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pal.cpp
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pal.cpp
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/*
* libpal - Automated Placement of Labels Library
*
* Copyright (C) 2008 Maxence Laurent, MIS-TIC, HEIG-VD
* University of Applied Sciences, Western Switzerland
* http://www.hes-so.ch
*
* Contact:
* maxence.laurent <at> heig-vd <dot> ch
* or
* eric.taillard <at> heig-vd <dot> ch
*
* This file is part of libpal.
*
* libpal is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libpal is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with libpal. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
//#define _VERBOSE_
//#define _EXPORT_MAP_
#include <QTime>
#define _CRT_SECURE_NO_DEPRECATE
#include <cstdarg>
#include <iostream>
#include <fstream>
#include <cstring>
#include <cfloat>
#include <list>
//#include <geos/geom/Geometry.h>
#include <geos_c.h>
#include <pal/pal.h>
#include <pal/layer.h>
#include <pal/palexception.h>
#include <pal/palstat.h>
#include "linkedlist.hpp"
#include "rtree.hpp"
#include "costcalculator.h"
#include "feature.h"
#include "geomfunction.h"
#include "labelposition.h"
#include "problem.h"
#include "pointset.h"
#include "simplemutex.h"
#include "util.h"
namespace pal
{
void geosError( const char *fmt, ... )
{
va_list list;
va_start( list, fmt );
vfprintf( stderr, fmt, list );
}
void geosNotice( const char *fmt, ... )
{
va_list list;
va_start( list, fmt );
vfprintf( stdout, fmt, list );
}
Pal::Pal()
{
initGEOS( geosNotice, geosError );
layers = new std::list<Layer*>();
lyrsMutex = new SimpleMutex();
ejChainDeg = 50;
tenure = 10;
candListSize = 0.2;
tabuMinIt = 3;
tabuMaxIt = 4;
searchMethod = POPMUSIC_CHAIN;
popmusic_r = 30;
searchMethod = CHAIN;
setSearch( CHAIN );
dpi = 72;
point_p = 8;
line_p = 8;
poly_p = 8;
this->map_unit = pal::METER;
std::cout.precision( 12 );
std::cerr.precision( 12 );
}
std::list<Layer*> *Pal::getLayers()
{
// TODO make const ! or whatever else
return layers;
}
Layer *Pal::getLayer( const char *lyrName )
{
lyrsMutex->lock();
for ( std::list<Layer*>::iterator it = layers->begin(); it != layers->end();it++ )
if ( strcmp(( *it )->name, lyrName ) == 0 )
{
lyrsMutex->unlock();
return *it;
}
lyrsMutex->unlock();
throw new PalException::UnknownLayer();
return NULL;
}
void Pal::removeLayer( Layer *layer )
{
lyrsMutex->lock();
if ( layer )
{
layers->remove( layer );
delete layer;
}
lyrsMutex->unlock();
}
Pal::~Pal()
{
lyrsMutex->lock();
while ( layers->size() > 0 )
{
delete layers->front();
layers->pop_front();
}
delete layers;
delete lyrsMutex;
finishGEOS();
}
Layer * Pal::addLayer( const char *lyrName, double min_scale, double max_scale, Arrangement arrangement, Units label_unit, double defaultPriority, bool obstacle, bool active, bool toLabel )
{
Layer *lyr;
lyrsMutex->lock();
#ifdef _DEBUG_
std::cout << "Pal::addLayer" << std::endl;
std::cout << "lyrName:" << lyrName << std::endl;
std::cout << "nbLayers:" << layers->size() << std::endl;
#endif
for ( std::list<Layer*>::iterator it = layers->begin(); it != layers->end();it++ )
{
if ( strcmp(( *it )->name, lyrName ) == 0 ) // if layer already known
{
lyrsMutex->unlock();
throw new PalException::LayerExists();
}
}
lyr = new Layer( lyrName, min_scale, max_scale, arrangement, label_unit, defaultPriority, obstacle, active, toLabel, this );
layers->push_back( lyr );
lyrsMutex->unlock();
return lyr;
}
typedef struct _featCbackCtx
{
Layer *layer;
double scale;
LinkedList<Feats*> *fFeats;
RTree<PointSet*, double, 2, double> *obstacles;
RTree<LabelPosition*, double, 2, double> *candidates;
double priority;
double bbox_min[2];
double bbox_max[2];
#ifdef _EXPORT_MAP_
std::ofstream *svgmap;
#endif
} FeatCallBackCtx;
/*
* Callback function
*
* Extract a specific shape from indexes
*/
bool extractFeatCallback( FeaturePart *ft_ptr, void *ctx )
{
double min[2];
double max[2];
FeatCallBackCtx *context = ( FeatCallBackCtx* ) ctx;
#ifdef _EXPORT_MAP_
bool svged = false; // is the feature has been written into the svg map ?
