Reducing accelerometer sensor noise with Qt - Revision history

Hamishwillee: Text replace - "`" to ""`


2012-10-11T01:23:31Z
Text replace - "<code cpp>" to "<code cpp-qt>"

			
			
			
			
		
		← Older revision
		Revision as of 01:23, 11 October 2012
		
Line 13:
Line 13:
  == Sources ==     == Sources ==  
  '''accelerometerfilter.h'''       '''accelerometerfilter.h'''    
− <code cpp>    + <code cpp-qt>   
  #include <QAccelerometerFilter>     #include <QAccelerometerFilter>  
  #include <QList>     #include <QList>  
Line 35:
Line 35:
    
  '''accelerometerfilter.cpp'''   '''accelerometerfilter.cpp'''
− <code cpp>    + <code cpp-qt>   
  #include "accelerometerfilter.h"      #include "accelerometerfilter.h"   
    
Line 68:
Line 68:
    
  '''myaccelerometer.h'''   '''myaccelerometer.h'''
− <code cpp>    + <code cpp-qt>   
  #include <QAccelerometer>     #include <QAccelerometer>  
  #include <QVariant>      #include <QVariant>   
Line 87:
Line 87:
    
  '''myaccelerometer.cpp'''       '''myaccelerometer.cpp'''    
− <code cpp>    + <code cpp-qt>   
  #include <QAccelerometerReading>     #include <QAccelerometerReading>  
  #include "myaccelerometer.h"     #include "myaccelerometer.h"



Hamishwillee: Text replace - "Category:MeeGo" to "Category:MeeGo Harmattan"
2012-06-13T10:58:00Z
Text replace - "Category:MeeGo" to "Category:MeeGo Harmattan"

			
			
			
			
		
		← Older revision
		Revision as of 10:58, 13 June 2012
		
Line 121:
Line 121:
  |id= <!-- Article Id (Knowledge base articles only) -->     |id= <!-- Article Id (Knowledge base articles only) -->  
  |creationdate=Jul 04, 2011 <!-- Format DD month, YYYY -->     |creationdate=Jul 04, 2011 <!-- Format DD month, YYYY -->  
− |author=[[User:makivioj]] <!-- Display as link [[User:username]] --> }}[[Category:MeeGo]] [[Category:Symbian]] + |author=[[User:makivioj]] <!-- Display as link [[User:username]] --> }}[[Category:MeeGo Harmattan]] [[Category:Symbian]]




Hamishwillee: Hamishwillee - Addition to article of: Category:MeeGo Category:Symbian. (Add platform categories)
2012-02-15T05:34:57Z
Hamishwillee - Addition to article of: Category:MeeGo Category:Symbian. (Add platform categories)

			
			
			
			
		
		← Older revision
		Revision as of 05:34, 15 February 2012
		
Line 121:
Line 121:
  |id= <!-- Article Id (Knowledge base articles only) -->     |id= <!-- Article Id (Knowledge base articles only) -->  
  |creationdate=Jul 04, 2011 <!-- Format DD month, YYYY -->     |creationdate=Jul 04, 2011 <!-- Format DD month, YYYY -->  
− |author=[[User:makivioj]] <!-- Display as link [[User:username]] --> }} + |author=[[User:makivioj]] <!-- Display as link [[User:username]] --> }}[[Category:MeeGo]] [[Category:Symbian]]



Hamishwillee: Hamishwillee - Bot fixing redirect link.
2011-11-22T06:35:31Z
Hamishwillee - Bot fixing redirect link.

