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#!/bin/env python
from __future__ import print_function
from Xdmf import *
txt = """<?xml version="1.0" ?>
<!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []>
<Xdmf xmlns:xi="http://www.w3.org/2001/XInclude" Version="2.0">
<Domain>
<Grid Name="Polyvertex" GridType="Uniform">
<Topology TopologyType="Polyvertex"
Dimensions="3"
NodesPerElement="3">
<DataItem Format="XML"
Dimensions="3 3"
NumberType="Float">
0 1 2
4 5 6
8 9 10
</DataItem>
</Topology>
<Geometry Type="XYZ">
<DataItem Format="XML" Dimensions="4 4 3">
0.0 0.0 0.0
1.0 0.0 0.0
1.0 1.0 0.0
0.0 1.0 0.0
0.0 0.0 2.0
1.0 0.0 2.0
1.0 1.0 2.0
0.0 1.0 2.0
0.0 0.0 3.0
1.0 0.0 3.0
1.0 1.0 3.0
0.0 1.0 3.0
0.0 0.0 4.0
1.0 0.0 4.0
1.0 1.0 4.0
0.0 1.0 4.0
</DataItem>
</Geometry>
<Attribute Name="Node Centered Values" Center="Node">
<DataItem Format="XML" Dimensions="4 4">
100 200 300 400
500 600 600 700
800 900 1000 1100
1200 1300 1400 1500
</DataItem>
</Attribute>
<Attribute Name="Cell Centered Values" Center="Cell">
<DataItem Format="XML" Dimensions="3">
100 200 400
</DataItem>
</Attribute>
<Set SetType="Node">
<DataItem NumberType="Int" Dimensions="3" Format="XML">
0 2 4
</DataItem>
<Attribute Name="Node Centered Set Values" Center="Node">
<DataItem Format="XML" Dimensions="3">
100 200 400
</DataItem>
</Attribute>
</Set>
<Set SetType="Face">
<DataItem NumberType="Int" Dimensions="2" Format="XML">
0 1
</DataItem>
<DataItem NumberType="Int" Dimensions="2" Format="XML">
0 0
</DataItem>
</Set>
<Set SetType="Edge">
<DataItem NumberType="Int" Dimensions="4" Format="XML">
0 0 1 1
</DataItem>
<DataItem NumberType="Int" Dimensions="4" Format="XML">
0 0 0 0
</DataItem>
<DataItem NumberType="Int" Dimensions="4" Format="XML">
0 1 0 2
</DataItem>
<Attribute Name="Set Values" Center="Edge">
<DataItem Format="XML" Dimensions="4">
100 200 400 600
</DataItem>
</Attribute>
<Attribute Name="Other Set Values" Center="Edge">
<DataItem Format="XML" Dimensions="3">
1000 2000 4000 6000
</DataItem>
</Attribute>
</Set>
</Grid>
</Domain>
</Xdmf>
"""
d = XdmfDOM()
d.Parse(txt)
dm = d.FindElement('Domain')
gnode = d.FindElement('Grid', 0, dm)
g = XdmfGrid()
g.SetDOM(d)
g.SetElement(gnode)
g.UpdateInformation()
g.Update()
print ('Grid Sets :', g.GetNumberOfSets())
for i in range(g.GetNumberOfSets()) :
s = g.GetSets(i)
print ('Set #', i)
print (' Type: ', s.GetSetTypeAsString())
print (' Size: ', s.GetSize())
s.Update()
ids = s.GetIds()
print (' # Ids : ', ids.GetNumberOfElements())
print (' Ids : ', ids.GetValues())
cellids = s.GetCellIds()
print (' # Cell Ids : ', cellids.GetNumberOfElements())
print (' Cell Ids : ', cellids.GetValues())
faceids = s.GetFaceIds()
print (' # Face Ids : ', faceids.GetNumberOfElements())
print (' Face Ids : ', faceids.GetValues())
print (' #Attributes: ', s.GetNumberOfAttributes())
for j in range(s.GetNumberOfAttributes()) :
a = s.GetAttribute(j)
print (' Attribute #', j)
print (' Attribute values: ', a.GetAttributeTypeAsString())
a.Update()
v = a.GetValues()
print (' Attribute type: ', v.GetValues())
ns = XdmfSet()
ns.SetDOM(d)
ns.SetSetType(XDMF_SET_TYPE_NODE)
a = XdmfArray()
a.SetNumberOfElements(4)
a.SetNumberType(XDMF_INT32_TYPE)
a.SetValues(0, "100 200 300 400")
ns.SetIds(a)
g.Insert(ns)
ns.Build()
print (d.Serialize())
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