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fet  5.18.0
Public Member Functions | Public Attributes
ConstraintTeachersMaxBuildingChangesPerDay Class Reference

#include <spaceconstraint.h>

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List of all members.

Public Member Functions

 ConstraintTeachersMaxBuildingChangesPerDay ()
 ConstraintTeachersMaxBuildingChangesPerDay (double wp, 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 maxBuildingChangesPerDay
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 1223 of file spaceconstraint.h.


Constructor & Destructor Documentation


Member Function Documentation

Implements SpaceConstraint.

Definition at line 5771 of file spaceconstraint.cpp.

{
       assert(hasWrongDayOrHour(r));

       return true;
}

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

Computes the internal structure for this constraint.

Implements SpaceConstraint.

Definition at line 5566 of file spaceconstraint.cpp.

{
       Q_UNUSED(parent);
       Q_UNUSED(r);

       return true;
}
double ConstraintTeachersMaxBuildingChangesPerDay::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 5641 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;
       
       for(int tch=0; tch<r.nInternalTeachers; tch++){
              //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;
                                   }
                            }
                     }

              for(int d2=0; d2<r.nDaysPerWeek; d2++){
                     int crt_building=-1;
                     int n_changes=0;
                     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->maxBuildingChangesPerDay){
                            nbroken+=-this->maxBuildingChangesPerDay+n_changes;
              
                            if(conflictsString!=NULL){
                                   QString s=tr("Space constraint teachers max building changes per day broken for teacher=%1 on day %2")
                                          .arg(r.internalTeachersList[tch]->name)
                                          .arg(r.daysOfTheWeek[d2]);
                                   s += ". ";
                                   s += tr("This increases the conflicts total by %1").arg(CustomFETString::number(weightPercentage/100* (-maxBuildingChangesPerDay+n_changes)));
                                   
                                   dl.append(s);
                                   cl.append(weightPercentage/100* (-maxBuildingChangesPerDay+n_changes));
                            
                                   *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 5596 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("Teachers max building changes per day"); s+=", ";

       s+=tr("WP:%1\%", "Weight percentage").arg(CustomFETString::number(this->weightPercentage));s+=", ";
       
       s+=tr("MC:%1", "MC means max changes").arg(this->maxBuildingChangesPerDay);

       return begin+s+end;
}

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Returns a detailed description string for this constraint.

Implements SpaceConstraint.

Definition at line 5617 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);

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

       s+=tr("Teachers maximum building changes per day"); s+="\n";

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

       s+=tr("Maximum building changes per day=%1").arg(this->maxBuildingChangesPerDay);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 5581 of file spaceconstraint.cpp.

                                                                             {
       Q_UNUSED(r);

       QString s="<ConstraintTeachersMaxBuildingChangesPerDay>\n";

       s+="   <Weight_Percentage>"+CustomFETString::number(weightPercentage)+"</Weight_Percentage>\n";
       s+="   <Max_Building_Changes_Per_Day>"+CustomFETString::number(this->maxBuildingChangesPerDay)+"</Max_Building_Changes_Per_Day>\n";
              
       s+="   <Active>"+trueFalse(active)+"</Active>\n";
       s+="   <Comments>"+protect(comments)+"</Comments>\n";
       s+="</ConstraintTeachersMaxBuildingChangesPerDay>\n";

       return s;
}

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Implements SpaceConstraint.

Definition at line 5574 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 5763 of file spaceconstraint.cpp.

{
       if(maxBuildingChangesPerDay>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 5720 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 5741 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this room.

Implements SpaceConstraint.

Definition at line 5756 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 5748 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 5734 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);
       
       return false;
}

Returns true if this constraint is related to this teacher.

Implements SpaceConstraint.

Definition at line 5727 of file spaceconstraint.cpp.

{
       Q_UNUSED(t);

       return true;
}

Implements SpaceConstraint.

Definition at line 5778 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 1228 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: