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chart script beforeDrawDataPointLabel question

somnix · 2015-07-22T13:03:48+00:00

Hello, i m trying to understand how is beforeDrawDataPointLabel() working . i made a simple report based on a flat file :

somnix

Hello,
 
i m trying to understand how is beforeDrawDataPointLabel() working .
 
i made a simple report based on a flat file :

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Clement Wong

The output you are seeing is because for each series, your counter will be reset to 0 in beforeDrawSeries.
 
You can move that first line to beforeGeneration:
<pre class="_prettyXprint">
function beforeGeneration( chart, icsc )
{
icsc.getExternalContext().getScriptable().setPersistentGlobalVariable("count","0");
}</pre>
Attached is a sample based Classic Models and with your code (slightly modified).

somnix

thanks a lot .... i was confused with serie and bar

somnix

One more question :
 
the sort is based on the "ranking" column of the dataset.
 
On the result, i can see that the last bar is sorted like this and first (or previous bar if many) is sorted
with the corresponding serie.
 
is there a way to sort another one than the last one or to sort each bar independently

Clement Wong

I'm not sure I quite understand your question.
 
The sort order will be dependent on the "Optional Y Series Grouping" sort options. You can change this via the Sort option in the Edit Chart > Select Data > Optional Y Series Grouping. In my example, the default is sorting by the "STATUS" from Z-A.
 
The sort order will be applicable to all the Categories (X) Series.

somnix

i ordered the series on the ranking column and here is the result :

Clement Wong

With OS BIRT, there is no straight-forward method to do this.
 
With commercial BIRT, we can use HTML5 (HighCharts) scripting to rearrange the stacking order based on size (<a data-ipb='nomediaparse' href='http://jsfiddle.net/sllimrovert/5dnekz0t/'>JSFiddle example</a>).

somnix

thanks a lot clement