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fet  5.18.0
Public Member Functions | Public Attributes
ConstraintStudentsSetMaxHoursDaily Class Reference

#include <timeconstraint.h>

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List of all members.

Public Member Functions

 ConstraintStudentsSetMaxHoursDaily ()
 ConstraintStudentsSetMaxHoursDaily (double wp, int maxnh, QString s)
bool computeInternalStructure (QWidget *parent, Rules &r)
 Computes the internal structure for this constraint.
bool hasInactiveActivities (Rules &r)
QString getXmlDescription (Rules &r)
 Returns an XML description of this constraint.
QString getDescription (Rules &r)
 Returns a small description string for this constraint.
QString getDetailedDescription (Rules &r)
 Returns a detailed description string for this constraint.
double fitness (Solution &c, Rules &r, QList< double > &cl, QList< QString > &dl, QString *conflictsString=NULL)
 The function that calculates the fitness of a solution, according to this constraint.
bool isRelatedToActivity (Rules &r, Activity *a)
 Returns true if this constraint is related to this activity.
bool isRelatedToTeacher (Teacher *t)
 Returns true if this constraint is related to this teacher.
bool isRelatedToSubject (Subject *s)
 Returns true if this constraint is related to this subject.
bool isRelatedToActivityTag (ActivityTag *s)
 Returns true if this constraint is related to this activity tag.
bool isRelatedToStudentsSet (Rules &r, StudentsSet *s)
 Returns true if this constraint is related to this students set.
bool hasWrongDayOrHour (Rules &r)
bool canRepairWrongDayOrHour (Rules &r)
bool repairWrongDayOrHour (Rules &r)

Public Attributes

int maxHoursDaily
QString students
 The students set name.
QList< int > iSubgroupsList
 The number of subgroups.
double weightPercentage
 The percentage weight of this constraint, 100% compulsory, 0% non-compulsory.
bool active
QString comments
int type
 Specifies the type of this constraint (using the above constants).

Detailed Description

Definition at line 1617 of file timeconstraint.h.


Constructor & Destructor Documentation

Definition at line 6905 of file timeconstraint.cpp.

Definition at line 6912 of file timeconstraint.cpp.


Member Function Documentation

Implements TimeConstraint.

Definition at line 7136 of file timeconstraint.cpp.

{
       assert(hasWrongDayOrHour(r));
       
       return true;
}

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bool ConstraintStudentsSetMaxHoursDaily::computeInternalStructure ( QWidget *  parent,
Rules r 
) [virtual]

Computes the internal structure for this constraint.

It returns false if the constraint is an activity related one and it depends on only inactive activities.

Implements TimeConstraint.

Definition at line 6983 of file timeconstraint.cpp.

{
       StudentsSet* ss=r.searchAugmentedStudentsSet(this->students);
       
       if(ss==NULL){
              QMessageBox::warning(parent, tr("FET warning"),
               tr("Constraint students set max hours daily is wrong because it refers to inexistent students set."
               " Please correct it (removing it might be a solution). Please report potential bug. Constraint is:\n%1").arg(this->getDetailedDescription(r)));
               
              return false;
       }      

       assert(ss);

