Mercurial > octave-antonio
view examples/oregonator.cc @ 17118:c97a26408ee0
Implement PixelRegion option for imread().
* imread.m: document new option.
* private/__imread__.m: parse new option and set defaults.
* __magick_read__.cc (calculate region): new option to calculate the region
to be read, shifts in memory required, and output image size.
(read_indexed_images, read_images): implement reading of only specific
regions of an image.
(__magick_read__): get octave_scalar_map at start for simplicity.
author | Carnë Draug <carandraug@octave.org> |
---|---|
date | Wed, 31 Jul 2013 21:28:48 +0100 |
parents | 4295d634797d |
children | 224e76250443 |
line wrap: on
line source
#include <octave/oct.h> DEFUN_DLD (oregonator, args, , "The `oregonator'.\n\ \n\ Reference:\n\ \n\ Oscillations in chemical systems. IV. Limit cycle behavior in a\n\ model of a real chemical reaction. Richard J. Field and Richard\n\ M. Noyes, The Journal of Chemical Physics, Volume 60 Number 5,\n\ March 1974.") { ColumnVector dx (3); ColumnVector x (args(0).vector_value ()); dx(0) = 77.27 * (x(1) - x(0)*x(1) + x(0) - 8.375e-06*pow (x(0), 2.0)); dx(1) = (x(2) - x(0)*x(1) - x(1)) / 77.27; dx(2) = 0.161*(x(0) - x(2)); return octave_value (dx); }