[Bf-committers] Cursor to center of mass

[patrick boelens]

I can sort of see the reasoning behind that, but I would also argue accuracy can be very important. Maybe it'd be worth it to make a "high quality" operator bool in the same vein as the "high quality normals" in the Solidify modifier?

-Patrick

> Date: Wed, 21 Nov 2012 17:36:19 +0001
> From: sergej.reich at googlemail.com
> To: bf-committers at blender.org
> CC: bf-committers at blender.org
> Subject: Re: [Bf-committers] Cursor to center of mass
> 
> Hey Jason,
> 
> currently there is a problem with n-gons when chalculating the center of mass.
> The issue is that we don't have a good way of calculating centroids for n-gons and just use the vertex average, so the calculated origin will drift a little when your polygons have many vertices.
> I'd prefer to just tirangulate the model and use the triangle centroids but after a discussion with Campbell we decided it's not worth allocating a bunch of faces just to get a litte more accuracy.
> 
> Regards, Sergej.
> 
> Am Di, 20. Nov, 2012 um 12:12 ,Jason Wilkins <jason.a.wilkins at gmail.com> schrieb:
> Brecht, I figured that was what it did after testing it some, but 
> since subdividing a face caused the center to move slightly I had my 
> doubts. If it was vertexes I expected a really large move (since 
> there were 100 times as many vertexes in my subdivided face than the 
> rest of the model), but using faces or tets it should not move at all. 
> Did I find a bug? 
> 
> On Mon, Nov 19, 2012 at 5:05 PM, "Martin Bürbaum" 
> wrote: 
> > Just FYI - I did something similar ("Snap Cursor to Centroid") as a script a while back. 
> > 
> > http://projects.blender.org/tracker/index.php?func=detail&aid=30299&group_id=153&atid=467 
> > 
> > Cheers, 
> > Martin 
> > 
> > -------- Original-Nachricht -------- 
> >> Datum: Mon, 19 Nov 2012 19:00:23 -0300 
> >> Von: Juan Pablo Bouza 
> >> An: bf-committers at blender.org 
> >> Betreff: [Bf-committers] Cursor to center of mass 
> > 
> >> 
> >> Hi! The addition of the "center of mass" option for object origins is 
> >> really cool! 
> >> 
> >> Now, there are many times in rigging when you need the center of the 
> >> object to be at 0 0 0, specially for exporting meshes. So, in these 
> >> cases, the "origin to center of mass" option would not be used. 
> >> Nevertheless, the center of mass options would be really usefull for 
> >> placing objects such as bones... 
> >> 
> >> So, I propose to add the center of mass option also in the Cursor 
> >> snapping menu (shif+S). That would be "cursor to center of mass". 
> >> 
> >> Cheers! 
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