File size: 1,776 Bytes
b797337 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 | import { Vector3 } from './Vector3.js';
import * as MathUtils from './MathUtils.js';
const _startP = /*@__PURE__*/ new Vector3();
const _startEnd = /*@__PURE__*/ new Vector3();
class Line3 {
constructor( start = new Vector3(), end = new Vector3() ) {
this.start = start;
this.end = end;
}
set( start, end ) {
this.start.copy( start );
this.end.copy( end );
return this;
}
copy( line ) {
this.start.copy( line.start );
this.end.copy( line.end );
return this;
}
getCenter( target ) {
return target.addVectors( this.start, this.end ).multiplyScalar( 0.5 );
}
delta( target ) {
return target.subVectors( this.end, this.start );
}
distanceSq() {
return this.start.distanceToSquared( this.end );
}
distance() {
return this.start.distanceTo( this.end );
}
at( t, target ) {
return this.delta( target ).multiplyScalar( t ).add( this.start );
}
closestPointToPointParameter( point, clampToLine ) {
_startP.subVectors( point, this.start );
_startEnd.subVectors( this.end, this.start );
const startEnd2 = _startEnd.dot( _startEnd );
const startEnd_startP = _startEnd.dot( _startP );
let t = startEnd_startP / startEnd2;
if ( clampToLine ) {
t = MathUtils.clamp( t, 0, 1 );
}
return t;
}
closestPointToPoint( point, clampToLine, target ) {
const t = this.closestPointToPointParameter( point, clampToLine );
return this.delta( target ).multiplyScalar( t ).add( this.start );
}
applyMatrix4( matrix ) {
this.start.applyMatrix4( matrix );
this.end.applyMatrix4( matrix );
return this;
}
equals( line ) {
return line.start.equals( this.start ) && line.end.equals( this.end );
}
clone() {
return new this.constructor().copy( this );
}
}
export { Line3 };
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