Reading and Writing Vector Data with OGR
Reading and Writing Vector
Data with OGR
Open Source RS/GIS Python
Week 1
OS Python week 1: Reading & writing vector data [1]
Why use open source?
? Pros
?
?
?
?
Affordable for individuals or small companies
Very helpful developers and fast bug fixes
Can use something other than Windows
You can impress people!
? Cons
? Doesn¡¯t have the built in geoprocessor
? Smaller user community
OS Python week 1: Reading & writing vector data [2]
Open Source RS/GIS modules
? OGR Simple Features Library
? Vector data access
? Part of GDAL
? GDAL ¨C Geospatial Data Abstraction
Library
? Raster data access
? Used by commercial software like ArcGIS
? Really C++ library, but Python bindings exist
OS Python week 1: Reading & writing vector data [3]
Related modules
? Numeric
? Sophisticated array manipulation (extremely
useful for raster data!)
? This is the one we¡¯ll be using in class
? NumPy
? Next generation of Numeric
? Some of you might use this one if you work at
home
OS Python week 1: Reading & writing vector data [4]
Other modules
? hosts Python
Cartographic Library ¨C looks like great
stuff, but I haven't used it
OS Python week 1: Reading & writing vector data [5]
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