James...your contributions are always...AMAZING!!!

Congrats!!!

Delaunay Node

Node has a input for points and generates an output of connection lines as a Delaunay Triangulation.


James
https://www.instagram.com/nodeology/

It's the grouping for these nodes that give a simulation of a Delaunay function
or the Delaunay node is a new function node itself ?

Pilou,

>> It's the grouping for these nodes that give a simulation of a Delaunay function
or the Delaunay node is a new function node itself ? <<

The proposed new node is the one titled "Delaunay" in my earlier post.
The other nodes only show how the point input may be generated.

As I understand it, the Delaunay triangulation is a precursor to generation of voronoi
diagram and hence should be solvable. However unlike the voronoi points that are
restrained to 2D plane, Delaunay triangulation would ideally operate on points in 3d space.
Hopefully this would not make the task much more onerous.

James
https://www.instagram.com/nodeology/

so who is coding nodes (except Max, r2d3, Karsten...

Because I am really stuck on my repository for understand "this node made what ?" ! :)
I make an s o s ! :)

80% are done but the 20 % missing is total fog! :)

So help ! ... _ _ _ ... :)

Spiral Node

This would be fairly low down in the order, given until Michael post of today,
I had not even thought about the need for a spiral node. Defining a spiral with
a set of points with locations determined by a bit of trigonometry is not difficult,
it would nevertheless be worth having a dedicated node since being an existing
UI function should be relatively straightforward to transpose the code into a node.




James
https://www.instagram.com/nodeology/

I suppose existing spiral scripts could be converted into nodes.
- Brian

James,

For testing purposes:

Insert the Spiral.txt code on Curves2.js after the Helix Node.

This will add a Spiral Node to the Curves2 listing.

Added a spiraltest.nod for testing.

Waiting to see some nodeology art with this new node...

Wayne

Nobody for my SOS ? Encalaminated in the Sargasso Sea! :)

You will can see easily what are the "holes" !

http://moiscript.weebly.com/biblio-elephant.html

Wayne,

Thank you so much for your spiral node contribution.
It works perfectly....& multi-processing too!
Great Work.

>> Waiting to see some nodeology art with this new node... <<

I have uploaded a new pattern transition Animation to instagram
utilising your new node: https://www.instagram.com/p/B5QySEDJTIl/

Thanks again,
James
https://www.instagram.com/nodeology/


UPDATED:

PS If I could be so bold as to suggest an improvement, it would be
to remove the "Reverse" checkbox and instead allow negative "Turns" inputs,
with line of code asking something like:
"if turns < 0, then reverse = true, else reverse =false:
turns = abs(turns);"

In this way transitions can go from spiralling in one direction to the other.

A problem that arises with a number of nodes when dialling from a negative number to a positive number (or vice versa) is that a zero input will not be accepted and so an extra line of code would be useful:
"if turns == 0, then turns = 0.001;"

Unfortunately I'm not a coder, so obviously I am not stating that these are 2 lines of javascript, but rather, only their intent.

James,

The nodeology art looks great! The reverse direction should be a easy change.
The division by zero goes off into infinity. It also will be addressed.

Thank you for testing.

Wayne

James,

Updated the Spiral Node for reverse direction (0 or 1). Could you provide more information on the error you are getting with the negative values?

Are you able to enter the same information on the MOI UI for the flat helix without error? This node is using the MOI API for the helix / flat spiral.

Wayne

Wayne,

>> Could you provide more information on the error you are getting with the negative values? <<

I'm not getting an error message, however the spiral disappears for any "Turns" value less than 0.01 or negative. This is logical for the MoI3d UI but less so for NE particularly with multiprocessing applications.

Have a look at the attached .nod file. It might better explain my meaning from earlier suggestion of improvement to spiral node. Firstly, dial through the GREEN knob from min-max.

In the upper example the spiral disappears when the knob for "Turns" input is dialled below 0.01, whereas the lower example works throughout the range from -5to5 with the addition of a rather clumsy workaround.

It is perhaps not that straightforward, but if you look at the math & compare nodes on the lower example. I was suggesting incorporating analogous code into the Spiral node and removing any reference to "Reverse" from the info panel or the node itself for that matter. Which is to say, that the negative or positive property of the "turns" value, alone, would designate the direction of twist.

Thank you for all your your effort
James
https://www.instagram.com/nodeology/

Hello Pilou,

an example of bundleArray - here for points. It takes points from the input and bundle it to packages in the output array. Here the first point of each input and so on.
Works also for numbers and objects.

Have a nice day
and thanks for your work on it!

Karsten

Thanks...i will see that as soon as possible! :)

James,

Great example of the issue. A solution is being worked on.

Thanks,


Wayne

James,

Updated the Spiral Node. Turn values minus reverses direction. Turn zero values default at .01 for a ... straight arc. ???

Wayne

Brilliant stuff, Wayne
Works perfectly!

I have updated "Current NODE EDITOR folder" thread accordingly:
http://moi3d.com/forum/index.php?webtag=MOI&msg=9358.1

James
https://www.instagram.com/nodeology/

James,

Thank you!

Wayne

Wayne,

If you enjoyed contributing the "Spiral" node and are scouting out a new task to sink your teeth into, please have a look at the attached files.

They are the scripting for "SubdivClassic" script, which performs CatmullClark or Planar subdivision of planar polysurfaces. If you are not familiar with the script, here is the original thread posting:
http://moi3d.com/forum/index.php?webtag=MOI&msg=6674.164
(Note that the attached files are more uptodate than those in the thread post)

This functionality would be a supremely useful addition to NE toolbox because the faceting of surfaces provides the underpinnings of a panelling system. That is to say, that each subdivided facet (particularly if constrained to quads) services as a target surface for populating with a unit panel with use of "Flow" node.

No doubt the transposing of a standard UI element such as Spiral tool into a node, is more straightforward, but let me know if this is something you could do.
I would be greatly appreciative of anything that extends the functionality of NE. I feel that my efforts to promote MoI as a viable parametric solution on instagram may be undermined by my starting to repeat myself.

James
https://www.instagram.com/nodeology/