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fet  5.18.0
Public Member Functions | Public Attributes
ConstraintStudentsMaxBuildingChangesPerDay Class Reference

#include <spaceconstraint.h>

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List of all members.

Public Member Functions

 ConstraintStudentsMaxBuildingChangesPerDay ()
 ConstraintStudentsMaxBuildingChangesPerDay (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 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 965 of file spaceconstraint.h.


Constructor & Destructor Documentation


Member Function Documentation

Implements SpaceConstraint.

Definition at line 4215 of file spaceconstraint.cpp.

{
       assert(hasWrongDayOrHour(r));

       return true;
}

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

Computes the internal structure for this constraint.

Implements SpaceConstraint.

Definition at line 4010 of file spaceconstraint.cpp.

{
       Q_UNUSED(parent);
       Q_UNUSED(r);
       
       return true;
}
double ConstraintStudentsMaxBuildingChangesPerDay::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 4085 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;
                                   }
                            }
                     }

              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 students max building changes per day broken for students=%1 on day %2")
                                          .arg(r.internalSubgroupsList[sbg]->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 4040 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 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 4061 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);

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

       s+=tr("Students 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 4025 of file spaceconstraint.cpp.

                                                                             {
       Q_UNUSED(r);

       QString s="<ConstraintStudentsMaxBuildingChangesPerDay>\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+="</ConstraintStudentsMaxBuildingChangesPerDay>\n";

       return s;
}

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Implements SpaceConstraint.

Definition at line 4018 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 4207 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 4164 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 4185 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this room.

Implements SpaceConstraint.

Definition at line 4200 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 4192 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 4178 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);
       
       return false;
}

Returns true if this constraint is related to this teacher.

Implements SpaceConstraint.

Definition at line 4171 of file spaceconstraint.cpp.

{
       Q_UNUSED(t);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 4222 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 970 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: