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Results tagged with shapefile
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user 16814
A vector data storage format for storing the location, shape, and attributes of geographic features. Often referred to as 'an ESRI shapefile', as ESRI developed it.
5
votes
1
answer
915
views
Shapefile and DEM: check rivers behaviour
Basically, I want to check that my rivers (stored as polylines in my shapefile) behave like "natural" water flow, meaning that it mainly go downstream, can not go uphill first and downhill then, etc... …
- 445
4
votes
1
answer
997
views
How to determine correlation between two databases?
I had a look on some APIs to work with those kind of files:
Shapefile C Library
PySAL
GDAL - Geospatial Data Abstraction Library
Finally I read in some research papers about softwares determining databases …
- 445
0
votes
1
answer
252
views
Correlation and terrain databases [duplicate]
I would like to know what kind of computation I could perform on a terrain database.
I'm making terrain for VBS2 from raw data (shp files and DTM Elevation files) and then I'd like to be able to check …
- 445
1
vote
1
answer
2k
views
Python GDAL/OGR: WGS84 & meters units
d = lineGeo.Distance(pointGeo) # Computes the shortest distance between the 2 geometries (degrees)
# if d<lineWidth then point is on the line, nbFound+=1
Should I reproject the shapefile …
- 445
4
votes
2
answers
5k
views
Python GDAL/OGR: retrieved feature is NoneType
I'm looping over a shapefile, and I want to retrieve the geometry of each feature, but very often I get an error saying:
pointGeo = pointFeat.GetGeometryRef()
AttributeError: 'NoneType' object has … I don't think my shapefile is corrupted or damaged, as I tried with several... and I often get this error, but for some features I don't get it.
Any idea how to solve this?
Thanks …
- 445