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Aashish,<br>
<br>
I do see errors in the wavelet example, but not in the other cases.
If ok with you , I'll send the full code (it is not much, ~100K) as
a zipped tar file by email. There is no other data. <br>
<br>
Regards,<br>
Bertwim<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/13/2014 07:43 PM, Aashish
Chaudhary wrote:<br>
</div>
<blockquote
cite="mid:CAEw35Z_Lt0xJ_bxDfSEonbOC8fXn3Ahda8NAJ+r+D7GM_9hXxA@mail.gmail.com"
type="cite">
<div dir="ltr"><span
style="font-family:arial,sans-serif;font-size:16.3636360168457px">Bertwim, </span><br>
<div><span
style="font-family:arial,sans-serif;font-size:16.3636360168457px"><br>
</span></div>
<div><span
style="font-family:arial,sans-serif;font-size:16.3636360168457px">If
you are seeing errors (like you mentioned in other email), I
am afraid that you won't see any volume. Would it be
possible for you to upload your data somewhere? </span></div>
<div><span
style="font-family:arial,sans-serif;font-size:16.3636360168457px"><br>
</span></div>
<div><span
style="font-family:arial,sans-serif;font-size:16.3636360168457px">-
Aashish</span></div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Oct 13, 2014 at 1:35 PM, B.W.H.
van Beest <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:bwvb@xs4all.nl" target="_blank">bwvb@xs4all.nl</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Yes, I do
set a scalar for each cell. I left them out in the example,
as<br>
also with a scalar I couldn't get a volume display.<br>
<br>
I'm not sure what you mean by "adjusting the transfer
function".<br>
<br>
Regards,<br>
Bertwim<br>
<div class="HOEnZb">
<div class="h5"><br>
<br>
<br>
On 10/13/2014 07:28 PM, Burlen Loring wrote:<br>
> do you have any scalars? those are not optional for
volume rendering.<br>
> Additionally you may need to adjust the transfer
function,<br>
><br>
> On 10/13/2014 10:22 AM, B.W.H. van Beest wrote:<br>
>> No, it doesn't work. The filter creates tets,
which are visible in the<br>
>> wireframe representation,<br>
>> but when I select "Volume" representation the
image disappears.<br>
>><br>
>> I can't imagine it is so difficult to render a
volume in Paraview. I<br>
>> must be doing something wrong....<br>
>><br>
>> Regards,<br>
>> Bertwim<br>
>><br>
>> On 10/13/2014 05:36 PM, Cory Quammen wrote:<br>
>>> Bertwim,<br>
>>><br>
>>> I'm not sure that the volume renderer can
handle VTK_HEXAHEDRON<br>
>>> elements. Try the "Tetrahedralize" filter
on your source and see if<br>
>>> the Volume representation works.<br>
>>><br>
>>> Thanks,<br>
>>> Cory<br>
>>><br>
>>> On Mon, Oct 13, 2014 at 10:19 AM, B.W.H.
