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checkpoint arc work

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This commit is contained in:
Stewart Allen 2021-02-06 16:07:56 -05:00
commit 3dedaae05b
3 changed files with 31 additions and 27 deletions
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31
src/kiri/print.js
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@ -157,24 +157,15 @@
center.y = pos.Y + rec.J;
//center.r = TODO
} else if (rec.R !== undefined) {
let mid = {
x: (pos.X + rec.X) / 2,
y: (pos.Y + rec.Y) / 2,
dx: rec.X - pos.X,
dy: rec.Y - pos.Y
};
let hml = Math.sqrt(mid.dx * mid.dx + mid.dy * mid.dy);
let s2 = BASE.newSlope({
let pr2 = BASE.util.center2pr({
x: pos.X,
y: pos.Y
}, {
x: rec.X,
y: rec.Y
}).normal().toUnit();
let ln = Math.sqrt(Math.abs(rec.R*rec.R - hml*hml));
LOG({hml,s2,ln,mid});
center.x = mid.x - ln * s2.dx;
center.y = mid.y - ln * s2.dy;
}, rec.R)[g2 ? 1 : 0];
center.x = pr2.x;
center.y = pr2.y;
center.r = rec.R;
} else {
console.log({malfomed_arc: line});
@ -186,34 +177,24 @@
// let a1 = Math.atan2(center.y - pos.Y, center.x - pos.X);
// let a2 = Math.atan2(center.y - rec.Y, center.x - rec.X);
let ad = BASE.util.thetaDiff(a1, a2);
let steps = 5;
let steps = 20;
let step = (ad > 0.001 ? ad : Math.PI * 2) / steps;
let rot = a1;
let d1 = a1 * 180/Math.PI;
let d2 = a2 * 180/Math.PI;
LOG({pos, rec, center, a1, a2, ad, d1, d2, step, rot});
LOG({first: pos, last: rec, center, a1, a2, ad, step, rot, line});
G0G1(false, [`X${center.x}`, `Y${center.y}`, `E1`]);
// rotate p around o
// p'x = cos(theta) * (px-ox) - sin(theta) * (py-oy) + ox
// p'y = sin(theta) * (px-ox) + cos(theta) * (py-oy) + oy
let pc = { X: pos.X, Y: pos.Y };
// let zc = { x: pc.X - center.x, y: pc.Y - center.y };
for (let i=0; i<=steps; i++) {
let np = {
X: center.x + Math.sin(rot) * center.r,
Y: center.y + Math.cos(rot) * center.r
// X: Math.cos(rot) * (pc.X - center.x) - Math.sin(rot) * (pc.Y - center.y) + center.x,
// Y: Math.sin(rot) * (pc.X - center.x) - Math.cos(rot) * (pc.Y - center.y) + center.y
};
rot += step;
G0G1(false, [`X${np.X}`, `Y${np.Y}`, `E1`]);
}
G0G1(false, [`X${rec.X}`, `Y${rec.Y}`, `E1`]);
LOG({g2, arc: line, pos, center});
pos.X = rec.X;
pos.Y = rec.Y;