list of numbers to uv points

i have a 2 lists of numbers as follows. i would like to combine them to select uv points from surface points, and interpolate them.

i have managed to do that for 1 curve, im struggling to repeat it though.
the sequence is (0,0) (4,1) (7,4) (11,7) (14,8) that goes on as (1,0) (5,1) (8,4) (12,7) (15,8) and (2,0) (5,1) .... etc

http://www.grasshopper3d.com/forum/topics/sequencing-a-spiral?comme... is the original post where a graph mapper was suggested but i cant get close to the curve that i plotted.

http://www.grasshopper3d.com/forum/topics/shift-data-points-with-br...

this post discusses something really similar but i cant get it to work for me. can anyone please tell me where im going wrong? its frustrating to be almost there :P

i have removed everything else except that which works and have attatched it, and would really appreciate some guidance.

Attachments:

list to branch.png, 45 KB
pointsort.gh, 12 KB

Replies to This Discussion

Permalink Reply by nikos tzar on January 20, 2015 at 11:12am

Hi aditya,

Can you please explain again the path sequences that you want?

and especially:

at the 3rd sequence you typed: (2,0) (5,1)...

shouldn't that be: (2,0) (6,1)...? since (5,1) is already used in the previous sequence?

Also, which is the final sequence and does it depend on the number of V segments? (does this number change or is it always 48 segments, thus 49 points?

If so is the last one: (34,0) (38,1) (41,4) (45,7) (48,8) ?

Permalink Reply by aditya.d.bhatt on January 20, 2015 at 12:08pm

yes you are right. that would be the case.

Permalink Reply by nikos tzar on January 20, 2015 at 11:45am

Ok, I gave it a try with what I understood from your description:

hope this is what you wanted...

Attachments:

pointsort-nt.gh, 16 KB

Permalink Reply by aditya.d.bhatt on January 20, 2015 at 12:09pm

i tried this. what do you think?

Attachments:

pointsort.gh, 23 KB

Permalink Reply by aditya.d.bhatt on January 20, 2015 at 12:13pm

thank you nikos! im just comparing our two methods. it seems yours is SO much more elegant. and maybe even adaptable if i want to change the flow of the curve. mine is still quite primitive.

Permalink Reply by aditya.d.bhatt on January 20, 2015 at 12:20pm

Daniel González Abalde suggested this a couple of days back. how does a graph mapper not give me smoother curves? i hope you will entertain these inquiries. although my immediate purpose may be solved, im not very intrigued about the working of these things, it was so much fun to figure this out :D

Attachments:

pointbygraph.gh, 12 KB

Permalink Reply by nikos tzar on January 20, 2015 at 1:10pm

Well, between mine and yours there are very few differences. You actually created the lists of needed integers with fewer components, which is better! And I believe they are equally adaptable to different surfaces (unless I am missing something).

Daniel's definition, on the other hand, has the advantage of easily creating different curves on the surface. The smooth curves you ask about are mainly a matter of using [NURBS] instead of [interpolate curve] and settings of the graph mapper and the multiplier slider. If you use [Interpolate Curve] and play around with these settings, you can get section curves very similar to the ones you get with our definitions:

Attachments:

pointbygraph-compare.gh, 28 KB

Permalink Reply by aditya.d.bhatt on January 26, 2015 at 3:08am

hey nikos. this is what my definition has evolved into; and its starting to get interesting. do have a look if you have the time its large and messy but it works mostly.
There is a few problems and im attatching the a concise version of just the problem part anyway.

im repeating the effect on the inside and outside of the handrail. the problem im facing is towards the end of the list, the lines start misbehaving. i cant understand why.

Attachments:

Permalink Reply by Danny Boyes on January 26, 2015 at 4:09am

There is not the same number of points in the final sequence to conform to your Partition pattern. Similar to the beginning of your balustrade there isn't any curves in the top left corner of the surface, there should be none in the bottom right Or you should continue your surface past the end and then trim the curves back.

Here is a Shift List method that allows you to Short List the Branches to create the correct amount of curves (In Green)

Permalink Reply by aditya.d.bhatt on January 26, 2015 at 4:36am

in that case i should be able to prune by branch length? it seems to work for now. im going to recreate your method and see how it works. this is getting more and more fun! :D thanks danny!

Permalink Reply by aditya.d.bhatt on March 18, 2015 at 5:45am

hi nikos! what did you think of the messy stair definition i shared in jan? it has grown even more in complexity. a new question now arises : what if i want the curves to start changing in a gradual manner like a tween shown below? im stuck probably because of mynumbering method?

Attachments:

new inner balustrade.gh, 18 KB

Permalink Reply by nikos tzar on March 18, 2015 at 6:18am

Hello aditya,

I am afraid I can't understand your definition since there is an error at the beginning:

I don't get the purpose of the [removeDuplicateLines] component. And also why you are using it on the V isocurves which are curves and not lines (that's the error).

If you can explain this part to me I could get rid of the error and proceed to the rest of the definition.