MATLAB BUILDER JA 2 Guide de l'utilisateur télécharger pdf (Page 58)

3 Programming

Object[] y = null;

try

{

x = new Object[vals.length];

for (int i = 0; i < vals.length; i++)

x[i] = new MWNumericArray(vals[i], MWClassID.DOUBLE);

cls = new myclass();

y = cls.mysum(1, x);

return ((MWNumericArray)y[0]).getDouble(1);

}

finally

{

MWArray.disposeArray(x);

MWArray.disposeArray(y);

if (cls != null)

cls.dispose();

}

This version of getsum takes an array of Object as input and converts each

valuetoa

double array. The l ist of double arrays is then passed to the mysum

function, w here it calculates the total sum of each input array.

Code Fragment: Passing a Variable Number of Outputs

When present, varargout arguments are handled in the same way that

varargin arguments are handled. Consider the following M-function:

function varargout = randvectors

% RANDVECTORS Returns a list of random vectors.

% VARARGOUT = RANDVECTORS Returns a list of random

% vectors such that the length of the ith vector = i.

% This file is used as an example for the MATLAB

% Builder for Java product.

for i=1:nargout

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MATLAB BUILDER JA 2 Guide de l'utilisateur Page 58