int dpi = context->layer->pal->getDpi();
#endif
#ifdef _DEBUG_FULL_
std::cout << "extract feat : " << ft_ptr->layer->name << "/" << ft_ptr->uid << std::endl;
#endif
// all feature which are obstacle will be inserted into obstacles
if ( context->layer->obstacle )
{
ft_ptr->getBoundingBox(min, max);
context->obstacles->Insert( min, max, ft_ptr );
}
// feature has to be labeled ?
if ( context->layer->toLabel && context->layer->isScaleValid( context->scale ) )
{
// is the feature well defined ? // TODO Check epsilon
if ( ft_ptr->getLabelWidth() > 0.0000001 && ft_ptr->getLabelHeight() > 0.0000001 )
{
int i;
// Hole of the feature are obstacles
for ( i = 0;i < ft_ptr->getNumSelfObstacles();i++ )
{
ft_ptr->getSelfObstacle(i)->getBoundingBox(min, max);
context->obstacles->Insert( min, max, ft_ptr->getSelfObstacle(i) );
if ( !ft_ptr->getSelfObstacle(i)->getHoleOf() )
{
std::cout << "ERROR: SHOULD HAVE A PARENT!!!!!" << std::endl;
}
}
LinkedList<Feats*> *feats = new LinkedList<Feats*> ( ptrFeatsCompare );
QTime t;
t.start();
if (( ft_ptr->getGeosType() == GEOS_LINESTRING )
|| ft_ptr->getGeosType() == GEOS_POLYGON )
{
double bbx[4], bby[4];
bbx[0] = context->bbox_min[0]; bbx[1] = context->bbox_max[0];
bbx[2] = context->bbox_max[0]; bbx[3] = context->bbox_min[0];
bby[0] = context->bbox_min[1]; bby[1] = context->bbox_min[1];
bby[2] = context->bbox_max[1]; bby[3] = context->bbox_max[1];
LinkedList<PointSet*> *shapes = new LinkedList<PointSet*> ( ptrPSetCompare );
bool outside, inside;
PointSet *shape = ft_ptr->createProblemSpecificPointSet( bbx, bby, &outside, &inside );
if ( inside )
{
// no extra treatment required
shapes->push_back( shape );
}
else
{
// feature isn't completly in the math
if ( ft_ptr->getGeosType() == GEOS_LINESTRING )
PointSet::reduceLine( shape, shapes, bbx, bby );
else
{
PointSet::reducePolygon( shape, shapes, bbx, bby );
}
}
while ( shapes->size() > 0 )
{
shape = shapes->pop_front();
Feats *ft = new Feats();
ft->feature = ft_ptr;
ft->shape = shape;
feats->push_back( ft );
#ifdef _EXPORT_MAP_
if ( !svged )
{
toSVGPath( shape->nbPoints, shape->type, shape->x, shape->y,
dpi , context->scale,
convert2pt( context->bbox_min[0], context->scale, dpi ),
convert2pt( context->bbox_max[1], context->scale, dpi ),
context->layer->name, ft_ptr->uid, *context->svgmap );
}
#endif
}
delete shapes;
}
else
{
// Feat is a point
Feats *ft = new Feats();
ft->feature = ft_ptr;
ft->shape = NULL;
feats->push_back( ft );
}
// for earch feature part extracted : generate candidates
while ( feats->size() > 0 )
{
Feats *ft = feats->pop_front();
#ifdef _DEBUG_
std::cout << "Compute candidates for feat " << ft->feature->layer->name << "/" << ft->feature->uid << std::endl;
#endif
ft->nblp = ft->feature->setPosition( context->scale, & ( ft->lPos ), context->bbox_min, context->bbox_max, ft->shape, context->candidates
#ifdef _EXPORT_MAP_
, *context->svgmap
#endif
);
delete ft->shape;
ft->shape = NULL;
if ( ft->nblp > 0 )
{
