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added temporal filtering to RSGraphWidget to clear up the display. Auto-changes with scale. Can be changed manually with shift+wheel

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This commit is contained in:
csoler 2015-12-27 17:00:54 -05:00
parent 140205108a
commit b32eb6e0c8
2 changed files with 157 additions and 141 deletions
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31
retroshare-gui/src/gui/common/RSGraphWidget.cpp
View file

@ -113,7 +113,7 @@ QString RSGraphSource::legend(int i,float v) const
return displayName(i) + " (" + displayValue(v) + " )";
}
void RSGraphSource::getDataPoints(int index,std::vector<QPointF>& pts) const
void RSGraphSource::getDataPoints(int index,std::vector<QPointF>& pts,float filter_factor) const
{
pts.clear() ;
qint64 now = getTime() ;
@ -126,8 +126,15 @@ void RSGraphSource::getDataPoints(int index,std::vector<QPointF>& pts) const
if(n != index)
return ;
float last_value = it->second.empty()?0.0f:(it->second.begin()->second) ;
for(std::list<std::pair<qint64,float> >::const_iterator it2=it->second.begin();it2!=it->second.end();++it2)
pts.push_back(QPointF( (now - (*it2).first)/1000.0f,(*it2).second)) ;
{
float val = (1-filter_factor)*(*it2).second + filter_factor*last_value;
last_value = val ;
pts.push_back(QPointF( (now - (*it2).first)/1000.0f, val)) ;
}
}
void RSGraphWidget::setShowEntry(uint32_t entry,bool b)
@ -231,6 +238,7 @@ RSGraphWidget::RSGraphWidget(QWidget *parent)
_opacity = 0.6 ;
_flags = 0;
_time_scale = 5.0f ; // in pixels per second.
_time_filter = 1.0f ;
_timer = new QTimer ;
QObject::connect(_timer,SIGNAL(timeout()),this,SLOT(updateIfPossible())) ;
@ -370,7 +378,8 @@ void RSGraphWidget::paintData()
if( _masked_entries.find(source.displayName(i).toStdString()) == _masked_entries.end() )
{
std::vector<QPointF> values ;
source.getDataPoints(i,values) ;
//std::cerr << "time filter = " << _time_filter << ", factor=" << 1./_time_scale*_time_filter/(1+_time_filter/_time_scale) << std::endl;
source.getDataPoints(i,values,1./_time_scale*_time_filter/(1.0f+_time_filter/_time_scale)) ;
QVector<QPointF> points ;
pointsFromData(values,points) ;
@ -452,11 +461,11 @@ void RSGraphWidget::pointsFromData(const std::vector<QPointF>& values,QVector<QP
if(points.size() > 1 && points[points.size()-2].y() == points.back().y() && points.back().y() == py)
points.pop_back() ;
// if(fabs(px - last_px)/_time_scale > min_x_no_data_threshold)
// {
// points << QPointF(last_px,y) ;
// points << QPointF(px,y) ;
// }
// if(fabs(px - last_px)/_time_scale > min_x_no_data_threshold)
// {
// points << QPointF(last_px,y) ;
// points << QPointF(px,y) ;
// }
points << QPointF(px,py) ;
@ -601,6 +610,12 @@ void RSGraphWidget::paintScale2()
void RSGraphWidget::wheelEvent(QWheelEvent *e)
{
if(e->modifiers() & Qt::ShiftModifier)
if(e->delta() > 0)
_time_filter *= 1.1 ;
else
_time_filter /= 1.1 ;
else
if(e->delta() > 0)
_time_scale *= 1.1 ;
else

11
retroshare-gui/src/gui/common/RSGraphWidget.h
View file

@ -73,7 +73,7 @@ public:
virtual QString legend(int i,float v) const ;
// Returns the n^th interpolated value at the given time in floating point seconds backward.
virtual void getDataPoints(int index, std::vector<QPointF>& pts) const ;
virtual void getDataPoints(int index, std::vector<QPointF>& pts, float filter_factor=0.0f) const ;
// returns the name to give to the nth entry in the graph
virtual QString displayName(int index) const ;
@ -113,7 +113,7 @@ class RSGraphWidget: public QFrame
{
Q_OBJECT
public:
public:
static const uint32_t RSGRAPH_FLAGS_AUTO_SCALE_Y = 0x0001 ;// automatically adjust Y scale
static const uint32_t RSGRAPH_FLAGS_LOG_SCALE_Y = 0x0002 ;// log scale in Y
static const uint32_t RSGRAPH_FLAGS_ALWAYS_COLLECT = 0x0004 ;// keep collecting while not displayed
@ -151,17 +151,17 @@ class RSGraphWidget: public QFrame
void setFlags(uint32_t flag) { _flags |= flag ; }
void resetFlags(uint32_t flag) { _flags &= ~flag ; }
protected:
protected:
/** Overloaded QWidget::paintEvent() */
void paintEvent(QPaintEvent *event);
virtual QSizeF sizeHint( Qt::SizeHint which, const QSizeF & constraint = QSizeF() ) const;
protected slots:
protected slots:
void updateIfPossible() ;
virtual void wheelEvent(QWheelEvent *e);
private:
private:
/** Gets the width of the desktop, the max # of points. */
int getNumPoints();
@ -207,6 +207,7 @@ class RSGraphWidget: public QFrame
std::set<std::string> _masked_entries ;
qreal _time_scale ; // horizontal scale in pixels per sec.
qreal _time_filter ; // time filter. Goes from 0 to infinity. Will be converted into 1-1/(1+f)
/** Show the respective lines and counters. */
//bool _showRSDHT;