This reference page is linked to from the following overview topics: Using the Maya Python API.

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.

#include <MDoubleArray.h>

List of all members.

Public Member Functions
	MDoubleArray ()
	Default constructor.
	MDoubleArray (const MDoubleArray &other)
	Copy Constructor.
	MDoubleArray (const double src[], unsigned int count)
	Create a new array of doubles and initialize it with the given double elements.
	MDoubleArray (const float src[], unsigned int count)
	Create a new array of doubles and initialize it with the given float elements.
	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.
	~MDoubleArray ()
	The class destructor.
MDoubleArray &	operator= (const MDoubleArray &other)
	Assignment operator copies all of the elements of the other array into this one.
MStatus	set (double element, unsigned int index)
	Sets the value of the indicated element to the indicated double value.
MStatus	set (float element, unsigned int index)
	Sets the value of the indicated element to the indicated float value.
MStatus	setLength (unsigned int length)
	Set the length of the array.
unsigned int	length () const
	Returns the number of elements in the instance.
MStatus	remove (unsigned int index)
	Remove the array element at the given index.
MStatus	insert (double element, unsigned int index)
	Inserts a new value into the array at the given index.
MStatus	append (double element)
	Adds a new element to the end of the array.
MStatus	copy (const MDoubleArray &source)
	Copy the contents of the source array to this array.
MStatus	clear ()
	Clear the contents of the array.
MStatus	get (double[]) const
	Copy the elements of the array into the given C++ array of doubles.
MStatus	get (float[]) const
	Copy the elements of the array into the given C++ array of floats.
void	setSizeIncrement (unsigned int newIncrement)
	Set the size by which the array will be expanded whenever expansion is necessary.
unsigned int	sizeIncrement () const
	Return the size by which the array will be expanded whenever expansion is necessary.
double &	operator[] (unsigned int index)
	NO SCRIPT SUPPORT.
double	operator[] (unsigned int index) const
	NO SCRIPT SUPPORT.
Static Public Member Functions
static const char *	className ()
	Returns the name of this class.
Friends
OPENMAYA_EXPORT std::ostream &	operator<< (std::ostream &os, const MDoubleArray &array)
	NO SCRIPT SUPPORT.

Constructor & Destructor Documentation

MDoubleArray ( )

Default constructor.

The instance is set to contain no elements.

MDoubleArray ( const MDoubleArray & other )

Copy Constructor.

Parameters:

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

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	(	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	(	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

Member Function Documentation

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 set	(	double	element,
		unsigned int	index
	)

Search for all occurrences

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 set	(	float	element,
		unsigned int	index
	)

Search for all occurrences

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 setLength ( unsigned int length )

Search for all occurrences

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 length ( ) const

Search for all occurrences

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 remove ( unsigned int index )

Search for all occurrences

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 insert	(	double	element,
		unsigned int	index
	)

Search for all occurrences

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 append ( double element )

Search for all occurrences

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 copy ( const MDoubleArray & source )

Search for all occurrences

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 clear ( )

Search for all occurrences

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.

MS::kSuccess if the operation is successful and MS::kFailure otherwise

MStatus get ( double array[] ) const

Search for all occurrences

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 get ( float array[] ) const

Search for all occurrences

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 setSizeIncrement ( unsigned int newIncrement )

Search for all occurrences

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

Parameters:

[in] newIncrement the new increment

unsigned int sizeIncrement ( ) const

Search for all occurrences

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

Returns:: The size increment.

double & 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 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.

const char * className ( ) [static]

Search for all occurrences

Returns the name of this class.

Returns:: The name of this class.

Friends And Related Function Documentation

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

NO SCRIPT SUPPORT.

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.

MDoubleArray Class Reference

OpenMaya - API module for common classes

Detailed Description

Public Member Functions

Static Public Member Functions

Friends

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation