gnomon | 一个为golang提供通用服务的工具库 -

I am trying to make a rotating zooming recursive golden triangle. It draws a golden triangle, then it draws another one inside it and so on. This was easy, but the challenge is making it zoom in and rotate around the point that the triangles are approaching.

To make it zoom in on that point infinitely I need to come up with the formula to calculate which point the triangles are approaching.

Running demo at this point: https://waltari10.github.io/recursive-golden-triangle/index.html

Repository: https://github.com/Waltari10/recursive-golden-triangle

I am using Angular based Storybook. All I wanted to do is to re-render the chart based on the values given in the Storybook's control. But the Chart remains static even after changing the value of the control. I tried so many workarounds, but still am at square one. The chart I wanted to display is a choropleth. I have used Chartjs and chartjs-chart-geo library to display the chart.

My component in Storybook :

Based on the stack trace, I can see that Altair only accepts the following projections -

Imagine a patch glued to a sphere. How would I manage to make the patch keep its center position and surface area as the sphere is scaled up or down? Normally, only the curvature of the patch should change, as it is « glued » to the sphere. Assume the patch is described as a set of ( latitude, longitude ) coordinates.

One possible solution would consist of converting the geographical coordinates of the patch into gnomonic coordinates (patch viewed perpendicularly directly from above), thereby making a 2D texture, which is then scaled up or down as the sphere changes its size. But I am unsure whether this is the right approach and how close of the desired effect this would be.

I am a newbie so perhaps Unity can do this simply with the right set options when applying a texture. In this case which input map projection should be used for the texture? Or maybe I should use a 3D surface and « nail » it somehow to the sphere.

Thank you!!

EDIT

I’m adding an illustration to show how the patch should be deformed as the sphere is scaled up or down. On a very small sphere, the patch would eventually wrap around. Whereas on a larger sphere, the patch would be almost flat. The deformation of the patch could be thought of as being similar to gluing the same sticker to spheres of different sizes.

The geometry of the patch could be any polygonal surface, and as previously mentioned must preserve its center position and surface area when the sphere is scaled up or down.