// valid features are added to fFeats
ft->priority = context->priority;
context->fFeats->push_back( ft );
#ifdef _DEBUG_
std::cout << ft->nblp << " labelPositions for feature : " << ft->feature->layer->name << "/" << ft->feature->uid << std::endl;
#endif
}
else
{
// Others are deleted
#ifdef _VERBOSE_
std::cout << "Unable to generate labelPosition for feature : " << ft->feature->layer->name << "/" << ft->feature->uid << std::endl;
#endif
delete[] ft->lPos;
delete ft;
}
}
delete feats;
}
else // check labelsize
{
#ifdef _VERBOSE_
std::cerr << "Feature " << ft_ptr->layer->name << "/" << ft_ptr->uid << " is skipped (label size = 0)" << std::endl;
#endif
}
}
return true;
}
typedef struct _filterContext
{
RTree<LabelPosition*, double, 2, double> *cdtsIndex;
double scale;
Pal* pal;
} FilterContext;
bool filteringCallback( PointSet *pset, void *ctx )
{
RTree<LabelPosition*, double, 2, double> *cdtsIndex = (( FilterContext* ) ctx )->cdtsIndex;
double scale = (( FilterContext* ) ctx )->scale;
Pal* pal = (( FilterContext* )ctx )->pal;
double amin[2], amax[2];
pset->getBoundingBox(amin, amax);
LabelPosition::PruneCtx pruneContext;
pruneContext.scale = scale;
pruneContext.obstacle = pset;
pruneContext.pal = pal;
cdtsIndex->Search( amin, amax, LabelPosition::pruneCallback, ( void* ) &pruneContext );
return true;
}
/**
* \Brief Problem Factory
* Select features from user's choice layers within
* a specific bounding box
* param nbLayers # wanted layers
* param layersFactor layers importance
* param layersName layers in problem
* param lambda_min west bbox
* param phi_min south bbox
* param lambda_max east bbox
* param phi_max north bbox
* param scale the scale
*/
Problem* Pal::extract( int nbLayers, char **layersName, double *layersFactor, double lambda_min, double phi_min, double lambda_max, double phi_max, double scale, std::ofstream *svgmap )
{
// to store obstacles
RTree<PointSet*, double, 2, double> *obstacles = new RTree<PointSet*, double, 2, double>();
Problem *prob = new Problem();
int i, j, c;
double bbx[4];
double bby[4];
double amin[2];
double amax[2];
int max_p = 0;
LabelPosition* lp;
bbx[0] = bbx[3] = amin[0] = prob->bbox[0] = lambda_min;
bby[0] = bby[1] = amin[1] = prob->bbox[1] = phi_min;
bbx[1] = bbx[2] = amax[0] = prob->bbox[2] = lambda_max;
bby[2] = bby[3] = amax[1] = prob->bbox[3] = phi_max;
prob->scale = scale;
prob->pal = this;
LinkedList<Feats*> *fFeats = new LinkedList<Feats*> ( ptrFeatsCompare );
FeatCallBackCtx *context = new FeatCallBackCtx();
context->fFeats = fFeats;
context->scale = scale;
context->obstacles = obstacles;
context->candidates = prob->candidates;
context->bbox_min[0] = amin[0];
context->bbox_min[1] = amin[1];
context->bbox_max[0] = amax[0];
context->bbox_max[1] = amax[1];
#ifdef _EXPORT_MAP_
context->svgmap = svgmap;
#endif
#ifdef _VERBOSE_
std::cout << nbLayers << "/" << layers->size() << " layers to extract " << std::endl;
std::cout << "scale is 1:" << scale << std::endl << std::endl;
#endif
