Valve cannot break the process line

[qmlm1981]

Valve cannot break the process line whose thickness was modified.(AutoPLANT P&ID 8.6 )

In the "pid-sup.lsp" program,the default thickness of the major process line is 0.03 .After changing to more than 0.08, I place the valve on it ,the process line cannot be broken automatically.Why?How to fix it?

[dave]

I should ask first if your using AutoCAD or Microstation. I have only used AutoCAD with Benltey P&ID.

I tested the line thickness on my machine and got the same result. Though the line will break if another line crosses it and you apply a PID tools>line utilites>autobreak line. This leads me to believe it's a bug.

As an alternative to setting the line thickness in the pid-sup.lsp file, why not set the line thickness to "nil", set your layer color to 4 or (whatever you want) and set the plot style to plot the major layer color to whatever thickness you'd prefer. This way your P&ID would look less cluttered on the screen but plot exactly the way you want it.

Here is mine:

(list "major" 4 (At_GetLineType "CONTINUOUS") "_.LINE" nil ) ;10 Major process lines

Hope this helps

[qmlm1981]

My P&Id is based on AutoCAD2004.

What is the difference between "_.PLINE" and "_.LINE" ? What is the meaning of "nil" ?

[dave]

pline is a polyline. Its essentially a filled rectangle whereas _line is a regular line. The polyline is what gives it its thickness. If you change that value to _line, you wont see a thick line on your screen

[qmlm1981]

I modified the value of the color(such as from 2 to 4),but the color on the screen didn't change.Why?

[dave]

You need to change to another layer, and then purge the old layers before it will recognize changes. Also, you will see your new changes if you create a new drawing.

[dave]

Did this work?