			
			
			
			
		
		← Older revision
		Revision as of 06:35, 22 November 2011
		
Line 3:
Line 3:
    
  == Introduction ==        == Introduction ==     
− In the [http://www.developer.nokia.com/Community/Wiki/CS000915_-_Reducing_accelerometer_sensor_noise CS000915 - Reducing accelerometer sensor noise] code snippet, it was shown how to reduce accelerometer noise in Symbian/C++. This code snippet will show how this same noise filtering can be achieved using [[Qt]]. You can refer the code example [https://www.developer.nokia.com/Resources/Code_examples/ Qt Bubble Level v1.3] also where sensor noise reduction is shown. + In the [http://www.developer.nokia.com/Community/Wiki/CS000915_-_Reducing_accelerometer_sensor_noise CS000915 - Reducing accelerometer sensor noise] code snippet, it was shown how to reduce accelerometer noise in Symbian/C++. This code snippet will show how this same noise filtering can be achieved using [[Qt]]. You can refer the code example [http://www.developer.nokia.com/Resources/Code_examples/ Qt Bubble Level v1.3] also where sensor noise reduction is shown.
    
  == Summary ==     == Summary ==  




Girishpadia: Girishpadia - /* Introduction */
2011-08-03T03:00:45Z
Girishpadia - - Introduction

			
			
			
			
		
		← Older revision
		Revision as of 03:00, 3 August 2011
		
Line 2:
Line 2:
  {{Abstract|This code snippet shows how to reduce accelerometer noise using Qt.}}   {{Abstract|This code snippet shows how to reduce accelerometer noise using Qt.}}
    
− == Introduction ==   + == Introduction ==    
− In the [http://www.developer.nokia.com/Community/Wiki/CS000915_-_Reducing_accelerometer_sensor_noise CS000915 - Reducing accelerometer sensor noise] code snippet, it was shown how to reduce accelerometer noise in Symbian/C++. This code snippet will show how this same noise filtering can be achieved using [[Qt]]. + In the [http://www.developer.nokia.com/Community/Wiki/CS000915_-_Reducing_accelerometer_sensor_noise CS000915 - Reducing accelerometer sensor noise] code snippet, it was shown how to reduce accelerometer noise in Symbian/C++. This code snippet will show how this same noise filtering can be achieved using [[Qt]]. You can refer the code example [https://www.developer.nokia.com/Resources/Code_examples/ Qt Bubble Level v1.3] also where sensor noise reduction is shown.
    
  == Summary ==     == Summary ==  



Hamishwillee: Hamishwillee - Remove platform specifier categories (only need specifier for Qt if there is some platform specific behaviour)
2011-07-20T04:29:34Z
Hamishwillee - Remove platform specifier categories (only need specifier for Qt if there is some platform specific behaviour)

			
			
			
			
		
		← Older revision
		Revision as of 04:29, 20 July 2011
		
Line 1:
Line 1:
− [[Category:Maemo]][[Category:MeeGo]][[Category:Qt]][[Category:Qt Mobility]][[Category:Symbian]] + [[Category:Qt Mobility]]
  {{Abstract|This code snippet shows how to reduce accelerometer noise using Qt.}}   {{Abstract|This code snippet shows how to reduce accelerometer noise using Qt.}}
    



Somnathbanik: Somnathbanik - /* Introduction */
2011-07-19T13:43:13Z
Somnathbanik - - Introduction

			
			
			
			
		
		← Older revision
		Revision as of 13:43, 19 July 2011
		
Line 3:
Line 3:
    
  == Introduction ==     == Introduction ==  
− In the [http://www.developer.nokia.com/Community/Wiki/CS000915_-_Reducing_accelerometer_sensor_noise CS000915 - Reducing accelerometer sensor noise] code snippet, it was shown how to reduce accelerometer noise in Symbian/C++. This code snippet will show how this same noise filtering can be achieved using Qt. + In the [http://www.developer.nokia.com/Community/Wiki/CS000915_-_Reducing_accelerometer_sensor_noise CS000915 - Reducing accelerometer sensor noise] code snippet, it was shown how to reduce accelerometer noise in Symbian/C++. This code snippet will show how this same noise filtering can be achieved using [[Qt]].
    
  == Summary ==     == Summary ==  



Croozeus: Croozeus - /* Preconditions */
2011-07-05T09:00:08Z
Croozeus - - Preconditions

			
			
			
			
		
		← Older revision
		Revision as of 09:00, 5 July 2011
		
Line 9:
Line 9:
    
  == Preconditions ==   == Preconditions ==
− Qt 4.7 or higher is installed. + * Qt 4.7 or higher is installed.
    
