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[chart] rendering and resolution [message #975929]

Thu, 08 November 2012 02:23

Eclipse User

I am rendering charts with some labels rotated by 45°. This makes the font look bad. So i googled around and found:

http://www.birt-exchange.org/org/forum/index.php/topic/11781-poor-chart-font-quality/

but the solution there doesn't work so i tired this

dRenderer.setProperty(IDeviceRenderer.DPI_RESOLUTION, new Integer(300));

from here but this doesn't work neither.

actually neither the line above nor

bo.scale(72d / dRenderer.getDisplayServer().getDpiResolution());

seem to have any effect (neither separately nor together)?!

So what does those lines do and how they work? is there a way to get a better render quality by adjusting the resolution? or is this all bullshit?

Re: [chart] rendering and resolution [message #976855 is a reply to message #975929]

Thu, 08 November 2012 17:29

Eclipse User

What's your BIRT version?

Re: [chart] rendering and resolution [message #977387 is a reply to message #976855]

Fri, 09 November 2012 03:43

Eclipse User

4.2

Re: [chart] rendering and resolution [message #981394 is a reply to message #977387]

Mon, 12 November 2012 06:26

Eclipse User

i think this need a push to compensate the weekend gap.

Re: [chart] rendering and resolution [message #982429 is a reply to message #981394]

Tue, 13 November 2012 00:57

Eclipse User

You could try something like this in your beforeFactory:

importPackage(Packages.org.eclipse.birt.report.engine.api);
reportContext.getAppContext().put( EngineConstants.APPCONTEXT_CHART_RESOLUTION, 500 );

Let me know. This works for older versions, in PDF. For newer versions, last I checked, it seemed to just allow for closer zooming with no further clarification. If it doesn't help the clarity. Please search the bugs to see if this is already reported. If not, please do so. Thanks!

[Updated on: Tue, 13 November 2012 00:59] by Moderator

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