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import { Vector3 } from '../../math/Vector3.js';
import { Curve } from '../core/Curve.js';
function LineCurve3( v1, v2 ) {
Curve.call( this );
this.type = 'LineCurve3';
this.v1 = v1 || new Vector3();
this.v2 = v2 || new Vector3();
}
LineCurve3.prototype = Object.create( Curve.prototype );
LineCurve3.prototype.constructor = LineCurve3;
LineCurve3.prototype.isLineCurve3 = true;
LineCurve3.prototype.getPoint = function ( t, optionalTarget ) {
var point = optionalTarget || new Vector3();
if ( t === 1 ) {
point.copy( this.v2 );
} else {
point.copy( this.v2 ).sub( this.v1 );
point.multiplyScalar( t ).add( this.v1 );
}
return point;
};
// Line curve is linear, so we can overwrite default getPointAt
LineCurve3.prototype.getPointAt = function ( u, optionalTarget ) {
return this.getPoint( u, optionalTarget );
};
LineCurve3.prototype.copy = function ( source ) {
Curve.prototype.copy.call( this, source );
this.v1.copy( source.v1 );
this.v2.copy( source.v2 );
return this;
};
LineCurve3.prototype.toJSON = function () {
var data = Curve.prototype.toJSON.call( this );
data.v1 = this.v1.toArray();
data.v2 = this.v2.toArray();
return data;
};
LineCurve3.prototype.fromJSON = function ( json ) {
Curve.prototype.fromJSON.call( this, json );
this.v1.fromArray( json.v1 );
this.v2.fromArray( json.v2 );
return this;
};
export { LineCurve3 };
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