NetChart.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
 
#include "NetChart.hxx"
#include <PlottingPositionHelper.hxx>
#include <ShapeFactory.hxx>
#include <ExplicitCategoriesProvider.hxx>
#include <CommonConverters.hxx>
#include <ObjectIdentifier.hxx>
#include <LabelPositionHelper.hxx>
#include <Clipping.hxx>
#include <PolarLabelPositionHelper.hxx>
#include <DateHelper.hxx>
#include <ChartType.hxx>
 
#include <com/sun/star/chart2/Symbol.hpp>
#include <com/sun/star/chart/DataLabelPlacement.hpp>
#include <com/sun/star/chart/MissingValueTreatment.hpp>
 
#include <o3tl/safeint.hxx>
#include <osl/diagnose.h>
 
#include <officecfg/Office/Compatibility.hxx>
 
#include <limits>
 
namespace chart
{
using namespace ::com::sun::star;
using namespace ::com::sun::star::chart2;
 
NetChart::NetChart( const rtl::Reference<ChartType>& xChartTypeModel
                     , sal_Int32 nDimensionCount
                     , bool bNoArea
                     , std::unique_ptr<PlottingPositionHelper> pPlottingPositionHelper
                     )
        : VSeriesPlotter( xChartTypeModel, nDimensionCount, true )
        , m_pMainPosHelper(std::move(pPlottingPositionHelper))
        , m_bArea(!bNoArea)
        , m_bLine(bNoArea)
{
    // we only support 2D Net charts
    assert(nDimensionCount == 2);
 
    m_pMainPosHelper->AllowShiftXAxisPos(true);
    m_pMainPosHelper->AllowShiftZAxisPos(true);
 
    PlotterBase::m_pPosHelper = m_pMainPosHelper.get();
    VSeriesPlotter::m_pMainPosHelper = m_pMainPosHelper.get();
}
 
NetChart::~NetChart()
{
}
 
double NetChart::getMaximumX()
{
    double fMax = VSeriesPlotter::getMaximumX() + 1.0;
    return fMax;
}
 
bool NetChart::isExpandIfValuesCloseToBorder( sal_Int32 )
{
    return false;
}
 
bool NetChart::isSeparateStackingForDifferentSigns( sal_Int32 /*nDimensionIndex*/ )
{
    // no separate stacking in all types of line/area charts
    return false;
}
 
LegendSymbolStyle NetChart::getLegendSymbolStyle()
{
    if( m_bArea )
        return LegendSymbolStyle::Box;
    return LegendSymbolStyle::Line;
}
 
uno::Any NetChart::getExplicitSymbol( const VDataSeries& rSeries, sal_Int32 nPointIndex )
{
    uno::Any aRet;
 
    Symbol* pSymbolProperties = rSeries.getSymbolProperties( nPointIndex );
    if( pSymbolProperties )
    {
        aRet <<= *pSymbolProperties;
    }
 
    return aRet;
}
 
drawing::Direction3D NetChart::getPreferredDiagramAspectRatio() const
{
    return drawing::Direction3D(1,1,1);
}
 
bool NetChart::impl_createLine( VDataSeries* pSeries
                , const std::vector<std::vector<css::drawing::Position3D>>* pSeriesPoly
                , PlottingPositionHelper const * pPosHelper )
{
    //return true if a line was created successfully
    rtl::Reference<SvxShapeGroupAnyD> xSeriesGroupShape_Shapes = getSeriesGroupShapeBackChild(pSeries, m_xSeriesTarget);
 
