INNER CODE UNIT · JavaScript

cloneCanvas

Booodaness/Scientific-Notes · Booodaness/_Assets/Presentations/phase-space-analysis-harmonic-oscillators.md/plugin/chalkboard/plugin (copy).js:578

	function cloneCanvas(oldCanvas) {
		//create a new canvas
		var newCanvas = document.createElement('canvas');
		var context = newCanvas.getContext('2d');
		//set dimensions
		newCanvas.width = oldCanvas.width;
		newCanvas.height = oldCanvas.height;
		//apply the old canvas to the new one
		context.drawImage(oldCanvas, 0, 0);
		//return the new canvas
		return newCanvas;
	}

	function getCanvas( template, container, board ) {
		var idx = container.findIndex(element => element.board === board);
		if ( idx === -1 ) {
			var canvas = cloneCanvas(template);
			if ( !container.length ) {

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