Google Charts - Google Charts tutorial - Histogram Chart Colors - chart js - google graphs - google charts examples




What is a color histogram?

  • In image processing and photography, a color histogram is a representation of the distribution of colors in an image.
  • For digital images, a color histogram represents the number of pixels that have colors in each of a fixed list of color ranges, that span the image's color space, the set of all possible colors.

Configurations:

  • We've used color configuration to change default color of histogram chart.
// Set chart options
var options = {
   colors: ['green']
};
Clicking "Copy Code" button to copy the code. From - google charts tutorial - team
  • We've used color configuration to change default color of histogram chart.
 Tryit<html>
<head>
<title>wikitechy Google Charts Tutorial</title>
   <script type="text/javascript" src="https://www.wikitechy.com/charts/loader.js"></script>
   <script type="text/javascript">
     google.charts.load('current', {packages: ['corechart']});     
   </script>
</head>
<body>
<div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div>
<script language="JavaScript">
function drawChart() {
   // Define the chart to be drawn.
 var data = google.visualization.arrayToDataTable([
      ['Student Roll No', 'height'],
      ['1', 80],['2', 55],['3', 68],['4', 80],['5', 54],
      ['6', 70],['7', 85],['8', 78],['9', 70],['10', 58],
      ['11', 90],['12', 65],['13', 88],['14', 82],['15', 65],
      ['16', 86],['17', 45],['18', 62],['19', 84],['20', 75],
      ['21', 82],['22', 75],['23', 58],['24', 70],['25', 85]		  
      ]);
  
   // Set chart options
   var options = {
      title: 'Students height, in cm',
      legend: { position: 'none' },
      colors: ['green']
   };				

   // Instantiate and draw the chart.
   var chart = new google.visualization.Histogram(document.getElementById('container'));
   chart.draw(data, options);
}
google.charts.setOnLoadCallback(drawChart);
</script>
</body>
</html>
Clicking "Copy Code" button to copy the code. From - google charts tutorial - team

Output:


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