Fields

`NodeField` - A physical field on nodes

class edelweissfe.fields.nodefield.NodeField(fieldName, dimension, nodeSet)[source]

This class represents a node field. A node field associates every node with multiple entries (e.g., flux and effort) of a field variable. Furthermore, for convencience, it allows to get fast access to values for individual nodes or node sets.

The purpose is to store field data in an efficient, contiguos manner rather than distributing it across all individual nodes.

Example:

NodeField 'Displacement'
   values: {'U' : [[0,0,0],  # Node (1)
                   [1,0,0],  # Node (2)
                   [0,1,0]]} # Node (3)

Spatial representation:

(1) --------- (2)
 | *             *
 |  *+---------+   *+---------+
 |   | [0,0,0] |    | [1,0,0] |
(3)  +---------+    +---------+
  *
   * +---------+
     | [0,1,0] |
     +---------+

Parameters

fieldName (str) – The name of the field.
dimension (int) – The dimension of the field.
nodes – The associated nodes. Only nodes with active fields are considered.
nodeSet (NodeSet) –

Methods

`addEntriesFromOther`(other[, fieldValueEntries])	Add values from another NodeField.
`copyEntriesFromOther`(other[, fieldValueEntries])	Copy values from another NodeField.
`createFieldValueEntry`(name)	Add an empty entry with given name for the field, e.g, 'U' or 'P' for flux or effort entries.
`subset`(subset)	Get a view on a subset of the field.

addEntriesFromOther(other, fieldValueEntries=None)[source]

Add values from another NodeField. If the fields differ, the intersection is considered.

Parameters

subset – The sub NodeField.
fieldValueEntries (list[str]) – The list of entries which should be copied. Default: all entries are copied.

copyEntriesFromOther(other, fieldValueEntries=None)[source]

Copy values from another NodeField. If the fields differ, the intersection is considered.

Parameters

subset – The sub NodeField.
fieldValueEntries (list[str]) – The list of entries which should be copied. Default: all entries are copied.

createFieldValueEntry(name)[source]

Add an empty entry with given name for the field, e.g, ‘U’ or ‘P’ for flux or effort entries.

Parameters: name (str) – The name of the entry.
Returns: The new entry
Return type: np.ndarray

subset(subset)[source]

Get a view on a subset of the field.

Parameters: subset – The subset, e.g., a single :class:`Node, or a :class:`NodeSet or :class:`ElementSet.
Returns: The subset of the present NodeField.
Return type: NodeFieldSubset

class edelweissfe.fields.nodefield.NodeFieldSubset(parentNodeField, subset)[source]

Methods

`addEntriesFromOther`(other[, fieldValueEntries])	Add values from another NodeField.
`copyEntriesFromOther`(other[, fieldValueEntries])	Copy values from another NodeField.
`createFieldValueEntry`(name)	Add an empty entry with given name for the field, e.g, 'U' or 'P' for flux or effort entries.
`subset`(subset)	Get a view on a subset of the field.

createFieldValueEntry(name)[source]

Add an empty entry with given name for the field, e.g, ‘U’ or ‘P’ for flux or effort entries.

Parameters: name – The name of the entry.
Returns: The new entry
Return type: np.ndarray

subset(subset)[source]

Get a view on a subset of the field.

Parameters: subset – The subset, e.g., a single :class:`Node, or a :class:`NodeSet or :class:`ElementSet.
Returns: The subset of the present NodeField.
Return type: NodeFieldSubset

Fields

NodeField - A physical field on nodes

`NodeField` - A physical field on nodes