class MPointArray

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public members:

	MPointArray ()
	MPointArray ( const MPointArray & other )
	MPointArray ( const MPoint points[], unsigned int count )
	MPointArray ( const double points[][4], unsigned int count )
	MPointArray ( const float points[][4], unsigned int count )
	MPointArray ( unsigned int initialSize, const MPoint &initialValue = MPoint::origin )
	~MPointArray ()
const MPoint &	operator[] ( unsigned int index ) const
MPoint &	operator[] ( unsigned int index )
MPointArray &	operator= ( const MPointArray & other )
MStatus	set ( const MPoint & element, unsigned int index)
MStatus	set ( unsigned int index, double x, double y, double z=0, double w=1)
MStatus	set ( double element[4], unsigned int index)
MStatus	set ( float element[4], unsigned int index)
MStatus	setLength ( unsigned int length )
unsigned int	length () const
MStatus	remove ( unsigned int index )
MStatus	insert ( const MPoint & element, unsigned int index )
MStatus	append ( const MPoint & element )
MStatus	append ( double x, double y, double z=0, double w=1 )
MStatus	copy ( const MPointArray & source )
MStatus	clear ()
MStatus	get ( double [][4] ) const
MStatus	get ( float [][4] ) const
void	setSizeIncrement ( unsigned int newIncrement )
unsigned int	sizeIncrement () const
friend ostream &	operator<< (ostream &os, const MPointArray &array)

Documentation

Description

This class implements an array of MPoints. 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.

Functions

MPointArray:: MPointArray ()

Description

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

MPointArray:: MPointArray ( const MPointArray & other )

Description

Copy constructor.

Arguments

• other the array with which to initialize this instance

MPointArray:: MPointArray ( const MPoint src[], unsigned int count )

Description

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

Arguments

• src an array of MPoints
• count the number of elements in the src array

MPointArray:: MPointArray ( const double src[][4], unsigned int count )

Description

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

Arguments

• src a C++ array of double arrays of length four
• count the number of elements in the array

MPointArray:: MPointArray ( const float src[][4], unsigned int count )

Description

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

Arguments

• src a C++ array of double arrays of length four
• count the number of elements in the array

MPointArray:: MPointArray ( unsigned int initialSize, const MPoint &initialValue )

Description

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

Arguments

• initialSize the initial size of the array
• initialValue the initial value of each element

MPointArray:: ~MPointArray ()

Description

The class destructor.

const MPoint & MPointArray:: operator[] ( unsigned int index ) const

Description

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

Arguments

• index the index of the element whose value is to be returned

Return Value

• the value of the indicated element.

MPoint & MPointArray:: operator[] ( unsigned int index )

Description

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.

Arguments

• index the index of the desired element

Return Value

• a reference to the indicated element

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

Description

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, then this array will also become a reference rather than doing a full copy.

Arguments

• other the array being copied

Return Value

• a reference to this array

MStatus MPointArray:: set ( const MPoint & element, unsigned int index)

Description

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

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

Arguments

• element the new value for the indicated element
• index the index of the element that is to be set to the the new value

Return Value

• MS::kSuccess if the value was set successfully and MS::kFailure otherwise

MStatus MPointArray:: set ( unsigned int index, double x, double y, double z, double w)

Description

Sets the value of the indicated element to the indicated values. The x component of the element is set to x, the y component to y, the z component to z, and the w component to w.

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

Arguments

• index the index of the element that is to be set to the the new value
• x the new value for the x component
• y the new value for the y component
• z the new value for the z component,defaulted to 0
• w the new value for the w component,defaulted to 1

Return Value

• MS::kSuccess if the value was set successfully and MS::kFailure otherwise

MStatus MPointArray:: set ( double val[4], unsigned int index)

Description

Sets the value of the indicated element to the indicated value. The x component of the element is set to val[0], the y component to val[1], the z component to val[2], and the w component to val[3].

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

Arguments

• val the new value for the indicated element
• index the index of the element that is to be set to the the new value

Return Value

• MS::kSuccess if the value was set successfully and MS::kFailure otherwise

MStatus MPointArray:: set ( float val[4], unsigned int index)

Description

Sets the value of the indicated element to the indicated value. The x component of the element is set to val[0], the y component to val[1], the z component to val[2], and the w component to val[3].

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

Arguments

• val the new value for the indicated element
• index the index of the element that is to be set to the the new value

Return Value

• MS::kSuccess if the value was set successfully and MS::kFailure otherwise

MStatus MPointArray:: setLength ( unsigned int length )

Description

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).

Arguments

• size the new size of the array

unsigned int MPointArray:: length () const

Description

Returns the number of elements in the instance.

Return Value

• the number of elements in the instance

MStatus MPointArray:: remove ( unsigned int index )

Description

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

Arguments

• index index of the element to be removed

Return Value

• MS::kSuccess if the remove was successful and MS::kFailure otherwise

MStatus MPointArray:: insert ( const MPoint & element, unsigned int index )

Description

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.

Arguments

• element the new value to insert into the array
• index the index of the element to set to the the new value

Return Value

• MS::kSuccess if the insert was successful and MS::kFailure otherwise

MStatus MPointArray:: append ( const MPoint & element )

Description

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.

Arguments

• element the value for the new last element

Return Value

• MS::kSuccess if the append was successful and MS::kFailure otherwise

MStatus MPointArray:: append ( double x, double y, double z, double w )

Description

Adds a new element to the end of the array. The appended element has the indicated values for its x,y,z and w components. The x component of the element is set to x, the y component to y, the z component to z, and the w component to w.

If the array cannot be expanded in size by 1 element, then the append will fail and the existing array will remain unchanged.

Arguments

• x the value for the x component
• y the value for the y component
• z the value for the z component, defaulted to 0
• w the value for the w component, defaulted to 1

Return Value

• MS::kSuccess if the append was successful and MS::kFailure otherwise

MStatus MPointArray:: copy ( const MPointArray & source )

Description

Copy the contents of the source array to this array.

Arguments

• source array to copy from

Return Value

• MS::kSuccess if the copy was successful and MS::kFailure otherwise

MStatus MPointArray:: clear ()

Description

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.

Return Value

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

MStatus MPointArray:: get ( double dest[][4] ) const

Description

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

Arguments

• array the array to populate

Return Value

• MS::kSuccess if the array argument is a non-zero pointer and MS::kFailure otherwise

MStatus MPointArray:: get ( float dest[][4] ) const

Description

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

Arguments

• array the array to populate

Return Value

• MS::kSuccess if the array argument is a non-zero pointer and MS::kFailure otherwise

void MPointArray:: setSizeIncrement ( unsigned int newIncrement )

Description

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

Arguments

• newIncrement the new increment

unsigned int MPointArray:: sizeIncrement () const

Description

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

Arguments

• array the array to populate

Return Value

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

ostream& operator<< (ostream &os, const MPointArray &array)

Description

Print the contents of the given MPointArray on the given ostream. The format used is [0: [x, y, z, w], 1: [x, y, z, w], 2: [x, y, z, w], ...].

Arguments

• os the ostream to print to
• array the MPointArray whose value is to be printed

Return Value

• the ostream reference, s, provided as the first parameter.

This class has no child classes.