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 lineJoin property
The lineJoin property is used to set how lines are drawn when they are
connected. There are three possible values: bevel round
and miter. Initially, the setting is miter. Below are examples of the
different types.
An example
<script>
window.onload = function ()
{
var canvas = document.getElementById("cvs");
var context = canvas.getContext('2d');
// Translate by half a pixel - this makes lines look crisp
context.translate(0.5, 0.5);
context.beginPath();
context.lineJoin = 'bevel';
context.lineWidth = 25;
context.moveTo(50,150);
context.lineTo(100,50);
context.lineTo(150, 150);
context.stroke();
}
</script>