Change line color via script in a chart

I have a line chart that pulls data from a Trend Chart Query in Clear Quest. I would like to set the color of the lines via the script. Belos is the script I have - I am able to set the color of the datapoint and the legend but the line picks the default series colors. Please Help!

function beforeDrawLegendItem(lerh, bounds, icsc)
{

val = lerh.getLabel().getCaption().getValue();

fill = lerh.getFill();

if (val == "Open")

fill.set(255,0,0); // color red

else if(val == "Pending Verification")

fill.set(0,0,255); //color blue

else if (val == "Rejected-Closed")

fill.set(0,255,0); // color yellow

else if(val == "Fixed-Closed")

fill.set(0,0,0); //color black

}

function beforeDrawDataPoint(dph, fill, icsc)
{

if (dph.getSeriesValue() == "Open")

fill.set(255,0,0); // color red

else if(dph.getSeriesValue() == "Pending Verification")

fill.set(0,0,255); //color blue

else if(dph.getSeriesValue() == "Rejected-Closed")

fill.set(0,255,0); //color yellow

else if(dph.getSeriesValue() == "Fixed-Closed")

fill.set(0,0,0); //color black

}

function beforeDrawSeries(series, isr, icsc)
{

importPackage(Packages.org.eclipse.birt.chart.model.component.impl);
importPackage(Packages.org.eclipse.birt.chart.model.attribute);
var seriesID = series.getSeriesIdentifier();

if (seriesID == "Open")
{

series.getLineAttributes().getColor().set(255,0,0);

}
if (seriesID == "Pending Verification")
{
series.getLineAttributes().getColor().set(0,0,255);
}
if (seriesID == "Rejected-Closed")
{
series.getLineAttributes().getColor().set(0,255,0);
}
if (seriesID == "Fixed-Closed")
{
series.getLineAttributes().getColor().set(0,0,0);
}

}

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Comments

cypherdj

There's been a similar query not long ago, I think you need to use dph.getBaseDisplayValue() rather than dph.getSeriesValue() in your beforeDrawDataPoint function. 
 
See <a class='bbc_url' href='http://www.birt-exchange.com/forum/designing-birt-reports/14643-forcing-color-slices-pie-chart.html'>http://www.birt-exchange.com/forum/designing-birt-reports/14643-forcing-color-slices-pie-chart.html</a>

esuku

I made the follwoing change to the DrawData point function:

function beforeDrawDataPoint(dph, fill, icsc)
{

if (dph.getbasedisplayValue().contains('Open'))

fill.set(255,0,0); // color red

else if(dph.getbasedisplayValue().contains('Pending Verification'))

fill.set(0,0,255); //color blue

else if(dph.getbasedisplayValue().contains('Rejected-Closed'))

fill.set(0,255,0); //color yellow

else if(dph.getbasedisplayValue().contains('Fixed-Closed'))

fill.set(0,0,0); //color black

}
However i now get the error: TypeError: getbasedisplayValue is not a function.

PLEASE HELP!!!

mwilliams

esuku,

Try it with the 'b' and 'd' capitalized, getBaseDisplayValue().

esuku

I was able to over come the error, but the line still doesnt get the right color with the dph.getBaseDisplayValue().equals("Open")). The Data Points and legend get set to the right colors as per the script, but the lines between the data points use the color from the series palatte. Please help.

Thanks,
Elizabeth

mwilliams

Elizabeth,

It was nice meeting you at the IBM Rational show. If you can attach a sample report with sample data in a flat file that will allow me to run the report, like I mentioned at the show, that would help greatly! Thanks.

esuku

Michael,

Sorry for the delay.. here is the data, Thank you for your help!!!

-Elizabeth

mwilliams

Elizabeth,

Could you attach the report design as well?

esuku

Here you go...

Thanks for helping!

esuku

michael,

Did you get a chance to figure this out? Do you need anything else from me. Please do let me know.

stilden

I was wondering if you ever heard back on this.

Also, I have a need to get the chart type in general from within the report at generation/render time. Is there a method to do this?

mwilliams

Elizabeth,

Sorry for the delay. It seems that if you don't disable the palette for line color, it will still follow the palette color. If you put in the following line into your beforeDrawSeries script, the problem should be solved.

series.setPaletteLineColor(false);

esuku

Michael,

I added the line as per your suggestion but then i get an error stating - "setPaletteLinecolor is not a function"

I am using BIRT 2.2.1 - that comes with ClearQuest 7.1.

mwilliams

Elizabeth,

Hmmm. If that wasn't there in 2.2.1, it may have been a bug that was fixed for later versions. Let me look around a little more and try a few more things to see if I can solve your issue. I'll let you know if I find anything.

esuku

Thanks much for taking the effort to help me with this.

Uday Reddy

<blockquote class='ipsBlockquote' data-author="'mwilliams'" data-cid="51072" data-time="1248201463" data-date="21 July 2009 - 11:37 AM">
Elizabeth, 
 
 
Hmmm. If that wasn't there in 2.2.1, it may have been a bug that was fixed for later versions. Let me look around a little more and try a few more things to see if I can solve your issue. I'll let you know if I find anything. </blockquote>
Hi, I am facing the same issue. Have you got any solution. I am using BIRT 2.5.0.