Expression Class Arguments - Revision history

Diemo at 09:12, 6 July 2010

2010-07-06T09:12:14Z

Diemo at 12:52, 2 July 2010

2010-07-02T12:52:29Z

Diemo: Category:FAQ

2010-07-02T12:46:35Z

Category:FAQ

Diemo: ans. from Adrian G

2010-07-02T12:41:13Z

ans. from Adrian G

New page

'''Q:''' How to pass an argument to a method involving an expression object?

'''A:''' Here is how to pass the variable to expr:

<code>
($1 apply (new expr '($x * $1)') $localvar)
</code>

or

<code>
[ $fvecref $localvar ]<br>
|<br>
[ ($1 apply (new expr '($x * $1)') $2) ]
</code>

You stick the arguments which you want to pass to expr after the expression itself in the message box.

'''Reference''' from fvec help patch:
<blockquote>
When it is evaluated by the apply method, the expression object can only
access arguments to apply as $1, $2..., the method-specific variables $x and
$self, and global variables. Local variables used in the expression definition
are undefined since a method can not access the context (patcher) in which it
is invoked. Therefore, you have to pass references to local variables as
arguments to apply, which will replace $1, $2, etc. in the expression
definition.
</blockquote>

← Older revision		Revision as of 12:52, 2 July 2010
Line 28:		Line 28:
	</blockquote>		</blockquote>

−	[[Category:FAQ]][[Category:expr]][[Category:ftm.mess]]	+	[[Category:FAQ]][[Category:expr Class]][[Category:ftm.mess]]

← Older revision		Revision as of 12:46, 2 July 2010
Line 27:		Line 27:
	definition.		definition.
	</blockquote>		</blockquote>
		+
		+	[[Category:FAQ]][[Category:expr]][[Category:ftm.mess]]

@@ Line 27: / Line 27: @@
 definition.
 </blockquote>
 [[Category:FAQ]][[Category:expr Class]][[Category:ftm.mess]]