HTML Canvas Line draw diamond

Description

HTML Canvas Line draw diamond

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<html>
    <head>
        <script>
            function drawDiamond(context, x, y, width, height){
        context.save();/*  w w  w .j a va 2 s  .c o m*/
                context.beginPath();
                context.moveTo(x, y);
                
                // top left edge
                context.lineTo(x - width / 2, y + height / 2);
                
                // bottom left edge
                context.lineTo(x, y + height);
                
                // bottom right edge
                context.lineTo(x + width / 2, y + height / 2);
                
                // closing the path automatically creates
                // the top right edge
                context.closePath();
                
                context.fillStyle = "red";
                context.fill();
        context.restore();
            }
            window.onload = function(){
                var canvas = document.getElementById("myCanvas");
                var context = canvas.getContext("2d");
        
                drawDiamond(context, 100, 70, 75, 100);
            };
        </script>
    </head>
    <body>
        <canvas id="myCanvas" width="600" height="250" style="border:1px solid black;">
        </canvas>
    </body>
</html>



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