Thanks Kobchenko, it works. On 5/7/06, Oleg Kobchenko <[EMAIL PROTECTED]> wrote:
Pixeldata is raveled matrix of RGB pixels. A pixel is an integer 256#.R,G,B (each 0..255). load'viewmat' coinsert 'jgl2' '`R G B'=: (256*256*])`(256*])`] lt=: >/~i.8 8 ut=: </~i.8 di=: =/~i.8 ut;lt;di +---------------+---------------+---------------+ |0 1 1 1 1 1 1 1|0 0 0 0 0 0 0 0|1 0 0 0 0 0 0 0| |0 0 1 1 1 1 1 1|1 0 0 0 0 0 0 0|0 1 0 0 0 0 0 0| |0 0 0 1 1 1 1 1|1 1 0 0 0 0 0 0|0 0 1 0 0 0 0 0| |0 0 0 0 1 1 1 1|1 1 1 0 0 0 0 0|0 0 0 1 0 0 0 0| |0 0 0 0 0 1 1 1|1 1 1 1 0 0 0 0|0 0 0 0 1 0 0 0| |0 0 0 0 0 0 1 1|1 1 1 1 1 0 0 0|0 0 0 0 0 1 0 0| |0 0 0 0 0 0 0 1|1 1 1 1 1 1 0 0|0 0 0 0 0 0 1 0| |0 0 0 0 0 0 0 0|1 1 1 1 1 1 1 0|0 0 0 0 0 0 0 1| +---------------+---------------+---------------+ c=: 255 <[EMAIL PROTECTED] * 0":(R 0.5 c ut)+(G 1 c lt)+(B 0.5 c di) 127 8323072 8323072 8323072 8323072 8323072 8323072 8323072 65280 127 8323072 8323072 8323072 8323072 8323072 8323072 65280 65280 127 8323072 8323072 8323072 8323072 8323072 65280 65280 65280 127 8323072 8323072 8323072 8323072 65280 65280 65280 65280 127 8323072 8323072 8323072 65280 65280 65280 65280 65280 127 8323072 8323072 65280 65280 65280 65280 65280 65280 127 8323072 65280 65280 65280 65280 65280 65280 65280 127 scale=: [ #"1 # 2 scale i.2 2 0 0 1 1 0 0 1 1 2 2 3 3 2 2 3 3 NB. viewmat is BGR, for some reason viewrgb P=: 10 scale (R 0.5 c ut)+(G 1 c lt)+(B 0.5 c di) $P 80 80 wd 'pc f closeok;xywh 0 0 40 40; cc g isigraph;pas 0 0;pshow;' glpaintx glpixels 0 0,(|:$P),,P --- dai rui <[EMAIL PROTECTED]> wrote: > HI, > > I am not sure how to use glpixels for drawing a pic with RGB data. The help > file give me none practical info. What exactly the pixeldata is ??? > > Regards! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
