3 ms·
The main rationale is removing redundant degrees of freedom -- since the page is allowed to rotate freely, the edges of the page can still move around plenty.
by mzucker 10y ago
The main rationale is removing redundant degrees of freedom -- since the page is allowed to rotate freely, the edges of the page can still move around plenty.
- saynsedit 10y agoI see, so basically assume the two end points are at zero and there is some rotation accounting for the endpoint offset in real space. It still doesn't seem fully accurate as I can imagine a non-rotated cubic curve with endpoints at an offset, but I assume your simplification works well enough.