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fet  5.18.0
Public Member Functions | Public Attributes
ConstraintStudentsActivityTagMaxHoursDaily Class Reference

#include <timeconstraint.h>

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List of all members.

Public Member Functions

 ConstraintStudentsActivityTagMaxHoursDaily ()
 ConstraintStudentsActivityTagMaxHoursDaily (double wp, int maxnh, const QString &activityTag)
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 activityTagName
int activityTagIndex
QList< int > canonicalSubgroupsList
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 3394 of file timeconstraint.h.


Constructor & Destructor Documentation

ConstraintStudentsActivityTagMaxHoursDaily::ConstraintStudentsActivityTagMaxHoursDaily ( double  wp,
int  maxnh,
const QString &  activityTag 
)

Definition at line 16285 of file timeconstraint.cpp.


Member Function Documentation

Implements TimeConstraint.

Definition at line 16501 of file timeconstraint.cpp.

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

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bool ConstraintStudentsActivityTagMaxHoursDaily::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 16293 of file timeconstraint.cpp.

{
       Q_UNUSED(parent);

       this->activityTagIndex=r.searchActivityTag(this->activityTagName);
       assert(this->activityTagIndex>=0);
       
       this->canonicalSubgroupsList.clear();
       for(int i=0; i<r.nInternalSubgroups; i++){
              bool found=false;
       
              StudentsSubgroup* sbg=r.internalSubgroupsList[i];
              foreach(int actIndex, sbg->activitiesForSubgroup){
                     if(r.internalActivitiesList[actIndex].iActivityTagsSet.contains(this->activityTagIndex)){
                            found=true;
                            break;
                     }
              }
              
              if(found)
                     this->canonicalSubgroupsList.append(i);
       }

       return true;
}

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double ConstraintStudentsActivityTagMaxHoursDaily::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 16388 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;
       
       foreach(int i, this->canonicalSubgroupsList){
              StudentsSubgroup* sbg=r.internalSubgroupsList[i];
              int crtSubgroupTimetableActivityTag[MAX_DAYS_PER_WEEK][MAX_HOURS_PER_DAY];
              for(int d=0; d<r.nDaysPerWeek; d++)
                     for(int h=0; h<r.nHoursPerDay; h++)
                            crtSubgroupTimetableActivityTag[d][h]=-1;
              foreach(int ai, sbg->activitiesForSubgroup)if(c.times[ai]!=UNALLOCATED_TIME){
                     int d=c.times[ai]%r.nDaysPerWeek;
                     int h=c.times[ai]/r.nDaysPerWeek;
                     for(int dur=0; dur<r.internalActivitiesList[ai].duration; dur++){
                            assert(h+dur<r.nHoursPerDay);
                            assert(crtSubgroupTimetableActivityTag[d][h+dur]==-1);
                            if(r.internalActivitiesList[ai].iActivityTagsSet.contains(this->activityTagIndex))
                                   crtSubgroupTimetableActivityTag[d][h+dur]=this->activityTagIndex;
                     }
              }

              for(int d=0; d<r.nDaysPerWeek; d++){
                     int nd=0;
                     for(int h=0; h<r.nHoursPerDay; h++)
                            if(crtSubgroupTimetableActivityTag[d][h]==this->activityTagIndex)
                                   nd++;
                            
                     if(nd>this->maxHoursDaily){
                            nbroken++;

                            if(conflictsString!=NULL){
                                   QString s=(tr(
                                    "Time constraint students, activity tag %1, max %2 hours daily, broken for subgroup %3, on day %4, length=%5.")
                                    .arg(this->activityTagName)
                                    .arg(CustomFETString::number(this->maxHoursDaily))
                                    .arg(r.internalSubgroupsList[i]->name)
                                    .arg(r.daysOfTheWeek[d])
                                    .arg(nd)
                                    )
                                    +
                                    " "
                                    +
                                    (tr("This increases the conflicts total by %1").arg(CustomFETString::number(weightPercentage/100.0)));
                                   
                                   dl.append(s);
                                   cl.append(weightPercentage/100);
                            
                                   *conflictsString+= s+"\n";
                            }
                     }
              }
       }
       
       if(weightPercentage==100.0)
              assert(nbroken==0);
       return weightPercentage/100.0 * nbroken;
}

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Returns a small description string for this constraint.

Implements TimeConstraint.

Definition at line 16344 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+="! ";
       s+=tr("Students for activity tag %1 have max %2 hours daily")
              .arg(this->activityTagName).arg(this->maxHoursDaily); s+=", ";
       s+=tr("WP:%1\%", "Weight percentage").arg(CustomFETString::number(this->weightPercentage));

       return begin+s+end;
}

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Returns a detailed description string for this constraint.

Implements TimeConstraint.

Definition at line 16365 of file timeconstraint.cpp.

{
       Q_UNUSED(r);

       QString s=tr("Time constraint");s+="\n";
       s+=tr("(not perfect)", "It refers to a not perfect constraint"); s+="\n";
       s+=tr("All students, for an activity tag, must respect the maximum number of hours daily"); s+="\n";
       s+=tr("Weight (percentage)=%1\%").arg(CustomFETString::number(this->weightPercentage));s+="\n";
       s+=tr("Activity tag=%1").arg(this->activityTagName);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 16325 of file timeconstraint.cpp.

{
       Q_UNUSED(r);

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

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Implements TimeConstraint.

Definition at line 16319 of file timeconstraint.cpp.

{
       Q_UNUSED(r);
       return false;
}

Implements TimeConstraint.

Definition at line 16493 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 16458 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 16480 of file timeconstraint.cpp.

{
       return s->name==this->activityTagName;
}

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

Implements TimeConstraint.

Definition at line 16485 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 16473 of file timeconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this teacher.

Implements TimeConstraint.

Definition at line 16466 of file timeconstraint.cpp.

{
       Q_UNUSED(t);

       return false;
}

Implements TimeConstraint.

Definition at line 16508 of file timeconstraint.cpp.

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Member Data Documentation

bool TimeConstraint::active [inherited]

Definition at line 146 of file timeconstraint.h.

Definition at line 3402 of file timeconstraint.h.

Definition at line 3400 of file timeconstraint.h.

Definition at line 3404 of file timeconstraint.h.

QString TimeConstraint::comments [inherited]

Definition at line 148 of file timeconstraint.h.

Definition at line 3398 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: