Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!purdue!decwrl!ucbvax!ENEEVAX.UMD.EDU!eugene From: eugene@ENEEVAX.UMD.EDU (Eugene Day) Newsgroups: comp.sys.sgi Subject: converting from raster to vector ??!! Message-ID: <8809230217.AA02355@eneevax.umd.edu> Date: 23 Sep 88 11:02:25 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 29 X-Unparsable-Date: Thu, 22 Sep 88 22:17:22 ]Io Date: Sun, 18 Sep 88 18:42:27 ]Io From: Russ ByrneTo: info-iris@BRL.MIL Subject: Pix file to HP-GL file conversion (for plotting) I neglected to specify what I meant by "pix" file format, as Phil Dykstra pointed out. I mean the format used in the BRL tools, i.e., the 24 bit per pixel color image format read by such utilities as pix-bw, etc. The files are called file.pix usually. What I'd like to be able to do is plot (on a large HP plotter) an image (mostly vectors) displayed on the IRIS screen, without recoding my graphics to use other plotting primatives discussed in the libplot documentation from BRL. I've got a utility that will dump the screen into .pix format, and then laser print on an Imagen laser printer (using pix-bw and bw-impress), but what about a nice big color plot? Has anyone done this? The main step is to convert the file from raster to vector format... The HP plotter is a vector device, and your original data is vector format. "derasterizing" is not straight forward, although there are image scanning systems which sort of do it with manual cleanup. I would strongly suggest diverting the data toward hard copy at an earlier stage in the process (before displaying to screen).