[petsc-users] [FEM doubt] Not Related to PETSc

[Jed Brown]

On Sat, Nov 5, 2011 at 15:04, Dharmendar Reddy <dharmareddy84 at gmail.com>wrote:

> So, i need to transform the Gauss quadrature points (qp) from the
> reference 2D triangle to 3D using affine transformation of the form:
> [x y z]^T = A x [qp_x qp_y] + [c1 c2 c3]^T; A is a 3 x 2 matrix , am i
> right?
>

You need a quadrature for the face in physical space which means you need a
quadrature in the reference coordinates and the Jacobian of the coordinate
transformation. It looks like you're on the right track.
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