MATLAB BUILDER JA 2 Podręcznik Użytkownika Pobierz pdf (Strona 139)

Using Class Methods

MWNumericArray A =

new MWNumericArray(AReal, AImag, MWClassID.DOUBLE);

System.out.println("Array A of type " + A.classID() + " = \n" + A);

When run, the example displays this output:

Array A of type double =

1.0e+002 *

0.2420 + 0.0500i -0.0700 + 0.3100i 1.1300 + 0.2700i

Methods to C reate and Destroy an MWNumericArray

In addition to the MWNumericArray constructor, you can use the newInstance

and newSparse methods to construct a numeric array. Thes e two methods

offer b etter performance than using the class constructor. To destroy the

arrays, use either

dispose or disposeArray, inherited from class MWArray.

Method Description

“newInstance”

on page 4-63

Constructs an array with the specified dimensions and

complexity.

“newSparse” on

page 4-66

Constructs a real sparse numeric matrix with the

specified number of rows and columns and maximum

nonzero elements, and initializes the array with the

supplied data.

“dispose” o n

page 4-71

Frees the native MATLAB array contained by this array.

“disposeArray”

on page 4-71

Frees all native M ATLAB arrays contained in the input

object.

newInstance. This method constructs a real or complex array, specifying the

array dimensions, type, and complexity. This is a static method of the class

and thus does no t need to be invoked in reference to an instance of the class.

Note This method offers better performance than using the class constructor.

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MATLAB BUILDER JA 2 Podręcznik Użytkownika Strona 139