Add ability to produce contours from an irregular grid of points.

Description

While GeoTools has the ability to make contours of a raster coverage, it doesn't currently have any way to make contours if the user has a collection of points.

Environment

None

Activity

Show:
Ian Turton
December 22, 2020, 6:26 PM

see for code

Ian Turton
December 22, 2020, 4:53 PM

It’s more fun (and I suspect faster) to do a Delaunay Triangulation and then interpolate the values along the triangle edges. But will be interesting to compare the two methods.

Andrea Aime
December 22, 2020, 4:50 PM

Thinking out loud, could be done by chaining two processes, a raster interpolation process first (barnes surfaces, if you can make it work) and then extract contours from there. Just a quick idea mind.

Fixed

Assignee

Ian Turton

Reporter

Ian Turton