Download Python Geospatial Development by Erik Westra PDF

By Erik Westra

This can be a educational kind e-book that may train utilization of Python instruments for GIS utilizing uncomplicated useful examples after which aid you construct a whole mapping program from scratch. The booklet assumes easy wisdom of Python. No wisdom of Open resource GIS is needed. This e-book comes in handy for Python builders who are looking to wake up to hurry with Open resource GIS with a view to construct GIS purposes or combine Geo-Spatial positive factors into their purposes.

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Extra resources for Python Geospatial Development

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As more and more geo-spatial data becomes available from an increasing number of sources, and as the number of tools and systems that can work with this data also increases, it has become essential to define standards for geo-spatial data. opengeospatial. org), is an international standards organization that aims to do precisely this: to provide a set of standard formats and protocols for sharing and storing geo-spatial data. These standards, including GML, KML, GeoRSS, WMS, WFS, and WCS, provide a shared "language" in which geo-spatial data can be expressed.

Com. The Google Maps API has been immensely popular in creating these types of mash-ups. However, Google Maps has some serious licensing and other limitations. It is not the only option—tools such as Mapnik, open layers, and MapServer, to name a few, also allow you to create mash-ups that overlay your own data onto a map. Most of these mash-ups run as web applications across the Internet, running on a server that can be accessed by anyone who has a web browser. Sometimes, the mash-ups are private, requiring password access, but usually they are publically available and can be used by anyone.

GIS data formats A GIS data format specifies how geo-spatial data is stored in a file (or multiple files) on disk. The format describes the logical structure used to store geo-spatial data within the file(s). While we talk about storing information on disk, data formats can also be used to transmit geo-spatial information between computer systems. For example, a web service might provide map data on request, transmitting that data in a particular format. A GIS data format will typically support: • Geo-spatial data describing geographical features.

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