Markus Neteler wrote:
Some comments:
It now spends its time in (as you will know).
Break boundaries: ...
and
Building areas...
Yes, that's unchanged and behaves as before. Break boundaries can be
made faster with boundary splitting.
and then after having created the temporary topology and before
the final topology (not sure what's doing there, no screen output after
Layer: usr_urb
and the beast is at 100% CPU for a while, then it continues with
-----------------------------------------------------
-----------------------------------------------------
Building topology for vector map <tmp>...
Registering primitives...
Here it also spends looot of time - could that be another candidate?
There is some potential for improvement. I could sometime soon put a new
version of v.in.ogr in trunk that optionally uses boundary splitting,
which could not only speed up breaking boundaries, but also topology
building. Independent of that, topology is built by v.in.ogr more often
than actually needed, also a time killer with large imports.
Markus M
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