Back to index

fet  5.18.0
Public Member Functions | Public Attributes
ConstraintStudentsSetMaxBuildingChangesPerWeek Class Reference

#include <spaceconstraint.h>

Inheritance diagram for ConstraintStudentsSetMaxBuildingChangesPerWeek:
Inheritance graph
[legend]
Collaboration diagram for ConstraintStudentsSetMaxBuildingChangesPerWeek:
Collaboration graph
[legend]

List of all members.

Public Member Functions

 ConstraintStudentsSetMaxBuildingChangesPerWeek ()
 ConstraintStudentsSetMaxBuildingChangesPerWeek (double wp, QString st, 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

QList< int > iSubgroupsList
int maxBuildingChangesPerWeek
QString studentsName
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 1005 of file spaceconstraint.h.


Constructor & Destructor Documentation


Member Function Documentation

Implements SpaceConstraint.

Definition at line 4499 of file spaceconstraint.cpp.

{
       assert(hasWrongDayOrHour(r));

       return true;
}

Here is the call graph for this function:

Computes the internal structure for this constraint.

Implements SpaceConstraint.

Definition at line 4249 of file spaceconstraint.cpp.

{
       this->iSubgroupsList.clear();
       
       StudentsSet* ss=r.searchAugmentedStudentsSet(this->studentsName);
                     
       if(ss==NULL){
              QMessageBox::warning(parent, tr("FET warning"),
               tr("Constraint students set max building changes per week is wrong because it refers to inexistent students set."
               " Please correct it (removing it might be a solution). Please report potential bug. Constraint is:\n%1").arg(this->getDetailedDescription(r)));
                                                                              
              return false;
       }                                                                                   
       
       if(ss->type==STUDENTS_SUBGROUP){
              int tmp;
              tmp=((StudentsSubgroup*)ss)->indexInInternalSubgroupsList;
              assert(tmp>=0);
              assert(tmp<r.nInternalSubgroups);
              this->iSubgroupsList.append(tmp);
       }
       else if(ss->type==STUDENTS_GROUP){
              StudentsGroup* stg=(StudentsGroup*)ss;
              for(int i=0; i<stg->subgroupsList.size(); i++){
                     StudentsSubgroup* sts=stg->subgroupsList[i];
                     int tmp;
                     tmp=sts->indexInInternalSubgroupsList;
                     assert(tmp>=0);
                     assert(tmp<r.nInternalSubgroups);
                     this->iSubgroupsList.append(tmp);
              }
       }
       else if(ss->type==STUDENTS_YEAR){
              StudentsYear* sty=(StudentsYear*)ss;
              for(int i=0; i<sty->groupsList.size(); i++){
                     StudentsGroup* stg=sty->groupsList[i];
                     for(int j=0; j<stg->subgroupsList.size(); j++){
                            StudentsSubgroup* sts=stg->subgroupsList[j];
                            int tmp;
                            tmp=sts->indexInInternalSubgroupsList;
                            assert(tmp>=0);
                            assert(tmp<r.nInternalSubgroups);
                            this->iSubgroupsList.append(tmp);
                     }
              }
       }
       else
              assert(0);

       return true;
}

Here is the call graph for this function:

double ConstraintStudentsSetMaxBuildingChangesPerWeek::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 4373 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;
       
       foreach(int sbg, this->iSubgroupsList){
              //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 set max building changes per week broken for students=%1")
                                   .arg(this->studentsName);
                            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;
}

Here is the call graph for this function:

Returns a small description string for this constraint.

Implements SpaceConstraint.

Definition at line 4324 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 set max building changes per week"); s+=", ";

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

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

       return begin+s+end;
}

Here is the call graph for this function:

Returns a detailed description string for this constraint.

Implements SpaceConstraint.

Definition at line 4347 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);

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

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

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

       s+=tr("Students=%1").arg(this->studentsName);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;
}

Here is the call graph for this function:

Here is the caller graph for this function:

Returns an XML description of this constraint.

Implements SpaceConstraint.

Definition at line 4308 of file spaceconstraint.cpp.

                                                                                 {
       Q_UNUSED(r);

       QString s="<ConstraintStudentsSetMaxBuildingChangesPerWeek>\n";

       s+="   <Weight_Percentage>"+CustomFETString::number(weightPercentage)+"</Weight_Percentage>\n";
       s+="   <Students>"+protect(this->studentsName)+"</Students>\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+="</ConstraintStudentsSetMaxBuildingChangesPerWeek>\n";

       return s;
}

Here is the call graph for this function:

Implements SpaceConstraint.

Definition at line 4301 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 4491 of file spaceconstraint.cpp.

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

Here is the caller graph for this function:

Returns true if this constraint is related to this activity.

Implements SpaceConstraint.

Definition at line 4451 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 4472 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this room.

Implements SpaceConstraint.

Definition at line 4484 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 4479 of file spaceconstraint.cpp.

{
       return r.setsShareStudents(s->name, this->studentsName);
}

Here is the call graph for this function:

Returns true if this constraint is related to this subject.

Implements SpaceConstraint.

Definition at line 4465 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);
       
       return false;
}

Returns true if this constraint is related to this teacher.

Implements SpaceConstraint.

Definition at line 4458 of file spaceconstraint.cpp.

{
       Q_UNUSED(t);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 4506 of file spaceconstraint.cpp.

Here is the call graph for this function:


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 1010 of file spaceconstraint.h.

Definition at line 1014 of file spaceconstraint.h.

Definition at line 1016 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: