Boolean switch ?

Replies to This Discussion

Permalink Reply by Chris Tietjen on April 3, 2011 at 10:29am

Chris

Permalink Reply by Olivier Suire on April 3, 2011 at 10:54am

Hi Chris,

 

This is not what I mean.

I'm interested in what happens AFTER a "True" or "False" boolean has been evaluated.

To take your example, if x=1 (true), then I want to do a bunch of stuff, else I want to do a DIFFERENT bunch of stuff.

 

See ?

 

--

Olivier

Permalink Reply by Andrew Heumann on April 3, 2011 at 11:51am

One way is to use the Dispatch component with a single boolean value to activate different process streams. See the attached file for an example.

Attachments:

• boolean_switching_streams.ghx, 204 KB

Permalink Reply by Olivier Suire on April 3, 2011 at 1:20pm

Exactly what I needed !

Thanks Andrew !

 

--

Olivier

Permalink Reply by Danny Boyes on April 3, 2011 at 2:08pm

another method is the stream filter gate on the sets section > tree tab. supply a 0 and only the input 0 goes through supply a 1 and only stream 1. there is alsp an input manager so you can add any number of inputs 0,1,2,3,....N

Permalink Reply by Olivier Suire on April 3, 2011 at 2:19pm

Thanks guys,

 

But what if I just want to trigger events without passing data to them.

Example : If n>10 then "draw a square", else "Draw a circle". With the "n" value having no influence whatsoever on the size or location of the said circle and square ?

 

I just need to trigger something ; not necessarily pass along some data...

 

Cheers,

 

--

Olivier

 

Permalink Reply by Danny Boyes on April 3, 2011 at 3:20pm

Hi Oliver,

This illustrates your example. When 'timeline' gets above 10 there will be a square instead of the circle.

In this case the 'data' to pass along is the geometry, and it doesn't actually have to go anywhere the filter is a preview enabled component.

Permalink Reply by Pieter Segeren on April 3, 2011 at 3:26pm

Hi Danny, can I ask what expression you used in the domain, because I used my UserObject...

Permalink Reply by Danny Boyes on April 3, 2011 at 3:32pm

That was just -A so the domain is -10 to 10. Normally I have a domain component with expressions of -A/2 and B/2 so that I get the rectangle centred on the plane.

Permalink Reply by Danny Boyes on April 3, 2011 at 3:30pm

Of course the flip side to that is the Stream Gate, but this is passing the data onto another process.

Which process is up to you

Permalink Reply by Pieter Segeren on April 3, 2011 at 3:39pm

Ah! Great, thanks! Another UserObject superfluous:)
(how come there's no reply button under your answer?~)

Permalink Reply by Danny Boyes on April 3, 2011 at 3:47pm

It's reached its limit in thread level, just like there's no reply for you now.

 

PS you can save the standard component with the expressions as a user component if you are going to regularly use it. 

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