Transcription of PyQGIS developer cookbook - Documentation
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PyQGIS developer cookbook - Documentation
PyQGIS developer cookbookRelease ProjectMar 15, 2020 Contents1 in the Python Console .. Plugins .. Python code when QGIS starts .. Applications .. notes on PyQt and SIP ..52 Loading Projects73 Loading Layers .. Layers .. instance ..134 Using Raster Details .. Values ..175 Using Vector information about attributes .. over Vector Layer .. features .. Vector Layers .. Spatial Index .. Vector Layers .. (Symbology) of Vector Layers .. Topics ..386 Geometry Construction .. to Geometry .. Predicates and Operations ..417 Projections reference systems .. Transformation ..448 Using the Map Map Canvas .. Bands and Vertex Markers .. Map Tools with Canvas .. Custom Map Tools .. Custom Map Canvas Items.
This document is intended to be both a tutorial and a reference guide. While it does not list all possible use cases, it should give a good overview of the principal functionality. • Scripting in the Python Console • Python Plugins • Running Python code when QGIS starts – The startup.pyfile – The PYQGIS_STARTUP environment variable
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