<html>
<head>
<style>
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
FONT-SIZE: 10pt;
FONT-FAMILY:Tahoma
}
</style>
</head>
<body class='hmmessage'>
Hello<BR>
<BR>
Following on from Mike Jackson's info:<BR>
<BR>
><I> Hi everyone,<BR></I>><I><BR></I>><I> I am finding some problems when trying to convert my three column <BR></I>><I> ASCII data (XYZ) into vtk format. I know I have to define poligones <BR></I>><I> and normals but I don't really know how. Is there any program that <BR></I>><I> converts general raw data files to vtk files? If not, any advice on <BR></I>><I> how to get the poligones and normals would be very appreciated. <BR></I>><I> Thank you very much in advance for your help.<BR></I>><I><BR></I>><I> Patty<BR></I>><I><BR></I>><I> -- <BR></I>><I> Dr Patricia Lozano-Casal<BR></I>><I> Institute for Materials and Processes<BR></I>><I> School of Engineering and Electronics<BR></I>><I> University of Edinburgh<BR></I>><I> Kenneth Denbigh Building<BR></I>><I> The King's Buildings<BR></I>><I> Mayfield Road<BR></I>><I> Edinburgh, EH9 3JL, United Kingdom<BR></I>><I> Phone: ++44 (0)131 650 4859<BR></I>><I> Fax: ++44 (0)131 650 6551<BR></I>><I> E-mail: <A href="http://www.paraview.org/mailman/listinfo/paraview"><U><FONT color=#0000ff>P.Lozano-Casal at ed.ac.uk</FONT></U></A><BR></I>><I><BR></I>><I> -- <BR></I>><I> The University of Edinburgh is a charitable body, registered in<BR></I>><I> Scotland, with registration number SC005336.<BR></I>><I> --<BR></I><BR>Is your data just points in space? And you want to show those points <BR>in ParaView?<BR><BR>I might be inclined to try an unstructured grid with only VTK_VERTEX <BR>as cell types.<BR><BR><<A href="http://www.vtk.org/pdf/file-formats.pdf"><U><FONT color=#0000ff>http://www.vtk.org/pdf/file-formats.pdf</FONT></U></A>> may help you figure out <BR>what to write. Page 4 explains about the UnstructuredGrid format, <BR>while there is an example starting at the bottom of page 8.<BR><BR># Example VTK file for general XYZ data<BR># vtk DataFile Version 2.0<BR>Unstructured Grid Example<BR>ASCII<BR>DATASET UNSTRUCTURED_GRID<BR>POINTS 5 float<BR>0.0 0.0 0.0<BR>1.0 0.0 0.0<BR>2.0 0.0 0.0<BR>0.0 1.0 0.0<BR>1.0 1.0 0.0<BR>CELLS 5 10<BR>1 0<BR>1 1<BR>1 2<BR>1 3<BR>1 4<BR>CELL_TYPES 5<BR>1<BR>1<BR>1<BR>1<BR>1<BR><BR># End VTK File<BR><BR>
I tried the test file as given and it certainly did not like the first line which I deleted, and then the file would run and generate 5 points. An error message was generated but did not stop the plotting:<BR>
<BR>
<SPAN style="COLOR: #800000; FONT-FAMILY: 'Courier'">ERROR: In C:\berk\ReleaseBuilds\ParaView3\VTK\IO\vtkUnstructuredGridReader.cxx, line 350</SPAN><BR>
<P style="MARGIN: 0px; COLOR: #800000; TEXT-INDENT: 0px; FONT-FAMILY: 'Courier'; -qt-block-indent: 0">vtkUnstructuredGridReader (05BAC7B0): Unrecognized keyword: #</P>
<BR>
I think this is definitely something that would be a big help to many of us that work on XYZ data, if Paraview could automatically load XYZ data without the need to compile a separate reformatted structure. Clearly if it is only a few data points etc then the file could be done manually, but for more complex and large datasets this gets to be a problem.<BR>
<BR>
Perhaps a stand-alone application could be written to convert from XYZ (or even netCDF) formats to ones that Paraview can load without issue. There also appears to be a issue of legacy formats and the newer structures to contend with.<BR>
<BR>
Lester<BR>
<BR>
<P style="MARGIN: 0px; COLOR: #800000; TEXT-INDENT: 0px; FONT-FAMILY: 'Courier'; -qt-block-indent: 0"><BR> </P><br /><hr />She said what? About who? <a href='http://www.msnsearchstar.com' target='_new'>Shameful celebrity quotes on Search Star!</a></body>
</html>