in function the angle is a radian measurement.
6.28319 radians = approx 360 deg
so 3.14 or Pi = 180 deg
so 1 degree is approx 0.0174533 radians.
with a handle rotated 1 degree off smooth (179deg)
set t = 0.018 to get isSmooth to return false
set t = 0.017 to get isSmooth to return true
I did not mean to put a 1 in there.
it should have been much smaller...
making the 2 line up and be smooth is a little tricky.
which 1 do you move, which do you keep still, or do you move both a little?
this will affect the path and change the shape.
this math hurts me a little even if it is quite basic.
switched it up a bit, make it simpler to implement
it's missing the code to actually straighten handles to exactly 180 degrees.
try this:
// by Qwertyfly...
//this is not complete!
// angle tolerance for isSmooth function
/*
tolerance is in radians 0.0174533 = apporx 1 degree
*/
var t = 0.018;
function isSmooth(P){
var angle = Math.abs(Math.atan2(P.leftDirection[1]-P.anchor[1],P.leftDirection[0]-P.anchor[0]) -Math.atan2(P.rightDirection[1]-P.anchor[1],P.rightDirection[0]-P.anchor[0])); if(angle==Math.PI){return "smooth";}else{return(angle > Math.PI - t && angle < Math.PI + t);}
}
var doc = app.activeDocument;
var sel = doc.selection;
alert(sel[0].pathPoints.length);
for(var i=0; i<sel[0].pathPoints.length; i++){ var P = sel[0].pathPoints[i]; if(isSmooth(P)=="smooth"){ if(P.pointType == PointType.SMOOTH){ alert('super smooth'); }else{ alert('locking handles to smooth'); P.pointType = PointType.SMOOTH; } }else if(isSmooth(P)){ //true alert('as good as smooth\nneed to straighten to 180 & lock handles to smooth'); P.pointType = PointType.SMOOTH; //straighten code goes here }else{ //false alert('smooth as bitumen\nleaving as a corner'); }
}