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diff --git a/basegfx/source/polygon/b3dpolypolygontools.cxx b/basegfx/source/polygon/b3dpolypolygontools.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 <basegfx/polygon/b3dpolypolygontools.hxx>
+#include <basegfx/range/b3drange.hxx>
+#include <basegfx/polygon/b3dpolypolygon.hxx>
+#include <basegfx/polygon/b3dpolygon.hxx>
+#include <basegfx/polygon/b3dpolygontools.hxx>
+#include <basegfx/matrix/b3dhommatrix.hxx>
+#include <basegfx/numeric/ftools.hxx>
+#include <com/sun/star/drawing/DoubleSequence.hpp>
+#include <com/sun/star/drawing/PolyPolygonShape3D.hpp>
+
+// predefines
+#define nMinSegments sal_uInt32(1)
+#define nMaxSegments sal_uInt32(512)
+
+namespace basegfx::utils
+{
+ // B3DPolyPolygon tools
+ B3DRange getRange(const B3DPolyPolygon& rCandidate)
+ {
+ B3DRange aRetval;
+ const sal_uInt32 nPolygonCount(rCandidate.count());
+
+ for(sal_uInt32 a(0); a < nPolygonCount; a++)
+ {
+ const B3DPolygon& aCandidate = rCandidate.getB3DPolygon(a);
+ aRetval.expand(getRange(aCandidate));
+ }
+
+ return aRetval;
+ }
+
+ B3DPolyPolygon const & createUnitCubePolyPolygon()
+ {
+ static auto const singleton = [] {
+ B3DPolyPolygon aRetval;
+ B3DPolygon aTemp;
+ aTemp.append(B3DPoint(0.0, 0.0, 1.0));
+ aTemp.append(B3DPoint(0.0, 1.0, 1.0));
+ aTemp.append(B3DPoint(1.0, 1.0, 1.0));
+ aTemp.append(B3DPoint(1.0, 0.0, 1.0));
+ aTemp.setClosed(true);
+ aRetval.append(aTemp);
+
+ aTemp.clear();
+ aTemp.append(B3DPoint(0.0, 0.0, 0.0));
+ aTemp.append(B3DPoint(0.0, 1.0, 0.0));
+ aTemp.append(B3DPoint(1.0, 1.0, 0.0));
+ aTemp.append(B3DPoint(1.0, 0.0, 0.0));
+ aTemp.setClosed(true);
+ aRetval.append(aTemp);
+
+ aTemp.clear();
+ aTemp.append(B3DPoint(0.0, 0.0, 0.0));
+ aTemp.append(B3DPoint(0.0, 0.0, 1.0));
+ aRetval.append(aTemp);
+
+ aTemp.clear();
+ aTemp.append(B3DPoint(0.0, 1.0, 0.0));
+ aTemp.append(B3DPoint(0.0, 1.0, 1.0));
+ aRetval.append(aTemp);
+
+ aTemp.clear();
+ aTemp.append(B3DPoint(1.0, 1.0, 0.0));
+ aTemp.append(B3DPoint(1.0, 1.0, 1.0));
+ aRetval.append(aTemp);
+
+ aTemp.clear();
+ aTemp.append(B3DPoint(1.0, 0.0, 0.0));
+ aTemp.append(B3DPoint(1.0, 0.0, 1.0));
+ aRetval.append(aTemp);
+ return aRetval;
+ }();
+ return singleton;
+ }
+
+ B3DPolyPolygon const & createUnitCubeFillPolyPolygon()
+ {
+ static auto const singleton = [] {
+ B3DPolyPolygon aRetval;
+ B3DPolygon aTemp;
+
+ // all points
+ const B3DPoint A(0.0, 0.0, 0.0);
+ const B3DPoint B(0.0, 1.0, 0.0);
+ const B3DPoint C(1.0, 1.0, 0.0);
+ const B3DPoint D(1.0, 0.0, 0.0);
+ const B3DPoint E(0.0, 0.0, 1.0);
+ const B3DPoint F(0.0, 1.0, 1.0);
+ const B3DPoint G(1.0, 1.0, 1.0);
+ const B3DPoint H(1.0, 0.0, 1.0);
+
+ // create bottom
+ aTemp.append(D);
+ aTemp.append(A);
+ aTemp.append(E);
+ aTemp.append(H);
+ aTemp.setClosed(true);
+ aRetval.append(aTemp);
+
+ // create front
+ aTemp.clear();
+ aTemp.append(B);
+ aTemp.append(A);
+ aTemp.append(D);
+ aTemp.append(C);
+ aTemp.setClosed(true);
+ aRetval.append(aTemp);
+
+ // create left
+ aTemp.clear();
+ aTemp.append(E);
+ aTemp.append(A);
+ aTemp.append(B);
+ aTemp.append(F);