       this->iSubgroupsList.clear();
       if(ss->type==STUDENTS_SUBGROUP){
              int tmp;
              tmp=((StudentsSubgroup*)ss)->indexInInternalSubgroupsList;
              assert(tmp>=0);
              assert(tmp<r.nInternalSubgroups);
              if(!this->iSubgroupsList.contains(tmp))
                     this->iSubgroupsList.append(tmp);
       }
       else if(ss->type==STUDENTS_GROUP){
              StudentsGroup* stg=(StudentsGroup*)ss;
              for(int i=0; i<stg->subgroupsList.size(); i++){
                     StudentsSubgroup* sts=stg->subgroupsList[i];
                     int tmp;
                     tmp=sts->indexInInternalSubgroupsList;
                     assert(tmp>=0);
                     assert(tmp<r.nInternalSubgroups);
                     if(!this->iSubgroupsList.contains(tmp))
                            this->iSubgroupsList.append(tmp);
              }
       }
       else if(ss->type==STUDENTS_YEAR){
              StudentsYear* sty=(StudentsYear*)ss;
              for(int i=0; i<sty->groupsList.size(); i++){
                     StudentsGroup* stg=sty->groupsList[i];
                     for(int j=0; j<stg->subgroupsList.size(); j++){
                            StudentsSubgroup* sts=stg->subgroupsList[j];
                            int tmp;
                            tmp=sts->indexInInternalSubgroupsList;
                            assert(tmp>=0);
                            assert(tmp<r.nInternalSubgroups);
                            if(!this->iSubgroupsList.contains(tmp))
                                   this->iSubgroupsList.append(tmp);
                     }
              }
       }
       else
              assert(0);
              
       return true;
}

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double ConstraintStudentsSetMaxHoursDaily::fitness ( Solution c,
Rules r,
QList< double > &  cl,
QList< QString > &  dl,
QString *  conflictsString = NULL 
) [virtual]

The function that calculates the fitness of a solution, according to this constraint.

We need the rules to compute this fitness factor. If conflictsString!=NULL, it will be initialized with a text explaining where this restriction is broken.

Implements TimeConstraint.

Definition at line 7039 of file timeconstraint.cpp.

{
       //if the matrices subgroupsMatrix and teachersMatrix are already calculated, do not calculate them again!
       if(!c.teachersMatrixReady || !c.subgroupsMatrixReady){
              c.teachersMatrixReady=true;
              c.subgroupsMatrixReady=true;
              subgroups_conflicts = c.getSubgroupsMatrix(r, subgroupsMatrix);
              teachers_conflicts = c.getTeachersMatrix(r, teachersMatrix);

              c.changedForMatrixCalculation=false;
       }

       int tmp;
       int too_much;

       assert(this->maxHoursDaily>=0);

       if(1){
              too_much=0;
              for(int sg=0; sg<this->iSubgroupsList.count(); sg++){
                     int i=iSubgroupsList.at(sg);
                     for(int j=0; j<r.nDaysPerWeek; j++){
                            tmp=0;
                            for(int k=0; k<r.nHoursPerDay; k++){
                                   //Here we want to see if we have a weekly activity or a 2 weeks activity
                                   //We don't do tmp+=subgroupsMatrix[i][j][k] because we already counted this as a hard hitness
                                   if(subgroupsMatrix[i][j][k]>=1)
                                          tmp++;
                            }
                            if(this->maxHoursDaily>=0 && tmp > this->maxHoursDaily){ //we would like no more than max_hours_daily hours per day.
                                   too_much += 1; //tmp - this->maxHoursDaily;

                                   if(conflictsString!=NULL){
                                          QString s=tr("Time constraint students set max hours daily broken for subgroup: %1, day: %2, lenght=%3, conflicts increase=%4")
                                           .arg(r.internalSubgroupsList[i]->name)
                                           .arg(r.daysOfTheWeek[j])
                                           .arg(CustomFETString::number(tmp))
                                           .arg(CustomFETString::number( 1 *weightPercentage/100));
                                           
                                          dl.append(s);
                                          cl.append( 1 *weightPercentage/100);
                                   
                                          *conflictsString+= s+"\n";
                                   }
                            }
                     }
              }
       }
       
       assert(too_much>=0);
       if(weightPercentage==100)
              assert(too_much==0);
       return too_much * weightPercentage / 100.0;
}

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Returns a small description string for this constraint.

Implements TimeConstraint.

Definition at line 6940 of file timeconstraint.cpp.

