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Diffstat (limited to 'kpovmodeler/pm2dcontrolpoint.cpp')
| -rw-r--r-- | kpovmodeler/pm2dcontrolpoint.cpp | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/kpovmodeler/pm2dcontrolpoint.cpp b/kpovmodeler/pm2dcontrolpoint.cpp new file mode 100644 index 00000000..66e7a85a --- /dev/null +++ b/kpovmodeler/pm2dcontrolpoint.cpp @@ -0,0 +1,207 @@ +/* +************************************************************************** + description + -------------------- + copyright : (C) 2000-2001 by Andreas Zehender + email : zehender@kde.org +************************************************************************** + +************************************************************************** +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License as published by * +* the Free Software Foundation; either version 2 of the License, or * +* (at your option) any later version. * +* * +**************************************************************************/ + +#include "pm2dcontrolpoint.h" +#include "pmmath.h" +#include <math.h> + +PM2DControlPoint::PM2DControlPoint( const PMVector& point, + PM2DControlPoint::CPType type, int id, + const QString& description ) + : PMControlPoint( id, description ) +{ + m_point = point; + m_type = type; + m_thirdCoordinate = 0; + m_scale = 1.0; + m_pBasePoint = 0; + m_pLatheLink = 0; +} + +void PM2DControlPoint::graphicalChangeStarted( ) +{ + QPtrListIterator<PM2DControlPoint> it( m_linkedPoints ); + for( ; *it; ++it ) + if( !( *it )->selected( ) ) + ( *it )->graphicalChangeStarted( ); + + m_original2DPoint = m_point; + m_originalPoint = to3D( m_point ); +} + +void PM2DControlPoint::graphicalChange( const PMVector& startPoint, + const PMVector& /*viewNormal*/, + const PMVector& endPoint ) +{ + if( m_pBasePoint && m_pBasePoint->selected( ) ) + return; + + m_point = to2D( m_originalPoint + endPoint - startPoint ); + + if( m_pLatheLink && m_pLatheLink->selected( ) ) + { + PM2DControlPoint* ll = m_pLatheLink; + PMVector op = ll->to2D( ll->m_originalPoint + endPoint - startPoint ); + + m_point = to2D( m_originalPoint + endPoint - startPoint ); + if( ( m_point - m_original2DPoint ).abs( ) < + ( op - ll->m_original2DPoint ).abs( ) ) + m_point = op; + } + + QPtrListIterator<PM2DControlPoint> it( m_linkedPoints ); + for( ; *it; ++it ) + { + ( *it )->m_point = m_point + ( *it )->m_original2DPoint + - m_original2DPoint; + ( *it )->setChanged( ); + } +} + +void PM2DControlPoint::setBasePoint( PM2DControlPoint* p ) +{ + if( p != m_pBasePoint ) + { + if( m_pBasePoint ) + m_pBasePoint->removeLinkedPoint( this ); + m_pBasePoint = p; + if( m_pBasePoint ) + m_pBasePoint->addLinkedPoint( this ); + } +} + +void PM2DControlPoint::snapToGrid( ) +{ + int i; + double d = moveGrid( ); + bool diff = false; + PMVector change( 2 ); + + if( m_pBasePoint && m_pBasePoint->selected( ) ) + { + m_point -= m_pBasePoint->m_point; + diff = true; + } + + if( !approxZero( d ) ) + { + for( i = 0; i < 2; i++ ) + { + change[i] = -m_point[i]; + m_point[i] = rint( m_point[i] / d ) * d; + change[i] += m_point[i]; + } + } + + if( diff ) + m_point += m_pBasePoint->m_point; + + QPtrListIterator<PM2DControlPoint> it( m_linkedPoints ); + for( ; *it; ++it ) + { + ( *it )->m_point += change; + ( *it )->setChanged( ); + } + + setChanged( ); +} + +PMVector PM2DControlPoint::to2D( const PMVector& v ) const +{ + PMVector result( 2 ); + switch( m_type ) + { + case PM2DXY: + result[0] = v[0]; + result[1] = v[1]; + break; + case PM2DXZ: + result[0] = v[0]; + result[1] = v[2]; + break; + case PM2DYZ: + result[0] = v[1]; + result[1] = v[2]; + break; + case PM2DYX: + result[0] = v[1]; + result[1] = v[0]; + break; + case PM2DZX: + result[0] = v[2]; + result[1] = v[0]; + break; + case PM2DZY: + result[0] = v[2]; + result[1] = v[1]; + break; + } + if( !approxZero( m_scale ) ) + result /= m_scale; + return result; +} + +PMVector PM2DControlPoint::to3D( const PMVector& v ) const +{ + PMVector vec( v * m_scale ); + PMVector result( 3 ); + switch( m_type ) + { + case PM2DXY: + result[0] = vec[0]; + result[1] = vec[1]; + result[2] = m_thirdCoordinate; + break; + case PM2DXZ: + result[0] = vec[0]; + result[1] = m_thirdCoordinate; + result[2] = vec[1]; + break; + case PM2DYZ: + result[0] = m_thirdCoordinate; + result[1] = vec[0]; + result[2] = vec[1]; + break; + case PM2DYX: + result[1] = vec[0]; + result[0] = vec[1]; + result[2] = m_thirdCoordinate; + break; + case PM2DZX: + result[2] = vec[0]; + result[0] = vec[1]; + result[1] = m_thirdCoordinate; + break; + case PM2DZY: + result[2] = vec[0]; + result[1] = vec[1]; + result[0] = m_thirdCoordinate; + break; + } + return result; +} + +void PM2DControlPoint::addLinkedPoint( PM2DControlPoint* p ) +{ + if( !m_linkedPoints.containsRef( p ) ) + m_linkedPoints.append( p ); +} + +void PM2DControlPoint::removeLinkedPoint( PM2DControlPoint* p ) +{ + m_linkedPoints.removeRef( p ); +} |