block by enjalot b95748220bd4752fb33a

dots on a map: lasso

Full Screen

Prototyping a lasso tool for selecting geographic points with an arbitrary polygon.

Using this point-in-polygon code to calculate which points are selected within the polygon. All calculations are done in the projected (pixel) space.

Built with blockbuilder.org

forked from enjalot‘s block: dots on a map: setup

index.html