MDoubleArray Class Reference
[OpenMaya - API module for common classes]

#include <MDoubleArray.h>

List of all members.

Detailed Description

Array of doubles data type.

This class implements an array of doubles. Common convenience functions are available, and the implementation is compatible with the internal Maya implementation so that it can be passed efficiently between plugins and internal maya data structures.

Methods that query the array are threadsafe. Writing to different array elements at the same time with the set() method is threadsafe. Methods that modify the array length, namely append(), insert(), remove() and setLength() are not threadsafe.

Examples:

blindDataShader.cpp, closestPointOnCurveCmd.cpp, closestPointOnNurbsSurfaceCmd.cpp, clothPaintAttrCmd.cpp, clusterWeightFunction.cpp, dynExprField.cpp, dynExprField.h, exportSkinClusterDataCmd.cpp, fullLoftNode.cpp, hairCollisionSolver.cpp, helixCmd.cpp, helixTool.cpp, intersectOnNurbsSurfaceCmd.cpp, motionTraceCmd.cpp, moveNumericTool.cpp, particleAttrNode.cpp, particlePathsCmd.cpp, pfxInfoCmd.cpp, pointOnMeshCmd.cpp, shellNode.cpp, simpleEmitter.cpp, simpleEmitter.h, simpleFluidEmitter.cpp, simpleLoftNode.cpp, simpleSolverNode.cpp, surfaceCreate.cpp, surfaceCreateCmd.cpp, torusField.cpp, torusField.h, and XmlGeometryCache.cpp.


Public Member Functions
  MDoubleArray ()
  MDoubleArray (const MDoubleArray &other)
  MDoubleArray (const double src[], unsigned int count)
  MDoubleArray (const float src[], unsigned int count)
  MDoubleArray (unsigned int initialSize, double initialValue=0)
  ~MDoubleArray ()
MDoubleArray &  operator= (const MDoubleArray &other)
MStatus  set (double element, unsigned int index)
MStatus  set (float element, unsigned int index)
MStatus  setLength (unsigned int length)
unsigned int  length () const
MStatus  remove (unsigned int index)
MStatus  insert (double element, unsigned int index)
MStatus  append (double element)
MStatus  copy (const MDoubleArray &source)
MStatus  clear ()
MStatus  get (double[]) const
MStatus  get (float[]) const
void  setSizeIncrement (unsigned int newIncrement)
unsigned int  sizeIncrement () const
double &  operator[] (unsigned int index)
  NO SCRIPT SUPPORT.
double  operator[] (unsigned int index) const
  NO SCRIPT SUPPORT.

Friends
OPENMAYA_EXPORT std::ostream &  operator<< (std::ostream &os, const MDoubleArray &array)
  NO SCRIPT SUPPORT.

Constructor & Destructor Documentation

MDoubleArray::MDoubleArray (  ) 

Default constructor. The instance is set to contain no elements.

MDoubleArray::MDoubleArray ( const MDoubleArray &  other  ) 

Copy Constructor.

Parameters:
[in]  other  the array with which to initialize this instance

MDoubleArray::MDoubleArray ( const double  src[],
unsigned int  count  
)

Create a new array of doubles and initialize it with the given double elements.

Parameters:
[in]  src  a C++ array of doubles
[in]  count  the number of elements in the src array

MDoubleArray::MDoubleArray ( const float  src[],
unsigned int  count  
)

Create a new array of doubles and initialize it with the given float elements.

Parameters:
[in]  src  a C++ array of floats
[in]  count  the number of elements in the src array

MDoubleArray::MDoubleArray ( unsigned int  initialSize,
double  initialValue = 0  
)

Create a new array of doubles of a specified size and initialize all the elements with the given initial value.

Parameters:
[in]  initialSize  the initial size of the array
[in]  initialValue  the initial value of each element

MDoubleArray::~MDoubleArray (  ) 

The class destructor.

Member Function Documentation

MDoubleArray & MDoubleArray::operator= ( const MDoubleArray &  other  ) 

Assignment operator copies all of the elements of the other array into this one.

If the other array was returned as a reference to internal data (eg MFnDoubleArrayData::array), then this array will also become a reference rather than doing a full copy.

Parameters:
[in]  other  the array being copied
Returns:
A reference to this array

MStatus MDoubleArray::set ( double  element,
unsigned int  index  
)

Sets the value of the indicated element to the indicated double value.

NOTE: This method does not grow the array if the index is out of bounds. Only a valid index should be used.

Parameters:
[in]  element  the new value for the indicated element
[in]  index  the index of the element that is to be set to the the new value
Returns:
MS::kSuccess if the value was set successfully and MS::kFailure otherwise
Examples:
simpleSolverNode.cpp.

MStatus MDoubleArray::set ( float  element,
unsigned int  index  
)

Sets the value of the indicated element to the indicated float value.

NOTE: This method does not grow the array if the index is out of bounds. Only a valid index should be used.

