Formula node question

[Tudor]

Observer Pattern GOOP.zip I am trying to use formula node to solve a problem, i have to show a message on screen if a number is higher than aother

something like this :

int32 c;

if (a>40) {

c= "the value of a is ", a , "and is higher than 40" ;

}

is it possible?

thanks in advance

(i've attached a photo)

[jgcode]

QUOTE (Tudor @ Jun 2 2008, 04:22 PM)

Observer Pattern GOOP.zip I am trying to use formula node to solve a problem, i have to show a message on screen if a number is higher than aother

something like this :

int32 c;

if (a>40) {

c= "the value of a is ", a , "and is higher than 40" ;

}

is it possible?

thanks in advance

(i've attached a photo)

Alternative solution?

http://lavag.org/old_files/monthly_06_2008/post-10325-1212398470.png' target="_blank">

[Tudor]

Yes, thank you, I am aware of this solution, but I was trying to make it with formula node, but I guess there is no character variable, only integer

[lraynal]

Perhaps if you add a substraction in your formula node like: y = a-40, then you watch the result of "y" outside the formula node with the solution of jgcode !

You can get what you want easily...

[Yair]

If you really want to do this using the formula node, you can try declaring the output as a U8 array and using that as the string. To easily convert the string, you can use the String to Byte Array primitive and either use that as an input or as a constant inside the formula node. You can then use Byte Array to String on the output to convert it.

Of course, I don't think the formula node is able to do something like printf anyway, so you will be doing a considerable part of the code outside the formula node.