[GRASS-user] v.isochrones : error message

[image93]

Hello

I just tried a new test with a resolution = 10 and only one start point
(step time = 5).
Below, please read my command : 

v.isochrones bd_osm_isochronie_ROAD_93 start=x_centroid_v3 time_steps=5
isochrones=isochrones method=r.cost cost_column=speed_prof


 The process seems to be long. The interface prompt command shows the
following message: 
--------------------------------------------------------------------------------
Reading features...
Writing raster map...
Pass 3 of 735:
Reading features...
Writing raster map...
Pass 4 of 735:
Reading features...
Writing raster map...
Pass 5 of 735:
Reading features...
Writing raster map...
Pass 6 of 735:
Reading features...
Writing raster map...
Pass 7 of 735:
Reading features...
Writing raster map...
Pass 8 of 735:
Reading features...
Writing raster map...
----------------------------------------------------------------

What is the meaning of these 735 features? I have only one start point. How
to speed up the process? I'm surpised because when i ran the same process
during last april, the process was quickly...;-(





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