Available functionalities

This page tries to list most of the available functionalities of the MEDCoupling library. It is by no mean exhaustive, but gives an overview of the capabilities of the core library.

Direct operations on fields

Field creation

• From scratch: New

• Copy: clone*, deepCopy

Partial modifications

• Creation: New, setMesh, setArray*
  Example 1: Standard build of a tensor field on cells with no time attached
  Example 2: Standard build of a scalar field on nodes with no time attached
  Example 3: Standard build of a vector field on cells with one time attached and no time interval
  Example 4: Standard build of a vector field on nodes defined on a time interval with a constant value during this interval
  
• Copy
  • buildNewTimeReprFromThis
  Example: Getting a field copy with different time discretization
• Subparts
  • buildSubPart*
  Example: Creation of a sub part of a field
  • keepSelectedComponents, setSelectedComponents

And also:

• Description: setName

• I/O: cf. MEDLoader

Local arithmetic

Operations on scalars

• Affectation
  • From a constant: =
  • From an expression: applyFunc* applyLin fillFromAnalytic*
    Example 1: Changing a field using an expression
    Example 2: Changing a field using an expression
    Example 3: Changing a field using an expression
    Example 4: Changing a field using an expression
    Example 5: Creating a field using an expression
    Example 6: Creating a field using an expression
    Example 7: Creating a field using an expression
    Example 8: Filling a field using a C function
    Example 9: Changing a field by applying a C function
• Addition
  • + += AddFields
  Example: Some operations that can be carried out on fields on cells
• Subtraction
  • - -= SubstractFields
  • substractInPlaceDM
  Example: Subtracting field on different meshes
• Multiplication
  • * *= MultiplyFields
  Example: Some operations that can be carried out on fields on cells
• Division:
  • / /= DivideFields
  Example: Some operations that can be carried out on fields on cells
• Power: ^ ^= PowFields

Operations on vectors or second order tensors

• Contracted product: doublyContractedProduct
• Determinant: determinant
• Eigenvalues and eigenvectors: eigenValues, eigenVectors
• Tensor inversion: inverse
• Trace: trace
• Deviator: deviator
• Norms: norm*

Interpolation

A full section is dedicated to interpolation, as this is far from being a trivial matter. See: Interpolation

Global operations

• Spatial extrema: MaxFields, MinFields
  Example: Getting maximal and minimal fields
• Spatial mean: getAverageValue

• Temporal extrema
  • getMaxValue*
  • getMinValue*

Others

• Renumbering a mesh: renumber*
  Example 1: Permuting a field on nodes
  Example 2: Permuting a field on cells
• Merge non overlapping fields: MergeFields
  Example: Concatenating fields