Thank you very much!
But the speed of changing range is still too low.The delay is very obvious
when the number of the points is large.
I dont know how to speed up the chart and make it more smooth when change
the rangefilter state.
在 2012年8月31日星期五UTC+8下午11时43分11秒，asgallant写道：
>
> Ahh...the last row is probably missing from the rangeRows array. Try
> building rangeRows like this instead:
>
> // use every 10th row for the rangeFilter
> var rangeRows = [];
> for (var i = 0; i < data.getNumberOfRows(); i++) {
> if (!(i % 10)) {
> rangeRows.push(i);
> }
> }
>
> // check to see if the last row is included
> // if it isn't, add it
> if (rangeRows[rangeRows.length - 1] != data.getNumberOfRows() - 1) {
> rangeRows.push(data.getNumberOfRows() - 1);
> }
>
> See it in action here: http://jsfiddle.net/asgallant/zRjX5/
>
> On Thursday, August 30, 2012 10:14:00 PM UTC-4, Ji Joe wrote:
>>
>> Thank yor for your advise.I did as your example. But when the chart
>> showed, the first right ten points in the chart were missing. Are there
>> any solutions for this problem?
>>
>> 在 2012年8月31日星期五UTC+8上午12时53分13秒，asgallant写道：
>>>
>>> Performance problems with the ChartRangeFilter are usually because the
>>> data set contains a large number of rows of data. If you use a DataView to
>>> filter the data rows used by the filter, then you might fix the performance
>>> problem. Here's an example: http://jsfiddle.net/asgallant/zRjX5/
>>>
>>> On Thursday, August 30, 2012 3:48:02 AM UTC-4, Ji Joe wrote:
>>>>
>>>> I have painted some charts using google chart tools and it performs
>>>> well in chrome ,firefox or other bowsers even in IE9. But when i make it
>>>> run in IE8, it couldnot work.
>>>> More specified , the chart with chartRangeFilter function usually do
>>>> not work, sometimes it perfoms, but the range of the control is in mess
>>>> ,and many options of chart are not work.
>>>> sometimes it shows nothing and the ie warm jumps out to show my script
>>>> is wrong .
>>>> Other charts can perform but need a long time wait.
>>>> The problem really confuse me.Thank you a lot if you could give me a
>>>> help :-)
>>>>
>>>
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