Trim inside circle

[goonkt]

i Am attempting to make a lisp that well help create a generic label.

 

 

The issue im running in to is how to trim the inside of the circle without selection.

the label is a circle with a line coming out at a 45 angle out of circle the lisp starts the line form the center but i would like to trim inside circle.

[Tharwat]

Check this out ....

 

http://www.cadtutor.net/forum/showthread.php?68144-how-trim-many-line-inside-multi-circle-on-one-step&p=467090&viewfull=1#post467090

[MSasu]

I think you need to clarify your issue - (1) you want to trim an existing line with the circle added by your routine or (2) both the line and the circle are added by the said routine?

[goonkt]

want to keep the circle and trim a line added by the routine

[MSasu]

Then why don't just draw the line at the required length? Please check the POLAR function.

[fuccaro]

As Mircea says, just with some more details;

Don't start the line from the center of the circle just to trim it later. Draw it right from first. If the circle center is C and the radius is R, your start point could be (Polar C Ang R)

Ang is the desired angle.

Also you can replace R with something like (+ R 2) to leave a small gap between the line and the circle.

 

Years ago I used to use a dynamic block that I inserted in the drawing having the number an attribute. A short Lisp changed the attributes automaticaly to be in secvential order.

[Dadgad]

Have you considered creating a new custom MULTILINE style?

As shown in the image there are a great many varied options, including using a user supplied arrow style. MTEXT can be added, all kinds of choices.