compute a smoothed direction that ignores staircasing
Description
This is very similar to direction with the only difference that it takes the direction across 2*n+1 segments instead of across a single one, which averages out the staircasing of a pixel grid. The window runs along the chain and is clamped at its ends, so it never smears across a junction.
Syntax
dir = calcMeanDirection(gB)
dir = calcMeanDirection(gB,2)Input
| gB | grainBoundary |
| n | number of neighboring segments considered on each side |
Output
| dir | vector3d |