Highcharts-ng allows us to create charts without using the traditional syntax such as $('#container').high

After setting up the chart's configuration in my controller, I am facing an issue. The HighCharts-ng (an angularJS directive for HighCharts) has a method that I want to implement:

$scope.ohlcChartConfig = {            
        options: {.......

I need to achieve something similar to this line of code:

var chart = $('#container').highcharts();

This will allow me to utilize the following methods within highcharts-ng:

var svg = chart.getSVG();
chart.xAxis[0].addPlotBand({...})
chart.xAxis[0].removePlotBand('plot-id');

So far, I have attempted the following approach:

var chart= $scope.ohlcChartConfig;

Unfortunately, when trying to execute the methods, I encounter the error 'undefined is not a function'.

You can view a simplified version of the issue on this JSFiddle.

Thank you for any assistance provided.

Answer №1

After investigating sources related to highcharts-ng, it appears that the variable chart is not returned anywhere, which means direct access to methods from the Highcharts API is not available.

However, there is a simple workaround:

var chart = Highcharts.charts[0];

The Highcharts.charts array contains all charts on the page. You can see a demo here: http://jsfiddle.net/fxGq4/2/

It's important to note that when using the getSVG() method, a new chart is created in the background, which means the Highcharts.charts array may include more charts or show undefined when a chart is destroyed.

Additionally, remember to include the exporting.js file! Here is the URL:

http://code.highcharts.com/exporting.js
.

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