+ aTemp.setClosed(true);
+ aRetval.append(aTemp);
+
+ // create top
+ aTemp.clear();
+ aTemp.append(C);
+ aTemp.append(G);
+ aTemp.append(F);
+ aTemp.append(B);
+ aTemp.setClosed(true);
+ aRetval.append(aTemp);
+
+ // create right
+ aTemp.clear();
+ aTemp.append(H);
+ aTemp.append(G);
+ aTemp.append(C);
+ aTemp.append(D);
+ aTemp.setClosed(true);
+ aRetval.append(aTemp);
+
+ // create back
+ aTemp.clear();
+ aTemp.append(F);
+ aTemp.append(G);
+ aTemp.append(H);
+ aTemp.append(E);
+ aTemp.setClosed(true);
+ aRetval.append(aTemp);
+ return aRetval;
+ }();
+ return singleton;
+ }
+
+ B3DPolyPolygon createCubePolyPolygonFromB3DRange( const B3DRange& rRange)
+ {
+ B3DPolyPolygon aRetval;
+
+ if(!rRange.isEmpty())
+ {
+ aRetval = createUnitCubePolyPolygon();
+ B3DHomMatrix aTrans;
+ aTrans.scale(rRange.getWidth(), rRange.getHeight(), rRange.getDepth());
+ aTrans.translate(rRange.getMinX(), rRange.getMinY(), rRange.getMinZ());
+ aRetval.transform(aTrans);
+ aRetval.removeDoublePoints();
+ }
+
+ return aRetval;
+ }
+
+ B3DPolyPolygon createCubeFillPolyPolygonFromB3DRange( const B3DRange& rRange)
+ {
+ B3DPolyPolygon aRetval;
+
+ if(!rRange.isEmpty())
+ {
+ aRetval = createUnitCubeFillPolyPolygon();
+ B3DHomMatrix aTrans;
+ aTrans.scale(rRange.getWidth(), rRange.getHeight(), rRange.getDepth());
+ aTrans.translate(rRange.getMinX(), rRange.getMinY(), rRange.getMinZ());
+ aRetval.transform(aTrans);
+ aRetval.removeDoublePoints();
+ }
+
+ return aRetval;
+ }
+
+ // helper for getting the 3D Point from given cartesian coordinates. fHor is defined from
+ // [M_PI_2 .. -M_PI_2], fVer from [0.0 .. 2PI]
+ static B3DPoint getPointFromCartesian(double fHor, double fVer)
+ {
+ const double fCosVer(cos(fVer));
+ return B3DPoint(fCosVer * cos(fHor), sin(fVer), fCosVer * -sin(fHor));
+ }
+
+ B3DPolyPolygon createUnitSpherePolyPolygon(
+ sal_uInt32 nHorSeg, sal_uInt32 nVerSeg,
+ double fVerStart, double fVerStop,
+ double fHorStart, double fHorStop)
+ {
+ B3DPolyPolygon aRetval;
+ sal_uInt32 a, b;
+
+ if(!nHorSeg)
+ {
+ nHorSeg = fround(fabs(fHorStop - fHorStart) / (M_PI / 12.0));
+ }
+
+ // min/max limitations
+ nHorSeg = std::clamp(nHorSeg, nMinSegments, nMaxSegments);
+
+ if(!nVerSeg)
+ {
+ nVerSeg = fround(fabs(fVerStop - fVerStart) / (M_PI / 12.0));
+ }
+
+ // min/max limitations
+ nVerSeg = std::clamp(nVerSeg, nMinSegments, nMaxSegments);
+
+ // create constants
+ const double fVerDiffPerStep((fVerStop - fVerStart) / static_cast<double>(nVerSeg));
+ const double fHorDiffPerStep((fHorStop - fHorStart) / static_cast<double>(nHorSeg));
+ bool bHorClosed(fTools::equal(fHorStop - fHorStart, 2 * M_PI));
+ bool bVerFromTop(fTools::equal(fVerStart, M_PI_2));
+ bool bVerToBottom(fTools::equal(fVerStop, -M_PI_2));
+
+ // create horizontal rings
+ const sal_uInt32 nLoopVerInit(bVerFromTop ? 1 : 0);
+ const sal_uInt32 nLoopVerLimit(bVerToBottom ? nVerSeg : nVerSeg + 1);
+ const sal_uInt32 nLoopHorLimit(bHorClosed ? nHorSeg : nHorSeg + 1);
+
+ for(a = nLoopVerInit; a < nLoopVerLimit; a++)
+ {
+ const double fVer(fVerStart + (static_cast<double>(a) * fVerDiffPerStep));
