On Wednesday, December 22, 2010 at 23:15:12 (+0000) Andrew Ross writes: > > Thread moved to plplot-devel as this is becoming a discussion on > new developments / improvements. > > On Wed, Dec 22, 2010 at 02:32:24PM -0800, Alan Irwin wrote: > > On 2010-12-22 11:00+0100 Jos? Luis Garc?a Pallero wrote: > > > > > Hello, > > > I think that PLPlot is a great tool. Thanks to the developers for > > > their hard work. I'm using PLPlot in order to draw worldmaps with > > > coastlines. I'm using plfill, plline and plmap functions and I find > > > they very useful. Nevertheless I have some minor problems (I'm using > > > PLPlot 5.9.7 compiled by me on a Debian GNU/Linux Sid). > > > > > > Using plfill I obtain a the message > > > > > > *** PLPLOT WARNING *** > > > plfill: too many points in polygon > > > > > > using polygons with 1000 vertices. Can I change the maximum number of > > > vertices at runtime or must I recompile the library?
> > > [snip] > > Arjen has already answered you in general terms on the PL_MAXPOLY > > question (currently set at a hard limit of 256 in include/plplotP.h). > > If you grep through our code for that symbol, you will notice a number > > of fixed arrays that are dimensioned with that value. I would welcome > > a patch to replace all of those with malloced (and freed) memory so we > > could do away with the PL_MAXPOLY limit completely. A cautionary note: PL_MAXPOLY impacts a fair amount of code. Also there are heap-vs-stack performance implications -- e.g. directly moving from a fixed allocation to a malloc/free each time plfill() is called could suck for the many small-n-vertices polygon case. Using per-stream polyline buffers is better but more convoluted. The short term solution is definitely just recompile with a higher limit. -- Maurice LeBrun ------------------------------------------------------------------------------ Learn how Oracle Real Application Clusters (RAC) One Node allows customers to consolidate database storage, standardize their database environment, and, should the need arise, upgrade to a full multi-node Oracle RAC database without downtime or disruption http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
