Hi!
Contouring with user-supplied translation function (mypltr) is very
very slow probably because of the perl calling overheads. Is there a
simple way to speed things up using Inline::C or Inline::Pdlpp?
Looking at the pp code of pdlcont, it clearly expects ref to a perl
sub, not C, so it is not trivial. Of course I could write a custom
stub for plcont just for this purpose but it does not sound very
elegant..
One possibility would be to ask the PLplot developers to add this
universal tr to the library:
mypltr(PLFLT x, PLFLT y, PLFLT *tx, PLFLT *ty, void *pltr_data)
{
*tx = tr[0] * x + tr[1] * y + tr[2];
*ty = tr[3] * x + tr[4] * y + tr[5];
}
Any ideas?
Thanks,
Kaj
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