Reversing opposite vectors in a list?

Replies to This Discussion

Permalink Reply by Laurent DELRIEU on March 29, 2016 at 1:53pm

Multiply one vector by the dot product or best do that on expression

if x is dot product and y on of your vector

if(x<0,-y,y)

Permalink Reply by John Cyrillos on March 30, 2016 at 3:17am

I'm not  sure I understand how this would work. I am using Cross Reference to get the combinations of the vectors. For example, if the vectors are 90 the results of the dot product are 4005. The expression you suggest gives 40050 results. What I'm trying to do is get 90 vectors in the results.

Permalink Reply by Riccardo Majewski on March 30, 2016 at 5:46am

If the dot product is negative or -1, you could convert that number to a boolean.

If dp>0 = 1 else -1

Then with set amplitude of the vector you can set that lengh, reversing it when is -1.

Post your .gh file for better answer.

Permalink Reply by John Cyrillos on March 30, 2016 at 5:59am

This is the .gh file.

Attachments:

• vectors.gh, 7 KB

Permalink Reply by Riccardo Majewski on March 30, 2016 at 6:50am

Have a look at attached file.

Maybe it helps.

Attachments:

• vectors.gh, 14 KB