Re: [deal.II] How to download deal ii 8.2.1 virtual machine image

2020-04-30 Thread Ajith nandan
Thanks, Professor Wolfgang and James Gorman.
I will try learning deal ii from the steps presented on the website.

Regards
Ajith

On Thu, Apr 30, 2020 at 7:06 PM James Gorman 
wrote:

> I talked with Greg, and it does not appear to they plan on updating the
> material. I am using it as just another source for examples of how to use
> deal.ii, but doing any examples and problem solving in the most-recent
> version of deal.ii.
>
> James
>
> On Tuesday, April 28, 2020 at 11:38:44 PM UTC-4, Ajith nandan wrote:
>>
>> I hope someone can update the material with the latest version of deal ii.
>>
>> Thanks & Regards
>> Ajith
>>
>> On Tue, Apr 28, 2020 at 10:14 PM James Gorman 
>> wrote:
>>
>>> I believe the University of Michigan has an open access course on FEM
>>> using deal.ii, and it uses version 8.2.1. The videos/course notes were
>>> first posted around 2014, but the supplemental help for using deal.ii was
>>> uploaded in 2015. It doesn't appear as though the material has been
>>> updated, and I'm not sure if Krishna and/or Greg intend to in the near
>>> future.
>>>
>>> Sincerely,
>>> James Gorman
>>>
>>> On Tuesday, April 28, 2020 at 11:48:24 AM UTC-4, Wolfgang Bangerth wrote:

 On 4/28/20 8:54 AM, Ajith nandan wrote:
 > I want to install deal ii 8.2.1 virtual machine image in Oracle VM
 virtual
 > machine in my windows 10 PC. How to install 8..2.1 deal II version.
 > Can anyone please guide me in this. I am using deal II for first time
 for
 > doing a course.

 Ajith,
 that's a rather old version of deal.II - more than 5 years. Why would
 you want
 so old a version of deal.II?

 But in general, what you can do is open the VM, open a browser in it,
 download
 whatever deal.II version you want from
https://github.com/dealii/dealii/releases
 and install it in the VM following the installation instructions on the
 website. A VM is, in this regard, really no different from any other
 machine
 on which you want to install deal.II.

 Best
   W.

 --
 

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

 --
>>> The deal.II project is located at http://www.dealii.org/
>>> For mailing list/forum options, see
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>>> 
>>> .
>>>
>> --
> 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
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> 
> .
>

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[deal.II] Finding vertices on boundaries

2020-04-30 Thread Shahab Golshan
Dear all,
I want to find all the vertices located on boundaries. It seems the 
function at_boundary() does not work for vertices (points). Do you have any 
suggestions how to obtain all the vertices located on the boundaries?
Best,
Shahab

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[deal.II] Re: Finding vertices on boundaries

2020-04-30 Thread Bruno Blais
Dear Shahab,
I think the best solution (I might be wrong) is to loop through the 
boundary faces and acquire the DOF indices that lie on a boundary face. You 
could then store them in an std::map or a similar structure that prevents 
data duplication.


You can create a vector and store the dof indices of a face in a following 
fashion that I believe should work.
Assuming you already have a vector such as:
std::vector face_dofs;




In the loops within the cell then the faces, assuming you are at a face 
*face* and that you have a FiniteElement fe, you can do:
face_dofs.resize(fe.dofs_per_face);
face->get_dof_indices(face_dofs, cell->active_fe_index());

This will gather all the dofs indices of that given face. If that face is a 
boundary face it means you have gathered all of its dofs location.
I hope that points you in the right direction and helps you!
Best
Bruno




On Thursday, 30 April 2020 23:05:31 UTC-4, Shahab Golshan wrote:
>
> Dear all,
> I want to find all the vertices located on boundaries. It seems the 
> function at_boundary() does not work for vertices (points). Do you have any 
> suggestions how to obtain all the vertices located on the boundaries?
> Best,
> Shahab
>

-- 
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Re: [deal.II] How to download deal ii 8.2.1 virtual machine image

2020-04-30 Thread James Gorman
I talked with Greg, and it does not appear to they plan on updating the 
material. I am using it as just another source for examples of how to use 
deal.ii, but doing any examples and problem solving in the most-recent 
version of deal.ii.

James

On Tuesday, April 28, 2020 at 11:38:44 PM UTC-4, Ajith nandan wrote:
>
> I hope someone can update the material with the latest version of deal ii.
>
> Thanks & Regards
> Ajith
>
> On Tue, Apr 28, 2020 at 10:14 PM James Gorman  > wrote:
>
>> I believe the University of Michigan has an open access course on FEM 
>> using deal.ii, and it uses version 8.2.1. The videos/course notes were 
>> first posted around 2014, but the supplemental help for using deal.ii was 
>> uploaded in 2015. It doesn't appear as though the material has been 
>> updated, and I'm not sure if Krishna and/or Greg intend to in the near 
>> future.
>>
>> Sincerely,
>> James Gorman
>>
>> On Tuesday, April 28, 2020 at 11:48:24 AM UTC-4, Wolfgang Bangerth wrote:
>>>
>>> On 4/28/20 8:54 AM, Ajith nandan wrote: 
>>> > I want to install deal ii 8.2.1 virtual machine image in Oracle VM 
>>> virtual 
>>> > machine in my windows 10 PC. How to install 8..2.1 deal II version. 
>>> > Can anyone please guide me in this. I am using deal II for first time 
>>> for 
>>> > doing a course. 
>>>
>>> Ajith, 
>>> that's a rather old version of deal.II - more than 5 years. Why would 
>>> you want 
>>> so old a version of deal.II? 
>>>
>>> But in general, what you can do is open the VM, open a browser in it, 
>>> download 
>>> whatever deal.II version you want from 
>>>https://github.com/dealii/dealii/releases 
>>> and install it in the VM following the installation instructions on the 
>>> website. A VM is, in this regard, really no different from any other 
>>> machine 
>>> on which you want to install deal.II. 
>>>
>>> Best 
>>>   W. 
>>>
>>> -- 
>>>  
>>> Wolfgang Bangerth  email: bang...@colostate.edu 
>>> www: 
>>> http://www.math.colostate.edu/~bangerth/ 
>>>
>>> -- 
>> 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 dea...@googlegroups.com .
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/dealii/cc26bb78-44f2-4b61-9756-0f06f4d5bffb%40googlegroups.com
>>  
>> 
>> .
>>
>

-- 
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