Question #159021 on DOLFIN changed: https://answers.launchpad.net/dolfin/+question/159021
Douglas Brinkerhoff posted a new comment: How would one create an expression out of some already known data? It seems as though the Expression class is very good for building a spatially dependent combination of parameters and elementary functions, but I'm not sure how I could turn some list or array of data into an expression. Stated another way: In my particular application, I'm solving for vertically averaged velocities within glacial ice (Basically shallow water equations, with some extra stuff). There is a 0-order solution which is solely a function of local geometry, e.g. Surface slope and ice thickness, which are currently parameterized as coefficients. This is just a simple calculation, not a PDE, and it is also stored as coefficients, called u0 and v0. I want to use this zero order solution as an initial guess for a non-linear system of equations which yields a first order solution. Is there a way to package u0 and v0 as an expression, or something like it, such that it is available to be projected, assigned, or interpolated? -- You received this question notification because you are a member of DOLFIN Team, which is an answer contact for DOLFIN. _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