Parameters:
[in]  element  the new value for the indicated element
[in]  index  the index of the element that is to be set to the the new value
Returns:
MS::kSuccess if the value was set successfully and MS::kFailure otherwise

MStatus MDoubleArray::setLength ( unsigned int  length  ) 

Set the length of the array. This will grow and shrink the array as desired. Elements that are grown have uninitialized values, while those which are shrunk will lose the data contained in the deleted elements (ie. it will release the memory).

Parameters:
[in]  length  the new size of the array
Examples:
particleAttrNode.cpp, simpleFluidEmitter.cpp, and XmlGeometryCache.cpp.

unsigned int MDoubleArray::length (  )  const

Returns the number of elements in the instance.

Returns:
The number of elements in the instance
Examples:
blindDataShader.cpp, dynExprField.cpp, moveNumericTool.cpp, particleAttrNode.cpp, pfxInfoCmd.cpp, simpleFluidEmitter.cpp, and XmlGeometryCache.cpp.

MStatus MDoubleArray::remove ( unsigned int  index  ) 

Remove the array element at the given index. All array elements following the removed element are shifted toward the first element.

Parameters:
[in]  index  index of the element to be removed
Returns:
MS::kSuccess if the remove was successful and MS::kFailure otherwise

MStatus MDoubleArray::insert ( double  element,
unsigned int  index  
)

Inserts a new value into the array at the given index. The initial element at that index, and all following elements, are shifted towards the last. If the array cannot be expanded in size by 1 element, then the insert will fail and the existing array will remain unchanged.

Parameters:
[in]  element  the new value to insert into the array
[in]  index  the index of the element to set to the the new value
Returns:
MS::kSuccess if the insert was successful and MS::kFailure otherwise
Examples:
particlePathsCmd.cpp.

MStatus MDoubleArray::append ( double  element  ) 

Adds a new element to the end of the array. If the array cannot be expanded in size by 1 element, then the append will fail and the existing array will remain unchanged.

Parameters:
[in]  element  the value for the new last element
Returns:
MS::kSuccess if the append was successful and MS::kFailure otherwise
Examples:
closestPointOnCurveCmd.cpp, clusterWeightFunction.cpp, fullLoftNode.cpp, helixCmd.cpp, helixTool.cpp, motionTraceCmd.cpp, particlePathsCmd.cpp, pointOnMeshCmd.cpp, simpleEmitter.cpp, simpleLoftNode.cpp, surfaceCreate.cpp, and surfaceCreateCmd.cpp.

MStatus MDoubleArray::copy ( const MDoubleArray &  source  ) 

Copy the contents of the source array to this array.

Parameters:
[in]  source  array to copy from
Returns:
MS::kSuccess if the copy was successful and MS::kFailure otherwise

MStatus MDoubleArray::clear (  ) 

Clear the contents of the array. After this operation the length method will return 0. This does not change the amount of memory allocated to the array, only the number of valid elements in it.

MStatus MDoubleArray::get ( double  array[]  )  const

Copy the elements of the array into the given C++ array of doubles. No checking is done to ensure that the destination C++ array of doubles is large enough to hold all the elements of the instance.

Parameters:
[out]  array  the array to populate
Returns:
MS::kSuccess if the array argument is a non-zero pointer and MS::kFailure otherwise

MStatus MDoubleArray::get ( float  array[]  )  const

Copy the elements of the array into the given C++ array of floats. No checking is done to ensure that the destination C++ array of floats is large enough to hold all the elements of the instance.

Parameters:
[out]  array  the array to populate
Returns:
MS::kSuccess if the array argument is a non-zero pointer and MS::kFailure otherwise

void MDoubleArray::setSizeIncrement ( unsigned int  newIncrement  ) 

Set the size by which the array will be expanded whenever expansion is necessary.

Parameters:
[in]  newIncrement  the new increment

unsigned int MDoubleArray::sizeIncrement (  )  const

Return the size by which the array will be expanded whenever expansion is necessary.

Returns:
true if the array argument is a non-zero pointer and false otherwise

double & MDoubleArray::operator[] ( unsigned int  index  ) 

NO SCRIPT SUPPORT.

Index operator allowing assignment to an element of the array. Returns a reference to the element at the given index. No range checking is done - valid indices are 0 to length()-1.

Parameters:
[in]  index  the index of the desired element
Returns:
A reference to the indicated element

double MDoubleArray::operator[] ( unsigned int  index  )  const

NO SCRIPT SUPPORT.

Index operator. Returns the value of the element at the given index. No range checking is done - valid indices are 0 to length()-1.

Parameters:
[in]  index  the index of the element whose value is to be returned
Returns:
The value of the indicated element.

Friends And Related Function Documentation

OPENMAYA_EXPORT std::ostream& operator<< ( std::ostream &  os,
const MDoubleArray &  array  
) [friend]

NO SCRIPT SUPPORT.

Print the contents of the given MDoubleArray on the given ostream. The format used is [1.1, 2.2, 3.3, ... 9.9].

Parameters:
[in]  os  the ostream to print to
[in]  array  the MDoubleArray whose value is to be printed
Returns:
The ostream reference, s, provided as the first parameter.
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