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-rw-r--r--kpovmodeler/pmvectorcontrolpoint.cpp89
1 files changed, 89 insertions, 0 deletions
diff --git a/kpovmodeler/pmvectorcontrolpoint.cpp b/kpovmodeler/pmvectorcontrolpoint.cpp
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+++ b/kpovmodeler/pmvectorcontrolpoint.cpp
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+/*
+**************************************************************************
+ 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 "pmvectorcontrolpoint.h"
+#include "pmmath.h"
+#include <math.h>
+
+PMVectorControlPoint::PMVectorControlPoint( PMControlPoint* base,
+ const PMVector& v, int id,
+ const QString& description,
+ bool extraLine, bool normalize )
+ : PMControlPoint( id, description )
+{
+ m_vector = v;
+ m_pBasePoint = base;
+ m_extraLine = extraLine;
+ m_normalize = normalize;
+}
+
+PMVectorControlPoint::PMVectorControlPoint( const PMVector& base,
+ const PMVector& v, int id,
+ const QString& description,
+ bool extraLine, bool normalize )
+ : PMControlPoint( id, description )
+{
+ m_vector = v;
+ m_constBasePoint = base;
+ m_pBasePoint = 0;
+ m_extraLine = extraLine;
+ m_normalize = normalize;
+}
+
+PMVector PMVectorControlPoint::position( ) const
+{
+ return basePoint( ) + m_vector;
+}
+
+PMVector PMVectorControlPoint::basePoint( ) const
+{
+ if( m_pBasePoint )
+ return m_pBasePoint->position( );
+ return m_constBasePoint;
+}
+
+void PMVectorControlPoint::graphicalChangeStarted( )
+{
+ m_originalVector = m_vector;
+}
+
+void PMVectorControlPoint::graphicalChange( const PMVector& startPoint,
+ const PMVector& /*viewNormal*/,
+ const PMVector& endPoint )
+{
+ double d;
+
+ m_vector = m_originalVector + endPoint - startPoint;
+ if( m_normalize )
+ {
+ d = m_vector.abs( );
+ if( approxZero( d ) )
+ m_vector = m_originalVector;
+ else
+ m_vector /= d;
+ }
+}
+
+void PMVectorControlPoint::snapToGrid( )
+{
+ int i;
+ double d = moveGrid( );
+ if( !approxZero( d ) )
+ for( i = 0; i < 3; i++ )
+ m_vector[i] = rint( m_vector[i] / d ) * d;
+ setChanged( );
+}