The ChartRangeFilter doesn't care where you get your data from. First, you
need to convert your chart from a chart object to a ChartWrapper object.
This code:
var options = {
theme: 'maximized'
};
var chart = new
google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
becomes this:
var chart = new google.visualization.ChartWrapper({
chartType: 'LineChart',
containerId: 'chart_div',
options: {
// options for the chart - I'll go over recommendations for these
below
theme: 'maximized'
}
});
Then, you need to create a ControlWrapper for the ChartRangeFilter:
var control = new google.visualization.ControlWrapper({
controlType: 'ChartRangeFilter',
containerId: 'control_div',
options: {
filterColumnIndex: 0, set the column index to filter on here
ui: {
chartOptions: {
// options for the chart inside the filter - I'll go over
recommendations for these below
}
}
}
});
Then create a Dashboard object, bind the control to the chart, and draw the
Dashboard:
var dashboard = new
google.visualization.Dashboard(document.querySelector('#dashboard'));
dashboard.bind([control[, [chart]);
dashboard.draw(data);
In your HTML, you need to add a div for the control and a div for the
dashboard that wraps the control and chart:
<div id="dashboard">
<div id="chart_div" style="width: 850px; height: 500px;"></div>
<div id="control_div" style="width: 850px; height: 50px;"></div>
</div>
Typically, most users set the width of the chart and control to the same
value. You can either do this via styling the divs or via the chart's
"width" and control's "ui.chartOptions.width" options (I styled the divs
here, since that's what your original code does). To align the chart and
control further, you need to set the chartArea.left and chartArea.width
options for the chart and the control's internal chart. These values can
either be a number (pixels) or a string (percent of the total width). Set
the to the same values for both the chart and control to make them align.
If there is a large gap between the chart and control, you can narrow that
by setting the chartArea.top and chartArea.height options on the chart.
var chart = new google.visualization.ChartWrapper({
chartType: 'LineChart',
containerId: 'chart_div',
options: {
chartArea: {
left: '10%',
width: '65%',
top: '10%',
height: '80%'
},
theme: 'maximized'
}
});
var control = new google.visualization.ControlWrapper({
controlType: 'ChartRangeFilter',
containerId: 'control_div',
options: {
filterColumnIndex: 0, // set the column index to filter on here
ui: {
chartOptions: {
chartArea: {
left: '10%',
width: '65%'
}
}
}
}
});
Other options are covered in the ChartRangeFilter
documentation<https://developers.google.com/chart/interactive/docs/gallery/controls#chartrangefilter>
.
On Wednesday, May 21, 2014 11:40:45 AM UTC-4, Joey D'Anna wrote:
>
> Sorry - i meant chartrangefilter not range select
>
> On Wednesday, May 21, 2014 11:39:54 AM UTC-4, Joey D'Anna wrote:
>>
>> Hi guys - I have a site that uses a php script to feed JSON data to a
>> google line chart.
>> I would love to retrofit it to use the new ChartRangeFinder control so i
>> can zoom in and out of the chart, but I dont really know javascript very
>> well so im not sure how to go about it.
>>
>> Right now here is my javascript code:
>>
>> <script type="text/javascript">
>>
>> $.ajaxSetup ({
>>
>> // Disable caching of AJAX responses */
>>
>> cache: false
>>
>> });
>>
>> google.load("visualization", "1", { packages: ["corechart"] });
>>
>> google.setOnLoadCallback(drawChart);
>>
>> function drawChart() {
>>
>> var jsonData = $.ajax({
>>
>> url: "chartselect.php?limit=<?php echo $limit;?>&s1=<?php
>> echo $s1;?>&s2=<?php echo $s2;?>&s3=<?php echo $s3;?>&s4=<?php echo
>> $s4;?>&s5=<?php echo $s5?>&s6=<?php echo $s6?>",
>>
>> dataType: "json",
>>
>> async: false
>>
>> }).responseText;
>>
>> var obj = jQuery.parseJSON(jsonData);
>>
>> var data = google.visualization.arrayToDataTable(obj);
>>
>> var options = {
>>
>> theme: 'maximized'
>>
>> };
>>
>> var chart = new
>> google.visualization.LineChart(document.getElementById('chart_div'));
>>
>> chart.draw(data, options);
>>
>> }
>>
>> function refreshChart() {
>>
>> setInterval(function() { drawChart() }, 60000);
>>
>> };
>>
>> $(document).ready(function() {
>>
>> refreshChart();
>>
>> });
>>
>> </script>
>>
>>
>>
>> and in the HTML i have a div for the chart:
>> <div id="chart_div" style="width: 850px; height: 500px;"></div>
>>
>>
>> Is there an easy way to add the RangeSelect to this? I haven't been able
>> to find an example of one where it pulls JSON data from another php page
>> yet.
>> thanks
>>
>>
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