Add Point Markers to a Google Chart Line Chart

It\’s pretty easy to add points or nodes to a google line chart.  The keys are to add the pointSize option to the chart options object.  By default, it\’s set to 0, so the points don\’t appear.  The color will set to be whatever you have set in your colors series.  Also note that the size is unitless:

    var options = {
       width:1000,
       height:500,
       backgroundColor: \'white\',
       chartArea: {backgroundColor: \'white\'},
       colors: [\'#639426\'],
       pointSize: 6
    };

This will output something like:

If you want to add strokes around each of those points, view my how to add stroke points to a Google line chart post.