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POMultiple Threshold in Highcharts
 

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    <p>I'm actually trying to use HighCharts for displaying multiple threshold.</p> <p>Here is the portion of my <a href="http://jsfiddle.net/XndxH/2/" rel="nofollow">code</a>.</p> <p>Especially here :</p> <pre><code>var translatedThreshold = series.yAxis.translate(threshold1), y1 = Math.round(series.yAxis.len - translatedThreshold), y2 = y1 + 2; // 0.01 would be fine, but IE9 requires 2 // Apply gradient to the path series.graph.attr({ stroke: { linearGradient: [0, y1, 0, y2], stops: [ [0, colorAbove], [1, colorBelow] ] } }); // Apply gradient to the area if (series.area) { series.area.attr({ fill: { linearGradient: [0, y1, 0, y2], stops: [ [0, colorAbove], [1, colorBelow] ] } }); } </code></pre> <p>Actually, there is two thresholds, one on 0 and one on 3. </p> <p>For the dots, the threshold is correct (a blue dot is displayed because its value is between 0 and 3 and its color value is ColorMiddle).</p> <p>For the curve, and the area, the colorMiddle values are not displayed though, because I don't know how to add them on the series graph.</p> <p>I think I must use a translatedThreshold2 with series.yAxis.translate(threshold2), and add them on the series.area.attr but I don't know how exactly.</p> <p>Does anyone have an idea ?</p> <p>EDIT1 : I managed to display the threshold line (in blue on the example below) but the area is not filled correctly. The area should be in blue between 0 and 300 and it's the color green (AKA colorAbove, and not colorMiddle).</p> <p>Result is displayed here : <a href="http://jsfiddle.net/LeLwu/27/" rel="nofollow">http://jsfiddle.net/LeLwu/27/</a> (it happens to be different in Chrome and Firefox ...)</p>
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