Radar Labels Coordinates for radar chart - Javascript Chart.js

Javascript examples for Chart.js:Chart Label

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Description

Radar Labels Coordinates for radar chart

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://rawgit.com/nnnick/Chart.js/v1.0.2/Chart.min.js"></script> 
      <script type="text/javascript">
    window.onload=function(){//from w  w w.j av a  2s  .c o m
var data = {
    labels: ["Eating", "Drinking", "Sleeping", "Designing", "Coding", "Cycling", "Running"],
    datasets: [
        {
            label: "My First dataset",
            fillColor: "rgba(220,220,220,0.2)",
            strokeColor: "rgba(220,220,220,1)",
            pointColor: "rgba(220,220,220,1)",
            pointStrokeColor: "#fff",
            pointHighlightFill: "#fff",
            pointHighlightStroke: "rgba(220,220,220,1)",
            data: [65, 59, 90, 81, 56, 55, 40]
        },
        {
            label: "My Second dataset",
            fillColor: "rgba(151,187,205,0.2)",
            strokeColor: "rgba(151,187,205,1)",
            pointColor: "rgba(151,187,205,1)",
            pointStrokeColor: "#fff",
            pointHighlightFill: "#fff",
            pointHighlightStroke: "rgba(151,187,205,1)",
            data: [28, 48, 40, 19, 96, 27, 100]
        }
    ]
};
var ctx = document.getElementById("myChart").getContext("2d");
var myRadarChart = new Chart(ctx).Radar(data, {
    onAnimationComplete: function () {
        for (var i = 0; i < this.scale.valuesCount; i++) {
            // get the poitn position
            var pointLabelPosition = this.scale.getPointPosition(i, this.scale.calculateCenterOffset(this.scale.max) + 5);
            // draw a circle at that point
            this.chart.ctx.beginPath();
            this.chart.ctx.arc(pointLabelPosition.x, pointLabelPosition.y, 5, 0, 2 * Math.PI, false);
            this.chart.ctx.fillStyle = '#77e';
            this.chart.ctx.fill();
            this.chart.ctx.stroke();
        }
    }
});
    }

      </script> 
   </head> 
   <body> 
      <canvas id="myChart" height="400" width="400"></canvas>  
   </body>
</html>

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