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412 lines
12 KiB
412 lines
12 KiB
/*
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**************************************************************************
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pmsphere.cpp - description
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-------------------
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copyright : (C) 2001 by Philippe Van Hecke
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email : lephiloux@tiscalinet.be
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copyright : (C) 2001-2002 by Andreas Zehender
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email : zehender@kde.org
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**************************************************************************
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**************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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**************************************************************************/
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#include "pmsphere.h"
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#include "pmxmlhelper.h"
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#include "pmsphereedit.h"
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#include "pmmemento.h"
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#include "pm3dcontrolpoint.h"
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#include "pmdistancecontrolpoint.h"
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#include "pmdefaults.h"
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#include <tdelocale.h>
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/** default param for the sphere */
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const double c_defaultRadius = 0.5;
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const PMVector c_defaultCentre = PMVector( 0, 0, 0 );
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/** default sphere structure */
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PMViewStructure* PMSphere::s_pDefaultViewStructure = 0;
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int PMSphere::s_vStep = c_defaultSphereVSteps;
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int PMSphere::s_uStep = c_defaultSphereUSteps;
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int PMSphere::s_parameterKey = 0;
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PMDefinePropertyClass( PMSphere, PMSphereProperty );
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PMMetaObject* PMSphere::s_pMetaObject = 0;
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PMObject* createNewSphere( PMPart* part )
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{
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return new PMSphere( part );
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}
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PMSphere::PMSphere( PMPart* part )
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: Base( part )
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{
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m_radius = c_defaultRadius;
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m_centre = c_defaultCentre;
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}
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PMSphere::PMSphere( const PMSphere& s )
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: Base( s )
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{
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m_radius = s.m_radius;
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m_centre = s.m_centre;
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}
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PMSphere::~PMSphere( )
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{
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}
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TQString PMSphere::description( ) const
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{
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return i18n( "sphere" );
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}
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PMMetaObject* PMSphere::metaObject( ) const
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{
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if( !s_pMetaObject )
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{
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s_pMetaObject = new PMMetaObject( "Sphere", Base::metaObject( ),
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createNewSphere );
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s_pMetaObject->addProperty(
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new PMSphereProperty( "radius", &PMSphere::setRadius, &PMSphere::radius ) );
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s_pMetaObject->addProperty(
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new PMSphereProperty( "center", &PMSphere::setCentre, &PMSphere::centre ) );
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}
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return s_pMetaObject;
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}
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void PMSphere::serialize( TQDomElement& e, TQDomDocument& doc ) const
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{
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e.setAttribute( "centre", m_centre.serializeXML( ) );
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e.setAttribute( "radius", m_radius );
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Base::serialize( e, doc );
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}
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void PMSphere::readAttributes( const PMXMLHelper& h )
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{
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m_centre = h.vectorAttribute( "centre", c_defaultCentre );
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m_radius = h.doubleAttribute( "radius", c_defaultRadius );
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Base::readAttributes( h );
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}
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PMDialogEditBase* PMSphere::editWidget( TQWidget* parent ) const
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{
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return new PMSphereEdit( parent );
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}
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void PMSphere::restoreMemento( PMMemento* s )
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{
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PMMementoDataIterator it( s );
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PMMementoData* data;
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for( ; it.current( ); ++it )
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{
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data = it.current( );
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if( data->objectType( ) == s_pMetaObject )
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{
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switch( data->valueID( ) )
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{
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case PMRadiusID:
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setRadius( data->doubleData( ) );
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break;
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case PMCentreID:
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setCentre( data->vectorData( ) );
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break;
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default:
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kdError( PMArea ) << "Wrong ID in PSphere::restoreMemento\n";
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break;
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}
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}
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}
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Base::restoreMemento( s );
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}
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void PMSphere::controlPoints( PMControlPointList& list )
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{
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PM3DControlPoint* p = new PM3DControlPoint( m_centre, PMCentreID,
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i18n( "Center" ) );
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list.append( p );
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list.append( new PMDistanceControlPoint( p, PMVector( 1.0, 0.0, 0.0 ),
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m_radius, PMRadiusID,
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i18n( "Radius (x)" ) ) );
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list.append( new PMDistanceControlPoint( p, PMVector( 0.0, 1.0, 0.0 ),
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m_radius, PMRadiusID,
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i18n( "Radius (y)" ) ) );
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list.append( new PMDistanceControlPoint( p, PMVector( 0.0, 0.0, 1.0 ),
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m_radius, PMRadiusID,
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i18n( "Radius (z)" ) ) );
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}
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void PMSphere::controlPointsChanged( PMControlPointList& list )
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{
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PMControlPoint* p;
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bool radiusChanged = false;
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for( p = list.first( ); p; p = list.next( ) )
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{
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if( p->changed( ) )
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{
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switch( p->id( ) )
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{
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case PMCentreID:
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setCentre( ( ( PM3DControlPoint* ) p )->point( ) );
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break;
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case PMRadiusID:
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setRadius( ( ( PMDistanceControlPoint* ) p )->distance( ) );
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radiusChanged = true;
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break;
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default:
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kdError( PMArea ) << "Wrong ID in PMSphere::controlPointsChanged\n";
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break;
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}
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}
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}
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if( radiusChanged )
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for( p = list.first( ); p; p = list.next( ) )
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if( p->id( ) == PMRadiusID )
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( ( PMDistanceControlPoint* ) p )->setDistance( m_radius );
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}
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bool PMSphere::isDefault( )
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{
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if( ( m_radius == c_defaultRadius ) && ( m_centre == c_defaultCentre ) && globalDetail( ) )
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return true;
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return false;
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}
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void PMSphere::createViewStructure( )
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{
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if( !m_pViewStructure )
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{
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m_pViewStructure = new PMViewStructure( defaultViewStructure( ) );
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m_pViewStructure->points( ).detach( );
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}
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int uStep = (int)( ( (float)s_uStep / 2 ) * ( displayDetail( ) + 1 ) );
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int vStep = (int)( ( (float)s_vStep / 2 ) * ( displayDetail( ) + 1 ) );
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unsigned ptsSize = vStep * ( uStep - 1 ) + 2;
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unsigned lineSize = vStep * ( uStep - 1 ) * 2 + vStep;
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unsigned faceSize = vStep * uStep;
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if( ptsSize != m_pViewStructure->points( ).size( ) )
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m_pViewStructure->points( ).resize( ptsSize );
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createPoints( m_pViewStructure->points( ), m_centre, m_radius, uStep, vStep );
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if( lineSize != m_pViewStructure->lines( ).size( ) )
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{
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m_pViewStructure->lines( ).detach( );
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m_pViewStructure->lines( ).resize( lineSize );
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createLines( m_pViewStructure->lines( ), uStep, vStep );
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}
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if( faceSize != m_pViewStructure->faces( ).size( ) )
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{
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m_pViewStructure->faces( ).resize( faceSize );
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createFaces( m_pViewStructure->faces( ), uStep, vStep );
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}
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}
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PMViewStructure* PMSphere::defaultViewStructure( ) const
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{
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if( !s_pDefaultViewStructure || s_pDefaultViewStructure->parameterKey( ) != viewStructureParameterKey( ) )
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{
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delete s_pDefaultViewStructure;
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s_pDefaultViewStructure = 0;
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int uStep = (int)( ( (float)s_uStep / 2 ) * ( globalDetailLevel( ) + 1 ) );
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int vStep = (int)( ( (float)s_vStep / 2 ) * ( globalDetailLevel( ) + 1 ) );
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s_pDefaultViewStructure =
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new PMViewStructure( vStep * ( uStep - 1 ) + 2,
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vStep * ( uStep - 1 ) * 2 + vStep,
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vStep * uStep );
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// points
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createPoints( s_pDefaultViewStructure->points( ), c_defaultCentre,
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c_defaultRadius, uStep, vStep );
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//lines
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createLines( s_pDefaultViewStructure->lines( ), uStep, vStep );
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//faces
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createFaces( s_pDefaultViewStructure->faces( ), uStep, vStep );
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}
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return s_pDefaultViewStructure;
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}
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void PMSphere::createFaces( PMFaceArray& faces, int uStep, int vStep )
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{
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int u, v, offsetPt1, offsetPt2, offsetFace;
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offsetPt1 = vStep * ( uStep - 1 ) + 1;
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offsetPt2 = vStep * ( uStep - 2 ) + 1;
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offsetFace = vStep * ( uStep - 1 );
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for( v = 0; v < vStep - 1; ++v )
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{
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faces[v] = PMFace( 0, v + 2, v + 1 );
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faces[ offsetFace + v ] = PMFace( offsetPt1, v + offsetPt2, v + offsetPt2 + 1 );
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}
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faces[ vStep - 1 ] = PMFace( 0, 1, vStep );
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faces[ offsetFace + vStep - 1 ] = PMFace( offsetPt1, vStep + offsetPt2 - 1, offsetPt2 );
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offsetFace = vStep;
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for( u = 0; u < ( uStep - 2 ); ++u )
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{
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offsetPt1 = ( u * vStep ) + 1;
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offsetPt2 = ( ( u + 1 ) * vStep ) + 1;
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for( v = 0; v < ( vStep - 1 ); ++v )
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faces[ offsetFace + v ] = PMFace( v + offsetPt1, v + offsetPt1 + 1, v + offsetPt2 + 1, v + offsetPt2 );
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faces[ offsetFace + vStep - 1 ] = PMFace( offsetPt1 + vStep - 1, offsetPt1, offsetPt2, offsetPt2 + vStep - 1 );
