thanks Michael, I will try the construct>loft technique.
and the obj wireframe converter is cool too, didn't know about that. I always used the subD import function with really narrow edge bevels to have a construction guide...

w

Hi Wim,
this may help.
https://www.youtube.com/watch?v=VwcpqJQX970
Cheers
Barry

The HexFlatGrid2Demo.nod is a node PROGRAM that creates a HexGrid, (Dec, 2020). (Based upon James HexGrid) I keep it in AppData>nodeeditor>Program directory. (It Loads)
It utilizes the HexGrid2Macro.nod, which is a MACRO. (I keep it in AppData>nodeeditor>Macro directory. When it is in the Macro directory, it is available from nodeeditor canvas
by Right Click.

- Brian

Maybe Project half sphere to plane?

Need to do experimentation...

It is like an optical illusion of a sphere...

- Brian

Mhhh that one was fun to resolve, I guess I get it (not 100% sure tho :O)) ... just in case you have access to Houdini (19.5).
There is a .3dm to test (exported in .igs from Hou)

Beside I morph from hex to circle in a linear way, could be controlled too ... let me know (.hip is attached too)

I see each circle as a Hexagon, or in a hexagon.

I see the center point of the grill as having 3 equal circles around it.

I still believe a sphere should be involved.

- Brian

I'm not sure if I understand you, but wouldn't that be better ? Instead of a constant offsetting between hex to circle morphing I mix it with a cosine. (the "spherical" missing feature ?).

Here's the resulting pattern + source .hip
There is an extra ramp to control the 'speed' of the morphing between the hex and the circle ... time to clean the mess tho, I was aiming to the result first.

Two attempts to flow a hex grid to a hemi-sphere did not produce the desired patterns.
One attempt was with "square" iso-lines.
The other attempt was with "radial" isolines. (A disk and revolved quarter circle.)

- Brian

Tried this in modo with a flattened tessellated hemisphere and radial falloff.

But that's pentagons :S (I like the approach tho !)

Auck! you're right! Got into it, and completely missed the point.:(

So I am thinking of a Stereographic projection of 2D hex grid with centerpoint in each hexagon, and perhaps a gradient of circle sizes in each hex, to a half sphere.
Stereographic projection maps 2D circles onto sphere, as circles.

Then squash the half sphere by projecting it straight downward. This will turn the circles on the half sphere, into "ellipses" on the 2D plane.

- Brian

Tried another attempt at this using Steve Hills Harry Kit - Array Create Op. and concentric circles, not as tight packing as with Hexes.

RadialPattern script


https://moiscript.weebly.com/uploads/3/9/3/8/3938813/radialpattern.v.1.3.2015.12.13.zip

Cool! Thanks!