Hi Eric, Eric Chassande-Mottin wrote:
> I have been working on exactly the same thing during the last three weeks! It's good to see other astronomy people working with octave. > I wouldn't have if I knew that you were about to submit a dedicated > package. Sorry for that. I have been using my code for quite a while now, and I also shared it with some other people. I felt, that is was time, to release the package to the puplic. > I attach my own code to this email. Checking quickly through your > code, I see that it might be useful to merge part of mine into yours such as > the interface to the header fields. You are right, there is currently no routine to write custom FITS headers (I never needed that). I think, I could implement it future, but feel free to modify the source in SVN. Maybe we should agree on the interface. The current features of my code are: * Reading FITS files with all valid datatypes (8,16,32,64,-32,-64) and storing them to an octave double array. Headers are read as well and stored into a string array. * Apart from 2d-images, 3d-cubes or multi-extension files can be read. * CFITSIO filters can be used in the filename to select frames/data. * Maximum array size is 2 GB, since (unexperimental) octave can't handle larger arrays. (It should be possible to read a subset of >2GB files, though I didn't try) * Saving octave arrays (2-d or 3-d, (1-d array will be saved as 2-d)) to FITS files with any valid dataytpe (8,16,32,64,-32,-64). * Type conversion is performed by CFITSIO. * 3-d arrays can be saved as a 3-d data cube or as multiple extentions. * Existing files will not be over-written unless the filename starts with an exclamation mark "!". * Written files maybe gziped transparently by appending ".gz" to the filename. * Sanity check of function parameters I hope, this list is complete. > You may consider also to use two .m files (readfits.m > and writefits.m) as an interface between the .oct binary and the user. Is there a specific reason using .m-functions to call .oct-routines? Dirk ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
