The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Software » comp.soft-sys.matlab

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Compute a normal vector on a mesh
Replies: 1   Last Post: Apr 12, 2013 1:22 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Bruno Luong

Posts: 9,822
Registered: 7/26/08
Re: Compute a normal vector on a mesh
Posted: Apr 12, 2013 1:22 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

"Toan Cao" <> wrote in message <kk7thb$nl5$>...
> Hi everyone,
> I have a mesh in 3D space (consists of 3D vertices and facets). Normal vector at each vertex and normal vector of each facet are available.
> If i would like to compute normal vector of a point X on mesh (X is not one of any vertices of mesh). Do you have any solution ?
> I read some documents which recommend to use barycentric coordinate to interpolate normal vector of X if we know a triangle (facet) which X is inside. If so, computation is so much when we have to check every facet for X !?

Hint: The cross-product of two edges provide a normal vector.


Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.