- QGIS Python Programming Cookbook
- Joel Lawhead
- 79字
- 2021-07-23 19:48:52
Chapter 2. Querying Vector Data
In this chapter, we will cover the following recipes:
- Loading a vector layer from a file
- Loading a vector layer from a geodatabase
- Examining vector layer features
- Examining vector layer attributes
- Filtering a layer by geometry
- Filtering a layer by attributes
- Buffering a feature
- Measuring the distance between two points
- Measuring the distance along a line
- Calculating the area of a polygon
- Creating a spatial index
- Calculating the bearing of a line
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