angle problems

I have a problem :

i just want to collect those angles from curves,

but seems something wrong

the angle shows different base on how i select curves

if i select all of them one time and it shows

if i select one by one and it shows

and also, select different amount of curves shows different angles[same curve]
but the most important thing is all of them are wrong angles,

if i draw some 90 degree curve, the answer is right.

thank guys

Attachments:

t1.gh, 4 KB

Replies to This Discussion

Permalink Reply by David Rutten on September 27, 2017 at 3:29am

Hi Akims,

we'll need the 3dm file with the curves as well. Although I tested with my own polylines. Do note that for the angle to be measured correctly, the first of the two segments needs to be flipped. Otherwise you're measuring the angle between the tangents before and after the kink:

Attachments:

t1.gh, 13 KB

Permalink Reply by David Rutten on September 27, 2017 at 3:32am

ps. You can also put the expression '-x' in the [A] input parameter of the vector angle component. That too will flip the direction.

Permalink Reply by Akims H on September 27, 2017 at 3:47am

Hi David

thank for your solution, it is work on the degree of angle.

but "the different degree of angle " still, here is my 3d file

thank you again

Attachments:

t22.3dm, 103 KB

Permalink Reply by David Rutten on September 27, 2017 at 4:28am

Oh I finally understand! When you window select the curves they will probably be in a different order than if you select them one-by-one. So the order of angles will be different because the order of curves is different.

There's no way for Rhino to know what order you want them in if you select them all at once. So you'll either have to do it one at a time, or add some sorting logic to your gh file so that curves are always ordered the way you need them to be.

Permalink Reply by Akims H on September 27, 2017 at 9:20pm

Hi David

Sorry about my pool English, BUT still really thank you so much!

ok, i got the point of this problem, i think i just select one-by-one.

thanks!

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