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Switch to PointsGraphicsItem that uses a kd-tree to quickly determine what points to redraw

This commit is contained in:
Andreas Fabri 2010-09-23 07:52:12 +00:00
parent 4306b967ee
commit ef0c072342
1 changed files with 3 additions and 3 deletions
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6
GraphicsView/demo/Spatial_searching_2/Spatial_searching_2.cpp
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@ -12,7 +12,7 @@
#include <QGraphicsLineItem> #include <QGraphicsLineItem>
// GraphicsView items and event filters (input classes) // GraphicsView items and event filters (input classes)
#include <CGAL/Qt/PointsGraphicsItem.h> #include <CGAL/Qt/PointsInKdTreeGraphicsItem.h>
#include <CGAL/Qt/utility.h> #include <CGAL/Qt/utility.h>
// the two base classes // the two base classes
@ -44,7 +44,7 @@ private:
CGAL::Qt::Converter<K> convert; CGAL::Qt::Converter<K> convert;
QGraphicsScene scene; QGraphicsScene scene;
CGAL::Qt::PointsGraphicsItem<Tree> * pgi; CGAL::Qt::PointsInKdTreeGraphicsItem<Tree> * pgi;
NearestNeighbor * nearest_neighbor; NearestNeighbor * nearest_neighbor;
public: public:
@ -128,7 +128,7 @@ MainWindow::MainWindow()
points.push_back(Point_2(102,2)); points.push_back(Point_2(102,2));
tree.insert(points.begin(), points.end()); tree.insert(points.begin(), points.end());
// Add a GraphicItem for the point set // Add a GraphicItem for the point set
pgi = new CGAL::Qt::PointsGraphicsItem<Tree>(&tree); pgi = new CGAL::Qt::PointsInKdTreeGraphicsItem<Tree>(&tree);
QObject::connect(this, SIGNAL(changed()), QObject::connect(this, SIGNAL(changed()),
pgi, SLOT(modelChanged())); pgi, SLOT(modelChanged()));