    std::vector<std::vector<css::drawing::Position3D>> aPoly;
    {
        bool bIsClipped = false;
        if( !ShapeFactory::isPolygonEmptyOrSinglePoint(*pSeriesPoly) )
        {
            // do NOT connect last and first point, if one is NAN, and NAN handling is NAN_AS_GAP
            double fFirstY = pSeries->getYValue( 0 );
            double fLastY = pSeries->getYValue( VSeriesPlotter::getPointCount() - 1 );
            if( (pSeries->getMissingValueTreatment() != css::chart::MissingValueTreatment::LEAVE_GAP)
                || (std::isfinite( fFirstY ) && std::isfinite( fLastY )) )
            {
                // connect last point in last polygon with first point in first polygon
                ::basegfx::B2DRectangle aScaledLogicClipDoubleRect( pPosHelper->getScaledLogicClipDoubleRect() );
                std::vector<std::vector<css::drawing::Position3D>> aTmpPoly(*pSeriesPoly);
                drawing::Position3D aLast(aScaledLogicClipDoubleRect.getMaxX(),aTmpPoly[0][0].PositionY,aTmpPoly[0][0].PositionZ);
                // add connector line to last polygon
                AddPointToPoly( aTmpPoly, aLast, pSeriesPoly->size() - 1 );
                Clipping::clipPolygonAtRectangle( aTmpPoly, aScaledLogicClipDoubleRect, aPoly );
                bIsClipped = true;
            }
        }
 
        if( !bIsClipped )
            Clipping::clipPolygonAtRectangle( *pSeriesPoly, pPosHelper->getScaledLogicClipDoubleRect(), aPoly );
    }
 
    if(!ShapeFactory::hasPolygonAnyLines(aPoly))
        return false;
 
    //transformation 3) -> 4)
    pPosHelper->transformScaledLogicToScene( aPoly );
 
    //create line:
    rtl::Reference<SvxShapePolyPolygon> xShape;
    {
        xShape = ShapeFactory::createLine2D( xSeriesGroupShape_Shapes, aPoly );
        PropertyMapper::setMappedProperties( *xShape
                , pSeries->getPropertiesOfSeries()
                , PropertyMapper::getPropertyNameMapForLineSeriesProperties() );
        //because of this name this line will be used for marking
        ::chart::ShapeFactory::setShapeName(xShape, "MarkHandles");
    }
    return true;
}
 
bool NetChart::impl_createArea( VDataSeries* pSeries
                , const std::vector<std::vector<css::drawing::Position3D>>* pSeriesPoly
                , std::vector<std::vector<css::drawing::Position3D>> const * pPreviousSeriesPoly
                , PlottingPositionHelper const * pPosHelper )
{
    //return true if an area was created successfully
 
    rtl::Reference<SvxShapeGroupAnyD> xSeriesGroupShape_Shapes = getSeriesGroupShapeBackChild(pSeries, m_xSeriesTarget);
    double zValue = pSeries->m_fLogicZPos;
 
    std::vector<std::vector<css::drawing::Position3D>> aPoly( *pSeriesPoly );
    //add second part to the polygon (grounding points or previous series points)
    if( !ShapeFactory::isPolygonEmptyOrSinglePoint(*pSeriesPoly) )
    {
        if( pPreviousSeriesPoly )
            addPolygon( aPoly, *pPreviousSeriesPoly );
    }
    else if(!pPreviousSeriesPoly)
    {
        double fMinX = pSeries->m_fLogicMinX;
        double fMaxX = pSeries->m_fLogicMaxX;
        double fY = pPosHelper->getBaseValueY();//logic grounding
 
        //clip to scale
        if(fMaxX<pPosHelper->getLogicMinX() || fMinX>pPosHelper->getLogicMaxX())
            return false;//no visible shape needed
        pPosHelper->clipLogicValues( &fMinX, &fY, nullptr );
        pPosHelper->clipLogicValues( &fMaxX, nullptr, nullptr );
 
        //apply scaling
        {
            pPosHelper->doLogicScaling( &fMinX, &fY, &zValue );
            pPosHelper->doLogicScaling( &fMaxX, nullptr, nullptr );
        }
 
        AddPointToPoly( aPoly, drawing::Position3D( fMaxX,fY,zValue) );
        AddPointToPoly( aPoly, drawing::Position3D( fMinX,fY,zValue) );
    }
    else
    {
        appendPoly( aPoly, *pPreviousSeriesPoly );
    }
    ShapeFactory::closePolygon(aPoly);
 
