NamedData is not supported, how to change NamedData to AnyData？

[曾元圆]

I am trying to run a open source code, but an error occurred.
In the code it uses NamedData like this:
NamedData< Vector <double> *> solution_data;
Info_box.initialize(fe, mapping, solution_data);

How should I use AnyData to replace it?
Actually I am a new learner, I tried to read the documentation related to AnyData class but didn't quite understand how to use it.

[Wolfgang Bangerth]

On 10/26/2017 06:15 AM, 曾元圆 wrote:
> I am trying to run a open source code, but an error occurred.
> In the code it uses NamedData like this:
> NamedData< Vector <double> *> solution_data;
> Info_box.initialize(fe, mapping, solution_data);

What is the error you get? The first step in fixing an error is to carefully
read the error message.

Best
W.


--
------------------------------------------------------------------------
Wolfgang Bangerth email: bang...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/

[Praveen C]

step-39 should be of some help to you.

best
praveen

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[曾元圆]

Sorry, I should have describe my problem more specificlly. The problem is, I'm running a code writen several years ago. In the code it used the class: NamedData< Vector <double> *>, but Deal.II has deleted this template class so I have no idea how it work and the way to use it. I searched in the mailing list and get to know that this class was replaced by a new class: AnyData. But AnyData is not a template class, so I don't know how to change from NameData to AnyData. I just looked up step 39 and solved the problem. It should be changed to like this: 

    NamedData< Vector <double> *> solution_data;

    solution_data.add (&solution, "solution");

     ------>

    AnyData solution_data;
solution_data.add<Vector<double>*>(&solution, "solution");  

Is there a record on how the template/class/function names are changed, so I can find it quickly in case one day in the future I found the code I wrote today can't run?

Anyway, thank you so much for your reply Prof.Bangerth. Thank you! 

在 2017年10月26日星期四 UTC+8下午8:51:24，Wolfgang Bangerth写道：

[曾元圆]

Wow, it's really surprising and exciting to see the original developer of the code I'm now runing answering this question! Thank you so much Prof. Praveen.This is greetings from remote China! I'm now a master student and am running and learning the DG code developed by you. So I really want to show my respect and gratitude to you. By the way, though I have leared deal.II for a few days, but still found it difficult to grasp this tool. I find it too difficult to handle that many classes/functions and assemble them to do something. When I try to use a class or a funtion I always try to understand what is going on underneath. But when I tried to go deep into the code, I found there are too many things to learn and too difficult to learn. Take the MeshWorker::DoFInfo/IntegrationInfoBox... as an example, it's always difficult for me to understand the designing philosophy and the logic behind it, though there are many tutorial examples and documentations already. Could you kindly introduce some experience and give advices on how to efficiently learn and master this tool and make it into use for a beginner like me. Best regards and many thanks!

在 2017年10月26日星期四 UTC+8下午9:07:56，Praveen C写道：

[Wolfgang Bangerth]

On 10/26/2017 08:17 AM, 曾元圆 wrote:
>
> Is there a record on how the template/class/function names are changed,
> so I can find it quickly in case one day in the future I found the code
> I wrote today can't run?

Yes, we list changes from each version to the next here:
https://www.dealii.org/developer/doxygen/deal.II/pages.html
For each version, the drop-down menu at https://www.dealii.org also has
an entry called "Changes" or similar that lists what has changed from
the previous version of deal.II.