/* First step : extract feature from layers
*
* */
int oldNbft = 0;
Layer *layer;
std::list<char*> *labLayers = new std::list<char*>();
lyrsMutex->lock();
for ( i = 0;i < nbLayers;i++ )
{
for ( std::list<Layer*>::iterator it = layers->begin(); it != layers->end();it++ ) // iterate on pal->layers
{
layer = *it;
// Only select those who are active and labellable (with scale constraint) or those who are active and which must be treated as obstaclewhich must be treated as obstacle
if ( layer->active
&& ( layer->obstacle || ( layer->toLabel && layer->isScaleValid( scale ) ) ) )
{
// check if this selected layers has been selected by user
if ( strcmp( layersName[i], layer->name ) == 0 )
{
// check for connected features with the same label text and join them
if (layer->getMergeConnectedLines())
layer->joinConnectedFeatures();
context->layer = layer;
context->priority = layersFactor[i];
// lookup for feature (and generates candidates list)
#ifdef _EXPORT_MAP_
*svgmap << "<g inkscape:label=\"" << layer->name << "\"" << std::endl
<< " inkscape:groupmode=\"layer\"" << std::endl
<< " id=\"" << layer->name << "\">" << std::endl << std::endl;
#endif
context->layer->modMutex->lock();
context->layer->rtree->Search( amin, amax, extractFeatCallback, ( void* ) context );
context->layer->modMutex->unlock();
#ifdef _EXPORT_MAP_
*svgmap << "</g>" << std::endl << std::endl;
#endif
#ifdef _VERBOSE_
std::cout << "Layer's name: " << layer->getName() << std::endl;
std::cout << " scale range: " << layer->getMinScale() << "->" << layer->getMaxScale() << std::endl;
std::cout << " active:" << layer->isToLabel() << std::endl;
std::cout << " obstacle:" << layer->isObstacle() << std::endl;
std::cout << " toLabel:" << layer->isToLabel() << std::endl;
std::cout << " # features: " << layer->getNbFeatures() << std::endl;
std::cout << " # extracted features: " << context->fFeats->size() - oldNbft << std::endl;
#endif
if ( context->fFeats->size() - oldNbft > 0 )
{
char *name = new char[strlen( layer->getName() ) +1];
strcpy( name, layer->getName() );
labLayers->push_back( name );
}
oldNbft = context->fFeats->size();
break;
}
}
}
}
delete context;
lyrsMutex->unlock();
prob->nbLabelledLayers = labLayers->size();
prob->labelledLayersName = new char*[prob->nbLabelledLayers];
for ( i = 0;i < prob->nbLabelledLayers;i++ )
{
prob->labelledLayersName[i] = labLayers->front();
labLayers->pop_front();
}
delete labLayers;
if ( fFeats->size() == 0 )
{
#ifdef _VERBOSE_
std::cout << std::endl << "Empty problem" << std::endl;
#endif
delete fFeats;
delete prob;
delete obstacles;
return NULL;
}
prob->nbft = fFeats->size();
prob->nblp = 0;
prob->featNbLp = new int [prob->nbft];
prob->featStartId = new int [prob->nbft];
prob->inactiveCost = new double[prob->nbft];
Feats *feat;
std::cout << "FIRSST NBFT : " << prob->nbft << std::endl;
// Filtering label positions against obstacles
amin[0] = amin[1] = -DBL_MAX;
amax[0] = amax[1] = DBL_MAX;
FilterContext filterCtx;