    //apply clipping
    {
        std::vector<std::vector<css::drawing::Position3D>> aClippedPoly;
        Clipping::clipPolygonAtRectangle( aPoly, pPosHelper->getScaledLogicClipDoubleRect(), aClippedPoly, false );
        ShapeFactory::closePolygon(aClippedPoly); //again necessary after clipping
        aPoly = aClippedPoly;
    }
 
    if(!ShapeFactory::hasPolygonAnyLines(aPoly))
        return false;
 
    //transformation 3) -> 4)
    pPosHelper->transformScaledLogicToScene( aPoly );
 
    //create area:
    rtl::Reference<SvxShapePolyPolygon>
        xShape = ShapeFactory::createArea2D( xSeriesGroupShape_Shapes
                , aPoly );
    PropertyMapper::setMappedProperties( *xShape
                , pSeries->getPropertiesOfSeries()
                , PropertyMapper::getPropertyNameMapForFilledSeriesProperties() );
    //because of this name this line will be used for marking
    ::chart::ShapeFactory::setShapeName(xShape, "MarkHandles");
    return true;
}
 
void NetChart::impl_createSeriesShapes()
{
    //the polygon shapes for each series need to be created before
 
    //iterate through all series again to create the series shapes
    for( auto const& rZSlot : m_aZSlots )
    {
        for( auto const& rXSlot : rZSlot )
        {
            std::map< sal_Int32, std::vector<std::vector<css::drawing::Position3D>>* > aPreviousSeriesPolyMap;//a PreviousSeriesPoly for each different nAttachedAxisIndex
            std::vector<std::vector<css::drawing::Position3D>>* pSeriesPoly = nullptr;
 
            //iterate through all series
            for( std::unique_ptr<VDataSeries> const & pSeries : rXSlot.m_aSeriesVector )
            {
                sal_Int32 nAttachedAxisIndex = pSeries->getAttachedAxisIndex();
                m_pPosHelper = &getPlottingPositionHelper(nAttachedAxisIndex);
 
                pSeriesPoly = &pSeries->m_aPolyPolygonShape3D;
                if( m_bArea )
                {
                    if (!impl_createArea(pSeries.get(), pSeriesPoly,
                                         aPreviousSeriesPolyMap[nAttachedAxisIndex], m_pPosHelper))
                        continue;
                }
                if( m_bLine )
                {
                    if (!impl_createLine(pSeries.get(), pSeriesPoly, m_pPosHelper))
                        continue;
                }
                aPreviousSeriesPolyMap[nAttachedAxisIndex] = pSeriesPoly;
            }//next series in x slot (next y slot)
        }//next x slot
    }//next z slot
}
 
namespace
{
 
void lcl_reorderSeries( std::vector< std::vector< VDataSeriesGroup > >&  rZSlots )
{
    std::vector< std::vector< VDataSeriesGroup > >  aRet;
    aRet.reserve( rZSlots.size() );
 
    std::vector< std::vector< VDataSeriesGroup > >::reverse_iterator aZIt( rZSlots.rbegin() );
    std::vector< std::vector< VDataSeriesGroup > >::reverse_iterator aZEnd( rZSlots.rend() );
    for( ; aZIt != aZEnd; ++aZIt )
    {
        std::vector< VDataSeriesGroup > aXSlot;
 
        std::vector< VDataSeriesGroup >::reverse_iterator aXIt( aZIt->rbegin() );
        std::vector< VDataSeriesGroup >::reverse_iterator aXEnd( aZIt->rend() );
        for( ; aXIt != aXEnd; ++aXIt )
            aXSlot.push_back(std::move(*aXIt));
 
        aRet.push_back(std::move(aXSlot));
    }
 
    rZSlots = std::move(aRet);
}
 
//better performance for big data
struct FormerPoint
{
    FormerPoint( double fX, double fY, double fZ )
        : m_fX(fX), m_fY(fY), m_fZ(fZ)
        {}
    FormerPoint()
        : m_fX(std::numeric_limits<double>::quiet_NaN())
        , m_fY(std::numeric_limits<double>::quiet_NaN())
        , m_fZ(std::numeric_limits<double>::quiet_NaN())
 
    {
    }
 
    double m_fX;
    double m_fY;
    double m_fZ;
};
 
}//anonymous namespace
 
void NetChart::createShapes()
{
    if( m_aZSlots.empty() ) //no series
        return;
 
    //tdf#127813 Don't reverse the series in OOXML-heavy environments
    if (officecfg::Office::Compatibility::View::ReverseSeriesOrderAreaAndNetChart::get() && m_bArea)
        lcl_reorderSeries( m_aZSlots );
 
    OSL_ENSURE(m_xLogicTarget.is()&&m_xFinalTarget.is(),"NetChart is not proper initialized");
    if(!(m_xLogicTarget.is()&&m_xFinalTarget.is()))
        return;
 
    //the text labels should be always on top of the other series shapes
    //for area chart the error bars should be always on top of the other series shapes
 
    //therefore create an own group for the texts and the error bars to move them to front
    //(because the text group is created after the series group the texts are displayed on top)
    m_xSeriesTarget   = createGroupShape( m_xLogicTarget );
    m_xTextTarget     = ShapeFactory::createGroup2D( m_xFinalTarget );
 
    //check necessary here that different Y axis can not be stacked in the same group? ... hm?
 
    //update/create information for current group
    double fLogicZ        = 1.0;//as defined
 
    sal_Int32 const nStartIndex = 0; // inclusive       ;..todo get somehow from x scale
    sal_Int32 nEndIndex = VSeriesPlotter::getPointCount();
    if(nEndIndex<=0)
        nEndIndex=1;
 
    //better performance for big data
    std::map< VDataSeries*, FormerPoint > aSeriesFormerPointMap;
    m_bPointsWereSkipped = false;
 
    bool bDateCategory = (m_pExplicitCategoriesProvider && m_pExplicitCategoriesProvider->isDateAxis());
 
    //iterate through all x values per indices
    for( sal_Int32 nIndex = nStartIndex; nIndex < nEndIndex; nIndex++ )
    {
        std::map< sal_Int32, double > aLogicYSumMap;//one for each different nAttachedAxisIndex
        for( auto const& rZSlot : m_aZSlots )
        {
            //iterate through all x slots in this category to get 100percent sum
            for( auto const& rXSlot : rZSlot )
            {
                for( std::unique_ptr<VDataSeries> const & pSeries : rXSlot.m_aSeriesVector )
                {
                    if(!pSeries)
                        continue;
 
                    if (bDateCategory)
                        pSeries->doSortByXValues();
 
                    sal_Int32 nAttachedAxisIndex = pSeries->getAttachedAxisIndex();
                    aLogicYSumMap.insert({nAttachedAxisIndex, 0.0});
 
                    m_pPosHelper = &getPlottingPositionHelper(nAttachedAxisIndex);
 
                    double fAdd = pSeries->getYValue( nIndex );
                    if( !std::isnan(fAdd) && !std::isinf(fAdd) )
                        aLogicYSumMap[nAttachedAxisIndex] += fabs( fAdd );
                }
            }
        }
 
        for( auto const& rZSlot : m_aZSlots )
        {
            //for the area chart there should be at most one x slot (no side by side stacking available)
            //attention different: xSlots are always interpreted as independent areas one behind the other: @todo this doesn't work why not???
            for( auto const& rXSlot : rZSlot )
            {
                std::map< sal_Int32, double > aLogicYForNextSeriesMap;//one for each different nAttachedAxisIndex
                //iterate through all series
                for( std::unique_ptr<VDataSeries> const & pSeries : rXSlot.m_aSeriesVector )
                {
                    if(!pSeries)
                        continue;
 
                    /*  #i70133# ignore points outside of series length in standard area
                        charts. Stacked area charts will use missing points as zeros. In
                        standard charts, pSeriesList contains only one series. */
                    if( m_bArea && (rXSlot.m_aSeriesVector.size() == 1) && (nIndex >= pSeries->getTotalPointCount()) )
                        continue;
 
                    rtl::Reference<SvxShapeGroupAnyD> xSeriesGroupShape_Shapes = getSeriesGroupShapeFrontChild(pSeries.get(), m_xSeriesTarget);
 
                    sal_Int32 nAttachedAxisIndex = pSeries->getAttachedAxisIndex();
                    m_pPosHelper = &getPlottingPositionHelper(nAttachedAxisIndex);
 
                    pSeries->m_fLogicZPos = fLogicZ;
 
                    //collect data point information (logic coordinates, style ):
                    double fLogicX = pSeries->getXValue(nIndex);
                    if (bDateCategory)
                        fLogicX = DateHelper::RasterizeDateValue( fLogicX, m_aNullDate, m_nTimeResolution );
                    double fLogicY = pSeries->getYValue(nIndex);
 
                    if( m_bArea && ( std::isnan(fLogicY) || std::isinf(fLogicY) ) )
                    {
                        if( pSeries->getMissingValueTreatment() == css::chart::MissingValueTreatment::LEAVE_GAP )
                        {
                            if( rXSlot.m_aSeriesVector.size() == 1 || pSeries == rXSlot.m_aSeriesVector.front() )
                            {
                                fLogicY = m_pPosHelper->getLogicMinY();
                                if (!m_pPosHelper->isMathematicalOrientationY())
                                    fLogicY = m_pPosHelper->getLogicMaxY();
                            }
                            else
                                fLogicY = 0.0;
                        }
                    }
 
                    if (m_pPosHelper->isPercentY() && aLogicYSumMap[nAttachedAxisIndex] != 0.0)
                    {
                        fLogicY = fabs( fLogicY )/aLogicYSumMap[nAttachedAxisIndex];
                    }
 
                    if(    std::isnan(fLogicX) || std::isinf(fLogicX)
                        || std::isnan(fLogicY) || std::isinf(fLogicY)
                        || std::isnan(fLogicZ) || std::isinf(fLogicZ) )
                    {
                        if( pSeries->getMissingValueTreatment() == css::chart::MissingValueTreatment::LEAVE_GAP )
                        {
                            std::vector<std::vector<css::drawing::Position3D>>& rPolygon = pSeries->m_aPolyPolygonShape3D;
                            sal_Int32& rIndex = pSeries->m_nPolygonIndex;
                            if( 0<= rIndex && o3tl::make_unsigned(rIndex) < rPolygon.size() )
                            {
                                if( !rPolygon[ rIndex ].empty() )
                                    rIndex++; //start a new polygon for the next point if the current poly is not empty
                            }
                        }
                        continue;
                    }
 
                    aLogicYForNextSeriesMap.try_emplace(nAttachedAxisIndex, 0.0);
 
                    double fLogicValueForLabeDisplay = fLogicY;
 
                    fLogicY += aLogicYForNextSeriesMap[nAttachedAxisIndex];
                    aLogicYForNextSeriesMap[nAttachedAxisIndex] = fLogicY;
 
                    bool bIsVisible = m_pPosHelper->isLogicVisible(fLogicX, fLogicY, fLogicZ);
 
                    //remind minimal and maximal x values for area 'grounding' points
                    //only for filled area
                    {
                        double& rfMinX = pSeries->m_fLogicMinX;
                        if(!nIndex||fLogicX<rfMinX)
                            rfMinX=fLogicX;
                        double& rfMaxX = pSeries->m_fLogicMaxX;
                        if(!nIndex||fLogicX>rfMaxX)
                            rfMaxX=fLogicX;
                    }
 
                    drawing::Position3D aUnscaledLogicPosition( fLogicX, fLogicY, fLogicZ );
                    drawing::Position3D aScaledLogicPosition(aUnscaledLogicPosition);
                    m_pPosHelper->doLogicScaling(aScaledLogicPosition);
 
                    //transformation 3) -> 4)
                    drawing::Position3D aScenePosition(
                        m_pPosHelper->transformLogicToScene(fLogicX, fLogicY, fLogicZ, false));
 
                    //better performance for big data
                    FormerPoint aFormerPoint( aSeriesFormerPointMap[pSeries.get()] );
                    m_pPosHelper->setCoordinateSystemResolution(m_aCoordinateSystemResolution);
                    if( !pSeries->isAttributedDataPoint(nIndex)
                            && m_pPosHelper->isSameForGivenResolution(
                               aFormerPoint.m_fX, aFormerPoint.m_fY, aFormerPoint.m_fZ
                                                            , aScaledLogicPosition.PositionX, aScaledLogicPosition.PositionY, aScaledLogicPosition.PositionZ ) )
                    {
                        m_bPointsWereSkipped = true;
                        continue;
                    }
                    aSeriesFormerPointMap[pSeries.get()] = FormerPoint(aScaledLogicPosition.PositionX, aScaledLogicPosition.PositionY, aScaledLogicPosition.PositionZ);
 
                    //store point information for series polygon
                    //for area and/or line (symbols only do not need this)
                    if( isValidPosition(aScaledLogicPosition) )
                    {
                        AddPointToPoly( pSeries->m_aPolyPolygonShape3D, aScaledLogicPosition, pSeries->m_nPolygonIndex );
 
                        //prepare clipping for filled net charts
                        if( !bIsVisible && m_bArea )
                        {
                            drawing::Position3D aClippedPos(aScaledLogicPosition);
                            m_pPosHelper->clipScaledLogicValues(nullptr, &aClippedPos.PositionY,
                                                                nullptr);
                            if (m_pPosHelper->isLogicVisible(aClippedPos.PositionX,
                                                             aClippedPos.PositionY,
                                                             aClippedPos.PositionZ))
                            {
                                AddPointToPoly( pSeries->m_aPolyPolygonShape3D, aClippedPos, pSeries->m_nPolygonIndex );
                                AddPointToPoly( pSeries->m_aPolyPolygonShape3D, aScaledLogicPosition, pSeries->m_nPolygonIndex );
                            }
                        }
                    }
 
                    //create a single datapoint if point is visible
                    //apply clipping:
                    if( !bIsVisible )
                        continue;
 
                    Symbol* pSymbolProperties = pSeries->getSymbolProperties( nIndex );
                    bool bCreateSymbol = pSymbolProperties && (pSymbolProperties->Style != SymbolStyle_NONE);
 
                    if( !bCreateSymbol && !pSeries->getDataPointLabelIfLabel(nIndex) )
                        continue;
 
                    //create a group shape for this point and add to the series shape:
                    OUString aPointCID = ObjectIdentifier::createPointCID(
                        pSeries->getPointCID_Stub(), nIndex );
                    rtl::Reference<SvxShapeGroupAnyD> xPointGroupShape_Shapes(
                        createGroupShape(xSeriesGroupShape_Shapes,aPointCID) );
 
                    {
                        //create data point
                        drawing::Direction3D aSymbolSize(0,0,0);
                        if (bCreateSymbol) // implies pSymbolProperties
                        {
                            if (pSymbolProperties->Style != SymbolStyle_NONE)
                            {
                                aSymbolSize.DirectionX = pSymbolProperties->Size.Width;
                                aSymbolSize.DirectionY = pSymbolProperties->Size.Height;
                            }
 
                            if (pSymbolProperties->Style == SymbolStyle_STANDARD)
                            {
                                sal_Int32 nSymbol = pSymbolProperties->StandardSymbol;
                                ShapeFactory::createSymbol2D(
                                    xPointGroupShape_Shapes, aScenePosition, aSymbolSize, nSymbol,
                                    pSymbolProperties->BorderColor, pSymbolProperties->FillColor);
                            }
                            else if (pSymbolProperties->Style == SymbolStyle_GRAPHIC)
                            {
                                ShapeFactory::createGraphic2D(xPointGroupShape_Shapes,
                                                                 aScenePosition, aSymbolSize,
                                                                 pSymbolProperties->Graphic);
                            }
                            //@todo other symbol styles
                        }
 
