Lines disappear when plotting - Thread from Printing-Plotting Discussion

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======================
Subject:
RE: Lines disappear when plotting - Thread from
Printing-Plotting Discussion
Date:
Wed, 20 Aug 2003 11:32:57 -0700
From:
aart <>
Newsgroups:
autodesk.autocad.customization




Here is a PDF example of the resulting issue...
....will not be able to send DWG due to confidential nature of the
content.

To recap:
From: aart
Date: Aug/19/03 - 18:24 (GMT)

This is something that has been happening for many versions of
ACAD and I have gotten so fed up with it that I tyhought I
would ask someone. ISSUE: When printing 3D solids in a viewport,
occasionally lines which describe the edge of objects do
not print or preview. These are not adjacent objects, but
stand-alone objects. Most of the objects describing edges print,
but
not all of the object. I have tried video drivers, video
accelleration configuration, line weights, cranking up the arc
and circle
smoothness, segments in a polyline curve, rendered object
smoothness, contour lines per surface. None of these variables
seem to even affect this phenomenon in the least. Anyone with any
nifty ideas? my email is
=========================================
From: Jon Kirkham
Date: Aug/19/03 - 18:53 (GMT)

Layer set to off or no plot?
SHADEMODE 2D?
Hideplot off?

===========================================

From: aart
Date: Aug/20/03 - 16:23 (GMT)
Jon, as I mentioned, the issue is that some lines that would
describe the edge of various, random objects do not print. Not
entire objects, just parts of objects. And not in areas where two
3D objects coinside. It sometimes is an object all by itself.
The objects layer is on (of course), shademeode is wireframe, and
hideplot is on only for the viewport - not the plot.
=========================================

From: aart
Date: Aug/20/03 - 16:32 (GMT)
....oh, and all other layers are frozen in the viewport, so it's
not that off/unfrozen objects are in front of the areas that are
not
printing. I already thought of that...
....also, this phenomenon happens on various machines with various
video cards and drivers. Windows 95 to XP, ACAD 14
to 2002. So it does not seem isolated to a particular video
scheme (ATI, Invidia, etc.), operating system, or ACAD version.
If it is a bug, it is prevalent.
===================================================

From: Dean Saadallah
Date: Aug/20/03 - 17:02 (GMT)
Without a sample file for other to examine on their own, it's
difficult to
suggest a remedy remotely like this. You also don't mention
parameters
anyone can reproduce: paper or modelspace, HIDEPLOT or HIDE, UCS
settings,
plotting or printing to what, using what drivers and PC3 files,
entity
details and so on.

Customer Files at http://discussion.autodesk.com is the place to
upload a
file if that's an option. Make sure it is one you have issues
with.

--
Dean Saadallah
Add-on products for LT
http://www.pendean.com/lt
--

===============================================

From: aart
Date: Aug/20/03 - 18:10 (GMT)
Let's see. Parameters. Since I mentioned this was printing from a
viewport with hideplot (on the viewport not in the plot
dialog), that would mean paperspace. I'm not sure how UCS
settings would apply here. Plotting to what... hmmm... take
your pick. Plotter (HPGL2, HPGL, Postscript, Raster, Acrobat)
does not matter. This occurs in ANY plot or preview.
Drivers. Well, I can tell you what we are using at the moment:
ATI Fire GL E1 Bios 1.01, Chip Type FGL 8800, Internal
DAC 350Mhz, 64MB VideoRam. Driver versions 6.12.10.3044 through
6.12.10.3056 And that is just what we are using
here now. The other systems, some are using ATI Rage 8500,
Invidia... on and on. It is NOT isolated to a particular video
card or driver... as I mentioned. We are not using a PC3 file
since this is ACAD 2000 and 2002. Entity details... 3D solids
only... which have undergone Solidcheck and passed. ...and so
on... We are not using esoteric settings, unorthodox
configurations or equipment. We are all expert, veteran ACAD
users since v3 or 4. We know what we are talking about and
how to use ACAD but have been experiencing what we believe to be
a bug is ACADs ability to preview and plot complex
verticies. As far a uploading the files in question, well, withh
all the XREF's we are looking at around 60MB. How about a
PDF result of the issue for starters?

FIle: Example of lines dropping out.pdf