filterCtx.cdtsIndex = prob->candidates;
filterCtx.scale = prob->scale;
filterCtx.pal = this;
obstacles->Search( amin, amax, filteringCallback, ( void* ) &filterCtx );
int idlp = 0;
for ( i = 0;i < prob->nbft;i++ ) /* foreach feature into prob */
{
feat = fFeats->pop_front();
#ifdef _DEBUG_FULL_
std::cout << "Feature:" << feat->feature->layer->name << "/" << feat->feature->uid << std::endl;
#endif
prob->featStartId[i] = idlp;
prob->inactiveCost[i] = pow( 2, 10 - 10 * feat->priority );
switch ( feat->feature->getGeosType() )
{
case GEOS_POINT:
max_p = point_p;
break;
case GEOS_LINESTRING:
max_p = line_p;
break;
case GEOS_POLYGON:
max_p = poly_p;
break;
}
// sort candidates by cost, skip less interesting ones, calculate polygon costs (if using polygons)
max_p = CostCalculator::finalizeCandidatesCosts( feat, max_p, obstacles, bbx, bby );
#ifdef _DEBUG_FULL_
std::cout << "All Cost are setted" << std::endl;
#endif
// only keep the 'max_p' best candidates
for ( j = max_p;j < feat->nblp;j++ )
{
// TODO remove from index
feat->lPos[j]->removeFromIndex( prob->candidates );
delete feat->lPos[j];
}
feat->nblp = max_p;
// update problem's # candidate
prob->featNbLp[i] = feat->nblp;
prob->nblp += feat->nblp;
// add all candidates into a rtree (to speed up conflicts searching)
for ( j = 0;j < feat->nblp;j++, idlp++ )
{
lp = feat->lPos[j];
//lp->insertIntoIndex(prob->candidates);
lp->setProblemIds( i, idlp ); // bugfix #1 (maxence 10/23/2008)
}
fFeats->push_back( feat );
}
#ifdef _DEBUG_FULL_
std::cout << "Malloc problem...." << std::endl;
#endif
idlp = 0;
int nbOverlaps = 0;
prob->labelpositions = new LabelPosition*[prob->nblp];
//prob->feat = new int[prob->nblp];
#ifdef _DEBUG_FULL_
std::cout << "problem malloc'd" << std::endl;
#endif
j = 0;
while ( fFeats->size() > 0 ) // foreach feature
{
feat = fFeats->pop_front();
for ( i = 0;i < feat->nblp;i++, idlp++ ) // foreach label candidate
{
lp = feat->lPos[i];
lp->resetNumOverlaps();
// make sure that candidate's cost is less than 1
lp->validateCost();
prob->labelpositions[idlp] = lp;
//prob->feat[idlp] = j;
lp->getBoundingBox(amin, amax);
// lookup for overlapping candidate
prob->candidates->Search( amin, amax, LabelPosition::countOverlapCallback, ( void* ) lp );
nbOverlaps += lp->getNumOverlaps();
#ifdef _DEBUG_FULL_
std::cout << "Nb overlap for " << idlp << "/" << prob->nblp - 1 << " : " << lp->nbOverlap << std::endl;
#endif
}
j++;
delete[] feat->lPos;
delete feat;
}
delete fFeats;
//delete candidates;
delete obstacles;
nbOverlaps /= 2;
prob->all_nblp = prob->nblp;
prob->nbOverlap = nbOverlaps;
#ifdef _VERBOSE_
std::cout << "nbOverlap: " << prob->nbOverlap << std::endl;
std::cerr << scale << "\t"
<< prob->nbft << "\t"
<< prob->nblp << "\t"
<< prob->nbOverlap << "\t";
#endif
return prob;
}
std::list<LabelPosition*>* Pal::labeller( double scale, double bbox[4], PalStat **stats, bool displayAll )
{
#ifdef _DEBUG_FULL_
std::cout << "LABELLER (active)" << std::endl;
#endif
int i;
