1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
3 // File: ParametersPlugin_Parameter.cpp
4 // Created: 23 MArch 2015
7 #include "ParametersPlugin_Parameter.h"
8 #include <ParametersPlugin_PyInterp.h>
10 #include <ModelAPI_AttributeString.h>
11 #include <ModelAPI_ResultParameter.h>
12 #include <ModelAPI_AttributeDouble.h>
13 #include <ModelAPI_Tools.h>
18 ParametersPlugin_Parameter::ParametersPlugin_Parameter()
20 myInterp = new ParametersPlugin_PyInterp();
21 myInterp->initialize();
24 ParametersPlugin_Parameter::~ParametersPlugin_Parameter()
29 void ParametersPlugin_Parameter::initAttributes()
31 data()->addAttribute(ParametersPlugin_Parameter::VARIABLE_ID(),
32 ModelAPI_AttributeString::typeId());
33 data()->addAttribute(ParametersPlugin_Parameter::EXPRESSION_ID(),
34 ModelAPI_AttributeString::typeId());
37 bool ParametersPlugin_Parameter::isInHistory()
42 void ParametersPlugin_Parameter::attributeChanged(const std::string&)
44 ResultParameterPtr aParam = document()->createParameter(data());
46 std::string anExpression = string(ParametersPlugin_Parameter::EXPRESSION_ID())->value();
47 if(anExpression.empty()) {
48 // clear error/result if the expression is empty
52 std::string outErrorMessage;
53 double aValue = evaluate(anExpression, outErrorMessage);
55 std::string aName = string(ParametersPlugin_Parameter::VARIABLE_ID())->value();
56 std::ostringstream sstream;
58 std::string aParamValue = sstream.str();
59 data()->setName(aName);
60 aParam->data()->setName(aName);
62 std::string aStateMsg;
63 if (!outErrorMessage.empty()) {
64 aStateMsg = "Error: " + outErrorMessage;
65 data()->execState(ModelAPI_StateExecFailed);
67 setError(aStateMsg, false);
69 AttributeDoublePtr aValueAttribute = aParam->data()->real(ModelAPI_ResultParameter::VALUE());
70 aValueAttribute->setValue(aValue);
74 void ParametersPlugin_Parameter::execute()
78 double ParametersPlugin_Parameter::evaluate(const std::string& theExpression, std::string& theError)
81 std::list<std::string> anExprParams = myInterp->compile(theExpression);
82 // find expression's params in the model
83 std::list<std::string> aContext;
84 std::list<std::string>::iterator it = anExprParams.begin();
85 for ( ; it != anExprParams.end(); it++) {
87 if (!ModelAPI_Tools::findVariable(*it, aValue)) continue;
89 std::ostringstream sstream;
91 std::string aParamValue = sstream.str();
92 aContext.push_back(*it + "=" + aParamValue);
94 myInterp->extendLocalContext(aContext);
95 double result = myInterp->evaluate(theExpression, theError);
96 myInterp->clearLocalContext();