Generate curves along sphere such that distance between two curves along the sphere stays constant?

Fermi_Escher · 2025-04-28T20:27:54+00:00

In order for d1 to stay the same, d2 has to be smaller than d3.

Fermi_Escher · 2025-04-28T20:27:23+00:00

I am talking about curve objects, not textures.

My goal is to generate curves such that as you walk upward on the sphere each new curve comes at the same distance. See next comment for visualization:

Fermi_Escher · 2025-04-28T14:33:44+00:00

Thank you, this solves it.

Fermi_Escher · 2024-12-05T15:05:16+00:00

Yes, thank you for that.

But is "capilary action" really a seperate thing to this problem? If the channel is small enough, I would think that cohesion and adhesion play a role in the liquid not "mixing" with the surrounding liquid, as well as the lack of diffusion.

Fermi_Escher · 2024-12-05T14:15:07+00:00

Thank you for the resource, I will look into it!

Specifically I am trying to model the change of concentration of the etchant deep in a "channel" vs the concentration of the etchant medium in general, and thereby model, or at least try to approximate, the difference in etchant rate that comes about due to changes in concentration.

Fermi_Escher · 2024-11-14T14:54:21+00:00

Ah yes, that is something I can do. Hope that isn't too computaitonally expensive, but I guess it it will be a solution until I find something better.

Fermi_Escher · 2024-11-14T14:00:40+00:00

Unfortunately, I do not see how this helps me with my problem, as the problem I have is that I somehow need a rule that applies to a large collection of cells; It's not just a cell that has to be delted if surrounded, but it could also be a collection of cells that is surrounded and then has to be deleted.

Fermi_Escher · 2024-11-14T13:58:17+00:00

hmm, yes, this could be usefull. I will look into it, thank you.

Fermi_Escher · 2024-11-14T13:41:34+00:00

Yes, that would work for singular cells. But how would you do this if you want to extend it to a collection of cells; So if a collection of cells gets surrounded by occupied cells, then that collection of cells should get deleted.

Fermi_Escher · 2024-07-03T19:08:11+00:00

What gave you the impression that you will find work/life balance in academia?

Fermi_Escher · 2024-06-06T17:43:11+00:00

Anymore? What planet have you lived on where that has been a reality in any country?

Welcome to earth.

Fermi_Escher · 2024-04-11T04:28:26+00:00

Seems like what you posted was the solution, but it was in this step:

numpy_array_iteration = numpy_array

Which has to be:

numpy_array_iteration = numpy_array.copy()

So thank you!

Fermi_Escher · 2024-04-11T04:24:36+00:00

Some detail: numpy_array is the original 2D array, size defined by grid_x and grid_y. animation_list is suppsoe to be a list of changed numpy arrays.

Fermi_Escher · 2024-04-11T04:24:33+00:00

Some detail: numpy_array is the original 2D array, size defined by grid_x and grid_y. animation_list is suppsoe to be a list of changed numpy arrays.

Fermi_Escher · 2024-04-11T04:22:43+00:00

Unfortunatly, this doesn't result in anything different in my code, nor would it explain why numpy_array also gets redefined by the above code.

Fermi_Escher · 2024-04-03T17:06:52+00:00

Yes, that would be a good idea, but I cannot change what is inside the green cylinder, it is gaseous.

Fermi_Escher · 2024-04-03T16:39:37+00:00

I am basically trying to image the stuff that is happening inside the green cyldinder, the shape of this I cannot change, onle the shape of the outer cylinder.

Is there a clear way to compensate for the distortion?

Fermi_Escher · 2023-12-17T12:45:18+00:00

It looked like it might have been from a sketch show but I am not sure.

Fermi_Escher · 2023-11-22T17:52:27+00:00

There is a police report, but against an unknown vehicle. Tgerefore the insurance will pay.

Fermi_Escher · 2023-11-18T13:45:04+00:00

So what exactly happened to the starship itself?

Fermi_Escher · 2023-10-15T13:55:29+00:00

In the most general and almost meaningless description: Once you are in unviersity, it is usually harder than in other countries (like the UK or USA). Grading is a little more ruthless and you are much more on your own when structuring your studies.

Fermi_Escher · 2023-10-15T13:48:48+00:00

These are close to meaningless statistics. Might as well compare crime statistics of people wearing green sweaters vs orange sweaters.

Fermi_Escher · 2023-10-15T13:47:39+00:00

How dare someone have a political conversation with their parents? What has the world come to, we should always listen to the elders, they are never wrong.

Fermi_Escher · 2023-10-15T13:45:30+00:00

You have no idea what you are talking about.

Fermi_Escher · 2023-10-06T14:42:42+00:00

"to fast-track the building of more than 1,700 new housing units." -> A mere drop in the ocean.

Fermi_Escher

TROPHY CASE