About
RGraph is a JavaScript charts library based on HTML5 SVG and canvas. RGraph is mature (over 15 years old) and has a wealth of features making it an ideal choice to show charts on your website.

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RGraph can be used for free under the GPL or if that doesn't suit your situation there's an inexpensive (£99) commercial license available.

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Get the latest version of RGraph (version 6.17) from the download page. There's also older versions available, minified files and links to cdnjs.com hosted libraries.

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The shadowOffsetX property

This sets the x-axis offset of the shadow. Values can be positive (the shadows are cast to the right) or negative (the shadows are cast to the left). Inner shadows are not supported but are achievable by:


An example

<script>
    window.onload = function ()
    {
        var canvas  = document.getElementById("cvs");
        var context = canvas.getContext('2d');

        var x       = 50;
        var y       = 50;
        var width   = 100;
        var height  = 100;
    
        context.shadowColor = '#ccc';
        context.shadowOffsetX = 30;
        context.shadowOffsetY = 0;
        context.shadowBlur = 15;
    
        context.fillStyle = 'red';    
        context.fillRect(x, y, width, height);
    }
</script>