+ B3DPolygon aNew;
+
+ for(b = 0; b < nLoopHorLimit; b++)
+ {
+ const double fHor(fHorStart + (static_cast<double>(b) * fHorDiffPerStep));
+ aNew.append(getPointFromCartesian(fHor, fVer));
+ }
+
+ aNew.setClosed(bHorClosed);
+ aRetval.append(aNew);
+ }
+
+ // create vertical half-rings
+ for(a = 0; a < nLoopHorLimit; a++)
+ {
+ const double fHor(fHorStart + (static_cast<double>(a) * fHorDiffPerStep));
+ B3DPolygon aNew;
+
+ if(bVerFromTop)
+ {
+ aNew.append(B3DPoint(0.0, 1.0, 0.0));
+ }
+
+ for(b = nLoopVerInit; b < nLoopVerLimit; b++)
+ {
+ const double fVer(fVerStart + (static_cast<double>(b) * fVerDiffPerStep));
+ aNew.append(getPointFromCartesian(fHor, fVer));
+ }
+
+ if(bVerToBottom)
+ {
+ aNew.append(B3DPoint(0.0, -1.0, 0.0));
+ }
+
+ aRetval.append(aNew);
+ }
+
+ return aRetval;
+ }
+
+ B3DPolyPolygon createSpherePolyPolygonFromB3DRange( const B3DRange& rRange,
+ sal_uInt32 nHorSeg, sal_uInt32 nVerSeg,
+ double fVerStart, double fVerStop,
+ double fHorStart, double fHorStop)
+ {
+ B3DPolyPolygon aRetval(createUnitSpherePolyPolygon(nHorSeg, nVerSeg, fVerStart, fVerStop, fHorStart, fHorStop));
+
+ if(aRetval.count())
+ {
+ // move and scale whole construct which is now in [-1.0 .. 1.0] in all directions
+ B3DHomMatrix aTrans;
+ aTrans.translate(1.0, 1.0, 1.0);
+ aTrans.scale(rRange.getWidth() / 2.0, rRange.getHeight() / 2.0, rRange.getDepth() / 2.0);
+ aTrans.translate(rRange.getMinX(), rRange.getMinY(), rRange.getMinZ());
+ aRetval.transform(aTrans);
+ }
+
+ return aRetval;
+ }
+
+ B3DPolyPolygon createUnitSphereFillPolyPolygon(
+ sal_uInt32 nHorSeg, sal_uInt32 nVerSeg,
+ bool bNormals,
+ double fVerStart, double fVerStop,
+ double fHorStart, double fHorStop)
+ {
+ B3DPolyPolygon aRetval;
+
+ if(!nHorSeg)
+ {
+ nHorSeg = fround(fabs(fHorStop - fHorStart) / (M_PI / 12.0));
+ }
+
+ // min/max limitations
+ nHorSeg = std::clamp(nHorSeg, nMinSegments, nMaxSegments);
+
+ if(!nVerSeg)
+ {
+ nVerSeg = fround(fabs(fVerStop - fVerStart) / (M_PI / 12.0));
+ }
+
+ // min/max limitations
+ nVerSeg = std::clamp(nVerSeg, nMinSegments, nMaxSegments);
+
+ // vertical loop
+ for(sal_uInt32 a(0); a < nVerSeg; a++)
+ {
+ const double fVer1(fVerStart + (((fVerStop - fVerStart) * a) / nVerSeg));
+ const double fVer2(fVerStart + (((fVerStop - fVerStart) * (a + 1)) / nVerSeg));
+
+ // horizontal loop
+ for(sal_uInt32 b(0); b < nHorSeg; b++)
+ {
+ const double fHor1(fHorStart + (((fHorStop - fHorStart) * b) / nHorSeg));
+ const double fHor2(fHorStart + (((fHorStop - fHorStart) * (b + 1)) / nHorSeg));
+ B3DPolygon aNew;
+
+ aNew.append(getPointFromCartesian(fHor1, fVer1));
+ aNew.append(getPointFromCartesian(fHor2, fVer1));
+ aNew.append(getPointFromCartesian(fHor2, fVer2));
+ aNew.append(getPointFromCartesian(fHor1, fVer2));
+
+ if(bNormals)
+ {
+ for(sal_uInt32 c(0); c < aNew.count(); c++)
+ {
+ aNew.setNormal(c, ::basegfx::B3DVector(aNew.getB3DPoint(c)));
+ }
+ }
+
+ aNew.setClosed(true);
+ aRetval.append(aNew);
+ }
+ }
+
+ return aRetval;
+ }
+
+ B3DPolyPolygon createSphereFillPolyPolygonFromB3DRange( const B3DRange& rRange,
