How to simplify boundary geometries in shapely
I'm working with shapely to do GIS, but I'm running into memory errors when loading the geometry of each zip code into memory because the geometry is so jagged and complicated.
I'd like to make the shape smaller in memory by reducing the number of boundary points as low as possible without distorting the shape too much. Using the convex hull seems like one potential answer, as could simply throwing away lots of points from the boundary. I'm wondering if there's something already out there that solves this problem.
python gis shapely
asked Apr 3 '14 at 14:01
Michael KMichael K
68521640
add a comment |
I'm working with shapely to do GIS, but I'm running into memory errors when loading the geometry of each zip code into memory because the geometry is so jagged and complicated.
I'd like to make the shape smaller in memory by reducing the number of boundary points as low as possible without distorting the shape too much. Using the convex hull seems like one potential answer, as could simply throwing away lots of points from the boundary. I'm wondering if there's something already out there that solves this problem.
python gis shapely
asked Apr 3 '14 at 14:01
Michael KMichael K
68521640
add a comment |
I'm working with shapely to do GIS, but I'm running into memory errors when loading the geometry of each zip code into memory because the geometry is so jagged and complicated.
I'd like to make the shape smaller in memory by reducing the number of boundary points as low as possible without distorting the shape too much. Using the convex hull seems like one potential answer, as could simply throwing away lots of points from the boundary. I'm wondering if there's something already out there that solves this problem.
python gis shapely
asked Apr 3 '14 at 14:01
Michael KMichael K
68521640
I'm working with shapely to do GIS, but I'm running into memory errors when loading the geometry of each zip code into memory because the geometry is so jagged and complicated.
I'd like to make the shape smaller in memory by reducing the number of boundary points as low as possible without distorting the shape too much. Using the convex hull seems like one potential answer, as could simply throwing away lots of points from the boundary. I'm wondering if there's something already out there that solves this problem.
python gis shapely
python gis shapely
asked Apr 3 '14 at 14:01
Michael KMichael K
68521640
asked Apr 3 '14 at 14:01
Michael KMichael K
68521640
asked Apr 3 '14 at 14:01
Michael KMichael K
68521640
asked Apr 3 '14 at 14:01
Michael KMichael K
68521640
asked Apr 3 '14 at 14:01
Michael KMichael K
68521640
68521640
add a comment |
add a comment |
1 Answer
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oldest
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Try using the geometry's simplify method, specifying a tolerance distance.
edited Nov 28 '18 at 16:43
Luc M
13717
answered Apr 21 '14 at 23:56
Mike TMike T
23.5k1293128
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Try using the geometry's simplify method, specifying a tolerance distance.
edited Nov 28 '18 at 16:43
Luc M
13717
answered Apr 21 '14 at 23:56
Mike TMike T
23.5k1293128
add a comment |
Try using the geometry's simplify method, specifying a tolerance distance.
edited Nov 28 '18 at 16:43
Luc M
13717
answered Apr 21 '14 at 23:56
Mike TMike T
23.5k1293128
add a comment |
Try using the geometry's simplify method, specifying a tolerance distance.
edited Nov 28 '18 at 16:43
Luc M
13717
answered Apr 21 '14 at 23:56
Mike TMike T
23.5k1293128
Try using the geometry's simplify method, specifying a tolerance distance.
edited Nov 28 '18 at 16:43
Luc M
13717
answered Apr 21 '14 at 23:56
Mike TMike T
23.5k1293128
edited Nov 28 '18 at 16:43
Luc M
13717
edited Nov 28 '18 at 16:43
Luc M
13717
edited Nov 28 '18 at 16:43
Luc M
13717
13717
answered Apr 21 '14 at 23:56
Mike TMike T
23.5k1293128
answered Apr 21 '14 at 23:56
Mike TMike T
23.5k1293128
answered Apr 21 '14 at 23:56
Mike TMike T
23.5k1293128
23.5k1293128
add a comment |
add a comment |
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