| Server IP : 210.245.233.93 / Your IP : 216.73.216.226 Web Server : Apache/2.2.15 (CentOS) System : Linux webserver2.onesolution.com.hk 2.6.32-754.35.1.el6.x86_64 #1 SMP Sat Nov 7 12:42:14 UTC 2020 x86_64 User : apache ( 48) PHP Version : 5.3.3 Disable Function : exec, shell_exec, system, passthru, popen, proc_open, pcntl_exec MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /var/www/hkosl.com/3dweb/src/math/ |
Upload File : |
import { Vector3 } from './Vector3.js';
import { MathUtils } from './MathUtils.js';
/**
* @author bhouston / http://clara.io
*/
var _startP = new Vector3();
var _startEnd = new Vector3();
function Line3( start, end ) {
this.start = ( start !== undefined ) ? start : new Vector3();
this.end = ( end !== undefined ) ? end : new Vector3();
}
Object.assign( Line3.prototype, {
set: function ( start, end ) {
this.start.copy( start );
this.end.copy( end );
return this;
},
clone: function () {
return new this.constructor().copy( this );
},
copy: function ( line ) {
this.start.copy( line.start );
this.end.copy( line.end );
return this;
},
getCenter: function ( target ) {
if ( target === undefined ) {
console.warn( 'THREE.Line3: .getCenter() target is now required' );
target = new Vector3();
}
return target.addVectors( this.start, this.end ).multiplyScalar( 0.5 );
},
delta: function ( target ) {
if ( target === undefined ) {
console.warn( 'THREE.Line3: .delta() target is now required' );
target = new Vector3();
}
return target.subVectors( this.end, this.start );
},
distanceSq: function () {
return this.start.distanceToSquared( this.end );
},
distance: function () {
return this.start.distanceTo( this.end );
},
at: function ( t, target ) {
if ( target === undefined ) {
console.warn( 'THREE.Line3: .at() target is now required' );
target = new Vector3();
}
return this.delta( target ).multiplyScalar( t ).add( this.start );
},
closestPointToPointParameter: function ( point, clampToLine ) {
_startP.subVectors( point, this.start );
_startEnd.subVectors( this.end, this.start );
var startEnd2 = _startEnd.dot( _startEnd );
var startEnd_startP = _startEnd.dot( _startP );
var t = startEnd_startP / startEnd2;
if ( clampToLine ) {
t = MathUtils.clamp( t, 0, 1 );
}
return t;
},
closestPointToPoint: function ( point, clampToLine, target ) {
var t = this.closestPointToPointParameter( point, clampToLine );
if ( target === undefined ) {
console.warn( 'THREE.Line3: .closestPointToPoint() target is now required' );
target = new Vector3();
}
return this.delta( target ).multiplyScalar( t ).add( this.start );
},
applyMatrix4: function ( matrix ) {
this.start.applyMatrix4( matrix );
this.end.applyMatrix4( matrix );
return this;
},
equals: function ( line ) {
return line.start.equals( this.start ) && line.end.equals( this.end );
}
} );
export { Line3 };