                        //create data point label
                        if( pSeries->getDataPointLabelIfLabel(nIndex) )
                        {
                            LabelAlignment eAlignment = LABEL_ALIGN_TOP;
                            drawing::Position3D aScenePosition3D( aScenePosition.PositionX
                                        , aScenePosition.PositionY
                                        , aScenePosition.PositionZ+getTransformedDepth() );
 
                            sal_Int32 nLabelPlacement = pSeries->getLabelPlacement(
                                nIndex, m_xChartTypeModel, m_pPosHelper->isSwapXAndY());
 
                            switch(nLabelPlacement)
                            {
                            case css::chart::DataLabelPlacement::TOP:
                                aScenePosition3D.PositionY -= (aSymbolSize.DirectionY/2+1);
                                eAlignment = LABEL_ALIGN_TOP;
                                break;
                            case css::chart::DataLabelPlacement::BOTTOM:
                                aScenePosition3D.PositionY += (aSymbolSize.DirectionY/2+1);
                                eAlignment = LABEL_ALIGN_BOTTOM;
                                break;
                            case css::chart::DataLabelPlacement::LEFT:
                                aScenePosition3D.PositionX -= (aSymbolSize.DirectionX/2+1);
                                eAlignment = LABEL_ALIGN_LEFT;
                                break;
                            case css::chart::DataLabelPlacement::RIGHT:
                                aScenePosition3D.PositionX += (aSymbolSize.DirectionX/2+1);
                                eAlignment = LABEL_ALIGN_RIGHT;
                                break;
                            case css::chart::DataLabelPlacement::CENTER:
                                eAlignment = LABEL_ALIGN_CENTER;
                                //todo implement this different for area charts
                                break;
                            default:
                                OSL_FAIL("this label alignment is not implemented yet");
                                aScenePosition3D.PositionY -= (aSymbolSize.DirectionY/2+1);
                                eAlignment = LABEL_ALIGN_TOP;
                                break;
                            }
 
                            awt::Point aScreenPosition2D;//get the screen position for the labels
                            sal_Int32 nOffset = 100; //todo maybe calculate this font height dependent
                            if( nLabelPlacement == css::chart::DataLabelPlacement::OUTSIDE )
                            {
                                PolarPlottingPositionHelper* pPolarPosHelper
                                    = dynamic_cast<PolarPlottingPositionHelper*>(m_pPosHelper);
                                if( pPolarPosHelper )
                                {
                                    PolarLabelPositionHelper aPolarLabelPositionHelper(pPolarPosHelper,m_nDimension,m_xLogicTarget);
                                    aScreenPosition2D = aPolarLabelPositionHelper.getLabelScreenPositionAndAlignmentForLogicValues(
                                        eAlignment, fLogicX, fLogicY, fLogicZ, nOffset );
                                }
                            }
                            else
                            {
                                if(eAlignment==LABEL_ALIGN_CENTER )
                                    nOffset = 0;
                                aScreenPosition2D = LabelPositionHelper(m_nDimension,m_xLogicTarget)
                                    .transformSceneToScreenPosition( aScenePosition3D );
                            }
 
                            createDataLabel( m_xTextTarget, *pSeries, nIndex
                                            , fLogicValueForLabeDisplay
                                            , aLogicYSumMap[nAttachedAxisIndex], aScreenPosition2D, eAlignment, nOffset );
                        }
                    }
 
                    //remove PointGroupShape if empty
                    if(!xPointGroupShape_Shapes->getCount())
                        xSeriesGroupShape_Shapes->remove(xPointGroupShape_Shapes);
 
                }//next series in x slot (next y slot)
            }//next x slot
        }//next z slot
    }//next category
 
    impl_createSeriesShapes();
 
}
 
} //namespace chart
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */