Canvas Draw Function Set Up
Learn how to draw on the HTML canvas element using JavaScript. The canvas tag is aptly named. It supplies you with a means of drawing things through script and it renders in browser software. Things can be stationary or animated inside of a canvas.
<html>
<head>
<script>
window.onload = draw; // Execute draw function when DOM is ready
function draw() {
// Assign our canvas element to a variable
var canvas = document.getElementById("canvas1");
// Create the HTML5 context object to enable draw methods
var ctx = canvas.getContext("2d");
// fillStyle (r, g, b, alpha);
ctx.fillStyle = "rgba(0,200,0,1)";
// fillRect (X, Y, width, height);
ctx.fillRect (36, 10, 22, 22);
}
</script>
</head>
<body>
<canvas id="canvas1" width="400" height="300"></canvas>
</body>
</html>