NoiseModelling
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Universite-Gustave-Eiffel
Is the receivers::Delaunay_grid function very very slow?
NoiseModelling version 4.0.2
Describe the bug when I use the receivers::Delaunay_grid, I found it is very very slow
To Reproduce Steps to reproduce the behavior:
- load BUILDINGS, ROADS and GROUND_TYPE, POINT_SOURCE(Official provided files)
- Fill the two following mandatory parameters in receivers::Delaunay_grid function: Source table name : POINT_SOURCE Buildings table name : BUILDINGS
- click run process
- I see noisemodelling will compute 16777216 times for delaunay, very very slow
It looks like will cost several days time
Hi, Can you give us more details, in particular which tutorial you used ? Are you talking about this one ?
You probably put a veryyyyy short propagation distance? Did you change some default parameters ?
Ok. I guess you followed the tutorial Noisemap from point source ?
If so, I just repeat the exercice and I takes less than 1s to produce the triangulation
Maybe your problem comes from the SRID associated to the input files ? This dataset has to be 2154 (french legal one)
Hi, Can you give us more details, in particular which tutorial you used ? Are you talking about this one ?
https://noisemodelling.readthedocs.io/en/latest/Noise_Map_From_Point_Source.html I did it with reference to this example
Ok. I guess you followed the tutorial Noisemap from point source ? If so, I just repeat the exercice and I takes less than 1s to produce the triangulation
Maybe your problem comes from the SRID associated to the input files ? This dataset has to be
2154(french legal one)
Yes, I followed the tutorial
Hi, I used:
-
buildings.shp which is in the folder
.../NoiseModelling_4.0.2/data_dir/data/wpsdata/ -
Point_Source.geojson, which is in the folder
.../NoiseModelling_4.0.2/data_dir/data/wpsdata/TutoPointSourceDirectivity/
If you try with your own dataset, you just have to be sure that both files are in the same (metric) projection system