+ sal_uInt32 nHorSeg, sal_uInt32 nVerSeg,
+ bool bNormals,
+ double fVerStart, double fVerStop,
+ double fHorStart, double fHorStop)
+ {
+ B3DPolyPolygon aRetval(createUnitSphereFillPolyPolygon(nHorSeg, nVerSeg, bNormals, fVerStart, fVerStop, fHorStart, fHorStop));
+
+ if(aRetval.count())
+ {
+ // move and scale whole construct which is now in [-1.0 .. 1.0] in all directions
+ B3DHomMatrix aTrans;
+ aTrans.translate(1.0, 1.0, 1.0);
+ aTrans.scale(rRange.getWidth() / 2.0, rRange.getHeight() / 2.0, rRange.getDepth() / 2.0);
+ aTrans.translate(rRange.getMinX(), rRange.getMinY(), rRange.getMinZ());
+ aRetval.transform(aTrans);
+ }
+
+ return aRetval;
+ }
+
+ B3DPolyPolygon applyDefaultNormalsSphere( const B3DPolyPolygon& rCandidate, const B3DPoint& rCenter)
+ {
+ B3DPolyPolygon aRetval;
+
+ for(sal_uInt32 a(0); a < rCandidate.count(); a++)
+ {
+ aRetval.append(applyDefaultNormalsSphere(rCandidate.getB3DPolygon(a), rCenter));
+ }
+
+ return aRetval;
+ }
+
+ B3DPolyPolygon invertNormals( const B3DPolyPolygon& rCandidate)
+ {
+ B3DPolyPolygon aRetval;
+
+ for(sal_uInt32 a(0); a < rCandidate.count(); a++)
+ {
+ aRetval.append(invertNormals(rCandidate.getB3DPolygon(a)));
+ }
+
+ return aRetval;
+ }
+
+ B3DPolyPolygon applyDefaultTextureCoordinatesParallel( const B3DPolyPolygon& rCandidate, const B3DRange& rRange, bool bChangeX, bool bChangeY)
+ {
+ B3DPolyPolygon aRetval;
+
+ for(sal_uInt32 a(0); a < rCandidate.count(); a++)
+ {
+ aRetval.append(applyDefaultTextureCoordinatesParallel(rCandidate.getB3DPolygon(a), rRange, bChangeX, bChangeY));
+ }
+
+ return aRetval;
+ }
+
+ B3DPolyPolygon applyDefaultTextureCoordinatesSphere( const B3DPolyPolygon& rCandidate, const B3DPoint& rCenter, bool bChangeX, bool bChangeY)
+ {
+ B3DPolyPolygon aRetval;
+
+ for(sal_uInt32 a(0); a < rCandidate.count(); a++)
+ {
+ aRetval.append(applyDefaultTextureCoordinatesSphere(rCandidate.getB3DPolygon(a), rCenter, bChangeX, bChangeY));
+ }
+
+ return aRetval;
+ }
+
+ bool isInside(const B3DPolyPolygon& rCandidate, const B3DPoint& rPoint)
+ {
+ const sal_uInt32 nPolygonCount(rCandidate.count());
+
+ if(nPolygonCount == 1)
+ {
+ return isInside(rCandidate.getB3DPolygon(0), rPoint, false/*bWithBorder*/);
+ }
+ else
+ {
+ sal_Int32 nInsideCount(0);
+
+ for(sal_uInt32 a(0); a < nPolygonCount; a++)
+ {
+ const B3DPolygon& aPolygon(rCandidate.getB3DPolygon(a));
+ const bool bInside(isInside(aPolygon, rPoint, false/*bWithBorder*/));
+
+ if(bInside)
+ {
+ nInsideCount++;
+ }
+ }
+
+ return (nInsideCount % 2);
+ }
+ }
+
+/// converters for css::drawing::PolyPolygonShape3D
+ B3DPolyPolygon UnoPolyPolygonShape3DToB3DPolyPolygon(
+ const css::drawing::PolyPolygonShape3D& rPolyPolygonShape3DSource)
+ {
+ B3DPolyPolygon aRetval;
+ const sal_Int32 nOuterSequenceCount(rPolyPolygonShape3DSource.SequenceX.getLength());
+
+ if(nOuterSequenceCount)
+ {
+ assert(nOuterSequenceCount == rPolyPolygonShape3DSource.SequenceY.getLength()
+ && nOuterSequenceCount
+ == rPolyPolygonShape3DSource.SequenceZ.getLength()&&
+ "UnoPolyPolygonShape3DToB3DPolygon: Not all double sequences have the same "
+ "length (!)" );
