Nicolas.adenis.lamarre: Created page with "JSXGraph objects can be extended to support your own custom method. For example, to add a method called isAlmostOrigin() to the Point objects, write the following code : ..."

2015-06-25T19:39:25Z

Created page with "JSXGraph objects can be extended to support your own custom method. For example, to add a method called isAlmostOrigin() to the Point objects, write the following code : <source> ..."

New page

JSXGraph objects can be extended to support your own custom method.
For example, to add a method called isAlmostOrigin() to the Point objects, write the following code :

<source>
JXG.extend(JXG.Point.prototype, {
isAlmostOrigin: function () {
return Math.abs(this.X()) < 0.5 && Math.abs(this.Y()) < 0.5
}
})

board = JXG.JSXGraph.initBoard('box', { axis:true })
A = board.create('point', [1, 0], {name:'A'});
alert(A.isAlmostOrigin()) // false
</source>

Add custom methods to objects - Revision history

Nicolas.adenis.lamarre: Created page with "JSXGraph objects can be extended to support your own custom method. For example, to add a method called isAlmostOrigin() to the Point objects, write the following code : ..."