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fet  5.18.0
Public Member Functions | Public Attributes
ConstraintTeacherMaxBuildingChangesPerWeek Class Reference

#include <spaceconstraint.h>

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List of all members.

Public Member Functions

 ConstraintTeacherMaxBuildingChangesPerWeek ()
 ConstraintTeacherMaxBuildingChangesPerWeek (double wp, QString tc, int mc)
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 (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 isRelatedToRoom (Room *r)
 Returns true if this constraint is related to this room.
bool hasWrongDayOrHour (Rules &r)
bool canRepairWrongDayOrHour (Rules &r)
bool repairWrongDayOrHour (Rules &r)

Public Attributes

int teacher_ID
int maxBuildingChangesPerWeek
QString teacherName
double weightPercentage
 The weight (percentage) of this constraint.
bool active
QString comments
int type
 Specifies the type of this constraint (using the above constants).

Detailed Description

Definition at line 1263 of file spaceconstraint.h.


Constructor & Destructor Documentation


Member Function Documentation

Implements SpaceConstraint.

Definition at line 6020 of file spaceconstraint.cpp.

{
       assert(hasWrongDayOrHour(r));

       return true;
}

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

Computes the internal structure for this constraint.

Implements SpaceConstraint.

Definition at line 5805 of file spaceconstraint.cpp.

{
       this->teacher_ID=r.searchTeacher(this->teacherName);
       
       if(this->teacher_ID<0){
              QMessageBox::warning(parent, tr("FET warning"),
               tr("Constraint teacher max building changes per week is wrong because it refers to inexistent teacher."
               " Please correct it (removing it might be a solution). Please report potential bug. Constraint is:\n%1").arg(this->getDetailedDescription(r)));
                                                                
              return false;
       }      

       return true;
}

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double ConstraintTeacherMaxBuildingChangesPerWeek::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. We need also the allocation of the activities on days and hours. If conflictsString!=NULL, it will be initialized with a text explaining where this restriction is broken.

Implements SpaceConstraint.

Definition at line 5892 of file spaceconstraint.cpp.

{
       //if the matrix roomsMatrix is already calculated, do not calculate it again!
       if(!c.roomsMatrixReady){
              c.roomsMatrixReady=true;
              rooms_conflicts = c.getRoomsMatrix(r, roomsMatrix);

              c.changedForMatrixCalculation=false;
       }

       int nbroken=0;
       
       int tch=this->teacher_ID;

       //Better, less memory
       Teacher* tchpointer=r.internalTeachersList[tch];
       int crtBuildingsTimetable[MAX_DAYS_PER_WEEK][MAX_HOURS_PER_DAY];
       for(int d2=0; d2<r.nDaysPerWeek; d2++)
              for(int h2=0; h2<r.nHoursPerDay; h2++)
                     crtBuildingsTimetable[d2][h2]=-1;
                     
       foreach(int ai, tchpointer->activitiesForTeacher)
              if(c.times[ai]!=UNALLOCATED_TIME){
                     int d2=c.times[ai]%r.nDaysPerWeek;
                     int h2=c.times[ai]/r.nDaysPerWeek;
                     
                     for(int dur=0; dur<r.internalActivitiesList[ai].duration; dur++){
                            assert(h2+dur<r.nHoursPerDay);
                            assert(crtBuildingsTimetable[d2][h2+dur]==-1);
                            if(c.rooms[ai]!=UNSPECIFIED_ROOM && c.rooms[ai]!=UNALLOCATED_SPACE){
                                   assert(c.rooms[ai]>=0 && c.rooms[ai]<r.nInternalRooms);
                                   crtBuildingsTimetable[d2][h2+dur]=r.internalRoomsList[c.rooms[ai]]->buildingIndex;
                            }
                     }
              }
       
       int n_changes=0;

       for(int d2=0; d2<r.nDaysPerWeek; d2++){
              int crt_building=-1;
              for(int h2=0; h2<r.nHoursPerDay; h2++){
                     if(crtBuildingsTimetable[d2][h2]!=-1){
                            if(crt_building!=crtBuildingsTimetable[d2][h2]){
                                   if(crt_building!=-1)
                                          n_changes++;
                                   crt_building=crtBuildingsTimetable[d2][h2];
                            }
                     }
              }
       }
                                   
       if(n_changes>this->maxBuildingChangesPerWeek){
              nbroken+=n_changes-this->maxBuildingChangesPerWeek;
       
              if(conflictsString!=NULL){
                     QString s=tr("Space constraint teacher max building changes per week broken for teacher=%1")
                            .arg(this->teacherName);
                     s += ". ";
                     s += tr("This increases the conflicts total by %1").arg(CustomFETString::number(weightPercentage/100* (n_changes-maxBuildingChangesPerWeek)));
                     
                     dl.append(s);
                     cl.append(weightPercentage/100* (n_changes-maxBuildingChangesPerWeek));
              
                     *conflictsString+=s+"\n";
              }
       }
       
       if(this->weightPercentage==100)
              assert(nbroken==0);

       return weightPercentage/100 * nbroken;
}

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Returns a small description string for this constraint.

Implements SpaceConstraint.

Definition at line 5843 of file spaceconstraint.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=tr("Teacher max building changes per week"); s+=", ";

       s+=tr("WP:%1\%", "Weight percentage").arg(CustomFETString::number(this->weightPercentage));s+=", ";
       
       s+=tr("T:%1", "T means teacher").arg(this->teacherName);s+=", ";

       s+=tr("MC:%1", "MC means max changes").arg(this->maxBuildingChangesPerWeek);

       return begin+s+end;
}

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Returns a detailed description string for this constraint.

Implements SpaceConstraint.

Definition at line 5866 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);

       QString s=tr("Space constraint"); s+="\n";

       s+=tr("Teacher maximum building changes per week"); s+="\n";

       s+=tr("Weight (percentage)=%1\%").arg(CustomFETString::number(this->weightPercentage));s+="\n";

       s+=tr("Teacher=%1").arg(this->teacherName);s+="\n";

       s+=tr("Maximum building changes per week=%1").arg(this->maxBuildingChangesPerWeek);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 SpaceConstraint.

Definition at line 5827 of file spaceconstraint.cpp.

                                                                             {
       Q_UNUSED(r);

       QString s="<ConstraintTeacherMaxBuildingChangesPerWeek>\n";

       s+="   <Weight_Percentage>"+CustomFETString::number(weightPercentage)+"</Weight_Percentage>\n";
       s+="   <Teacher>"+protect(this->teacherName)+"</Teacher>\n";
       s+="   <Max_Building_Changes_Per_Week>"+CustomFETString::number(this->maxBuildingChangesPerWeek)+"</Max_Building_Changes_Per_Week>\n";
              
       s+="   <Active>"+trueFalse(active)+"</Active>\n";
       s+="   <Comments>"+protect(comments)+"</Comments>\n";
       s+="</ConstraintTeacherMaxBuildingChangesPerWeek>\n";

       return s;
}

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Implements SpaceConstraint.

Definition at line 5820 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 6012 of file spaceconstraint.cpp.

{
       if(maxBuildingChangesPerWeek>r.nDaysPerWeek*r.nHoursPerDay)
              return true;
       
       return false;
}

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Returns true if this constraint is related to this activity.

Implements SpaceConstraint.

Definition at line 5971 of file spaceconstraint.cpp.

{
       Q_UNUSED(a);

       return false;
}

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

Implements SpaceConstraint.

Definition at line 5990 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this room.

Implements SpaceConstraint.

Definition at line 6005 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       
       return false;
}

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

Implements SpaceConstraint.

Definition at line 5997 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       Q_UNUSED(s);
       
       return false;
}

Returns true if this constraint is related to this subject.

Implements SpaceConstraint.

Definition at line 5983 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);
       
       return false;
}

Returns true if this constraint is related to this teacher.

Implements SpaceConstraint.

Definition at line 5978 of file spaceconstraint.cpp.

{
       return this->teacherName==t->name;
}

Implements SpaceConstraint.

Definition at line 6027 of file spaceconstraint.cpp.

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Member Data Documentation

bool SpaceConstraint::active [inherited]

Definition at line 102 of file spaceconstraint.h.

QString SpaceConstraint::comments [inherited]

Definition at line 104 of file spaceconstraint.h.

Definition at line 1272 of file spaceconstraint.h.

Definition at line 1268 of file spaceconstraint.h.

Definition at line 1274 of file spaceconstraint.h.

int SpaceConstraint::type [inherited]

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

Definition at line 109 of file spaceconstraint.h.

The weight (percentage) of this constraint.

Definition at line 100 of file spaceconstraint.h.


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