Another may involve understanding shifting boundaries over time. One example is sampling: you may need political or planning boundaries to sample respondents for a survey. There are a number of reasons for wanting a boundary shapefile in GIS. Have you ever been stuck on a geospatial analysis because you could only find a PDF or even paper map of what you needed? Or googled your topic followed by “shapefile” to no avail? The process of transforming a PDF, paper, or even hand-drawn map with boundaries into a shapefile for analysis is straightforward but involves several steps. But sometimes the challenge is getting your data into a form to be able to use with GIS. GIS is incredibly powerful: you can transform, overlay, and analyze data with a few clicks. From paper to vector: converting maps into GIS shapefiles
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