Bezier curve approximation algorithm with biarcs

Synopsis

This is more or less a one-to-one implementation of https://github.com/domoszlai/bezier2biarc for openFrameworks.

Installation

You can install this as any other openFrameworks addon.

Implementation

The algorithm is explained by Domoszlai in this blog post: http://dlacko.org/blog/2016/10/19/approximating-bezier-curves-by-biarcs/.

Usage

Create a number of cubic bezier paths in openFrameworks.

Convert them to BiArcs by calling ofxCubicBezierToBiArc::ApproxCubicBezier().

Limitations

• The code only works in 2D space.
• It will not check if the input actually is cubic beziers, and it has not been tested on other inputs.

Screenshots

Original paths

BiArc paths

Overlay of original and BiArcs.(here the BiArcs are translated by ofPoint(1,1) to make them more visible)