Download:

Paper (PDF, ~1.6 MB)
Demo (Win32, ~760 kB)
Source (C++, ~1.5 MB. Project: VS2008 (VC9). Dependent on libraries: OpenGL, GLUT, GLUI, DevIL, WildMagic 4.)

Overview:

A paper I presented at the Fifth Eurographics Conference on Sketch-Based Interfaces and Modeling 2008, which received one of four "best paper" awards of 23 submissions. In short, the paper details an approach to fitting a piecewise clothoid curve to an input polyline. The approach is ideal for applications where stroke fairness takes precedence over precise interpolation of points.