van Beest <<a moz-do-not-send="true"
href="mailto:bwvb@xs4all.nl">bwvb@xs4all.nl</a>><br>
>>> wrote:<br>
>>>> Hi,<br>
>>>><br>
>>>> I'm struggling to get a proper 3D view
of my model system (yes,<br>
>>>> embarrassing!)<br>
>>>> but must admit my defeat.<br>
>>>> After stripping almost everything,
keeping the minimum to exhibit the<br>
>>>> issue,<br>
>>>> I'm left with the following:<br>
>>>><br>
>>>> I have created a simple box source. To
get a 3D representation, I<br>
>>>> sub-classed<br>
>>>> the code for this Source from
vtkUnstructuredGridAlgorithm.<br>
>>>><br>
>>>> In the RequestData method, I define the
8 point of the unit cube. I<br>
>>>> added the points to the<br>
>>>> underlying unstructed grid, and I
specified the cell topology.<br>
>>>><br>
>>>> This all seems to work: when
instantiating this box Source, I *do*<br>
>>>> get the<br>
>>>> expected cube in the representations
(Surface, wireframe, Points).<br>
>>>><br>
>>>> However, when I select the "Volume"
representation, *the image<br>
>>>> disappears*<br>
>>>> What am I doing wrong?<br>
>>>><br>
>>>> As the code is not too long and very
simple, I take the freedom to<br>
>>>> paste<br>
>>>> it below.<br>
>>>><br>
>>>> Kind regards.<br>
>>>> Bertwim<br>
>>>><br>
>>>>
=========================================<br>
>>>><br>
>>>> int sphBoxSourceC::RequestData(
vtkInformation *vtkNotUsed(request),<br>
>>>>
vtkInformationVector<br>
>>>> **vtkNotUsed(inputVector),<br>
>>>>
vtkInformationVector *outputVector)<br>
>>>> {<br>
>>>> // Get the info object<br>
>>>> vtkInformation *outInfo =
outputVector->GetInformationObject(0);<br>
>>>> vtkUnstructuredGrid *umesh =
vtkUnstructuredGrid::SafeDownCast(<br>
>>>> outInfo->Get(
vtkDataObject::DATA_OBJECT() ) );<br>
>>>><br>
>>>> // Pre-allocate some memory<br>
>>>> umesh->Allocate( 1024 );<br>
>>>><br>
>>>> // Specify points.<br>
>>>> double r0[] = { 0.0, 0.0, 0.0 };<br>
>>>> double r1[] = { 1.0, 0.0, 0.0 };<br>
>>>> double r2[] = { 0.0, 1.0, 0.0 };<br>
>>>> double r3[] = { 1.0, 1.0, 0.0 };<br>
>>>> double r4[] = { 0.0, 0.0, 1.0 };<br>
>>>> double r5[] = { 1.0, 0.0, 1.0 };<br>
>>>> double r6[] = { 0.0, 1.0, 1.0 };<br>
>>>> double r7[] = { 1.0, 1.0, 1.0 };<br>
>>>><br>
>>>> // Collect the points in a vtk data
structures.<br>
>>>> {<br>
>>>> vtkSmartPointer<vtkPoints>
points =<br>
>>>>
vtkSmartPointer<vtkPoints>::New();<br>
>>>> points->SetDataType(
VTK_DOUBLE );<br>
>>>><br>
>>>> points->InsertNextPoint( r0
);<br>
>>>> points->InsertNextPoint( r1
);<br>
>>>> points->InsertNextPoint( r2
);<br>
>>>> points->InsertNextPoint( r3
);<br>
>>>> points->InsertNextPoint( r4
);<br>
>>>> points->InsertNextPoint( r5
);<br>
>>>> points->InsertNextPoint( r6
);<br>
>>>> points->InsertNextPoint( r7
);<br>
>>>><br>
>>>> // Transfer points to umesh.<br>
>>>> umesh->SetPoints( points );<br>
>>>> }<br>
>>>><br>
>>>> // Cell Topology<br>
>>>> vtkIdType vtx[8] = { 0, 1, 3, 2, 4,
5, 7, 6 };<br>
>>>> umesh->InsertNextCell(
VTK_HEXAHEDRON, 8, vtx );<br>
>>>><br>
>>>> return 1;<br>
>>>> }<br>
>>>><br>
>>>><br>
>>>><br>
>>>>
_______________________________________________<br>
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href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>>>><br>
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target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
>>>><br>
>>>> Please keep messages on-topic and check
the ParaView Wiki at:<br>
>>>> <a moz-do-not-send="true"
href="http://paraview.org/Wiki/ParaView"
target="_blank">http://paraview.org/Wiki/ParaView</a><br>
>>>><br>
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>><br>
>> Please keep messages on-topic and check the
ParaView Wiki at:<br>
>> <a moz-do-not-send="true"
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-- <br>
<div dir="ltr"><font face="trebuchet ms, sans-serif"><i>|
Aashish Chaudhary <br>
| Technical Leader <br>
| Kitware Inc. <br>
</i></font>
<div><i><font face="trebuchet ms, sans-serif">| </font><a
moz-do-not-send="true"
href="http://www.kitware.com/company/team/chaudhary.html"
target="_blank">http://www.kitware.com/company/team/chaudhary.html</a></i></div>
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