measure_angle.diff

path for measure angle tool. - Sergey Yakushev, 2011-06-09 11:40 PM

Download (4.28 KB)

View differences:

src/app/qgsmaptoolmeasureangle.cpp
45 45 
  mRubberBand->movePoint( point );
46 46 
  if ( mAnglePoints.size() == 2 )
47 47 
  {
48 
    if ( !mResultDisplay )
48 
    if ( !mResultDisplay->isVisible() )
49 49 
    {
50 
      mResultDisplay = new QgsDisplayAngle( mCanvas->topLevelWidget() );
51 
      QObject::connect( mResultDisplay, SIGNAL( rejected() ), this, SLOT( stopMeasuring() ) );
52 
      QObject::connect( mResultDisplay, SIGNAL( changeProjectionEnabledState() ),
53 
                        this, SLOT( changeProjectionEnabledState() ) );
54 50 
      mResultDisplay->move( e->pos() - QPoint( 100, 100 ) );
51 
      mResultDisplay->show();
55 52 
    }
56 
    mResultDisplay->show();
57 

  		




  58
  
  
    
    QgsDistanceArea myDa;

  		




  59
  
  
    
    configureDistanceArea( myDa );

  		




  60
  53
  
    

  		




  61
  54
  
    
    //angle calculation

  		




  62
  
  
    
    double azimuthOne = myDa.bearing( mAnglePoints.at( 1 ), mAnglePoints.at( 0 ) );

  		




  63
  
  
    
    double azimuthTwo = myDa.bearing( mAnglePoints.at( 1 ), point );

  		




  
  55
  
    
    double azimuthOne = mDa.bearing( mAnglePoints.at( 1 ), mAnglePoints.at( 0 ) );

  		




  
  56
  
    
    double azimuthTwo = mDa.bearing( mAnglePoints.at( 1 ), point );

  		




  64
  57
  
    
    double resultAngle = azimuthTwo - azimuthOne;

  		




  65
  58
  
    
    QgsDebugMsg( QString::number( qAbs( resultAngle ) ) );

  		




  66
  59
  
    
    QgsDebugMsg( QString::number( M_PI ) );

  		




  ......




  90
  83
  
    

  		




  91
  84
  
    
  if ( mAnglePoints.size() < 1 )

  		




  92
  85
  
    
  {

  		




  
  86
  
    
    if ( mResultDisplay == NULL )

  		




  
  87
  
    
    {

  		




  
  88
  
    
      mResultDisplay = new QgsDisplayAngle( mCanvas->topLevelWidget() );

  		




  
  89
  
    
      QObject::connect( mResultDisplay, SIGNAL( rejected() ), this, SLOT( stopMeasuring() ) );

  		




  
  90
  
    
      QObject::connect( mResultDisplay, SIGNAL( changeProjectionEnabledState() ),

  		




  
  91
  
    
                        this, SLOT( changeProjectionEnabledState() ) );

  		




  
  92
  
    
    }

  		




  
  93
  
    
    configureDistanceArea();

  		




  93
  94
  
    
    createRubberBand();

  		




  94
  95
  
    
  }

  		




  95
  96
  
    

  		




  ......




  153
  154
  
    
  if ( !mResultDisplay )

  		




  154
  155
  
    
    return;

  		




  155
  156
  
    

  		




  156
  
  
    
  QgsDistanceArea myDa;

  		




  157
  
  
    
  configureDistanceArea( myDa );

  		




  
  157
  
    
  configureDistanceArea();

  		




  158
  158
  
    

  		




  159
  159
  
    
  //angle calculation

  		




  160
  
  
    
  double azimuthOne = myDa.bearing( mAnglePoints.at( 1 ), mAnglePoints.at( 0 ) );

  		




  161
  
  
    
  double azimuthTwo = myDa.bearing( mAnglePoints.at( 1 ), mAnglePoints.at( 2 ) );

  		




  
  160
  
    
  double azimuthOne = mDa.bearing( mAnglePoints.at( 1 ), mAnglePoints.at( 0 ) );

  		




  
  161
  
    
  double azimuthTwo = mDa.bearing( mAnglePoints.at( 1 ), mAnglePoints.at( 2 ) );

  		




  162
  162
  
    
  double resultAngle = azimuthTwo - azimuthOne;

  		




  163
  163
  
    
  QgsDebugMsg( QString::number( fabs( resultAngle ) ) );

  		




  164
  164
  
    
  QgsDebugMsg( QString::number( M_PI ) );

  		




  ......




  177
  177
  
    

  		




  178
  178
  
    
}

  		




  179
  179
  
    

  		




  180
  
  
    
void QgsMapToolMeasureAngle::configureDistanceArea( QgsDistanceArea& da )

  		




  
  180
  
    
void QgsMapToolMeasureAngle::configureDistanceArea()

  		




  181
  181
  
    
{

  		




  182
  182
  
    
  QSettings settings;

  		




  183
  183
  
    
  QString ellipsoidId = settings.value( "/qgis/measure/ellipsoid", "WGS84" ).toString();

  		




  184
  
  
    
  da.setSourceCrs( mCanvas->mapRenderer()->destinationCrs().srsid() );

  		




  185
  
  
    
  da.setEllipsoid( ellipsoidId );

  		




  186
  
  
    
  da.setProjectionsEnabled( mResultDisplay->projectionEnabled() );

  		




  
  184
  
    
  mDa.setSourceCrs( mCanvas->mapRenderer()->destinationCrs().srsid() );

  		




  
  185
  
    
  mDa.setEllipsoid( ellipsoidId );

  		




  
  186
  
    
  mDa.setProjectionsEnabled( mResultDisplay->projectionEnabled() );

  		




  187
  187
  
    
}

  		




  188
  188
  
    

  		




  189
  189
  
    

  		












  

    
      src/app/qgsmaptoolmeasureangle.h
    
  





  19
  19
  
    
#include "qgsmaptool.h"

  		




  20
  20
  
    
#include "qgsmapcanvassnapper.h"

  		




  21
  21
  
    
#include "qgspoint.h"

  		




  
  22
  
    
#include "qgsdistancearea.h"

  		




  22
  23
  
    

  		




  23
  24
  
    
class QgsDisplayAngle;

  		




  24
  25
  
    
class QgsRubberBand;

  		




  ......




  54
  55
  
    
    void createRubberBand();

  		




  55
  56
  
    
    /**Snaps point to background layers*/

  		




  56
  57
  
    
    QgsPoint snapPoint( const QPoint& p );

  		




  
  58
  
    
    

  		




  
  59
  
    
    /** tool for measuring */

  		




  
  60
  
    
    QgsDistanceArea mDa;

  		




  57
  61
  
    

  		




  58
  62
  
    
  private slots:

  		




  59
  63
  
    
    /**Deletes the rubber band and the dialog*/

  		




  ......




  63
  67
  
    
    void changeProjectionEnabledState();

  		




  64
  68
  
    

  		




  65
  69
  
    
    //! Configures distance area objects with ellipsoid / output crs

  		




  66
  
  
    
    void configureDistanceArea( QgsDistanceArea& da );

  		




  
  70
  
    
    void configureDistanceArea();

  		




  67
  71
  
    

  		




  68
  72
  
    
};

  		




  69
  73