Expression value of Offset Curve Direction ?

Hello everyone,

I have a problem with the command expression of offset curve.

In the attachment there are green original circles that will provide an offset curves.

I want to offset on the both sides so I created 2 separate offset curve command. Then I changed the expression value on the lower offset box as -D to make the reverse direction. But it doesnt offset on the both side it just creates overlapped offset circles instead of the inner to the circle center direction..

I was watching on the tutorial but in the video there was no problem when you include -D in the expression value box. So are there any mistakes that i make or should i use a different way maybe the video was made in old version so there could be a newer way to do that..

Thanks for your help !!

Attachments:

troubleshoot_expressionoffset.jpg, 550 KB

Replies to This Discussion

Permalink Reply by Pieter Segeren on October 27, 2014 at 5:21pm

use -x instead of -D Bora.

Permalink Reply by Bora Doker on October 28, 2014 at 5:26am

yes it works thank you very much but why it didnt work with -D as in the video that i saw.

Is it if the command line changed or a bug ?

Permalink Reply by Pieter Segeren on October 28, 2014 at 5:53am

Probably it's a bit older tutorial. That behaviour changed about a year ago, now all expressions use 'x' as a variable instead of the parameter ...

Permalink Reply by Valentin on October 28, 2014 at 7:51am

Your way!

Attachments:

offset.gh, 8 KB

Permalink Reply by Bora Doker on October 30, 2014 at 7:21am

Btw what if i want to make these circles as a tube extrusion but different variety of heights, individually.

I mean maybe i can put some "BOUNDS" as a limit to the heights and these tubes can be arranged as higher from the outer tube to the inner tube.

Or maybe i can put a graph for making these tubes as they gain the random heights. Like a drop effect on the water (wavy)

Which command should i use for this concept. I was playing with extrusion z direction vector with putting "REMAP" and "RANGE" command but it tries to replicate all of it as sequences to the z direction which I don't want it.

This will be tricky but hope you would figure it out a way to do this.. I attached my file and you can look what i'm trying to do.. :)

Attachments: