ENGINEERING CONCEPTUAL DESIGN AND PROMOTION SERVICES--------
able to get CAD drawings into PDF format is something that has
been addressed by newer versions of software. Yet, issues involved
with the process seem to drive some engineers crazy. (Been there,
done that! While this might not make much sense to someone who
hasn't tried it, it is a BIG deal to those of us in the industry
who provide images to professional bureaus.)
- First, there is the issue of perspective
3D views and then adding annotations. Then, cross-platform utilization
where we can generate a picture for use on the Internet from that
same image. Hidden lines, file management, Internet viewing vs
page printing.... and the list goes on.
- Bitmaps are of little use in professional
printing because of their size to resolution ratio. PDF documents
for insertion into high-quality magazines offer much, MUCH higher
resolution at the same or even less data size. Even though a
PDF image might be smaller than a bitmap, if you print the image
(above text line) it should print at 5-1/8" x 6-1/2"
with only moderate resolution. Fine for most general uses but
not for professional printing.
- If you open the PDF and print it at its
actual size of 2-1/2" x 3-3/4"(which is the size they
would use in the magazine) you see a noteable difference, but
not as much as you would by changing your setting in the PDF
viewer to print the document to the full size of the page. You
are still printing the same image, it just expands vector lines
rather than raster pixels so the image maintains it's clarity.
|OTHER COMMENTS ON USING THE PDF FORMAT WITH AUTOCAD
a drawing says 1/8" = 1ft, that is only true if the printer/plotter
being used is printing to the same paper size as the original
architect used. In todays world of having a printer for every
computer that is probably not going to be the case. When we assume
that the documents we produce will be going out for review to
anywere in the world we embed a scale into the drawing so that
no matter what printer is used, if you maintain the same aspect
ratio you can use the scale in the drawing to measure with.
some cases we will get a drawing from the manufacturer and then
need to turn around and send it to a client who doesn't have
AutoCAD capabilities. In that case, if we want them to see it
exactly as we do, we'll simply do a straight conversion and embed
the PDF drawing into an e-mail and send it directly. It doesn't
take long before that becomes the standard of communicating between
our office using the .dwg format and the client.
it's not the client who doesn't understand the concept. It might
be someone else and while not in the forefront of decision making,
still on the team. We can help visualize and communicate the
concept using an exploded view without tampering with the original
drawing and then send a PDF for you to view, print, or forward
to others around the world in a matter of minutes.
layout from AutoCAD to PDF for letter size printing shows multiple
pages of a design in the same document. The first page is not
the same scale as the remaining four, however, there is a scale
in each page that is relative to that image on that
page. If you set the print options in Adobe to "Fit to printer
margins" and print pages 2-5, then staple them together
directly over each other you can flip through to follow the stairwell
down to each level until you arrive in the lower deck.
then we can take it to another level by embedding the AutoCAD
drawing into a Freehand document and marking it up with color
and more creative methods. This example can be used for review
by others in the design group, or, the annotations could have
been geared toward a magazine article to explain features, use
magnifed views, and any variety of other options.
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