/** \ingroup Experiment
* Initialize the ParStaircase with n internal staircase, and randomize them in the lower-upper interval as specified by other two parameters.
* @param params ParametersLoader object just initialized with the staircase properties, for a correct settings of the staircase parameters the parameters files loaded by params, should contain the following items (all starting with s to specify that are special parameters relative to the Parstaircase :
\code
sStairNumber: 4
sStairStartStates: 10,5,-5,-10
sStairAscending: 0,0,1,1
sStairCorrectAnswers: 3,3,3,3
sStairMaxreversals: 10,10,10,10
sStairMaxTrials: 100,100,100,100
sStairPositiveStep: 0.25,10,5,0.1
sStairPositiveStepAfterFirstReversal: 0.01
sStairNegativeStep: 1
\endcode
**/
void ParStaircase::init( ParametersLoader ¶ms )
{
this->currentStaircaseIndex=0;
this-> init(str2num<int>(params.find("sStairNumber")));
this->setStartState(str2num<double>(params.find("sStairStartStates"),","));
this->setAscending(str2num<bool>(params.find("sStairAscending"),","));
this->setMaxReversals(str2num<int>(params.find("sStairMaxReversals"),","));
this->setMaxTrials(str2num<int>(params.find("sStairMaxTrials"),","));
this->setCorrectAnswers(str2num<int>(params.find("sStairCorrectAnswers"),","));
// Handle the case where the user want to specify different staircase steps for every single staircase, they are colon separated list of comma separated numbers
if ( params.find("sStairPositiveStep").find(";")!=string::npos ) // a colon is found
{
// then try to stringify its content
string content = params.find("sStairPositiveStep");
//removeAllWhite(content);
vector<string> stairstepsstrings;
util::tokenizeString(content,stairstepsstrings,";");
vector<string> negstepsstrings;
util::tokenizeString(params.find("sStairNegativeStep"),negstepsstrings,";");
vector<double> negSteps(negstepsstrings.size());
for (unsigned int i=0; i<negstepsstrings.size(); i++)
negSteps.at(i) = util::str2num<double>(negstepsstrings.at(i));
unsigned int n = str2num<int>(params.find("sStairNumber"));
if ( stairstepsstrings.size()!=n || negstepsstrings.size()!=n )
{ cerr << "Error here, number of list of staircase positive and negative steps size must equal the staircase number!" << endl;
cerr << "Be sure to avoid spaces between the colon \";\"" << endl;
exit(0);
}
for ( unsigned int i=0; i<stairstepsstrings.size(); i++)
{
vector<double> steps = str2num<double>(stairstepsstrings.at(i),",");
this->setStairStep(i,steps,negSteps);
}
}
else
{
vector<double> posSteps = str2num<double>(params.find("sStairPositiveStep"),",");
vector<double> negSteps = str2num<double>(params.find("sStairNegativeStep"),",");
for ( int i=0; i< str2num<int>(params.find("sStairNumber")) ; i++ )
this -> setStairStep( i,posSteps, negSteps);
}
double lowerClamp=-1e30,upperClamp=1e30;
int maxClampHits=3;
if ( params.exists("sStairClampLower") )
lowerClamp = str2num<double>(params.find("sStairClampLower"));
if ( params.exists("sStairClampUpper") )
upperClamp = str2num<double>(params.find("sStairClampUpper"));
if ( params.exists("sStairMaxClampHits") )
maxClampHits= str2num<int>(params.find("sStairMaxClampHits") );
this->setClamp(lowerClamp,upperClamp,maxClampHits);
}
void initVariables()
{ trial.init(parameters);
// module factor: 0 -> 1 -> 2
module.init(1,false);
module.addFactor("Phase",str2num<int>(parameters.find("Phase"),","));
block = module.getNext();
if ( parameters.exists("StimulusDensity") )
stimulusDensity = str2num<double>(parameters.find("StimulusDensity"));
else
cerr << "Stimulus density parameters not found, set to 0.025..." << endl;
adaptStimHeight = str2num<double>(parameters.find("AdaptStimulusHeight"));
adaptStimRadius = str2num<double>(parameters.find("AdaptStimulusRadius"));
// crea la lista degli offset in adaptation dati start, end e numero steps
int nTrials = str2num<int>(parameters.find("AdaptTrials"));
double adaptOffsetStart = str2num<double>(parameters.find("AdaptOffsetStart"));
double adaptOffsetEnd = str2num<double>(parameters.find("AdaptOffsetEnd"));
int adaptOffsetNSteps = str2num<int>(parameters.find("AdaptOffsetSteps"));
if ( adaptOffsetNSteps > nTrials )
{ cerr << "too much steps, they must be at max " << nTrials << endl;
cin.ignore(1e6,'\n');
exit(0);
}
double adaptOffsetDelta = (adaptOffsetEnd - adaptOffsetStart)/adaptOffsetNSteps;
for (int i=0; i<= adaptOffsetNSteps ; i++)
adaptOffsets.push_back(i*adaptOffsetDelta+adaptOffsetStart);
while ( adaptOffsets.size() != nTrials+2 ) //+2 così non rogna nel markersFile
adaptOffsets.push_back(adaptOffsetEnd );
testStimHeight = str2num<double>(parameters.find("TestStimulusHeight"));
ballRadius = str2num<double>(parameters.find("BallRadius"));
initStimulus(adaptStimHeight,adaptStimRadius*2,adaptStimRadius*2);
hapticRodCenter = Vector3d(0,0,focalDistance);
indexInside[0]=indexInside[1]=false;
globalTimer.start();
frameTimer.start();
//trial.print(cerr);
}