![]() Lecture 30: Working with attribute forms and validation Using feature filters (Query Definitions) Selecting feature by spatial relationships Using the field calculator for more advanced calculations Using the field calculator for geometry calculations ![]() Using the field calculator for simple calculations I am not anti-commercial GIS, however I do believe that all GIS professionals should have a good understanding of all their options so that they may choose the best tool for the job.īackground maps from the OpenLayers plugin QGIS is not perfect but I believe that what it does, it does very well. Especially with multi-user editing of enterprise data. How to get started with python scripting. How to build spatial models for repeated tasks. How to use selections and filtering to control which features you view and modify. What data source options are available and the advantages and disadvantages of each. How QGIS compares with commercial offerings. There have also been many improvements that make it a reasonable choice for your core GIS application. The release of a major new version of QGIS means that what you learn today will likely be valid for many years. "If you are a GIS professional who has been interested in exploring the options for open source GIS, there has never been a better time to start learning.
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