Is there any solution to change the background color from black to white? On Saturday, March 1, 2014 1:15:30 AM UTC+5:30, Sunny Daniel wrote: > > Hi, > > Currently I am using new feature provided by Google API to store the chart > as PNG. After drawing the chart we need to call the new method > getImageURI() to render the PNG format of the chart. > > > <https://lh6.googleusercontent.com/---zqod63pzI/UxDmkQukmVI/AAAAAAAAAhg/dlHz206AXEc/s1600/line_chart_png.png> > However for LineChart, i am seeing a different behaviour. The PNG for > Linechart is filled with black color in the area between the trend lines. > Below is the sample code. I am experiencing this behaviour on Firefox and > other browsers. Please suggest if there is any way to remove the black > color from the background. > > <html> > <head> > <script type="text/javascript" src="https://www.google.com/jsapi > "></script> > <script type="text/javascript"> > google.load("visualization", "1.1", {packages:["corechart"]}); > google.setOnLoadCallback(drawChart); > function drawChart() { > var data = google.visualization.arrayToDataTable([ > ['Year', 'Sales', 'Expenses'], > ['2004', 1000, 400], > ['2005', 1170, 460], > ['2006', 660, 1120], > ['2007', 1030, 540] > ]); > > var options = { > title: 'Company Performance', > > }; > > var chart = new > google.visualization.LineChart(document.getElementById('chart_div')); > chart.draw(data, options); > chart_div.innerHTML = '<img src="' + chart.getImageURI() + '">'; > alert(chart.getImageURI()); > } > </script> > </head> > <body> > <div id="chart_div" style="width: 900px; height: 500px;"></div> > </body> > </html> > > > Thanks >
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