Many thanks Ric. That's exactly what I need. Ronan
On 16/08/2009 23:12, "Sherlock, Ric" <[email protected]> wrote: >> From: Ronan Reilly >> >> I'm trying to write a unix (Mac OS X) batch script to call viewmat >> repeatedly on about 150 files and save the resulting bmp files. >> However, >> viewmat can't be called within the J console. In fact, I don't really >> want >> to display the viewmat output directly, I'm just interested in the >> generating the bmp files. Is there any way of achieving this within >> jconsole? Failing that, is there any way of suppressing the display of >> the >> viewmat display within the GUI, while still being able to call savemat? >> > > Hopefully I've got this right: > You want to read a bunch of files that contain numeric arrays, convert each of > them to a bmp representation & save the conversions to file again? > You want to use Jconsole so any scripts that require Window Driver bits won't > work. > > AFAICS the bit of the viewmat script that does the numerical conversion > (doesn't have any wd bits) is getvm_jviewmat_ > > NB. ========================================================= > NB. getvm > NB. > NB. form: hue getvm data [;title] > NB. > NB. hue may be empty, in which case a default is used > NB. hue may be a N by 3 matrix of colors or a vector > NB. of RGB integers. > NB. > NB. returns: > NB. original data > NB. scaled data matrix > NB. angle (if any) > NB. title > > So you should be able to read a file, use getvm_jviewmat_ to convert them to > bmp matrix and then write that matrix to file > > require 'files bmp viewmat' > (50 5...@$10) fwrites jpath '~/temp/myfile.dat' NB. Create dummy data file > > convert2BMP=: 3 : 0 > fname=. >y > mydat=. fread fname > mydat=. 0&"....@}: ;._2 mydat NB. convert CRLF file to numeric matrix > bmpdat=. 1{:: '' getvm_jviewmat_ mydat > bmpdat writebmp 'bmp',~ _3}.fname > ) > > I'd probably use the J 'dir' script to list the files required and then > iterate through them. > > load 'dir' > files =. 1 dir jpath '~temp/*.dat' > convert2BMP"0 files > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
