Imagine, I want to end up with a large, 2D piddle $p, whose every element is a 1D piddle $q, so, really, a 3D piddle. But, it is easier to think of it as a 2D piddle, a rectangular grid of piddles.
This rectangular piddle is (i x j), say, (2000 x 1500). Each element in this (i x j) piddle has a serial number, starting at coordinates (0,0) at the top left, which is 1, and increasing to the right most edge, then down one row and left, then to the right most edge, and so on. So, in my example 2D (i x j) piddle, the bottom-most, right-most element's coordinates are (1999 x 1499) and its serial number is 3e6. I can get the content of any element in the 2D piddle with $p->at(x, y) where (x, y) is the coordinate pair. Also, thanks to David Mertens, if I know the serial number of an element, I can find its content with $p->flat->at(n), where n is its serial number between 1 and 3e6. Ok. Here's the rub. I don't have all the data. I get the data incrementally. That is, my 2k x 1.5k 2D piddle is really made up like a patchwork quilt, and I get the patches one at a time. Every patch is a series of 1D piddles ($q from my para 1 above) with a unique serial number between 1 and 3e6, so I know, for any set of 1D piddles, which patch they will go to. By the way, is there a PDL method to find the indexes (coordinate pair) of an element in my 2D piddle, given its serial number? I could write one in Perl, but PDL might have one already. So, I want to glue(), which, btw, is really clever method, my patches to each other, one by one, till they end up as the 2000x1500 2D piddle. How do I do the above? -- Puneet Kishor http://www.punkish.org Carbon Model http://carbonmodel.org Charter Member, Open Source Geospatial Foundation http://www.osgeo.org Science Commons Fellow, http://sciencecommons.org/about/whoweare/kishor Nelson Institute, UW-Madison http://www.nelson.wisc.edu ----------------------------------------------------------------------- Assertions are politics; backing up assertions with evidence is science ======================================================================= _______________________________________________ Perldl mailing list [email protected] http://mailman.jach.hawaii.edu/mailman/listinfo/perldl
