[Paraview] Problem with Custom ParaView Reader

[Kalin Kanov]

Hi Andy,

Thanks for the quick response. I am setting the extent to be 
[0,16,0,16,0,16], as follows:

in the constructor:
	this->extent[0] = 0;
	this->extent[1] = 16;
	this->extent[2] = 0;
	this->extent[3] = 16;
	this->extent[4] = 0;
	this->extent[5] = 16;

in RequestInformation():
	outInfo->Set(
		vtkStreamingDemandDrivenPipeline::
		WHOLE_EXTENT(),
		this->extent, 6);

Attached is the .vti file and the code. In the test harness I also have 
a vtkRenderer, which also displays the data as a 3d cube.



On 12.2.2014 г. 13:30, Andy Bauer wrote:
> Hi Kalin,
>
> I'm thinking that maybe there is ghost level information that is wrong,
> or maybe extent information. I'm assuming that you're running the server
> in serial so in that case you shouldn't have any ghost levels. If your
> grid has 16 points in each direction than than the extent for that
> should be [i, i+15, j, j+15, k, k+15] for a single process (note that
> extents don't need to start from 0 but usually do). If your grid is 16
> cells in each direction than the extent would be [i, i+16, j, j+16, k,
> k+16].
>
> If that isn't the problem, dan you share your code and your vti file
> from your test harness?
>
> Regards,
> Andy
>
>
> On Wed, Feb 12, 2014 at 1:11 PM, Kalin Kanov <kalin at cs.jhu.edu
> <mailto:kalin at cs.jhu.edu>> wrote:
>
>     Dear All,
>
>     I am developing a custom ParaView reader for my data. I have a
>     working plugin for ParaView that reads and displays the data.
>     However, what I am getting in the 3D view is not as expected. My
>     reader subclasses vtkImageAlgorithm and produces a 3D structured
>     grid. When I load the data in ParaView I only see 3 of the surfaces
>     of the cube (attached is a screenshot). Any idea why this would be
>     happening?
>
>     When I view the data in spreadsheet form all 4096 point (the testing
>     cube is 16x16x16) have associated scalar data and the coordinates
>     look good, but the 3D view displays only the left, right and bottom
>     walls of the cube. Additionally, I also have a small test harness
>     that uses my custom reader as input for a vtkXMLImageDataWriter and
>     the resulting .vti file when loaded into ParaView and visualized
>     looks good.
>
>     Thank you,
>     Kalin Kanov
>
>

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