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170 lines
3.2 KiB
C#
170 lines
3.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace THREE
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{
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public class Line3
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{
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function Line3(start, end )
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{
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this.start = (start !== undefined) ? start : new Vector3();
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this.end = (end !== undefined) ? end : new Vector3();
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}
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set: function(start, end )
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{
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this.start.copy(start);
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this.end.copy(end);
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return this;
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},
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clone: function()
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{
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return new this.constructor().copy(this);
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},
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copy: function(line )
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{
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this.start.copy(line.start);
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this.end.copy(line.end);
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return this;
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},
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getCenter: function(target )
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{
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if (target === undefined)
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{
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console.warn('THREE.Line3: .getCenter() target is now required');
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target = new Vector3();
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}
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return target.addVectors(this.start, this.end).multiplyScalar(0.5);
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},
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delta: function(target )
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{
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if (target === undefined)
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{
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console.warn('THREE.Line3: .delta() target is now required');
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target = new Vector3();
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}
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return target.subVectors(this.end, this.start);
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},
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distanceSq: function()
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{
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return this.start.distanceToSquared(this.end);
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},
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distance: function()
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{
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return this.start.distanceTo(this.end);
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},
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at: function(t, target )
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{
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if (target === undefined)
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{
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console.warn('THREE.Line3: .at() target is now required');
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target = new Vector3();
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}
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return this.delta(target).multiplyScalar(t).add(this.start);
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},
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closestPointToPointParameter: function()
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{
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var startP = new Vector3();
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var startEnd = new Vector3();
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return function closestPointToPointParameter(point, clampToLine) {
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startP.subVectors(point, this.start);
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startEnd.subVectors(this.end, this.start);
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var startEnd2 = startEnd.dot(startEnd);
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var startEnd_startP = startEnd.dot(startP);
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var t = startEnd_startP / startEnd2;
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if (clampToLine)
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{
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t = _Math.clamp(t, 0, 1);
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}
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return t;
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};
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}
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(),
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closestPointToPoint: function(point, clampToLine, target )
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{
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var t = this.closestPointToPointParameter(point, clampToLine);
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if (target === undefined)
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{
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console.warn('THREE.Line3: .closestPointToPoint() target is now required');
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target = new Vector3();
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}
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return this.delta(target).multiplyScalar(t).add(this.start);
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},
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applyMatrix4: function(matrix )
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{
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this.start.applyMatrix4(matrix);
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this.end.applyMatrix4(matrix);
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return this;
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},
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equals: function(line )
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{
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return line.start.equals(this.start) && line.end.equals(this.end);
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}
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}
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}
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