[cairo] Radial gradient
Zhu, Wei (Clark)
wzhu at microstrategy.com
Tue Jun 30 18:33:40 PDT 2009
Hi all,
Cairo can provide the great functionality to generate the pdf file.
Recently, I did some research on how to transfer the pdf file from Cairo
to my preferred one.
See the attachments. The file mstrWeb_363777_EE_Embedded.pdf is
transferred from 7401.R012_Pie_NoDepth.pdf.
The Cairo output is like the following:
However, the transferred result is like the following:
As you can see, the top of pie in transferred result is whiter than
Cairo output. Meanwhile, the bottom is darker than Cairo output.
Previously, I thought we may have some gradient objects of Cairo output
missing when parsing it. After I checked the source file of
mstrWeb_363777_EE_Embedded.pdf.I found "31 0 obj"( a radial gradient)
doesnot work. Could anyone explain why? I guess this is related to
coordinate system. Any reply will be nice
Thanks,
Clark
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