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POHTML5: saving the chart as an image on the server
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2012-03-02T00:37:46.543
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<p>Who knows about rgraph and HTML5? ( <a href="http://www.rgraph.net" rel="nofollow">http://www.rgraph.net</a> )</p> <p>The code of my chart is the following and my problem is that I can't save the canvas (image) on the server even following their suggestion.</p> <pre><code> <html> <head> <meta http-equiv="X-UA-Compatible" content="chrome=1"> <title>Title</title> <meta name="keywords" content="rgraph javascript charts html5 canvas basic example" /> <meta name="description" content="A basic example of an RGraph chart for implementation help" /> <meta name="googlebot" content="NOODP">  <script type="text/javascript" src="https://apis.google.com/js/plusone.js"></script> <script src="../libraries/RGraph.common.core.js" ></script> <script src="../libraries/RGraph.common.context.js" ></script> <script src="../libraries/RGraph.common.annotate.js" ></script> <script src="../RGraph.common.tooltips.js" ></script> <script src="../libraries/RGraph.common.zoom.js" ></script> <script src="../libraries/RGraph.common.effects.js" ></script> <script src="../libraries/RGraph.common.key.js" ></script> <script src="../libraries/RGraph.line.js" ></script> <script src="../libraries/RGraph.common.key.js" ></script>  <script src="../libraries/jquery.min.js" ></script> <script> window.onload = function () { var line1 = new RGraph.Line('line1', [3,56,22,7,84,8,34,1,1], [3,4,45,0,5,97,46,29,7]); line1.Set('chart.background.grid', true); line1.Set('chart.linewidth', 3); line1.Set('chart.gutter.left', 35); line1.Set('chart.hmargin', 5); if (!document.all || RGraph.isIE9up()) { line1.Set('chart.shadow', true); } line1.Set('chart.tickmarks', null); line1.Set('chart.units.post', ''); line1.Set('chart.colors', ['#FA4E1D', '#2D659A']); line1.Set('chart.background.grid.autofit', true); line1.Set('chart.background.grid.autofit.numhlines', 10); line1.Set('chart.background.grid.autofit.numvlines', 29); line1.Set('chart.curvy', 0); line1.Set('chart.curvy.factor', 0.25); line1.Set('chart.labels',['1','2','3','4','5','6','7','8','9']); line1.Set('chart.title','Title of the Chart'); line1.Set('chart.key.text.size',7); line1.Set('chart.key',['A','B']); line1.Set('chart.key.shadow','shadow'); line1.Set('chart.key.position','graph'); line1.Set('chart.ymax',200); line1.Draw(); } </script> </head> <body> <center><h2>My title</h2><center>  <div style="text-align: center"> <canvas id="line1" width="300" height="180">[Please wait...]</canvas> </div> </body> </html> </code></pre> <p>The suggestion is at the end of this page: <a href="http://www.rgraph.net/docs/index.html#image" rel="nofollow">http://www.rgraph.net/docs/index.html#image</a> at the specific paragraph "Saving the chart as an image on the server". My only result is a 0-lenght file .png inside my server.</p> <p>Could someone help me? Thanks in advance.</p> <p>Mattew</p>
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HTML5: saving the chart as an image on the server
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