topic Linetype Scaling in AutoCAD Forum

Linetype Scaling

Anonymous — Fri, 12 May 2017 06:57:56 GMT

HELP!

I'm working on an assignment for school and have all my linetypes set accordingly, yet when I used a dashed line it does not show up.

When I select the line and list it to get the info. it says: linetype scaling 2'-0".

I have no idea how it has been set to 2' or how to change it. I've tried resetting my LTS, PSLTS, MSLTS, everything. My LTS is set to 24.000 as instructed and displays hidden lines I drew prior to the linetype scaling being changed.

please help!

Re: Linetype Scaling

swieciakpawel — Fri, 12 May 2017 07:34:16 GMT

Hello and Welcome to Autodesk Forums,

While I don't know what Your assignment exactly states, I might be able to tell You something about linetype scales, that might help just a little.

Using Properties window (Command - PR) , you'll be able to modify single line parameter, that will affect only that particular line:

Using Command LTS, You're modifying the Global scale factor - that means it will affect all lines, even those that have the linetype scale already modified. I'm attaching a simple comparision drawing, so that You can see how the linetype scale works.

In First case I have standard value of LTS = 1.0 and for each line i have changed linetype scale to presented values.

In second case I have modified value of LTS to 0.1 and those are exactly same lines after modification.

Reason You might not be able to see dashed lines is probably the scale itself. If You have a linetype scale that doesn't match Your drawing dimensions, lines might be either too big or to small to be visible.

Kind Regards,
Pawel

Re: Linetype Scaling

kadmonkee — Fri, 12 May 2017 11:43:37 GMT

are you using model space and paper space for this exercise?

if so model space ltscale= 24 in model space which translates into 1/4"=1'-0"

in paper space set your psltscale to (0= OFF 1= ON) you viewport will use a scale of 1/4"=1'-0"

can you see the linetype correctly in Paper space viewport?

look at the images and you can see the combinations I used to get the different results

this example i did not change any individual line type scale the linetype is by default 1

Re: Linetype Scaling

SeeMSixty7 — Fri, 12 May 2017 13:19:47 GMT

You can also change an entities Linetype Scale using the CHANGE command.

CHANGE

Select entities Press enter when done selecting objects

P for Properties

S for ltScale

provide new scale factor 1.0 in this case

Enter to complete command.

Good luck.

Re: Linetype Scaling

dgorsman — Fri, 12 May 2017 14:25:41 GMT

As you can see from the various replies, there are all sorts of scaling factors that can conspire to help or hinder your work. That's why I advocate for the Rule Of One:

Global LTSCALE (system variable setting) of 1
Object LT scale of 1
MSLTSCALE (system variable setting) of 1
PSLTSCALE (system variable setting) of 1
Global scaling factor (including in any annotation scaling) of 1

That, together with the appropriate LIN file (ACAD.LIN for imperial/inch drawings, ACADISO.LIN for metric/millimeter drawings) gets everything looking "nice" and is very easy to remember. No need for a scale of ____ here, ___ there, but then we need ___ for that, except the second project of the month...

Using a global LTSCALE of 24 is a bit odd. It *might* be from attempting to use the ACADISO.LIN file with an inch-sized drawing.

Re: Linetype Scaling

SeeMSixty7 — Fri, 12 May 2017 14:39:02 GMT

You are so right. Autodesk has added a bevy of options for linetype scaling. Problem with extreme flexibility is that it can introduce complexity and a multitude of options for places to go wrong. I recently wrote a blog specifically about Linetypes and LTSCALE.

http://www.seemsixty7.com/blog/2017/04/12/cad-intermediate-linetypes-and-ltscale/

Hopefully this helps clarify, educate or garner interest in learning more.