[vtk-developers] VTK Hackathon this Thursday

David Doria daviddoria at gmail.com
Thu Apr 27 14:03:09 EDT 2017 

I just wanted to say that I was very excited to see this event! It seems
like it's going well already - high five to all involved!

David

On Thu, Apr 27, 2017 at 11:40 AM, Jon Haitz Legarreta <
jhlegarreta at vicomtech.org> wrote:

> Hi,
> although the example in this case does not seem too long to me, reaching a
> consensus in terms of what results in a too long code or an overly
> complicated example may be hard.
>
> There is already some sort of regression/baseline testing if the test
> produces an output in terms of an image/file, right?
>
> Without harm to the idea of steadily adding more tests to/improving the
> existing ones, if the examples are the entry-point for newcomers, I
> wouldn't add explicit regression in their code.
>
> I'd favor the idea of making clear in the examples what is essential for a
> VTK class to be used. Otherwise, if a given class requires a couple or a
> few examples to show all of its potential or essential features, I'd add
> them as needed.
>
> JON HAITZ
>
> --
>
> On 27 April 2017 at 18:03, Andy Bauer <andy.bauer at kitware.com> wrote:
>
>> Hi,
>>
>> A thought on these tests -- I'd like to add minimal testing to some of
>> them. The thought here being that we both show good coding practice as well
>> as verify that the examples work as expected. The concern though is that
>> this could make the examples too long and obfuscate what we're trying to
>> demonstrate in an example.
>>
>> Below is what I was thinking for the XMLPUnstructuredGridWriter example (
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/IO/XMLPUnstructuredGridWriter).
>> It roughly doubles the amount of lines in the example file.
>>
>> Thoughts on this? At the VTK hackathon it seems to generally be thought
>> of as a good idea but I thought I'd put it out to the full dev list.
>>
>> Thanks,
>> Andy
>>
>> ================
>> #include <vtkDelaunay3D.h>
>> #include <vtkSmartPointer.h>
>> #include <vtkSphereSource.h>
>> #include <vtkUnstructuredGrid.h>
>> #include <vtkXMLPUnstructuredGridReader.h>
>> #include <vtkXMLPUnstructuredGridWriter.h>
>> #include <vtkXMLUnstructuredGridReader.h>
>>
>> int main(int, char *[])
>> {
>>   vtkSmartPointer<vtkSphereSource> sphereSource =
>>     vtkSmartPointer<vtkSphereSource>::New();
>>   sphereSource->Update();
>>
>>   vtkSmartPointer<vtkDelaunay3D> delaunay =
>>     vtkSmartPointer<vtkDelaunay3D>::New();
>>   delaunay->SetInputConnection(sphereSource->GetOutputPort());
>>   delaunay->Update();
>>
>>   vtkSmartPointer<vtkXMLPUnstructuredGridWriter> writer =
>>     vtkSmartPointer<vtkXMLPUnstructuredGridWriter>::New();
>>   writer->SetInputConnection(delaunay->GetOutputPort());
>>   writer->SetFileName("Test.pvtu");
>>   writer->SetNumberOfPieces(4);
>>   writer->SetStartPiece(0);
>>   writer->SetEndPiece(3);
>>   writer->Update();
>>
>>   // We should have created a Test.pvtu and Test_[0-3].vtu.
>>   // Check that the files exist and have the expected number of cells.
>>   vtkSmartPointer<vtkXMLPUnstructuredGridReader> preader =
>>     vtkSmartPointer<vtkXMLPUnstructuredGridReader>::New();
>>   preader->SetFileName("Test.pvtu");
>>   preader->Update();
>>   if (preader->GetOutput()->GetNumberOfCells() != 152)
>>   {
>>     cout << "Should have written out 152 cells but got "
>>          << preader->GetOutput()->GetNumberOfCells() << endl;
>>     return EXIT_FAILURE;
>>   }
>>   for (int i=0;i<4;i++)
>>   {
>>     vtkSmartPointer<vtkXMLUnstructuredGridReader> reader =
>>       vtkSmartPointer<vtkXMLUnstructuredGridReader>::New();
>>     std::string fileName = "Test_" + std::to_string(i) + ".vtu";
>>     reader->SetFileName(fileName.c_str());
>>     reader->Update();
>>     if (reader->GetOutput()->GetNumberOfCells() != 38)
>>     {
>>       cout << "Should have written out 38 cells but got "
>>            << reader->GetOutput()->GetNumberOfCells() << endl;
>>       return EXIT_FAILURE;
>>     }
>>   }
>>   return EXIT_SUCCESS;
>> }
>> =====================
>>
>> On Mon, Apr 24, 2017 at 4:24 PM, Bill Lorensen <bill.lorensen at gmail.com>
>> wrote:
>>
>>> Dave,
>>>
>>> For those attending the hackathon I suggest they fork the VTK wiki
>>> examples repo at https://github.com/lorensen/VTKWikiExamples and build
>>> them.
>>>
>>> Also, I'd like to give a short talk at the beginning of the hackathon
>>> to describe the current wiki example background and mechanisms.
>>>
>>> Thanks,
>>>
>>> Bill
>>>
>>>
>>> On Mon, Apr 24, 2017 at 10:11 AM, David E DeMarle
>>> <dave.demarle at kitware.com> wrote:
>>> > I've started a shared doc with some suggestions of things we might
>>> work on.
>>> > Please improve the list as you see fit.
>>> >
>>> > https://docs.google.com/document/d/1U6NTAXWkdebcZp_ZhQo2LJm0
>>> CBN78LM91yg7oaKgOZ8/edit?usp=sharing
>>> >
>>> >
>>> > David E DeMarle
>>> > Kitware, Inc.
>>> > R&D Engineer
>>> > 21 Corporate Drive
>>> > Clifton Park, NY 12065-8662
>>> > Phone: 518-881-4909
>>> >
>>> > On Mon, Apr 24, 2017 at 9:43 AM, David E DeMarle <
>>> dave.demarle at kitware.com>
>>> > wrote:
>>> >>
>>> >> Hello,
>>> >>
>>> >> Just a quick reminder about the upcoming VTK hackathon.
>>> >>
>>> >> The focus area will be VTK examples. Two different sets of which can
>>> be
>>> >> found
>>> >> here:
>>> >> https://gitlab.kitware.com/vtk/vtk/tree/master/Examples
>>> >> and here:
>>> >> http://www.vtk.org/Wiki/VTK/Examples
>>> >>
>>> >> We'll start at 9:30 EST time. If you happen to be near Clifton Park,
>>> NY,
>>> >> USA, drop me a line asap and I'll get you in to the building.
>>> >>
>>> >> Otherwise you can meet up with everyone online here:
>>> >> https://hangouts.google.com/hangouts/_/kitware.com/dave-demarle
>>> >>
>>> >> David E DeMarle
>>> >> Kitware, Inc.
>>> >> R&D Engineer
>>> >> 21 Corporate Drive
>>> >> Clifton Park, NY 12065-8662
>>> >> Phone: 518-881-4909
>>> >
>>> >
>>> >
>>> > _______________________________________________
>>> > Powered by www.kitware.com
>>> >
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>>> vtk-developers
>>> >
>>> > Follow this link to subscribe/unsubscribe:
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>>> >
>>> >
>>>
>>>
>>>
>>> --
>>> Unpaid intern in BillsBasement at noware dot com
>>> _______________________________________________
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>>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
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>>
>> Follow this link to subscribe/unsubscribe:
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>>
>>
>>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Search the list archives at: http://markmail.org/search/?q=vtk-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtk-developers
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>
>
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