Expand description
Computation of offset curves of cubic Béziers.
The main algorithm in this module is a new technique designed for robustness and speed. The details are involved; hopefully there will be a paper.
Structs§
- Cubic
Offset 🔒 - State used for computing an offset curve of a single cubic.
- ErrEval 🔒
- Result of error evaluation
- Offset
Rec 🔒 - State local to a subdivision
- Subdivision
Point 🔒 - Result of subdivision
Constants§
- A_
WEIGHTS 🔒 - BLEND 🔒
- The proportion of transverse error that is blended in the least-squares logic.
- B_
WEIGHTS 🔒 - CUSP_
EPSILON 🔒 - MAX_
DEPTH 🔒 - Maximum recursion depth.
- N_LSE 🔒
- Number of points for least-squares fit and error evaluation.
Functions§
- mk_
a_ 🔒weights - Compute Bézier weights for evenly subdivided t values.
- offset_
cubic - Compute an approximate offset curve.