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PNG-Export - Compression level

Posted: Thu Apr 02, 2009 3:00 pm
by 10551564
Hi,

using the PNG-Export function there is no difference in the quality of the image and in the filesize between compression level 0 and compression level 9.

I presume this is not intended?


Best regards

Heinz

Posted: Mon Apr 06, 2009 1:52 pm
by narcis
Hi Heinz,

We have investigated the issue here. Code seems correct and compression level is being applied correctly. It can be observed if producing much bigger and colorful images, for example a surface series with many different colors.

Posted: Thu Apr 09, 2009 11:58 am
by 10551564
Hi Narcis,

many thanks for checking this item and confirming that it works well.

But even for charts with many series and many different colors the difference between the compression levels is very small. So in most cases there is no advantage for the user to take a higher compression level.

Best regards

Heinz