Tomas,

the issue should be addressed in R-2.7-patched now (by splitting the lines as suggested by Brian and using CGContextStrokeLineSegments). Please try tonight's build tomorrow (from http:// r.research.att.com/ ). That gives already a boost of several orders of magnitude.

Thanks to everyone involved,
Simon


On Apr 26, 2008, at 9:23 PM, Tomas Mikoviny wrote:

Since installing new version (2.7.0) officially available from CRAN,
I've been experiencing extreme slow-down when visualizing data in
quartz device. If using same data with 2.6.2 branch everything works
just fine. I have tried clean installs in both cases (defult settings
for 2.6.2 and 2.7.0) with same results - quartz works flow less in
2.6.2 and 2.7.0 is just much much slower. I just can't wait 10 sec to
get one graph when I need to plot 10 other. For now I stick to older
version but....

Is there anyone else with the same problem?

tomas

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