{
       Q_UNUSED(r);

       QString begin=QString("");
       if(!active)
              begin="X - ";
              
       QString end=QString("");
       if(!comments.isEmpty())
              end=", "+tr("C: %1", "Comments").arg(comments);
              
       QString s;
       s+=tr("Students set max hours daily");s+=", ";
       s+=tr("WP:%1\%", "Weight percentage").arg(CustomFETString::number(this->weightPercentage));s+=", ";
       s+=tr("St:%1", "Students (set)").arg(this->students); s+=", ";
       s+=tr("MH:%1", "Max hours (daily)").arg(this->maxHoursDaily);

       return begin+s+end;
}

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Returns a detailed description string for this constraint.

Implements TimeConstraint.

Definition at line 6961 of file timeconstraint.cpp.

{
       Q_UNUSED(r);

       QString s=tr("Time constraint");s+="\n";
       s+=tr("A students set must respect the maximum number of hours daily");s+="\n";
       s+=tr("Weight (percentage)=%1\%").arg(CustomFETString::number(this->weightPercentage));s+="\n";
       s+=tr("Students set=%1").arg(this->students);s+="\n";
       s+=tr("Maximum hours daily=%1").arg(this->maxHoursDaily);s+="\n";

       if(!active){
              s+=tr("Active=%1", "Refers to a constraint").arg(yesNoTranslated(active));
              s+="\n";
       }
       if(!comments.isEmpty()){
              s+=tr("Comments=%1").arg(comments);
              s+="\n";
       }

       return s;
}

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Returns an XML description of this constraint.

Implements TimeConstraint.

Definition at line 6926 of file timeconstraint.cpp.

{
       Q_UNUSED(r);

       QString s="<ConstraintStudentsSetMaxHoursDaily>\n";
       s+="   <Weight_Percentage>"+CustomFETString::number(this->weightPercentage)+"</Weight_Percentage>\n";
       s+="   <Maximum_Hours_Daily>"+CustomFETString::number(this->maxHoursDaily)+"</Maximum_Hours_Daily>\n";
       s+="   <Students>"+protect(this->students)+"</Students>\n";
       s+="   <Active>"+trueFalse(active)+"</Active>\n";
       s+="   <Comments>"+protect(comments)+"</Comments>\n";
       s+="</ConstraintStudentsSetMaxHoursDaily>\n";
       return s;
}

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Implements TimeConstraint.

Definition at line 6920 of file timeconstraint.cpp.

{
       Q_UNUSED(r);
       return false;
}

Implements TimeConstraint.

Definition at line 7128 of file timeconstraint.cpp.

{
       if(maxHoursDaily>r.nHoursPerDay)
              return true;
              
       return false;
}

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Returns true if this constraint is related to this activity.

Implements TimeConstraint.

Definition at line 7094 of file timeconstraint.cpp.

{
       Q_UNUSED(r);
       Q_UNUSED(a);

       return false;
}

Returns true if this constraint is related to this activity tag.

Implements TimeConstraint.

Definition at line 7116 of file timeconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this students set.

Implements TimeConstraint.

Definition at line 7123 of file timeconstraint.cpp.

{
       return r.setsShareStudents(this->students, s->name);
}

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Returns true if this constraint is related to this subject.

Implements TimeConstraint.

Definition at line 7109 of file timeconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this teacher.

Implements TimeConstraint.

Definition at line 7102 of file timeconstraint.cpp.

{
       Q_UNUSED(t);

       return false;
}

Implements TimeConstraint.

Definition at line 7143 of file timeconstraint.cpp.

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Member Data Documentation

bool TimeConstraint::active [inherited]

Definition at line 146 of file timeconstraint.h.

QString TimeConstraint::comments [inherited]

Definition at line 148 of file timeconstraint.h.

The number of subgroups.

The subgroups

Definition at line 1639 of file timeconstraint.h.

Definition at line 1621 of file timeconstraint.h.

The students set name.

Definition at line 1626 of file timeconstraint.h.

int TimeConstraint::type [inherited]

Specifies the type of this constraint (using the above constants).

Definition at line 153 of file timeconstraint.h.

The percentage weight of this constraint, 100% compulsory, 0% non-compulsory.

Definition at line 144 of file timeconstraint.h.


The documentation for this class was generated from the following files: