
Python Geospatial Analysis Cookbook
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To demonstrate what merging is all about, we will take an example from the National Oceanic and Atmospheric Administration (NOAA) weather data. It provides an awesome minute-by-minute update of Shapefiles for your desire to download data. We will look at a one-week collection of weather warnings, and combine these with state boundaries to see where exactly warnings occurred within a state boundary.
The preceding screenshot shows us the polygons before the union operation in QGIS.
Make sure your virtual environment is, as always, fired up and run the following command:
$ source venvs/pygeo_analysis_cookbook/bin/activate
Next, switch to your /ch06/code/
folder to find finished code examples or create your empty file in the /ch06/
working folder and follow along with the code.
The pyshp
and shapely
libraries are our two workhorses for this exercise:
You can simply run this file in the command prompt to see the results as follows:
>>...
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