Arch Curve Simplify is a Geometry Nodes setup that implements the Ramer-Douglas-Peucker algorithm to reduce the number of points in a curve while preserving its overall shape. The tool provides options to factor in curve point angles for poly curves and handle angles for bezier curves.

Users can choose to retain the original bezier points or specify custom selected points during the simplification process. An exposed maximum iteration limit parameter allows users to control the decimation and visualize the steps of the algorithm from its starting point.