<div dir="ltr">I am using a 3D structured orthogonal grid in cylindrical coordinates. I can read the grid as a cartesian grid using the following XDMF file by specifying TopologyType &quot;3DRectMesh&quot; and GeometryType=&quot;VXVYVZ&quot; (see attached image):<div>
<br></div><div><div>&lt;?xml version=&quot;1.0&quot; ?&gt;</div><div>&lt;!DOCTYPE Xdmf SYSTEM &quot;Xdmf.dtd&quot; []&gt;</div><div>&lt;Xdmf Version=&quot;2.0&quot;&gt;</div><div>&lt;Domain&gt;</div><div>&lt;Grid Name=&quot;mesh&quot; GridType=&quot;Uniform&quot;&gt;</div>
<div>&lt;Topology TopologyType=&quot;3DRectMesh&quot; NumberOfElements=&quot;10 4 6&quot;/&gt;</div><div>&lt;Geometry GeometryType=&quot;VXVYVZ&quot;&gt;</div><div>&lt;DataItem Dimensions=&quot;6&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div>
<div>0.0 1.0 2.0 3.0 4.0 5.0</div><div>&lt;/DataItem&gt;</div><div>&lt;DataItem Dimensions=&quot;4&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div><div>0.0 1.5708 3.1415 4.7124</div>
<div>&lt;/DataItem&gt;</div><div>&lt;DataItem Dimensions=&quot;10&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div><div>0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0</div><div>&lt;/DataItem&gt;</div>
<div>&lt;/Geometry&gt;</div><div>&lt;/Grid&gt;</div><div>&lt;/Domain&gt;</div><div>&lt;/Xdmf&gt;</div></div><div><br></div><div style>When I try to read the grid as 3DSMesh which I think corresponds to curvilinear Paraview crashes.</div>
<div style><br></div><div style><div><div>&lt;?xml version=&quot;1.0&quot; ?&gt;</div><div>&lt;!DOCTYPE Xdmf SYSTEM &quot;Xdmf.dtd&quot; []&gt;</div><div>&lt;Xdmf Version=&quot;2.0&quot;&gt;</div><div>&lt;Domain&gt;</div>
<div>&lt;Grid Name=&quot;mesh&quot; GridType=&quot;Uniform&quot;&gt;</div><div>&lt;Topology TopologyType=&quot;3DSMesh&quot; NumberOfElements=&quot;10 4 6&quot;/&gt;</div><div>&lt;Geometry GeometryType=&quot;VXVYVZ&quot;&gt;</div>
<div>&lt;DataItem Dimensions=&quot;6&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div><div>0.0 1.0 2.0 3.0 4.0 5.0</div><div>&lt;/DataItem&gt;</div><div>&lt;DataItem Dimensions=&quot;4&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div>
<div>0.0 1.5708 3.1415 4.7124</div><div>&lt;/DataItem&gt;</div><div>&lt;DataItem Dimensions=&quot;10&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div><div>0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0</div>
<div>&lt;/DataItem&gt;</div><div>&lt;/Geometry&gt;</div><div>&lt;/Grid&gt;</div><div>&lt;/Domain&gt;</div><div>&lt;/Xdmf&gt;</div></div><div><br></div></div><div style> Is there any way to read a 3D cylindrical grid using three 1D arrays for the coordinates in each direction?</div>
<div style><br></div><div style>Thank you,</div><div style><br></div><div style>Nikos</div><div><br></div><div><br></div></div>