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offsetFace += vStep;
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}
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}
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void PMSphere::createLines( PMLineArray& lines, int uStep, int vStep )
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{
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int u, v;
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int offset = 0;
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// horizontal lines
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for( u = 0; u < ( uStep - 1 ); u++ )
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{
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for( v = 0; v < ( vStep - 1 ); v++ )
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lines[offset + v] =
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PMLine( u * vStep + v + 1, u * vStep + v + 2 );
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lines[offset + vStep - 1] =
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PMLine( u * vStep + 1, u * vStep + vStep );
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offset += vStep;
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}
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// vertical lines
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// lines at the "north pole"
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for( v = 0; v < vStep; v++ )
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lines[offset + v] = PMLine( 0, v + 1 );
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offset += vStep;
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for( v = 0; v < vStep; v++ )
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{
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for( u = 0; u < ( uStep - 2 ); u++ )
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{
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lines[offset + u] =
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PMLine( u * vStep + v + 1, ( u + 1 ) * vStep + v + 1 );
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}
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offset += ( uStep - 2 );
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}
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// lines at the "south pole"
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for( v = 0; v < vStep; v++ )
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lines[offset + v] = PMLine( ( uStep - 2 ) * vStep + v + 1,
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( uStep - 1 ) * vStep + 1 );
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// offset += s_vStep;
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}
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void PMSphere::createPoints( PMPointArray& points, const PMVector& centre, double radius,
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int uStep, int vStep )
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{
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double l_UradStep = M_PI / uStep;
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double l_VradStep = ( 2.0 * M_PI ) / vStep;
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double l_u = l_UradStep;
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int u, v;
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points[0] = PMPoint( centre + PMVector( 0, radius, 0 ) );
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points[ vStep * ( uStep - 1 ) + 1] = PMPoint( centre - PMVector( 0, radius, 0 ) );
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for( u = 0; u < ( uStep - 1 ); u++ )
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{
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double l_v = 0.0;
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double l_rcosu = radius * sin( l_u );
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double y = ( radius * cos( l_u ) ) + centre[1];
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for( v = 0; v < vStep ; v++ )
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{
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double x = ( l_rcosu * cos( l_v ) ) + centre[0];
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double z = ( l_rcosu * sin( l_v ) ) + centre[2];
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points[u * vStep + v + 1] = PMPoint( x, y, z );
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l_v = l_v + l_VradStep;
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}
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l_u = l_u + l_UradStep;
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}
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}
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void PMSphere::setRadius( double radius )
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{
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if( m_radius != radius )
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{
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if( m_pMemento )
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m_pMemento->addData( s_pMetaObject, PMRadiusID, m_radius );
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m_radius = radius;
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setViewStructureChanged( );
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}
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}
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void PMSphere::setCentre( const PMVector& centre )
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{
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if( m_centre != centre )
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{
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if( m_pMemento )
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m_pMemento->addData( s_pMetaObject, PMCentreID, m_centre );
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m_centre = centre;
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setViewStructureChanged( );
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}
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}
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void PMSphere::setUSteps( int u )
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{
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if( u >= 2 )
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{
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s_uStep = u;
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if( s_pDefaultViewStructure )
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{
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delete s_pDefaultViewStructure;
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s_pDefaultViewStructure = 0;
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}
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}
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else
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kdDebug( PMArea ) << "PMSPhere::setUSteps: U must be greater than 1\n";
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s_parameterKey++;
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}
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void PMSphere::setVSteps( int v )
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{
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if( v >= 4 )
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{
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s_vStep = v;
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if( s_pDefaultViewStructure )
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{
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delete s_pDefaultViewStructure;
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s_pDefaultViewStructure = 0;
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}
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}
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else
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kdDebug( PMArea ) << "PMSphere::setVSteps: V must be greater than 3\n";
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s_parameterKey++;
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}
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void PMSphere::cleanUp( ) const
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{
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if( s_pDefaultViewStructure )
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delete s_pDefaultViewStructure;
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s_pDefaultViewStructure = 0;
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if( s_pMetaObject )
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{
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delete s_pMetaObject;
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s_pMetaObject = 0;
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}
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Base::cleanUp( );
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}
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