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Code Issues Projects Releases Wiki Activity

move out legacy bezier luts

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This commit is contained in:
Val Erastov (xibyte) 2020-07-19 21:59:04 -07:00
parent eecb903a1c
commit 24acddcc5a
3 changed files with 36 additions and 39 deletions
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4
web/app/cad/sketch/sketchModel.js
View file

@ -1,11 +1,9 @@
import verb from 'verb-nurbs'
import BrepCurve from '../../brep/geom/curves/brepCurve';
import NurbsCurve from '../../brep/geom/curves/nurbsCurve';
import {Point} from '../../brep/geom/point'
import {LUT} from '../../math/bezier-cubic'
import {makeAngle0_360} from '../../../../modules/math/commons'
import {normalizeCurveEnds} from '../../brep/geom/impl/nurbs-ext';
import Vector, {AXIS, ORIGIN} from '../../../../modules/math/vector';
import Vector from '../../../../modules/math/vector';
import CSys from "../../../../modules/math/csys";
import {distanceAB} from "../../../../modules/math/distance";
import {isCCW} from "../../../../modules/math/euclidean";

33
web/app/math/bezier-cubic.js
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@ -1,33 +0,0 @@
import Vector from 'math/vector';
export function LUT(a, b, cp1, cp2, scale) {
scale = 1 / scale;
const lut = [];
for (let t = 0; t < 1; t += 0.1 * scale) {
const p = compute(t, a, b, cp1, cp2);
lut.push(p);
}
lut[0] = a;
lut[lut.length - 1] = b;
return lut;
}
export function compute(t, from, to, controlPoint1, controlPoint2) {
const mt = 1 - t;
const mt2 = mt * mt;
const t2 = t * t;
const a = mt2 * mt;
const b = mt2 * t * 3;
const c = mt * t2 * 3;
const d = t * t2;
const p0 = from;
const p3 = to;
const p1 = controlPoint1;
const p2 = controlPoint2;
return new Vector(
a * p0.x + b * p1.x + c * p2.x + d * p3.x,
a * p0.y + b * p1.y + c * p2.y + d * p3.y,
a * p0.z + b * p1.z + c * p2.z + d * p3.z
);
}

38
web/app/sketcher/shapes/bezier-curve.js
View file

@ -1,10 +1,10 @@
import {SketchObject} from './sketch-object'
import {Segment} from './segment'
import {LUT} from '../../math/bezier-cubic'
import {ConvexHull2D} from '../../math/convex-hull'
import * as draw_utils from '../shapes/draw-utils'
import {isPointInsidePolygon, polygonOffset} from "../../../../modules/math/euclidean";
import {isPointInsidePolygon, polygonOffset} from "math/euclidean";
import Vector from "math/vector";
export class BezierCurve extends SketchObject {
@ -123,4 +123,36 @@ BezierCurve.prototype.TYPE = 'BezierCurve';
BezierCurve.prototype._class = 'TCAD.TWO.BezierCurve';
const RECOVER_LENGTH = 100;
const RECOVER_LENGTH = 100;
export function LUT(a, b, cp1, cp2, scale) {
scale = 1 / scale;
const lut = [];
for (let t = 0; t < 1; t += 0.1 * scale) {
const p = compute(t, a, b, cp1, cp2);
lut.push(p);
}
lut[0] = a;
lut[lut.length - 1] = b;
return lut;
}
export function compute(t, from, to, controlPoint1, controlPoint2) {
const mt = 1 - t;
const mt2 = mt * mt;
const t2 = t * t;
const a = mt2 * mt;
const b = mt2 * t * 3;
const c = mt * t2 * 3;
const d = t * t2;
const p0 = from;
const p3 = to;
const p1 = controlPoint1;
const p2 = controlPoint2;
return new Vector(
a * p0.x + b * p1.x + c * p2.x + d * p3.x,
a * p0.y + b * p1.y + c * p2.y + d * p3.y,
a * p0.z + b * p1.z + c * p2.z + d * p3.z
);
}