Linetype scales
Luke Heathcote
no-one has ever been able to explain to me what the linetype scale number
actually refers to. I have to set it by a matter of guesswork. Is it scaling
to a reference or what?
Also, any tips on setting linetype scale in model space verses paper space,
with x-refs etc. Cheers
Harry Burt
definition. These represent the default (LTSCALE=1) length of each segment of
the line. When AutoCAD draws a line, it multiplies those numbers by LTSCALE to
creat the line. (BTW, most users I know like LTSCALE to be 1/2 of DIMSCALE )
If you change the scale of an individual line, the LTSCALE for the drawing is
used as a base. i.e., if LTSCALE is 4 and you set an indivisual line to 2, you
get that line at 4x2=8.
Mike Leonard
"Luke Heathcote" <luke.he...@virgin.net> wrote in message
news:85deo8$mp4$1...@nclient13-gui.server.virgin.net...
> I've been using Acad for about 3 years (since r13) and in all that time
> no-one has ever been able to explain to me what the linetype scale number
> actually refers to. I have to set it by a matter of guesswork. Is it
scaling
> to a reference or what?
Luke my son. Darth here. The linetype scale refers to the to the scale at
which you see the linetype and is a matter of guesswork when it is to be
set. The linetypes in the acad.lin file have a factor built in at a 1 to 1
scale that calculates the space or other attribute of the linetype. The
dashed linetype for instance - - - - has the same broken spacing as it does
line spacing. The LTSCALE determines the cooresponding spacing pattern for
a given scale factor.
> Also, any tips on setting linetype scale in model space verses paper
space,
Rule of thumb I use, may not work for all, is 25% (0.25) of preceive scale
in model space and 1 in paper space. Preceived meaning a best guess, as to
your view, scale.
Mike L
> with x-refs etc. Cheers
>
>
jo...@fel.u-net.com
If so, make sure you set defaults to "Iso" or "metric" (unless there
is a good reason to do otherwise).
The ratio between linetype definitions between "English" (huh) and
"metric" is not constant but varies around 20:1.
John
On Mon, 10 Jan 2000 20:29:48 -0000, "Luke Heathcote"
<luke.he...@virgin.net> wrote:
>I've been using Acad for about 3 years (since r13) and in all that time
>no-one has ever been able to explain to me what the linetype scale number
>actually refers to. I have to set it by a matter of guesswork. Is it scaling
>to a reference or what?
>Also, any tips on setting linetype scale in model space verses paper space,
>with x-refs etc. Cheers
>
>
Ian A. White
<luke.he...@virgin.net> wrote:
> I've been using Acad for about 3 years (since r13) and in all that time
> no-one has ever been able to explain to me what the linetype scale number
> actually refers to. I have to set it by a matter of guesswork. Is it scaling
> to a reference or what?
> Also, any tips on setting linetype scale in model space verses paper space,
> with x-refs etc. Cheers
Linetype definitions are defined in a .LIN file. The definition
represents the pen down and pen up motions in the pattern (with shapes
if you are using complex linetypes). By rights, the linetype scale
should match the drawing plotted scale if you are using model space.
Many use different multipliers, however there can be problems with the
true representation of patterns if the scale is too small for the pen
width used. Your local national standards body should have a standard
covering technical drawing, and the plotted dimensions of the pattern
should be defined in it.
With R14, there are two standard linetype files provided. ACAD.LIN
contains the definitions if you are using inches as the drawing unit,
while ACADISO.LIN contains the definitions if you are using
millimetres as the drawing unit.
--
Ian A. White, CPEng
WAI Engineering
Sydney 2000
Australia
Ph: +61 418 203 229
Fax: +61 2 9622 0450
Home Page: www.zipworld.net/~waiwhite
Mike Warner
Mike Warner.
Ian A. White wrote in message ...