INNER CODE UNIT · JavaScript

setupDrawingCanvas

Booodaness/Scientific-Notes · Booodaness/_Assets/Presentations/phase-space-analysis-harmonic-oscillators.md/plugin/chalkboard/plugin (copy).js:262

	function setupDrawingCanvas( id ) {
		var container = document.createElement( 'div' );
		container.id = drawingCanvas[id].id;
		container.classList.add( 'overlay' );
		container.setAttribute( 'data-prevent-swipe', '' );
		container.oncontextmenu = function() { return false; }
		container.style.cursor = pens[ id ][ color[id] ].cursor;

		drawingCanvas[id].width = window.innerWidth;
		drawingCanvas[id].height = window.innerHeight;
		drawingCanvas[id].scale = 1;
		drawingCanvas[id].xOffset = 0;
		drawingCanvas[id].yOffset = 0;

		if ( id == "0" ) {
			container.style.background = 'rgba(0,0,0,0)';
			container.style.zIndex = 24;
			container.style.opacity = 1;

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