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POI loading optimization

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This commit is contained in:
Martin Tůma
2016-10-08 14:53:10 +02:00
parent 434df521fb
commit f02ff1fa01
6 changed files with 131 additions and 75 deletions
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33
src/poi.cpp
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@ -1,7 +1,7 @@
#include <QFile>
#include <QSet>
#include <QList>
#include <QPainterPath>
#include "pathitem.h"
#include "waypointitem.h"
#include "ll.h"
#include "gpx.h"
@ -145,14 +145,15 @@ static bool cb(size_t data, void* context)
return true;
}
QVector<Waypoint> POI::points(const QPainterPath &path, qreal radius) const
QVector<Waypoint> POI::points(const PathItem *path, qreal radius) const
{
QVector<Waypoint> ret;
QSet<int> set;
qreal min[2], max[2];
const QPainterPath &pp = path->path();
for (int i = 0; i < path.elementCount(); i++) {
QPointF p = mercator2ll(path.elementAt(i));
for (int i = 0; i < pp.elementCount(); i++) {
QPointF p = mercator2ll(pp.elementAt(i));
min[0] = p.x() - radius;
min[1] = -p.y() - radius;
max[0] = p.x() + radius;
@ -194,6 +195,30 @@ QVector<Waypoint> POI::points(const QList<WaypointItem*> &list, qreal radius)
return ret;
}
QVector<Waypoint> POI::points(const QList<Waypoint> &list, qreal radius) const
{
QVector<Waypoint> ret;
QSet<int> set;
qreal min[2], max[2];
for (int i = 0; i < list.count(); i++) {
const QPointF &p = list.at(i).coordinates();
min[0] = p.x() - radius;
min[1] = p.y() - radius;
max[0] = p.x() + radius;
max[1] = p.y() + radius;
_tree.Search(min, max, cb, &set);
}
QSet<int>::const_iterator i = set.constBegin();
while (i != set.constEnd()) {
ret.append(_data.at(*i));
++i;
}
return ret;
}
void POI::enableFile(const QString &fileName, bool enable)
{
int i;