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Faster graph zoom by using a snapshot-preview (#1728)

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* Faster graph zoom by using a snapshot-preview

* Added "Fast Zooming..." menu option

---------

Co-authored-by: matlabbe <matlabbe@gmail.com>
This commit is contained in:
Pierre ELIS
2026-07-05 22:06:08 +02:00
committed by GitHub
parent d069becc72
commit e321999b15
2 changed files with 165 additions and 20 deletions
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14
guilib/include/rtabmap/gui/GraphViewer.h
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@@ -33,6 +33,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <QGraphicsView>
#include <QtCore/QMap>
#include <QtCore/QSettings>
#include <QTimer>
#include <QGraphicsPixmapItem>
#include <rtabmap/core/Link.h>
#include <rtabmap/core/GPS.h>
#include <opencv2/opencv.hpp>
@@ -130,6 +132,7 @@ public:
bool isOrientationENU() const;
ViewPlane getViewPlane() const;
bool isEnsureFrameVisible() const;
int getFastZoomMinNodes() const;
// setters
void setWorkingDirectory(const QString & path);
@@ -170,6 +173,7 @@ public:
void setOrientationENU(bool enabled);
void setViewPlane(ViewPlane plane);
void setEnsureFrameVisible(bool visible);
void setFastZoomMinNodes(int value);
Q_SIGNALS:
void configChanged();
@@ -184,11 +188,14 @@ protected:
virtual void wheelEvent ( QWheelEvent * event );
virtual void mouseMoveEvent(QMouseEvent * event);
virtual void mousePressEvent(QMouseEvent * event);
virtual void mouseReleaseEvent(QMouseEvent * event);
virtual void contextMenuEvent(QContextMenuEvent * event);
private:
void setupGraphicsScene();
void startZoomOverlay();
void updateZoomOverlay();
void stopZoomOverlay();
private:
QString _workingDirectory;
QColor _nodeColor;
@@ -248,6 +255,11 @@ private:
ViewPlane _viewPlane;
bool _ensureFrameVisible;
QPoint _previousMousePos;
QPoint _initialMousePos;
QTimer _zoomDebounceTimer;
QGraphicsPixmapItem * _zoomOverlayItem;
bool _zoomOverlayActive;
int _fastZoomMinNodes;
};
} /* namespace rtabmap */