edward@ukecc.UUCP (Edward C. Bennett) (07/25/86)
In article <1686@eagle.ukc.ac.uk>, msp@ukc.ac.uk (M.S.Parsons) writes: > > PICTURE FORMAT > The original format for each drawing is simply a list of line specifications, > one per line in the form: x1 y1 x2 y2. To reduce the size of this file, these > absolute coordinates are converted into relative coordinates. Then the file > is compressed using compress (V4.0). Finally the file is uuencoded. So to > view the picture: uudecode the picture file, uncompress it, pipe it through > the relative to absolute coordinate filter and display on your favourite > device. > > PICTURE SIZE > Bytes > 94553 fish1 > 66278 fish1.r > 20090 fish1.r.Z > 27703 fish1.r.Z.uu > Number of lines: 5973 > Min x and y: 0 0 > Max x and y: 1024 1024 > Somewhere between England and Kentucky the picture files got munged. I'll describe the problems with fish1. 'fish2' acted similarly. Comparing the file sizes, my .Z file was the correct size so I thought everything was OK. But after uncompression my .r file was 3 bytes too small. Examination of the file revealed 8 munged lines, all ending with a '-'. e.g. 16 11 -3 - Sometimes the next line contained a lone '2', sometimes it was blank. I tried just joining the two lines, adding a '2' if the next line was blank, but that didn't work. Apparently, the problem is in the encoded file. Has this happened to anyone else? Could this have been caused by the BITNET? (Our news arrives via BITNET.) Would someone out there who has this working be willing to mail me (UUCP) their copies of the .uu files? -- Edward C. Bennett UUCP: ihnp4!cbosgd!ukma!ukecc!edward Kentucky: The state that needs a lottery to educate it's children. "Goodnight M.A."
zben@umd5 (Ben Cranston) (07/27/86)
In article <547@ukecc.UUCP> edward@ukecc.UUCP (Edward C. Bennett) writes: > ...Somewhere between England and Kentucky the picture files got > munged. > ...Could this have been caused > by the BITNET? (Our news arrives via BITNET.) Would someone out there > who has this working be willing to mail me (UUCP) their copies of > the .uu files? I can FTP the files down to UMD2 and send them via BitNet. It is quite possible that truncation to 80 column format when the message was passed to BitNet is the culprit. Mail on BitNet is a virtual punch file, and we all know virtual cards can't have more than 80 columns, right? I got the small fish to work OK, but when I try to print the big one the Imagen (8x300) says "print error" and seems to lose itself in the complexity at the top and bottom of the page. Anyone else seen this happen? Is there some easy fix? -- umd5.UUCP <= {seismo!umcp-cs,ihnp4!rlgvax}!cvl!umd5!zben Ben Cranston zben @ umd2.UMD.EDU Kingdom of Merryland Sperrows 1100/92 umd2.BITNET "via HASP with RSCS"