lyrsMutex->lock();
int nbLayers = layers->size();
char **layersName = new char*[nbLayers];
double *priorities = new double[nbLayers];
Layer *layer;
i = 0;
for ( std::list<Layer*>::iterator it = layers->begin(); it != layers->end();it++ )
{
layer = *it;
layersName[i] = layer->name;
priorities[i] = layer->defaultPriority;
i++;
}
lyrsMutex->unlock();
std::list<LabelPosition*> * solution = labeller( nbLayers, layersName, priorities, scale, bbox, stats, displayAll );
delete[] layersName;
delete[] priorities;
return solution;
}
/*
* BIG MACHINE
*/
std::list<LabelPosition*>* Pal::labeller( int nbLayers, char **layersName , double *layersFactor, double scale, double bbox[4], PalStat **stats, bool displayAll )
{
#ifdef _DEBUG_
std::cout << "LABELLER (selection)" << std::endl;
#endif
Problem *prob;
SearchMethod old_searchMethod = searchMethod;
if ( displayAll )
{
setSearch( POPMUSIC_TABU );
}
#ifdef _VERBOSE_
clock_t start = clock();
double create_time;
std::cout << std::endl << "bbox: " << bbox[0] << " " << bbox[1] << " " << bbox[2] << " " << bbox[3] << std::endl;
#endif
#ifdef _EXPORT_MAP_
// TODO this is not secure
std::ofstream svgmap( "pal-map.svg" );
svgmap << "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>" << std::endl
<< "<svg" << std::endl
<< "xmlns:dc=\"http://purl.org/dc/elements/1.1/\"" << std::endl
<< "xmlns:cc=\"http://creativecommons.org/ns#\"" << std::endl
<< "xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"" << std::endl
<< "xmlns:svg=\"http://www.w3.org/2000/svg\"" << std::endl
<< "xmlns=\"http://www.w3.org/2000/svg\"" << std::endl
<< "xmlns:sodipodi=\"http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd\"" << std::endl
<< "xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\"" << std::endl
<< "width=\"" << convert2pt( bbox[2] - bbox[0], scale, dpi ) << "\"" << std::endl
<< "height=\"" << convert2pt( bbox[3] - bbox[1], scale, dpi ) << "\">" << std::endl; // TODO xmax ymax
#endif
QTime t;
t.start();
// First, extract the problem
// TODO which is the minimum scale ? (> 0, >= 0, >= 1, >1 )
if ( scale < 1 || ( prob = extract( nbLayers, layersName, layersFactor, bbox[0], bbox[1], bbox[2], bbox[3], scale,
#ifdef _EXPORT_MAP_
& svgmap
#else
NULL
#endif
) ) == NULL )
{
#ifdef _VERBOSE_
if ( scale < 1 )
std::cout << "Scale is 1:" << scale << std::endl;
else
std::cout << "empty problem... finishing" << std::endl;
#endif
#ifdef _EXPORT_MAP_
svgmap << "</svg>" << std::endl;
svgmap.close();
#endif
// nothing to be done => return an empty result set
if ( stats )
( *stats ) = new PalStat();
return new std::list<LabelPosition*>();
}
std::cout << "PAL EXTRACT: " << t.elapsed() / 1000.0 << " s" << std::endl;
t.restart();
// reduce number of candidates
// (remove candidates which surely won't be used)
prob->reduce();
#ifdef _VERBOSE_
std::cerr << prob->nblp << "\t"
<< prob->nbOverlap;
#endif
prob->displayAll = displayAll;
#ifdef _VERBOSE_
create_time = double( clock() - start ) / double( CLOCKS_PER_SEC );
