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fet  5.18.0
Public Member Functions | Public Attributes
ConstraintTeacherMinGapsBetweenBuildingChanges Class Reference

#include <spaceconstraint.h>

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List of all members.

Public Member Functions

 ConstraintTeacherMinGapsBetweenBuildingChanges ()
 ConstraintTeacherMinGapsBetweenBuildingChanges (double wp, QString tc, int mg)
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 minGapsBetweenBuildingChanges
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 1349 of file spaceconstraint.h.


Constructor & Destructor Documentation


Member Function Documentation

Implements SpaceConstraint.

Definition at line 6519 of file spaceconstraint.cpp.

{
       assert(hasWrongDayOrHour(r));

       return true;
}

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Computes the internal structure for this constraint.

Implements SpaceConstraint.

Definition at line 6292 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 min gaps between building changes 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 ConstraintTeacherMinGapsBetweenBuildingChanges::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 6379 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;
                            }
                     }
              }
       
       for(int d2=0; d2<r.nDaysPerWeek; d2++){
              int h2;
              for(h2=0; h2<r.nHoursPerDay; h2++)
                     if(crtBuildingsTimetable[d2][h2]!=-1)
                            break;

              int crt_building=-1;                             
              if(h2<r.nHoursPerDay)
                     crt_building=crtBuildingsTimetable[d2][h2];
              
              int cnt_gaps=0;
              
              for(h2++; h2<r.nHoursPerDay; h2++){
                     if(crtBuildingsTimetable[d2][h2]!=-1){
                            if(crtBuildingsTimetable[d2][h2]==crt_building)
                                   cnt_gaps=0;
                            else{
                                   if(cnt_gaps<this->minGapsBetweenBuildingChanges){
                                          nbroken++;
                                   
                                          if(conflictsString!=NULL){
                                                 QString s=tr("Space constraint teacher min gaps between building changes broken for teacher=%1 on day %2")
                                                        .arg(this->teacherName)
                                                        .arg(r.daysOfTheWeek[d2]);
                                                 s += ". ";
                                                 s += tr("This increases the conflicts total by %1").arg(CustomFETString::number(weightPercentage/100*1));
                            
                                                 dl.append(s);
                                                 cl.append(weightPercentage/100*1);
                                   
                                                 *conflictsString+=s+"\n";
                                          }
                                   }
                                   
                                   crt_building=crtBuildingsTimetable[d2][h2];
                                   cnt_gaps=0;
                            }
                     }
                     else
                            cnt_gaps++;
              }
       }
       
       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 6330 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 min gaps between building changes"); 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("mG:%1", "mG means min gaps").arg(this->minGapsBetweenBuildingChanges);

       return begin+s+end;
}

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Returns a detailed description string for this constraint.

Implements SpaceConstraint.

Definition at line 6353 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);

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

       s+=tr("Teacher minimum gaps between building changes"); 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("Minimum gaps between building changes=%1").arg(this->minGapsBetweenBuildingChanges);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 6314 of file spaceconstraint.cpp.

                                                                                 {
       Q_UNUSED(r);

       QString s="<ConstraintTeacherMinGapsBetweenBuildingChanges>\n";

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

       return s;
}

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Implements SpaceConstraint.

Definition at line 6307 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 6511 of file spaceconstraint.cpp.

{
       if(minGapsBetweenBuildingChanges>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 6470 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 6489 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this room.

Implements SpaceConstraint.

Definition at line 6504 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 6496 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 6482 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);
       
       return false;
}

Returns true if this constraint is related to this teacher.

Implements SpaceConstraint.

Definition at line 6477 of file spaceconstraint.cpp.

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

Implements SpaceConstraint.

Definition at line 6526 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 1358 of file spaceconstraint.h.

Definition at line 1354 of file spaceconstraint.h.

Definition at line 1360 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: