<DIV>Hi:</DIV>
<DIV>&nbsp;&nbsp;&nbsp; I use a .xmf file to read HDF5 raw data. I find that the volume represention option&nbsp;would be not active when I use "Collection Grid".&nbsp; Volume represention can be used until I remove the "Collection Grid". Does this mean that paraview can't volume render multi-block data? or I&nbsp;write&nbsp;a wrong&nbsp;xmf file? Thanks for you help<STRONG>:)</STRONG></DIV>
<DIV>&nbsp;</DIV>
<DIV>the following&nbsp;is my xmf file: </DIV>
<DIV>&lt;?xml version="1.0" ?&gt;<BR>&lt;!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []&gt;<BR>&lt;Xdmf&gt; <BR>&nbsp;&lt;Domain&gt;<BR>&nbsp;<FONT color="#0000ff"> &lt;</FONT><FONT color="#0000ff">Grid Name="BX_Scalar" GridType="Collection"&gt; #volume representation will active after remove this line</FONT><BR>&nbsp;&nbsp; &lt;Grid Name="BX0"&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp; &lt;Topology TopologyType="3DCoRectMesh" Dimensions="50 80 800"/&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp; &lt;Geometry GeometryType="ORIGIN_DXDYDZ"&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;DataStructure&nbsp; Name="Origin" DataType="Float" Dimensions="3" Format="XML"&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0 0 0<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/DataStructure&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;DataStructure Name="Spacing" DataType="Float" Dimensions="3" Format="XML"&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1 1 1<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/DataStructure&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/Geometry&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;Attribute Name="Scalar" Center="Node"&gt;<BR>&nbsp;&nbsp; &lt;DataStructure&nbsp;&nbsp; Name="Points"&nbsp;&nbsp; Dimensions="50 80 800"&nbsp;&nbsp;&nbsp; Format="HDF"&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;lpi-bx-10.000-21:/bx&nbsp;<BR>&nbsp;&nbsp; &lt;/DataStructure&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp; &lt;/Attribute&gt;<BR>&nbsp;&nbsp; &lt;/Grid&gt;<BR>&nbsp; <FONT color="#0000ff">&lt;/Grid&gt; #volume representation will active after remove this line</FONT><BR>&nbsp;&lt;/Domain&gt;<BR>&lt;/Xdmf&gt;<BR></DIV>
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