KratosMultiphysics
KRATOS Multiphysics (Kratos) is a framework for building parallel, multi-disciplinary simulation software, aiming at modularity, extensibility, and high performance. Kratos is written in C++, and counts with an extensive Python interface.
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Kratos::UnarySliceExpression Class Reference

Unary slice expression used to represent a slicing lazy expression of a given input expression. More...

#include <unary_slice_expression.h>

Inheritance diagram for Kratos::UnarySliceExpression:
Collaboration diagram for Kratos::UnarySliceExpression:

Public Types

Type definitions
using IndexType = std::size_t
 
- Public Types inherited from Kratos::Expression
using Pointer = Kratos::intrusive_ptr< Expression >
 
using ConstPointer = Kratos::intrusive_ptr< const Expression >
 
using IndexType = std::size_t
 
using value_type = double
 
using size_type = IndexType
 
using const_iterator = ExpressionIterator
 

Public Member Functions

Life cycle
 UnarySliceExpression (Expression::ConstPointer pExpression, const IndexType Offset, const IndexType Stride)
 
- Public Member Functions inherited from Kratos::Expression
 Expression (const IndexType NumberOfEntities)
 
virtual ~Expression ()=default
 
IndexType NumberOfEntities () const
 Get the maximum number of entities allowed for this expression. More...
 
IndexType GetItemComponentCount () const
 Get the Local Size of the expression. More...
 
IndexType size () const
 
const_iterator begin () const
 
const_iterator end () const
 
const_iterator cbegin () const
 
const_iterator cend () const
 

Protected Attributes

Private member variables
const Expression::ConstPointer mpSourceExpression
 
const IndexType mOffset
 
const IndexType mStride
 
const IndexType mSourceStride
 

Public operations

double Evaluate (const IndexType EntityIndex, const IndexType EntityDataBeginIndex, const IndexType ComponentIndex) const override
 Evalute the expression for the given entity data start index and component index and returns the value. More...
 
const std::vector< IndexTypeGetItemShape () const override
 Get the Shape of the expression. More...
 
IndexType GetMaxDepth () const override
 Get the Max Depth of the lazy expression tree. More...
 
std::string Info () const override
 
static Expression::Pointer Create (Expression::ConstPointer pExpression, const IndexType Offset, const IndexType Stride)
 

Detailed Description

Unary slice expression used to represent a slicing lazy expression of a given input expression.

This expression slices the input expression's entity values with an offset and stride (length of components).

Member Typedef Documentation

◆ IndexType

Constructor & Destructor Documentation

◆ UnarySliceExpression()

Kratos::UnarySliceExpression::UnarySliceExpression ( Expression::ConstPointer  pExpression,
const IndexType  Offset,
const IndexType  Stride 
)

Member Function Documentation

◆ Create()

Expression::Pointer Kratos::UnarySliceExpression::Create ( Expression::ConstPointer  pExpression,
const IndexType  Offset,
const IndexType  Stride 
)
static

◆ Evaluate()

double Kratos::UnarySliceExpression::Evaluate ( const IndexType  EntityIndex,
const IndexType  EntityDataBeginIndex,
const IndexType  ComponentIndex 
) const
overridevirtual

Evalute the expression for the given entity data start index and component index and returns the value.

Parameters
EntityIndexIndex of the entity.
EntityDataBeginIndexIndex at which entity data starts.
ComponentIndexComponent index.
Returns
double Evaluated expression.
Todo:
Move to private.

Implements Kratos::Expression.

◆ GetItemShape()

const std::vector< std::size_t > Kratos::UnarySliceExpression::GetItemShape ( ) const
overridevirtual

Get the Shape of the expression.

Returns
const std::vector<IndexType> Size of each dimension is in the vector elements.

Implements Kratos::Expression.

◆ GetMaxDepth()

std::size_t Kratos::UnarySliceExpression::GetMaxDepth ( ) const
overridevirtual

Get the Max Depth of the lazy expression tree.

Returns the maximum depth of the lazy expression tree.

Warning
This is a recursive computation, hence this should not be done repeatedly unless necessary.
Returns
IndexType Max depth of the lazy expression tree.

Implements Kratos::Expression.

◆ Info()

std::string Kratos::UnarySliceExpression::Info ( ) const
overridevirtual

Implements Kratos::Expression.

Member Data Documentation

◆ mOffset

const IndexType Kratos::UnarySliceExpression::mOffset
protected

◆ mpSourceExpression

const Expression::ConstPointer Kratos::UnarySliceExpression::mpSourceExpression
protected

◆ mSourceStride

const IndexType Kratos::UnarySliceExpression::mSourceStride
protected

◆ mStride

const IndexType Kratos::UnarySliceExpression::mStride
protected

The documentation for this class was generated from the following files: