November 2018
Beginner to intermediate
272 pages
5h 36m
English
Content preview from Learn QGIS - Fourth Edition
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Converting between points, lines, and polygons
It is often necessary to be able to convert between points, lines, and polygons, for example, to create lines from a series of points, or to extract the nodes of polygons and create a new point layer out of them. There are many tools that cover these different use cases.
The following table provides an overview of the tools that are available in the processing toolbox for conversion between points, lines, and polygons:
|
|
To points |
To lines |
To polygons |
|
From points |
- |
Points to path |
Convex hull Concave hull |
|
From lines |
Extract nodes |
- |
Lines to polygons Convex hull |
|
From polygons |
Extract nodes Polygon centroids (Random points inside a polygon) |
Polygons to lines ... |
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