  == Sources ==     == Sources ==  



Makivioj: Makivioj -
2011-07-04T13:28:02Z
Makivioj -

			
			
			
			
		
		← Older revision
		Revision as of 13:28, 4 July 2011
		
Line 48:
Line 48:
            readingBuffer->append(reading);             readingBuffer->append(reading);
            bufferPos++;             bufferPos++;
−           return false; +           return false; // Don't send a notification yet
        }         }
        else {         else {
Line 62:
Line 62:
            reading->setY(ySum / BUFFER_SIZE);             reading->setY(ySum / BUFFER_SIZE);
            reading->setZ(zSum / BUFFER_SIZE);             reading->setZ(zSum / BUFFER_SIZE);
−           return true; +           return true; // Send a notification that the reading has changed
        }         }
  }   }
Line 94:
Line 94:
  MyAccelerometer::MyAccelerometer(QObject *parent) :   MyAccelerometer::MyAccelerometer(QObject *parent) :
        QObject(parent), accelerometer(new QAccelerometer(this)) {         QObject(parent), accelerometer(new QAccelerometer(this)) {
−       accelerometer->addFilter(new AccelerometerFilter(this)); +       accelerometer->addFilter(new AccelerometerFilter(this)); // Adding the filter
        connect(accelerometer, SIGNAL(readingChanged()), this, SLOT(updateAcceleration()));         connect(accelerometer, SIGNAL(readingChanged()), this, SLOT(updateAcceleration()));
        accelerometer->start();         accelerometer->start();



Makivioj: Makivioj - /* Sources */
2011-07-04T13:16:23Z
Makivioj - - Sources

			
			
			
			
		
		← Older revision
		Revision as of 13:16, 4 July 2011
		
Line 81:
Line 81:
        QAccelerometer *accelerometer;            QAccelerometer *accelerometer;   
  signals:   signals:
−       void accelerationChanged(QVariant, QVariant, QVariant); 	   +       void accelerationChanged(qreal, qreal, qreal); 	  
  public slots:   public slots:
        void updateAcceleration();         void updateAcceleration();
Line 101:
Line 101:
  void MyAccelerometer::updateAcceleration() {   void MyAccelerometer::updateAcceleration() {
        QAccelerometerReading *reading = accelerometer->reading();         QAccelerometerReading *reading = accelerometer->reading();
−       emit accelerationChanged(QVariant(reading->x()), QVariant(reading->y()), QVariant(reading->z())); +       emit accelerationChanged(reading->x(), reading->y(), reading->z());
  }   }
  </code>   </code>

← Older revision		Revision as of 04:29, 20 July 2011
Line 1:		Line 1:
−	~~[[Category:Maemo]][[Category:MeeGo]][[Category:Qt]]~~[[Category:Qt Mobility~~]][[Category:Symbian~~]]	+	[[Category:Qt Mobility]]
	{{Abstract\|This code snippet shows how to reduce accelerometer noise using Qt.}}		{{Abstract\|This code snippet shows how to reduce accelerometer noise using Qt.}}

Reducing accelerometer sensor noise with Qt - Revision history

Hamishwillee: Text replace - "" to ""

Hamishwillee: Text replace - "Category:MeeGo" to "Category:MeeGo Harmattan"

Hamishwillee: Hamishwillee - Addition to article of: Category:MeeGo Category:Symbian. (Add platform categories)

Hamishwillee: Hamishwillee - Bot fixing redirect link.

Girishpadia: Girishpadia - /* Introduction */

Hamishwillee: Hamishwillee - Remove platform specifier categories (only need specifier for Qt if there is some platform specific behaviour)

Somnathbanik: Somnathbanik - /* Introduction */

Croozeus: Croozeus - /* Preconditions */

Makivioj: Makivioj -

Makivioj: Makivioj - /* Sources */

Hamishwillee: Text replace - "`" to ""`