MATLAB BUILDER JA 2 Podręcznik Użytkownika Pobierz pdf (Strona 158)

4 Using MWArra y Classes

System.out.println(A.toString());

Here is the complex array that is displayed:

2.0000 + 6.0000i 3.0000 + 5.0000i 4.0000 + 14.0000i

8.0000 + 7.0000i 9.0000 + 1.0000i 10.0000 + 23.0000i

14.0000 + 1.0000i 15.0000 + 1.0000i 16.0000 + 9.0000i

Now, use get and getImag to read the real and imaginary parts of the element

at index (

2, 3):

int[] index = {2, 3};

System.out.println("The real part of A(2,3) = " +

A.get(index));

System.out.println("The imaginary part of A(2,3) = " +

A.getImag(index));

When run, the example displays this output:

The real part of A(2,3) = 10.0

The imaginary part of A(2,3) = 23.0

getImagData. This method returns a one-dimensional MWNumericArray

containing a copy of the imaginary data in the underlying M ATLAB a rray.

The prototype for the

getImagData method is as follows:

public Object getImagData()

getImagData

returns the array of elements in column-wise order. The

elements are converted according to default conversion rules.

Example — Getting Data from a Complex Array

Using the same array as in the example for “getImag” on page 4 -81, get the

entire contents of the complex array:

int[] index = {2, 3};

double[] x;

4-82

1 2 ... 153 154 155 156 157 158 159 160 161 162 163 ... 291 292

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MATLAB BUILDER JA 2 Podręcznik Użytkownika Strona 158