[Paraview] XML-Data

[Thorsten Hater]

Thanks, reading single files does work now.
The next step would be reading distributed data. Which looks simple
using the .pvti format.
My XML file now looks like this:

<?xml version="1.0"?>
<VTKFile type="PImageData" version="0.1" byte_order="LittleEndian">
	<PImageData WholeExtent="0 257 0 255 0 255"  Origin="0 0 0"  
Spacing="1 1 1">
		<Piece Extent="0 257 0 255 0 63" Source="process0/out.vti"/>
		<Piece Extent="0 257 0 255 64 127" Source="process1/out.vti"/>
		<Piece Extent="0 257 0 255 128 191" Source="process2/out.vti"/>
		<Piece Extent="0 257 0 255 192 255" Source="process3/out.vti"/>
	</PImageData>
</VTKFile>

But on reading this Paraview complains about missing data between the  
blocks
(namely 63-64, 127-128 and 191-192).
How can I solve this?

     Thorsten

Am 19.09.2007 um 21:45 schrieb Kent Eschenberg:

> Please keep correspondance on the list so that 1) others can  
> benefit from our brilliant insights :) and 2) others can correct  
> our stupid mistakes.
>
> You almost have it right - the VTK XML file documentation is  
> missing two important details. First, change your line to
>
>    <AppendedData encoding="raw">
>
> Section, start each section of raw data with a 4-byte integer  
> giving the number of bytes in that section. In your case there is  
> just one such section.
>
> By the way your grid is not "rectilinear".
>
> Almost there!
> Kent
> Pittsburgh Supercomputing Center
>
>
> Thorsten Hater wrote:
>> At the moment my XML file (one block only) looks like this:
>>     <?xml version="1.0"?>
>>     <VTKFile type="ImageData" version="0.1"  
>> byte_order="LittleEndian">
>>       <ImageData WholeExtent="0 65 0 63 0 63" Origin="0 0 0"  
>> Spacing="1 1 1">
>>         <Piece Extent="0 65 0 63 0 63">
>>           <PointData Scalars="passiveScalar">
>>             <DataArray type="Float32" Name="passiveScalar"  
>> format="appended" offset="0"                   />
>>           </PointData>
>>           <CellData>
>>           </CellData>
>>         </Piece>
>>       </ImageData>
>>           <AppendedData>
>>             _#data#
>>         </AppendedData>
>>     </VTKFile>
>> Where #data# is the binary block.
>> Is this the correct XML document, provided I want to use uniform  
>> rectilinear grids?