GIS

PostGIS is an extension to the PostgreSQL object-relational database system which allows GIS (Geographic Information Systems) objects to be stored in the database. PostGIS includes support for GiST-based R-Tree spatial indexes, and functions for analysis and processing of GIS objects. This is the manual for version 3.5.4dev This work is licensed under a Creative Commons Attribution-Share Alike 3.0 License. Feel free to use this material any way you like, but we ask that you attribute credit to the PostGIS Project and wherever possible, a link back to https://postgis.net.

This step-by-step tutorial will walk you through how to use QField, an application that allows you to edit QGIS projects in the field.

Design tips database design geodatabasesdesigning Geodatabase data models are designed to be used in practical application scenarios by a wide range of users. To ensure that each design is easy to understand and implement, each data model was built to support easy migration from existing data structures and has been designed to be flexible, extensible, and easily adapted by your organization. Here are a few final design tips to help you with your design implementation: Build on your existing GIS designs. Most existing database designs are suitable for moving forward. You can build on what has worked in the past and find new geodatabase capabilities that

The ArcGIS data models Web site provides an example of documenting a geodatabase design that may be helpful when you document your own designs.