core.xdmf Namespace Reference

A set of classes for constructing XDMF hierarchies. More...

Classes
class	XdmfItem
	The base class for all XDMF XML elements. More...
class	DataItem
	An abc for an XDMF DataItem (HDF5 data set). More...
class	Attribute
	An abc for an XDMF Attribute (e.g., nodal or gauss point results). More...
class	Topology
	An abc for an XDMF Topology. More...
class	Grid
	An abc for an XDMF Grid (a mesh with results data). More...
class	Time
	An XDMF Time (a single time step value). More...
class	Geometry
	An XDMF Geometry (nodal coordinates). More...
class	TopologyCellType
	A helper class for identifying the cell/element topology type. More...
class	UniformMeshTopology
	An XDMF Topology for a single element or condition type. More...
class	HDF5UniformDataItem
	An XDMF DataItem for an HDF5 data set. More...
class	NodalData
	An XDMF Attribute for nodal solution step or data value container data. More...
class	GeometrycalObjectData
	An XDMF Attribute for element data value container data. More...
class	ElementData
	An XDMF Attribute for element data value container data. More...
class	ConditionData
class	SpatialGrid
	A collection of uniform XDMF Grid objects with results data. More...
class	TemporalGrid
	A collection of XDMF Grid objects associated with time steps. More...
class	UniformGrid
	An XDMF Grid for a single element or condition. More...
class	Domain
	An XDMF Domain (computational domain). More...
class	Xdmf
	The XML root element of the XDMF model. More...

Detailed Description

A set of classes for constructing XDMF hierarchies.

These classes are used to create an XDMF file which describes the Kratos model stored in HDF5 such that third party tools such as Paraview or VisIt can visualize the data.

For example, consider the following HDF5 file structure:

./mesh.h5 /NodalCoordinates /Element2D3N/Connectivities ./results.h5 /Nodal/PRESSURE

The XDMF file for viewing the results can be constructed with the following steps:

mesh_file = h5py.File("mesh.h5", "r")

results_file = h5py.File("results.h5", "r")

geom = Geometry(HDF5UniformDataItem(mesh_file["/NodalCoordinates"])) topology = UniformMeshTopology( TopologyCellType(2, 3), # for Element2D3N HDF5UniformDataItem(mesh_file["/Element2D3N/Connectivities"])) grid = UniformGrid("Element2D3N", geom, topology) nodal_pressure = NodalData("PRESSURE", HDF5UniformDataItem(results_file["/Nodal/PRESSURE"])) grid.add_attribute(nodal_pressure) root = Xdmf(Domain(grid)).create_xml_element() ElementTree(root).write('kratos.xdmf')

See also http://www.xdmf.org/index.php/XDMF_Model_and_Format.

BSD license: HDF5Application/license.txt