On Thursday October 14 2010 06:24:26 andi wrote: > Question #129296 on DOLFIN changed: > https://answers.launchpad.net/dolfin/+question/129296 > > Status: Answered => Open > > andi is still having a problem: > > On 14/10/10 11:50, Jack wrote: > > Question #129296 on DOLFIN changed: > > https://answers.launchpad.net/dolfin/+question/129296 > > > > Jack requested for more information: > > This is also a problem that I'd also like a solution for. Because, the > > Vector interface doesn't support the '[]' operator, in the past, I've > > had to resort to setting the vector via: > > > > void set(const double* block, uint m, const uint* rows) > > > > But, this seems somewhat convoluted. > > > > Therefore, trying what you suggested, Johan, one gets the error: > > > > error: lvalue required as left operand of assignment
Yes, I was a little bit too hasty with the suggestion. I am probably poluted with too much PyDOLFIN coding ;) Because our Vectors are just thin wrappers around other linear algebra objects, arent the "set operator[]" implemented. Just the "get operator[]". You could construct an array and fill this with values too. This can then be used to set the values of the vector: Array<double> values(v.size()); // Fill values... v.set_local(values); > void set(const double* block, uint m, const uint* rows) > > is the way I got a solution as well. Furthermore, I had to define a > GenericVector, and not a Vector. > > But can I ask you another question? > To make a proper assignment of the vector values for the function we > want to define, we need to figure out which the dof mapping is. Have you > used this feature? If yes, how you did it? You might post another question with a particular example for this question. Johan _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
