Topic: Field to Attrib with lisp?

[Amsterdammed]

Hello everybody,

I never did anything with fields, so this is new to me.

I have a drawing with several layouts. in all layouts there are title blocks. i managed to link the name and date  contained in a xref block to an attribute in the title. works great, but can do this with lisp for all the title blocks in existing dwgs, so i can't just copy the title block trough all the layouts, i would loose the other attribs information.

Question is, can i set the attrib's value with a field (containing a the info of a lisp variable)  by lisp?

Thanks,

Bernd

[Lee Mac]

Question is, can i set the attrib's value with a field (containing a the info of a lisp variable)  by lisp?

Yes. 

[Amsterdammed]

Lee

well, that is good news 

leads me to the next question, how???

[irneb]

• Create a field manually through the normal Field dialog box.
• Then copy the text displayed in the bottom "Field expression" to clipboard (Select by draaging the mouse & Ctrl+C).
• Exit the field dialog & exit editing the text/attribute.
• Type (getstring t) at the command-line.
• Paste the expression (Ctrl+V) and press Enter.
• Select the result (notice all double-quotes & back-slashes are escaped, so it can now be used directly as a lisp string) & copy to clipboard again (Ctrl+C).
• Go to your lisp editor and paste the escaped expression in there - in a position where you assign it to the Text/Attribute's contents (e.g. entmod / vla-put-TextString).
• You might have to run the UpdateField or Regen command to have the field display properly.

[irneb]

If you want to calculate a field-expression which points to some property of another object, you'll need to find the other object's ObjectID number and then replace into the new expression. E.g. see this thread: http://www.theswamp.org/index.php?topic=38092.15

[Amsterdammed]

Perfect!!!

Thanks!