1/apps/qgis/./python/plugins\processing\algs\ftools\PointDistance.py",
> line 178, in regularMatrix
> data.append(unicode(outFeat.attributes[outIdx]))
> TypeError: 'builtin_function_or_method' object has no attribute
> '__getitem__'


 Summary: Absolutely nothing happens again


=========
There's also a SAGA tool "Distance matrix". With this one I get an error
like:

 The following output layers could not be open
> Distance Matrix Table:
> C:\Users\jmou1\AppData\Local\Temp\processing\cb88ea8b51994f1cbfe5549465bc949f\TABLE.csv


Despite it being a location I can write to. That's using the temporary
output. If I specify an output location myself, I get the same error.


So basically, it's not working; can anyone advise what I'm doing wrong? How
do I use these tools? I've got three different failure modes here, which
isn't very encouraging.

Cheers,
Jonathan

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