[image] _meshsphere does not produce a 100% symmetrical object / set of points: _meshSphere Style=Quad Center = 0 Radius = 5 Frontview, Topview in wireframe the deviation is visible - see screenshot abave kind regards -tom

Hi @Tom_P , Rhino’s quad mesh sphere is a normalized cube - a uniformly subdivided cube where each vertex position is normalized and multiplied by the sphere radius. This creates a non uniformly subdivided sphere where the triangles closer to the center of a cube face are bigger than the ones closer…

Dear @dale Thanks for explaining the underlaying algorithm. sorry if I did not explain the problem well - it s not about Size of triangles / quads, but about vertex-position. This is “meshSphere Quad-Style” detail in Front View. I would expect that the 2 vertices (red) have the same World-x, Wor…

Got that, thanks. RH-76881 MeshSphere > Quad version is not symmetrical -Pascal

thanks for the fast fix. Why not V7 ? see also this discussion

Because we’re nearly done releasing Rhino 7 service releases and are only making critical fixes to that code base now.

Bug - meshsphere not symmetric

Rhino

brian (Brian Gillespie) September 8, 2023, 6:47pm 5

RH-76881 is fixed in the latest WIP

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Bug - meshsphere not symmetric

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