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fet  5.18.0
Public Member Functions | Public Attributes
ConstraintStudentsMaxBuildingChangesPerWeek Class Reference

#include <spaceconstraint.h>

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List of all members.

Public Member Functions

 ConstraintStudentsMaxBuildingChangesPerWeek ()
 ConstraintStudentsMaxBuildingChangesPerWeek (double wp, int mc)
bool computeInternalStructure (QWidget *parent, Rules &r)
 Computes the internal structure for this constraint.
QString getXmlDescription (Rules &r)
 Returns an XML description of this constraint.
bool hasInactiveActivities (Rules &r)
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 maxBuildingChangesPerWeek
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 1051 of file spaceconstraint.h.


Constructor & Destructor Documentation


Member Function Documentation

Implements SpaceConstraint.

Definition at line 4737 of file spaceconstraint.cpp.

{
       assert(hasWrongDayOrHour(r));

       return true;
}

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

Computes the internal structure for this constraint.

Implements SpaceConstraint.

Definition at line 4532 of file spaceconstraint.cpp.

{
       Q_UNUSED(parent);

       Q_UNUSED(r);

       return true;
}
double ConstraintStudentsMaxBuildingChangesPerWeek::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 4608 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 sbg=0; sbg<r.nInternalSubgroups; sbg++){
              //Better, less memory
              StudentsSubgroup* sts=r.internalSubgroupsList[sbg];
              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, sts->activitiesForSubgroup)
                     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+=-this->maxBuildingChangesPerWeek+n_changes;
              
                     if(conflictsString!=NULL){
                            QString s=tr("Space constraint students max building changes per week broken for students=%1")
                                   .arg(r.internalSubgroupsList[sbg]->name);
                            s += ". ";
                            s += tr("This increases the conflicts total by %1").arg(CustomFETString::number(weightPercentage/100* (-maxBuildingChangesPerWeek+n_changes)));
                            
                            dl.append(s);
                            cl.append(weightPercentage/100* (-maxBuildingChangesPerWeek+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 4563 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("Students max building changes per week"); s+=", ";

       s+=tr("WP:%1\%", "Weight percentage").arg(CustomFETString::number(this->weightPercentage));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 4584 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);

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

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

       s+=tr("Weight (percentage)=%1\%").arg(CustomFETString::number(this->weightPercentage));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 4548 of file spaceconstraint.cpp.

                                                                              {
       Q_UNUSED(r);

       QString s="<ConstraintStudentsMaxBuildingChangesPerWeek>\n";

       s+="   <Weight_Percentage>"+CustomFETString::number(weightPercentage)+"</Weight_Percentage>\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+="</ConstraintStudentsMaxBuildingChangesPerWeek>\n";

       return s;
}

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Implements SpaceConstraint.

Definition at line 4541 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 4729 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 4686 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 4707 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this room.

Implements SpaceConstraint.

Definition at line 4722 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 4714 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       Q_UNUSED(s);

       return true;
}

Returns true if this constraint is related to this subject.

Implements SpaceConstraint.

Definition at line 4700 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);
       
       return false;
}

Returns true if this constraint is related to this teacher.

Implements SpaceConstraint.

Definition at line 4693 of file spaceconstraint.cpp.

{
       Q_UNUSED(t);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 4744 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 1056 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: