Reverse option within the functions doesn't seems to work

Replies to This Discussion

Permalink Reply by Danny Boyes on November 14, 2011 at 10:24am

Hi Tamir,

 

Can you add a screen shot of the problem, as there's very little to go on here.

 

Permalink Reply by taz on November 14, 2011 at 5:04pm

It could be a glitch if Tamir is talking about vectors...

 

I noticed the "Reverse" toggle doesn't give the proper [Reverse Vector] result one might expect.

 

Kick this to David?

Permalink Reply by Brian Harms on November 14, 2011 at 5:44pm

I think that's because the reverse toggle only reverses the order in which the data enters the component. Since you only have one vector, the reverse toggle wouldn't change anything. If you had multiple vectors it would reverse their order, but not their directions.

 

The vector reverse component essentially multiplies each component of the vector (x, y, and z) by -1 to give you the new reversed vector.

 

I think you'll have to stick with the vector reverse component.

 

hope that helps

Maybe this answers both questions?

-Brian

Permalink Reply by taz on November 14, 2011 at 7:22pm

Ah yes!

 

You're completely right.  I had figured out exactly what you mention, the "Reverse" toggle only reverses the list order, but then I promptly forgot.

 

A blunder on my part...

 

HOWEVER trying to apply "-V" or "-1 * V" as an outgoing expression doesn't work.

 

A different bug?  Or am I just daft today?

Permalink Reply by Brian Harms on November 14, 2011 at 8:48pm

Actually I've had that problem too with expressions applied to the outputs of components. I ran into it once - I figured it was still being worked out so I stick with either placing a function component or applying an expression to the next input.

Permalink Reply by Danny Boyes on November 15, 2011 at 2:54am

My hunch is that there is a tree structure with only one item per branch and therefore the list is not being reversed because there is no list to speak of. I could be wrong which is why a screen shot might shed more light on the situation.

Permalink Reply by Tamir Lavie on November 15, 2011 at 3:35am

Had this problem with list of data - i guess it works within a branch 

so i had to Flatten | Reverse | Graft it back , so i get my result - a bit messy but it works...