Dear all, While I can use the shape_grad function to get the gradient of the shape function with respect to the real cell coordinates, would there be a way to get the shape_grad with respect to the reference natural coordinates? For example, for shell element (that I'm working on), I have the global coordinates (x, y, z) for a point and also a natural coordinate system (r, s, t).
One possibility is that I can use the chain rule and the jacobian matrix to get that value, but it'll be very computationally inefficient. Could anyone please help? Best, Shawn -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
