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visits member for 2 years, 5 months
seen Dec 22 '13 at 0:05

8h
awarded  Self-Learner
Jul
2
awarded  Curious
May
6
awarded  Popular Question
Mar
10
awarded  Yearling
Jan
28
awarded  Popular Question
Aug
28
answered Select linestrings containing points with duplicating M coordinates in postgis
Aug
28
asked Select linestrings containing points with duplicating M coordinates in postgis
Jun
26
comment How to determine intersection between geojson feature and given coordinates?
I guess using points (or centroids) is risky, because a cursor can cross a line somewhere between vertexes and the function won't find it.
Jun
26
comment How to determine intersection between geojson feature and given coordinates?
Thanks. I've used vector tiles with TileStache. Currently, I could get best performance with adding a utfgrid layer with feature id's in hitgrid. So when I hit a pixel with a specific feature in a grid, I add a corresponding feature from geojson to a map. But this way adds an overhead of loading utfgrid tiles (plus some server overhead to render this tiles). So I thought I can do this check directly in javascript without loading utfgrid tiles. quadtree looks interesting, but does it mean I have to cycle through it somehow on each mousemove to get a needed feature?
Jun
26
asked How to determine intersection between geojson feature and given coordinates?
Mar
31
asked How to perform SIA or Bezier line smoothing in PostGIS?
Feb
13
accepted How to use -lco options in gdal_contour?
Feb
8
comment How to use -lco options in gdal_contour?
Sure, doesn't work anyway.
Feb
6
comment How to use -lco options in gdal_contour?
Maybe so, but removing -nln doesn't let me put -lco
Feb
5
asked How to use -lco options in gdal_contour?
Jan
23
accepted How to avoid corrupt geometries when translating between TopoJSON and GeoJSON?
Jan
23
asked How to avoid corrupt geometries when translating between TopoJSON and GeoJSON?
Dec
25
awarded  Teacher
Oct
30
awarded  Nice Question
Oct
30
accepted How to reproject raster from 0 360 to -180 180 with cutting 180 meridian