Google Chart - date & gridlines -


this strange thing seeme let me see 4 gridlines on horizontal line. can help?

<html>   <head>     <script type="text/javascript" src="https://www.google.com/jsapi"></script>     <script type="text/javascript">       google.load("visualization", "1", {packages:["corechart"]});       google.setonloadcallback(drawchart);       function drawchart() {         var data = new google.visualization.datatable();   data.addcolumn('date', 'date');   data.addcolumn('number', 'now');   data.addcolumn('number', 'comparison');   data.addrows([     [new date(2008, 1 ,1),  1264,      1477],           [new date(2008, 1 ,2),  1499,      1406],           [new date(2008, 1 ,3),  1322,       1105],           [new date(2008, 1 ,4),  1147,      1154],           [new date(2008, 1 ,5),  1309,      1227],           [new date(2008, 1 ,6),  1251,      1298],           [new date(2008, 1 ,7),  1238,      1264],           [new date(2008, 1 ,8),  1264,      1477],           [new date(2008, 1 ,9),  1499,      1406],           [new date(2008, 1 ,10),  1322,       1105],           [new date(2008, 1 ,11),  1147,      1154],           [new date(2008, 1 ,12),  1309,      1227],           [new date(2008, 1 ,13),  1251,      1298],           [new date(2008, 1 ,14),  1238,      1264],           [new date(2008, 1 ,15),  1789,      1256],           [new date(2008, 1 ,16),  1789,      1078],           [new date(2008, 1 ,17),  1965,      975],           [new date(2008, 1 ,18),  1654,      896],           [new date(2008, 1 ,19),  1478,      789],           [new date(2008, 1 ,20),  1278,      989],           [new date(2008, 1 ,21),  1078,      1009],           [new date(2008, 1 ,22),  1698,      1109],           [new date(2008, 1 ,23),  1398,      1209],           [new date(2008, 1 ,24),  1298,      1509],           [new date(2008, 1 ,25),  1298,      1009],           [new date(2008, 1 ,26),  1198,      1209],         ]);         var chart = new google.visualization.linechart(document.getelementbyid('chart_div'));         chart.draw(data);       }     </script>   </head>   <body>     <div id="chart_div" style="width: 2000px; height: 1000px;"></div>   </body> </html>

the default behavior charts use 5 gridlines. see the documentation under haxis.gridlines.count.

if want increase number of gridlines, set options in chart. instance:

chart.draw(data, {vaxis: {gridlines: {count: 100}}})

here sample whole mess of gridlines (from google playground above option added):

function drawvisualization() {   // create , populate data table.   var data = google.visualization.arraytodatatable([     ['x', 'cats', 'blanket 1', 'blanket 2'],     ['a',   1,       1,           0.5],     ['b',   2,       0.5,         1],     ['c',   4,       1,           0.5],     ['d',   8,       0.5,         1],     ['e',   7,       1,           0.5],     ['f',   7,       0.5,         1],     ['g',   8,       1,           0.5],     ['h',   4,       0.5,         1],     ['i',   2,       1,           0.5],     ['j',   3.5,     0.5,         1],     ['k',   3,       1,           0.5],     ['l',   3.5,     0.5,         1],     ['m',   1,       1,           0.5],     ['n',   1,       0.5,         1]   ]);    // create , draw visualization.   new google.visualization.linechart(document.getelementbyid('visualization')).       draw(data, {curvetype: "function",                   width: 500, height: 400,                   vaxis: {maxvalue: 10, gridlines: {count: 100}}                  }           ); }

as aren't specifying how many gridlines expect, please edit above suit needs.


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