I would like to know if it is possible to programmatically highlight the marker on a plot.
I have a line graph and a separate data grid.
Clicking a marker within the line chart will highlight the relevant row in the data grid, and clicking a row in the data grid will highlight the relevant marker in the line chart.
In the example below I can do the first requirement. $('#chartdiv').bind('jqplotDataClick', function (ev, seriesIndex, pointIndex, data) returns the data point which I can use to find the relevant data grid row.
But I'm stuck on the reverse.
In my example I have replaced the datagrid with a button for simplicity.
Is there a SetSelectedMarker or some similar method I don't know?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>jqPlot examples</title>
<!--[if lt IE 9]><script language="javascript" type="text/javascript" src="js/jquery.jqplot.1.0.0r1095/dist/excanvas.min.js"></script><![endif]-->
<!-- jQuery runtime minified -->
<script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.7.1.min.js" type="text/javascript"></script>
<style type="text/css">
ul.tooltip
{
list-style-type:none;
padding:0px;
margin:0px;
}
</style>
<script class="include" type="text/javascript" src="js/jquery.jqplot.1.0.0r1095/dist/jquery.jqplot.min.js"></script>
<script class="include" type="text/javascript" src="js/jquery.jqplot.1.0.0r1095/dist/plugins/jqplot.canvasTextRenderer.min.js"></script>
<script class="include" type="text/javascript" src="js/jquery.jqplot.1.0.0r1095/dist/plugins/jqplot.canvasAxisLabelRenderer.min.js"></script>
<script class="include" type="text/javascript" src="js/jquery.jqplot.1.0.0r1095/dist/plugins/jqplot.highlighter.js"></script>
<script type="text/javascript">
// We use a document ready jquery function.
$(document).ready(function () {
// Some simple loops to build up data arrays.
var cosPoints = [];
for (var i = 0; i < 2 * Math.PI; i += 0.4) {
cosPoints.push([i, Math.cos(i)]);
}
var plot3 = $.jqplot('chartdiv', [cosPoints],
{
highlighter: {
show: true
, showTooltip: true
, tooltipLocation: 'ne'
, tooltipAxes: 'xy'
, useAxesFormatters: null
, formatString: '<div><ul class="tooltip"><li>%.4f</li><li>%.6f</li></ul></div>'
},
title: 'Line Style Options',
// Series options are specified as an array of objects, one object
series: [
{
// Change our line width and use a diamond shaped marker.
lineWidth: 2,
color: 'red',
markerOptions: { style: 'dimaond', color: 'black' }
},
{
// Don't show a line, just show markers.
// Make the markers 7 pixels with an 'x' style
showLine: false,
markerOptions: { size: 7, style: "x" }
},
{
// Use (open) circlular markers.
markerOptions: { style: "circle" }
},
{
// Use a thicker, 5 pixel line and 10 pixel
// filled square markers.
lineWidth: 5,
markerOptions: { style: "filledSquare", size: 10 }
}
]
, cursor: { show: true, showTooltip: true }
}
);
$('#chartdiv').bind('jqplotDataClick', function (ev, seriesIndex, pointIndex, data) {
alert(data);
});
$('#button').bind("click", function () {
DoSomeThing(plot3);
});
});
function DoSomeThing(plot) {
// *** highlight point in plot ***
}
</script>
</head>
<body>
<!--plot container-->
<div id="chartdiv" style="height:400px;width:600px; "></div>
<input id="button" type="button" value="click"/>
</body>
</html>
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