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photonstorm
31 lines
634 B
JavaScript
31 lines
634 B
JavaScript
var Shape = require('./Shape');
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module.exports = Line;
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/**
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* Line shape class. The line shape is along the x direction, and stretches from [-length/2, 0] to [length/2,0].
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* @class Line
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* @extends {Shape}
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* @constructor
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*/
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function Line(length){
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/**
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* Length of this line
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* @property length
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* @type {Number}
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*/
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this.length = length;
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Shape.call(this,Shape.LINE);
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};
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Line.prototype = new Shape();
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Line.prototype.computeMomentOfInertia = function(mass){
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return mass * Math.pow(this.length,2) / 12;
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};
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Line.prototype.updateBoundingRadius = function(){
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this.boundingRadius = this.length/2;
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};
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