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fet  5.18.0
Public Member Functions | Public Attributes
ConstraintStudentsMaxHoursContinuously Class Reference

#include <timeconstraint.h>

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List of all members.

Public Member Functions

 ConstraintStudentsMaxHoursContinuously ()
 ConstraintStudentsMaxHoursContinuously (double wp, int maxnh)
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 maxHoursContinuously
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 1672 of file timeconstraint.h.


Constructor & Destructor Documentation

Definition at line 7163 of file timeconstraint.cpp.


Member Function Documentation

Implements TimeConstraint.

Definition at line 7365 of file timeconstraint.cpp.

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

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bool ConstraintStudentsMaxHoursContinuously::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 7170 of file timeconstraint.cpp.

{
       Q_UNUSED(parent);
       Q_UNUSED(r);
       
       return true;
}
double ConstraintStudentsMaxHoursContinuously::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 7241 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 nbroken;

       nbroken=0;
       for(int i=0; i<r.nInternalSubgroups; i++){
              for(int d=0; d<r.nDaysPerWeek; d++){
                     int nc=0;
                     for(int h=0; h<r.nHoursPerDay; h++){
                            if(subgroupsMatrix[i][d][h]>0)
                                   nc++;
                            else{
                                   if(nc>this->maxHoursContinuously){
                                          nbroken++;

                                          if(conflictsString!=NULL){
                                                 QString s=(tr(
                                                  "Time constraint students max %1 hours continuously broken for subgroup %2, on day %3, length=%4.")
                                                  .arg(CustomFETString::number(this->maxHoursContinuously))
                                                  .arg(r.internalSubgroupsList[i]->name)
                                                  .arg(r.daysOfTheWeek[d])
                                                  .arg(nc)
                                                  )
                                                  +
                                                  " "
                                                  +
                                                  (tr("This increases the conflicts total by %1").arg(CustomFETString::number(weightPercentage/100)));
                                                 
                                                 dl.append(s);
                                                 cl.append(weightPercentage/100);
                            
                                                 *conflictsString+= s+"\n";
                                          }
                                   }
                            
                                   nc=0;
                            }
                     }

                     if(nc>this->maxHoursContinuously){
                            nbroken++;

                            if(conflictsString!=NULL){
                                   QString s=(tr(
                                    "Time constraint students max %1 hours continuously broken for subgroup %2, on day %3, length=%4.")
                                    .arg(CustomFETString::number(this->maxHoursContinuously))
                                    .arg(r.internalSubgroupsList[i]->name)
                                    .arg(r.daysOfTheWeek[d])
                                    .arg(nc)
                                    )
                                    +
                                    " "
                                    +
                                    (tr("This increases the conflicts total by %1").arg(CustomFETString::number(weightPercentage/100)));
                                                 
                                   dl.append(s);
                                   cl.append(weightPercentage/100);
                            
                                   *conflictsString+= s+"\n";
                            }
                     }
              }
       }

       if(weightPercentage==100)   
              assert(nbroken==0);
       return weightPercentage/100 * nbroken;
}

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Returns a small description string for this constraint.

Implements TimeConstraint.

Definition at line 7200 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 max hours continuously");s+=", ";
       s+=tr("WP:%1\%", "Weight percentage").arg(CustomFETString::number(this->weightPercentage));s+=", ";
       s+=tr("MH:%1", "Max hours (continuously)").arg(this->maxHoursContinuously);

       return begin+s+end;
}

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Returns a detailed description string for this constraint.

Implements TimeConstraint.

Definition at line 7220 of file timeconstraint.cpp.

{
       Q_UNUSED(r);

       QString s=tr("Time constraint");s+="\n";
       s+=tr("All students must respect the maximum number of hours continuously");s+="\n";
       s+=tr("Weight (percentage)=%1\%").arg(CustomFETString::number(this->weightPercentage));s+="\n";
       s+=tr("Maximum hours continuously=%1").arg(this->maxHoursContinuously);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 7184 of file timeconstraint.cpp.

{
       Q_UNUSED(r);

       QString s="<ConstraintStudentsMaxHoursContinuously>\n";
       s+="   <Weight_Percentage>"+CustomFETString::number(this->weightPercentage)+"</Weight_Percentage>\n";
       if(this->maxHoursContinuously>=0)
              s+="   <Maximum_Hours_Continuously>"+CustomFETString::number(this->maxHoursContinuously)+"</Maximum_Hours_Continuously>\n";
       else
              assert(0);
       s+="   <Active>"+trueFalse(active)+"</Active>\n";
       s+="   <Comments>"+protect(comments)+"</Comments>\n";
       s+="</ConstraintStudentsMaxHoursContinuously>\n";
       return s;
}

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Implements TimeConstraint.

Definition at line 7178 of file timeconstraint.cpp.

{
       Q_UNUSED(r);
       return false;
}

Implements TimeConstraint.

Definition at line 7357 of file timeconstraint.cpp.

{
       if(maxHoursContinuously>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 7320 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 7342 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 7349 of file timeconstraint.cpp.

{
       Q_UNUSED(r);
       Q_UNUSED(s);

       return true;
}

Returns true if this constraint is related to this subject.

Implements TimeConstraint.

Definition at line 7335 of file timeconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this teacher.

Implements TimeConstraint.

Definition at line 7328 of file timeconstraint.cpp.

{
       Q_UNUSED(t);

       return false;
}

Implements TimeConstraint.

Definition at line 7372 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.

Definition at line 1676 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: