Set the sizeAxis.minSize option; this takes an integer value which sets the
minimum size of a marker in pixels (default is 3), eg:
sizeAxis: {
minSize: 6 // set the minimum size of a marker to be 6 pixels
}
On Tuesday, October 30, 2012 5:00:07 AM UTC-4, Firdan Machda wrote:
>
> is it possible to give a minimum size for the marker?
>
> On Thursday, August 9, 2012 1:31:50 AM UTC+7, asgallant wrote:
>>
>> Marker size is determined by the relative differences between data points
>> (ie, the smallest value gets the smallest marker, while the largest value
>> gets the largest marker, and everything in between scales linearly). When
>> all the marker values are the same, the API assigns each point an
>> average-size marker - there is no way to tell the API how big
>> "average-size" should be, though.
>>
>> As far as color-index, you need to assign colorAxis.minValue and
>> colorAxis.maxValue so the API can know where 0 falls in the scale.
>>
>> On Wednesday, August 8, 2012 11:05:48 AM UTC-4, daxu wrote:
>>>
>>> Hello everyone,
>>>
>>> Very new to google geo chart. From the document, it says that I can set
>>> marker size and colour (in the markers Mode format section).
>>>
>>> However, I can't make it work.
>>>
>>> My script:
>>> <script type="text/javascript">
>>>
>>> google.load('visualization', '1', { 'packages': ['geochart'] });
>>> google.setOnLoadCallback(drawRegionsMap);
>>>
>>> function drawRegionsMap() {
>>>
>>> var data = new google.visualization.DataTable();
>>>
>>> data.addColumn('number');
>>> data.addColumn('number');
>>> data.addColumn('number');
>>> data.addColumn('number');
>>>
>>> var markersize = 4;
>>> var markercolour = 0;
>>> data.addRows([
>>> [41.8776, -87.6272, markercolour , markersize],
>>> [39.97919999999999, 116.29919999999998,markercolour , markersize ],
>>> [56.0, 10.0, markercolour , markersize],
>>> [62.0, 15.0, markercolour ,markersize ]
>>> // data truncated for posting
>>> ]);
>>>
>>>
>>> var options = {
>>> displayMode: 'markers',
>>> datalessRegionColor: 'd1dedf',
>>> colorAxis: {colors: ['red','green']}
>>> };
>>>
>>> var chart = new
>>> google.visualization.GeoChart(document.getElementById('chart_div'));
>>> chart.draw(data, options);
>>> }
>>> </script>
>>>
>>> Seems doesn't matter if I set it to 4 or 24, the markers are the same
>>> size, also it ignores the colour index.
>>>
>>> Can someone help?
>>>
>>> Many Thanks
>>>
>>
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