std::cout << std::endl << "Problem : " << prob->nblp << " candidates for " << prob->nbft << " features makes " << prob->nbOverlap << " overlaps" << std::endl;
std::cout << std::endl << "Times:" << std::endl << " to create problem: " << create_time << std::endl;
#endif
// search a solution
if ( searchMethod == FALP )
prob->init_sol_falp();
else if ( searchMethod == CHAIN )
prob->chain_search();
else
prob->popmusic();
std::cout << "PAL SEARCH (" << searchMethod << "): " << t.elapsed() / 1000.0 << " s" << std::endl;
t.restart();
// Post-Optimization
//prob->post_optimization();
std::list<LabelPosition*> * solution = prob->getSolution( displayAll );
if ( stats )
*stats = prob->getStats();
#ifdef _EXPORT_MAP_
prob->drawLabels( svgmap );
svgmap << "</svg>" << std::endl;
svgmap.close();
#endif
#ifdef _VERBOSE_
clock_t total_time = clock() - start;
std::cout << " Total time: " << double( total_time ) / double( CLOCKS_PER_SEC ) << std::endl;
std::cerr << "\t" << create_time << "\t" << double( total_time ) / double( CLOCKS_PER_SEC ) << std::endl;
#endif
delete prob;
if ( displayAll )
{
setSearch( old_searchMethod );
}
return solution;
}
Problem* Pal::extractProblem(double scale, double bbox[4])
{
// find out: nbLayers, layersName, layersFactor
lyrsMutex->lock();
int nbLayers = layers->size();
char **layersName = new char*[nbLayers];
double *priorities = new double[nbLayers];
Layer *layer;
int i = 0;
for ( std::list<Layer*>::iterator it = layers->begin(); it != layers->end();it++ )
{
layer = *it;
layersName[i] = layer->name;
priorities[i] = layer->defaultPriority;
i++;
}
lyrsMutex->unlock();
Problem* prob = extract( nbLayers, layersName, priorities, bbox[0], bbox[1], bbox[2], bbox[3], scale, NULL);
delete[] layersName;
delete[] priorities;
return prob;
}
std::list<LabelPosition*>* Pal::solveProblem(Problem* prob, bool displayAll )
{
if (prob == NULL)
return new std::list<LabelPosition*>();
prob->reduce();
if ( searchMethod == FALP )
prob->init_sol_falp();
else if ( searchMethod == CHAIN )
prob->chain_search();
else
prob->popmusic();
return prob->getSolution( displayAll );
}
void Pal::setPointP( int point_p )
{
if ( point_p > 0 )
this->point_p = point_p;
}
void Pal::setLineP( int line_p )
{
if ( line_p > 0 )
this->line_p = line_p;
}
void Pal::setPolyP( int poly_p )
{
if ( poly_p > 0 )
this->poly_p = poly_p;
}
void Pal::setMinIt( int min_it )
{
if ( min_it >= 0 )
tabuMinIt = min_it;
}
void Pal::setMaxIt( int max_it )
{
if ( max_it > 0 )
tabuMaxIt = max_it;
}
void Pal::setPopmusicR( int r )
{
if ( r > 0 )
popmusic_r = r;
}
void Pal::setEjChainDeg( int degree )
{
this->ejChainDeg = degree;
}
void Pal::setTenure( int tenure )
{
this->tenure = tenure;
}
void Pal::setCandListSize( double fact )
{
this->candListSize = fact;
}
void Pal::setDpi( int dpi )
{
if ( dpi > 0 )
this->dpi = dpi;
}
int Pal::getPointP()
{
return point_p;
}
int Pal::getLineP()
{
return line_p;
}
int Pal::getPolyP()
{
return poly_p;
}
int Pal::getMinIt()
{