Estimating values based on samples
Interpolation is the idea that, with a set of known values, you can estimate the values of additional points based on their proximity to these known values. This recipe shows you how to use known values at point locations to create a continuous surface (raster) of value estimates. Classic examples include weather data estimations that are based on weather station data (think temperature or rainfall maps), crop yield estimates that are based on sampling parts of a field, and like in this example in this recipe, elevation estimations that are based on the elevation of sampled points.
Getting ready
Activate Interpolation Plugin via Plugin Manager.
Load a point layer with numeric columns, representing the feature of ...
Get QGIS: Becoming a GIS Power User now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
