Well, after some messing around, it appears that the "relocated overbars" go away when the sheet to be printed is OPEN before printing. Not a problem for single-sheet schematics. Messier for big hierarchies. I still agree that the overbar is a bad crutch and should be avoided, but if you're in my boat where cleaning up old designs (renaming pins and net names to remove the \ before each character) may cause more problems than it solves, this is not a bad fix. And Protel, just why does the overbar rendering get screwed up when the file is closed but not when it's open? I also notice that when a .ddb is opened with all schematics "loaded", right-clicking on the schematic tab (not in the Explorer but in the main sheet window) shows the sheet at a completely-zoomed-out perspective before rendering it to fit the window. It's possible to see, in that second before the zoom/redraw catches up, the text strings hanging over the sheet edge and other artifacts. Still better than PADS, Drew John Haddy wrote: > > I have found that I can avoid the relocated overbars by ensuring > that PDFwriter is configured to embed all fonts, with no exclusions. > It makes the PDF a bit bigger, but at least I have a distributable > schematic! > > On the subject of naming conventions, we have numerous CAD packages > here (IC design (full custom and gate array), circuit simulation and > modelling, plus PCB level systems design). When moving data from one > package to another, one quickly learns that just about the only safe > non-alphanumeric character to use is underscore. So negated signals > are named: > > SIGNALNAME_n > > [Other rules include: first character must be alpha (not numeric); > all similar signals named consistently (for easy searching and > grouping e.g. all clocks are CLK_NAME1, CLK_NAME2, etc.); ...] > > Underscore has the problem that it is often obscured when used as > a net name in Protel, however we've had no problems with readability > because any "gap" in the readable text must be an underscore. So net > names like CLK_80MHZ_MODEM work just fine. > > Cheers, > > JohnH > > -----Original Message----- > From: TSListServer [mailto:[EMAIL PROTECTED]]On > Behalf Of Abd ul-Rahman Lomax > Sent: Friday, 9 February 2001 5:45 PM > To: Multiple recipients of list proteledausers > Subject: RE: [PROTEL EDA USERS]: PDF and/or Postscript generation with > "over-bars"? > > At 09:11 AM 2/8/01 -0600, John Lemburg wrote: > > >Don't use (*) asterisk as a suffix for negativity. Use the tilde (~). > >Instead, use the (*) asterisk as an AND operator in complex symbols, e.g., > >SEND * RESET~ In the same way, the (+) plus sign is the OR operator and > >"(+)" including the parentheses is the EX-OR operator. > > That certainly makes sense, however, in practice I have never received a > schematic with AND or OR operators in the signal names, and many > engineers,for many, many years, have used an asterisk after the name to > indicate negation. like R/W*, i.e., 1= READ and 0 = WRITE. > > And convention would have the asterisk follow the name. > > I'm not 100% certain but I don't think I've ever seen, here in the U.S., a > tilde. That doesn't mean that it isn't common, it just hasn't crossed my > virtual desk. > > [EMAIL PROTECTED] > Abdulrahman Lomax > P.O. Box 690 > El Verano, CA 95433 > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * > * This message sent by: PROTEL EDA USERS MAILING LIST > * > * Use the "reply" command in your email program to > * respond to this message. > * > * To unsubscribe from this mailing list use the form at > * the Association web site. You will need to give the same > * email address you originally used to subscribe (do not > * give an alias unless it was used to subscribe). > * > * Visit http://www.techservinc.com/protelusers/subscrib.html > * to unsubscribe or to subscribe a new email address. > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * > * This message sent by: PROTEL EDA USERS MAILING LIST > * > * Use the "reply" command in your email program to > * respond to this message. > * > * To unsubscribe from this mailing list use the form at > * the Association web site. You will need to give the same > * email address you originally used to subscribe (do not > * give an alias unless it was used to subscribe). > * > * Visit http://www.techservinc.com/protelusers/subscrib.html > * to unsubscribe or to subscribe a new email address. > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -- Drew Lundsten <[EMAIL PROTECTED]> direct +1.858.882.8828 Continuous Computing Corporation fax +1.858.777.3388 9380 Carroll Park Dr, San Diego 92121 cell +1.619.847.4251 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To join or leave this list visit: * http://www.techservinc.com/protelusers/subscrib.html * - or email - * mailto:[EMAIL PROTECTED]?body=leave%20proteledaforum * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
