Cargando…
Python geospatial analysis essentials : process, analyze, and display geospatial data using Python libraries and related tools /
If you are an experienced Python developer and wish to get up-to-speed with geospatial programming, then this book is for you. While familiarity with installing third-party Python libraries would be an advantage, no prior knowledge of geospatial programming is required.
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Birmingham, UK :
Packt Publishing,
2015.
|
| Colección: | Community experience distilled.
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover; Copyright; Credits; About the Author; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Geospatial Analysis and Techniques; About geospatial analysis; Understanding geospatial data; Setting up your Python installation; Installing GDAL; Installing Shapely; Obtaining some geospatial data; Unlocking the shapefile; Analyzing the data; A program to identify neighboring countries; Summary; Chapter 2: Geospatial Data; Geospatial data quality; Types of geospatial data; Shapefiles; Well-known text; Well-known binary; Spatial databases; Geospatial microformats.
- GeoJSONGML; Digital elevation models; Raster basemaps; Multiband raster files; Sources of freely available geospatial data; Natural Earth Data; OpenStreetMap; US Census Bureau; World Borders Dataset; GLOBE; National Elevation Dataset; Reading and writing geospatial data using Python; Reading vector data; Writing vector data; Reading raster data; Writing raster data; Dealing with spatial reference systems; WGS84; Universal Transverse Mercator; Describing spatial reference systems; Transforming coordinates; Calculating lengths and areas; Geospatial data errors and how to fix them; Points.
- LineStringsLinear Rings; Polygons; MultiPolygons; Fixing invalid geometries; Summary; Chapter 3: Spatial Databases; Spatial database concepts; Installing a spatial database; Installing PostgreSQL; Installing PostGIS; Installing psycopg2; Accessing PostGIS from Python; Setting up a spatial database; Importing spatial data; Querying spatial data; Manipulating spatial data; Exporting spatial data; Summary; Chapter 4: Creating Maps; Introducing Mapnik; Installing Mapnik; A taste of Mapnik; Building a map; Styling a map; Learning Mapnik; Datasources; Symbolizers; PointSymbolizer; LineSymbolizer.
- PolygonSymbolizerTextSymbolizer; RasterSymbolizer; Map rendering; A working example; Next steps; Summary; Chapter 5: Analyzing Geospatial Data; Libraries for spatial analysis; PyProj; NetworkX; Spatial analysis recipes; Calculating and comparing coordinates; Calculating lengths; Calculating areas; Calculating shortest paths; Summary; Chapter 6: Building a Complete Geospatial Analysis System; Matching GPS data against a map; An overview of the GPS Heatmap system; Obtaining the necessary data; Obtaining GPS data; Downloading the road data; Implementing the GPS Heatmap system.
- Initializing the databaseImporting the road data; Splitting the road data into segments; Constructing a network of directed road segments; Implementing the map-matching algorithm; Generating the GPS Heatmap; Further improvements; Summary; Index.