Back to index

fet  5.18.0
Public Member Functions | Public Attributes
ConstraintStudentsMinGapsBetweenBuildingChanges Class Reference

#include <spaceconstraint.h>

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

List of all members.

Public Member Functions

 ConstraintStudentsMinGapsBetweenBuildingChanges ()
 ConstraintStudentsMinGapsBetweenBuildingChanges (double wp, int mg)
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 minGapsBetweenBuildingChanges
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 1137 of file spaceconstraint.h.


Constructor & Destructor Documentation


Member Function Documentation

Implements SpaceConstraint.

Definition at line 5284 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 5067 of file spaceconstraint.cpp.

{
       Q_UNUSED(parent);
       Q_UNUSED(r);
              
       return true;
}
double ConstraintStudentsMinGapsBetweenBuildingChanges::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 5142 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 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 students min gaps between building changes 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*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;
}

Here is the call graph for this function:

Returns a small description string for this constraint.

Implements SpaceConstraint.

Definition at line 5097 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 min gaps between building changes"); s+=", ";

       s+=tr("WP:%1\%", "Weight percentage").arg(CustomFETString::number(this->weightPercentage));s+=", ";
       
       s+=tr("mG:%1", "mG means min gaps").arg(this->minGapsBetweenBuildingChanges);

       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 5118 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);

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

       s+=tr("Students minimum gaps between building changes"); s+="\n";

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

Here is the call graph for this function:

Returns an XML description of this constraint.

Implements SpaceConstraint.

Definition at line 5082 of file spaceconstraint.cpp.

                                                                                  {
       Q_UNUSED(r);

       QString s="<ConstraintStudentsMinGapsBetweenBuildingChanges>\n";

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

       return s;
}

Here is the call graph for this function:

Implements SpaceConstraint.

Definition at line 5075 of file spaceconstraint.cpp.

{
       Q_UNUSED(r);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 5276 of file spaceconstraint.cpp.

{
       if(minGapsBetweenBuildingChanges>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 5233 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 5254 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this room.

Implements SpaceConstraint.

Definition at line 5269 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 5261 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 5247 of file spaceconstraint.cpp.

{
       Q_UNUSED(s);
       
       return false;
}

Returns true if this constraint is related to this teacher.

Implements SpaceConstraint.

Definition at line 5240 of file spaceconstraint.cpp.

{
       Q_UNUSED(t);
       
       return false;
}

Implements SpaceConstraint.

Definition at line 5291 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 1142 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: