Forcing BIRT to use specific sereis palette entry for a specific series type

josephnina

Hi
I have a stacked area chart containing three types plotted as a monthly chart(12 months on x axis).
1) Yes - Should be indicated with a green pattern
2) No - Should be indicated with a red pattern
3) N/A - Should be indicated with a grey pattern.
I have defined these three patterns using Series Palette / Embedded Image.

I use Optional Y Series grouping to spilt the types.

Currently I am letting BIRT pick up the patterns to be used automatically from the Series Palette.
Problem with this approach is BIRT starts mixing up the color/pattern as soon as a particular type is not present for the time period(For eg, if only types No and N/A are present, No is in green and N/A is in red).

Thinking of scripting it such that I can force BIRT to select the pattern to be used. I saw examples with forcing a colorDefinition for a series type but could not figure out how to force a particular embeddable image pattern as defined in the series palette as the pattern to be used for a series Type.

Please help.

Thanks and Regards
Joseph

josephnina

<p>Got a similar scenario for a bar chart. Was able to clone the palette defintions over to a temp variable and use the required palette entry using the below logic.</p><p>In case a type is missing, the chart will still be able to use the correct palette entry for the next type.</p><p> </p><p><strong class='bbc'>function</strong> beforeGeneration( chart, icsc )</p><p>{</p><p> </p><p> </p><p><strong class='bbc'>var</strong> yAxisSecondary = xAxis.getAssociatedAxes().get(1); //Secondary Bar Chart defined on second axis You may have to change this to 0 its ifs a primary series.</p><p><strong class='bbc'>var</strong> ySeriesDefBarChartVolume= yAxisSecondary.getSeriesDefinitions().get(0); //Bar Chart</p><p> </p><p> </p><p>//Setting porperties on Secondary Axis (Volume)</p><p><strong class='bbc'>var</strong> ySeries = ySeriesDefBarChartVolume.getRunTimeSeries();</p><p><strong class='bbc'>var</strong> numberofrunseries = ySeries.size(); </p><p>//loop thru all of the series</p><p> </p><p> </p><p>temp = ySeriesDefBarChartVolume.getSeriesPalette().getEntries().clone();   //Copying to a temp variable</p><p>ySeriesDefBarChartVolume.getSeriesPalette().getEntries().clear(); //Clearing palette</p><p> </p><p><strong class='bbc'>for</strong> (<strong class='bbc'>var</strong> i = 0; i < numberofrunseries; i++) { </p><p><strong class='bbc'>if</strong> ( ySeries.get(i).getSeriesIdentifier() == 'A' ) {</p><p>ySeries.get(i).setTranslucent(<strong class='bbc'>true</strong>); </p><p> </p><p>ySeriesDefBarChartVolume.getSeriesPalette().getEntries().add(temp.get(0)); //If type A exisits, use palette entry 0 for this type</p><p>}</p><p> </p><p><strong class='bbc'>if</strong> ( ySeries.get(i).getSeriesIdentifier() == 'B' ) {</p><p>ySeries.get(i).setTranslucent(<strong class='bbc'>true</strong>); </p><p>ySeriesDefBarChartVolume.getSeriesPalette().getEntries().add(temp.get(1));</p><p> </p><p> </p><p> </p><p> </p><p>}</p><p> </p><p><strong class='bbc'>if</strong> ( ySeries.get(i).getSeriesIdentifier() == 'C' ) {</p><p>ySeries.get(i).setTranslucent(<strong class='bbc'>true</strong>); </p><p>ySeriesDefBarChartVolume.getSeriesPalette().getEntries().add(temp.get(2));</p><p>}</p><p>} </p><p>}</p>