| 1 | /* |
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| 2 | * ---------------------------------------------------------------------- |
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| 3 | * INTERFACE: Matlab Rappture Library Source |
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| 4 | * |
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| 5 | * [retStr,result] = |
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| 6 | * rpUnitsConvertObjStr(fromObjHandle, toObjHandle, value, showUnits) |
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| 7 | * |
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| 8 | * ====================================================================== |
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| 9 | * AUTHOR: Derrick Kearney, Purdue University |
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| 10 | * Copyright (c) 2004-2005 Purdue Research Foundation |
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| 11 | * |
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| 12 | * See the file "license.terms" for information on usage and |
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| 13 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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| 14 | * ====================================================================== |
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| 15 | */ |
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| 16 | |
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| 17 | #include "RpMatlabInterface.h" |
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| 18 | |
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| 19 | /**********************************************************************/ |
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| 20 | // METHOD: [retStr,err] = rpUnitsConvertObjStr(fromObjHandle,toObjHandle,value,showUnits) |
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| 21 | /// Convert between RpUnits return a string value with or without units |
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| 22 | /** |
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| 23 | * Convert @var{value} from the units represented by the RpUnits object |
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| 24 | * @var{fromObjHandle} to the units represented by the RpUnits object |
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| 25 | * @var{toObjHandle}. If @var{showUnits} is set to 0, no units will be |
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| 26 | * displayed in @var{retStr}, else units are displayed.` |
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| 27 | * On success, the converted value is returned through |
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| 28 | * @var{retStr}. The second return value, @var{err}, specifies whether` |
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| 29 | * there was an error during conversion. |
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| 30 | * Error code, err=0 on success, anything else is failure. |
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| 31 | */ |
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| 32 | |
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| 33 | void mexFunction(int nlhs, mxArray *plhs[], |
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| 34 | int nrhs, const mxArray *prhs[]) |
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| 35 | { |
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| 36 | int result = 0; |
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| 37 | std::string retStr = ""; |
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| 38 | int fromObjHandle = 0; |
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| 39 | int toObjHandle = 0; |
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| 40 | const RpUnits* fromObj = NULL; |
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| 41 | const RpUnits* toObj = NULL; |
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| 42 | double value = 0; |
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| 43 | int showUnits = 0; |
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| 44 | |
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| 45 | /* Check for proper number of arguments. */ |
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| 46 | if (nrhs != 4) |
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| 47 | mexErrMsgTxt("Two input required."); |
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| 48 | else if (nlhs > 2) |
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| 49 | mexErrMsgTxt("Too many output arguments."); |
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| 50 | |
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| 51 | fromObjHandle = getIntInput(prhs[0]); |
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| 52 | toObjHandle = getIntInput(prhs[1]); |
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| 53 | value = getDoubleInput(prhs[2]); |
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| 54 | showUnits = getIntInput(prhs[3]); |
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| 55 | |
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| 56 | // grab the RpUnits objects from the dictionary |
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| 57 | fromObj = getObject_UnitsStr(fromObjHandle); |
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| 58 | toObj = getObject_UnitsStr(toObjHandle); |
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| 59 | |
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| 60 | /* Call the C subroutine. */ |
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| 61 | if (fromObj && toObj) { |
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| 62 | retStr = fromObj->convert(toObj,value,showUnits,&result); |
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| 63 | } |
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| 64 | |
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| 65 | /* Set C-style string output_buf to MATLAB mexFunction output*/ |
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| 66 | plhs[0] = mxCreateString(retStr.c_str()); |
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| 67 | plhs[1] = mxCreateDoubleScalar((double)result); |
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| 68 | |
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| 69 | return; |
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| 70 | } |
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