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 use for showing charts on your website.
Download
Get the latest version of RGraph (version 6.18, 1st June 2024) from
the download page. You can read the changelog here. There's also older versions available,
minified files and links to cdnjs.com hosted libraries.
License
RGraph can be used for free under the GPL or if
that doesn't suit your situation there's an
inexpensive (£129) commercial license available.The shadowColor property
This sets the color of the shadow. The color must be a valid css color
(ie gradients and patterns are not
permitted here but you can use rgba colors or
rgb colors
such as: rgba(255,0,0,0.5) rgb(255,0,0) ).
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 = 'green';
context.shadowOffsetX = 3;
context.shadowOffsetY = 3;
context.shadowBlur = 15;
context.fillStyle = 'red';
context.fillRect(x, y, width, height);
}
</script>