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.net Powerful JavaScript charts
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.

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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.

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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.

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Horizontal Progress bar API reference

The Horizontal Bar chart can be customised to appear as a Horizontal Progress bar. This means that all of the properties of the Horizontal Bar chart, such as tooltips, can be used as well. There's a demo in the download archive.

Example

<script>
    new RGraph.SVG.HBar({
        id: 'chart-container',
        data: [10],
        options: {
            colors: ['#eee'],
            marginLeft: 15,
            marginRight: 15,
            backgroundGrid: false,
            colorsStroke: '#ccc',
            marginInner: 10,
            xaxis: false,
            xaxisScale: false,
            yaxis: false,
            linewidth: .5
        }
    }).draw();

    new RGraph.SVG.HBar({
        id: 'chart-container',
        data: [7],
        options: {
            xaxisScaleMax: 10,
            shadow: true,
            shadowOffsetx: 1,
            shadowOffsety: 1,
            shadowBlur: 1,
            title: 'Results of the weekends competition',
            titleColor: '#666',
            titleBold: true,
            colors: ['Gradient(#fcc:red)'],
            colorsSequential: true,
            backgroundGrid: false,
            tooltips: ['Monday was an average day'],
            tooltipsCss: {
                backgroundColor: '#333',
                fontWeight: 'bold',
                fontSize: '14pt',
                opacity: 0.85
            },
            marginLeft: 15,
            marginRight: 15,
            marginInner: 15,
            xaxis: false,
            xaxisScaleUnitsPost: '%',
            yaxis: false
        }
    }).grow();
</script>

See also