viewcontactofe3dlathe.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include <sdr/contact/viewcontactofe3dlathe.hxx>
#include <svx/lathe3d.hxx>
#include <drawinglayer/primitive3d/sdrlatheprimitive3d.hxx>
#include <sdr/primitive2d/sdrattributecreator.hxx>
#include <sdr/primitive3d/sdrattributecreator3d.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
 
 
namespace sdr::contact
{
        ViewContactOfE3dLathe::ViewContactOfE3dLathe(E3dLatheObj& rLathe)
        :   ViewContactOfE3d(rLathe)
        {
        }
 
        ViewContactOfE3dLathe::~ViewContactOfE3dLathe()
        {
        }
 
        drawinglayer::primitive3d::Primitive3DContainer ViewContactOfE3dLathe::createViewIndependentPrimitive3DContainer() const
        {
            drawinglayer::primitive3d::Primitive3DContainer xRetval;
            const SfxItemSet& rItemSet = GetE3dLatheObj().GetMergedItemSet();
            const drawinglayer::attribute::SdrLineFillShadowAttribute3D aAttribute(
                drawinglayer::primitive2d::createNewSdrLineFillShadowAttribute(rItemSet, false));
 
            // get extrude geometry
            basegfx::B2DPolyPolygon aPolyPolygon(GetE3dLatheObj().GetPolyPoly2D());
 
            // get 3D Object Attributes
            drawinglayer::attribute::Sdr3DObjectAttribute aSdr3DObjectAttribute(drawinglayer::primitive2d::createNewSdr3DObjectAttribute(rItemSet));
 
            // calculate texture size. Use the polygon length of the longest polygon for
            // height and the rotated radius for width (using polygon center) to get a good
            // texture mapping
            double fPolygonMaxLength(0.0);
 
            for(auto const& rCandidate : aPolyPolygon)
            {
                const double fPolygonLength(basegfx::utils::getLength(rCandidate));
                fPolygonMaxLength = std::max(fPolygonMaxLength, fPolygonLength);
            }
 
            const basegfx::B2DRange aPolyPolygonRange(basegfx::utils::getRange(aPolyPolygon));
            const basegfx::B2DVector aTextureSize(
                M_PI * fabs(aPolyPolygonRange.getCenter().getX()), // PI * d
                fPolygonMaxLength);
 
            // get more data
            const sal_uInt32 nHorizontalSegments(GetE3dLatheObj().GetHorizontalSegments());
            const sal_uInt32 nVerticalSegments(GetE3dLatheObj().GetVerticalSegments());
            const double fDiagonal(static_cast<double>(GetE3dLatheObj().GetPercentDiagonal()) / 100.0);
            const double fBackScale(static_cast<double>(GetE3dLatheObj().GetBackScale()) / 100.0);
            const double fRotation(basegfx::deg2rad<10>(GetE3dLatheObj().GetEndAngle()));
            const bool bSmoothNormals(GetE3dLatheObj().GetSmoothNormals()); // Plane itself
            const bool bSmoothLids(GetE3dLatheObj().GetSmoothLids()); // Front/back
            const bool bCharacterMode(GetE3dLatheObj().GetCharacterMode());
            const bool bCloseFront(GetE3dLatheObj().GetCloseFront());
            const bool bCloseBack(GetE3dLatheObj().GetCloseBack());
 
            // create primitive and add
            const basegfx::B3DHomMatrix aWorldTransform;
            const drawinglayer::primitive3d::Primitive3DReference xReference(
                new drawinglayer::primitive3d::SdrLathePrimitive3D(
                    aWorldTransform, aTextureSize, aAttribute, aSdr3DObjectAttribute,
                    std::move(aPolyPolygon), nHorizontalSegments, nVerticalSegments,
                    fDiagonal, fBackScale, fRotation,
                    bSmoothNormals, bSmoothLids, bCharacterMode, bCloseFront, bCloseBack));
            xRetval = { xReference };
 
            return xRetval;
        }
 
} // end of namespace
 
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