source: trunk/src/matlab/rpUnitsFind.cc @ 154

Last change on this file since 154 was 154, checked in by dkearney, 16 years ago

modified matlab bindings and tests.
includes all popular functions available in RpLibrary? and RpUnits
compile and run, but not all tests work as they should
some of these functions will be removed soon because the id field is
no longer a valid argument. path ids should be incorporated in paths from now on.

File size: 2.1 KB
Line 
1/*
2 * ----------------------------------------------------------------------
3 *  INTERFACE: Matlab Rappture Library Source
4 *
5 *    [unitsHandle,err] = rpUnitsFind(unitSymbol)
6 *
7 * ======================================================================
8 *  AUTHOR:  Derrick Kearney, Purdue University
9 *  Copyright (c) 2004-2005  Purdue Research Foundation
10 *
11 *  See the file "license.terms" for information on usage and
12 *  redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13 * ======================================================================
14 */
15
16#include "RpMatlabInterface.h"
17
18/**********************************************************************/
19// METHOD: [unitHandle,err] = rpUnitsFind(unitSymbol)
20/// Search the dictionary of Rappture Units for an instance named 'unitSymbol'
21/**
22 * This method searches the Rappture Units Dictionary for the
23 * RpUnit named 'unitSymbol'. If it is found, its handle is`
24 * returned, as a non-negative integer, to the caller for further use,
25 * else a negative integer is returned signifying no unit of that`
26 * name was found.
27 * If unitSymbol is an empty string, unitHandle will be set to zero and err
28 * will be set to a positive value.
29 * Error code, err=0 on success, anything else is failure.
30 */
31
32void mexFunction(int nlhs, mxArray *plhs[],
33                 int nrhs, const mxArray *prhs[])
34{
35    char *unitSymbol = NULL;
36    const RpUnits* myUnit = NULL;
37    int retHandle = 0;
38    int err = 1;
39
40    /* Check for proper number of arguments. */
41    if (nrhs != 1)
42        mexErrMsgTxt("Two input required.");
43    else if (nlhs > 2)
44        mexErrMsgTxt("Too many output arguments.");
45
46    unitSymbol = getStringInput(prhs[0]);
47
48    /* Call the C subroutine. */
49    if (unitSymbol) {
50        myUnit = RpUnits::find(unitSymbol);
51
52        if (myUnit) {
53            retHandle = storeObject_UnitsStr(myUnit->getUnitsName());
54            if (retHandle) {
55                err = 0;
56            }
57        }
58    }
59
60    /* Set C-style string output_buf to MATLAB mexFunction output*/
61    plhs[0] = mxCreateDoubleScalar(retHandle);
62    plhs[1] = mxCreateDoubleScalar(err);
63
64    return;
65}
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