17. Module: Conceitos sobre Base de Dados Espaciais com PostGIS

Spatial Databases allow the storage of the geometries of records inside a Database as well as providing functionality for querying and retrieving the records using these Geometries. In this module we will use PostGIS, an extension to PostgreSQL, to learn how to setup a spatial database, import data into the database and make use of the geographic functions that PostGIS offers.

While working through this section, you may want to keep a copy of the PostGIS cheat sheet available from Boston GIS user group. Another useful resource is the online PostGIS documentation.

Existem também disponíveis na Boundless Geo alguns tutoriais mais extensos sobre PostGIS e bases de dados espaciais:

• Introdução ao PostGIS

• Truques e Dicas sobre Base de Dados Espaciais

Veja também o site PostGIS.

• 17.1. Lesson: PostGIS Setup
  • 17.1.1. Installing under Ubuntu
  • 17.1.2. Installing under Windows
  • 17.1.3. Installing on Other Platforms
  • 17.1.4. Configuring Databases to use PostGIS
  • 17.1.5. Looking at the installed PostGIS functions
  • 17.1.6. Spatial Reference Systems
  • 17.1.7. In Conclusion
  • 17.1.8. What’s Next?
• 17.2. Lesson: Simple Feature Model
  • 17.2.1. What is OGC
  • 17.2.2. What is the SFS Model
  • 17.2.3. Add a geometry field to table
  • 17.2.4. Add a constraint based on geometry type
  • 17.2.5. Try Yourself
  • 17.2.6. Populate geometry_columns table
  • 17.2.7. Add geometry record to table using SQL
  • 17.2.8. In Conclusion
  • 17.2.9. What’s Next?
• 17.3. Lesson: Import and Export
  • 17.3.1. shp2pgsql
  • 17.3.2. pgsql2shp
  • 17.3.3. ogr2ogr
  • 17.3.4. Gestor BD
  • 17.3.5. In Conclusion
  • 17.3.6. What’s Next?
• 17.4. Lesson: Spatial Queries
  • 17.4.1. Spatial Operators
  • 17.4.2. Spatial Indexes
  • 17.4.3. Try Yourself
  • 17.4.4. PostGIS Spatial Functions Demo
  • 17.4.5. In Conclusion
  • 17.4.6. What’s Next?
• 17.5. Lesson: Geometry Construction
  • 17.5.1. Creating Linestrings
  • 17.5.2. Try Yourself
  • 17.5.3. Creating Polygons
  • 17.5.4. Exercise: Linking Cities to People
  • 17.5.5. Looking at Our Schema
  • 17.5.6. Try Yourself
  • 17.5.7. Access Sub-Objects
  • 17.5.8. Data Processing
  • 17.5.9. Clipping
  • 17.5.10. Building Geometries from Other Geometries
  • 17.5.11. Geometry Cleaning
  • 17.5.12. Differences between tables
  • 17.5.13. Tablespaces
  • 17.5.14. In Conclusion