+
+ const css::drawing::DoubleSequence* pInnerSequenceX = rPolyPolygonShape3DSource.SequenceX.getConstArray();
+ const css::drawing::DoubleSequence* pInnerSequenceY = rPolyPolygonShape3DSource.SequenceY.getConstArray();
+ const css::drawing::DoubleSequence* pInnerSequenceZ = rPolyPolygonShape3DSource.SequenceZ.getConstArray();
+
+ for(sal_Int32 a(0); a < nOuterSequenceCount; a++)
+ {
+ basegfx::B3DPolygon aNewPolygon;
+ const sal_Int32 nInnerSequenceCount(pInnerSequenceX->getLength());
+ assert(nInnerSequenceCount == pInnerSequenceY->getLength()
+ && nInnerSequenceCount == pInnerSequenceZ->getLength()
+ && "UnoPolyPolygonShape3DToB3DPolygon: Not all double sequences have "
+ "the same length (!)");
+
+ const double* pArrayX = pInnerSequenceX->getConstArray();
+ const double* pArrayY = pInnerSequenceY->getConstArray();
+ const double* pArrayZ = pInnerSequenceZ->getConstArray();
+
+ for(sal_Int32 b(0); b < nInnerSequenceCount; b++)
+ {
+ aNewPolygon.append(basegfx::B3DPoint(*pArrayX++,*pArrayY++,*pArrayZ++));
+ }
+
+ pInnerSequenceX++;
+ pInnerSequenceY++;
+ pInnerSequenceZ++;
+
+ // #i101520# correction is needed for imported polygons of old format,
+ // see callers
+ basegfx::utils::checkClosed(aNewPolygon);
+
+ aRetval.append(aNewPolygon);
+ }
+ }
+
+ return aRetval;
+ }
+
+ void B3DPolyPolygonToUnoPolyPolygonShape3D(
+ const B3DPolyPolygon& rPolyPolygonSource,
+ css::drawing::PolyPolygonShape3D& rPolyPolygonShape3DRetval)
+ {
+ const sal_uInt32 nPolygonCount(rPolyPolygonSource.count());
+
+ if(nPolygonCount)
+ {
+ rPolyPolygonShape3DRetval.SequenceX.realloc(nPolygonCount);
+ rPolyPolygonShape3DRetval.SequenceY.realloc(nPolygonCount);
+ rPolyPolygonShape3DRetval.SequenceZ.realloc(nPolygonCount);
+
+ css::drawing::DoubleSequence* pOuterSequenceX = rPolyPolygonShape3DRetval.SequenceX.getArray();
+ css::drawing::DoubleSequence* pOuterSequenceY = rPolyPolygonShape3DRetval.SequenceY.getArray();
+ css::drawing::DoubleSequence* pOuterSequenceZ = rPolyPolygonShape3DRetval.SequenceZ.getArray();
+
+ for(sal_uInt32 a(0); a < nPolygonCount; a++)
+ {
+ const basegfx::B3DPolygon& aPoly(rPolyPolygonSource.getB3DPolygon(a));
+ const sal_uInt32 nPointCount(aPoly.count());
+
+ if(nPointCount)
+ {
+ const bool bIsClosed(aPoly.isClosed());
+ const sal_uInt32 nTargetCount(bIsClosed ? nPointCount + 1 : nPointCount);
+ pOuterSequenceX->realloc(nTargetCount);
+ pOuterSequenceY->realloc(nTargetCount);
+ pOuterSequenceZ->realloc(nTargetCount);
+
+ double* pInnerSequenceX = pOuterSequenceX->getArray();
+ double* pInnerSequenceY = pOuterSequenceY->getArray();
+ double* pInnerSequenceZ = pOuterSequenceZ->getArray();
+
+ for(sal_uInt32 b(0); b < nPointCount; b++)
+ {
+ const basegfx::B3DPoint aPoint(aPoly.getB3DPoint(b));
+
+ *pInnerSequenceX++ = aPoint.getX();
+ *pInnerSequenceY++ = aPoint.getY();
+ *pInnerSequenceZ++ = aPoint.getZ();
+ }
+
+ if(bIsClosed)
+ {
+ const basegfx::B3DPoint aPoint(aPoly.getB3DPoint(0));
+
+ *pInnerSequenceX++ = aPoint.getX();
+ *pInnerSequenceY++ = aPoint.getY();
+ *pInnerSequenceZ++ = aPoint.getZ();
+ }
+ }
+ else
+ {
+ pOuterSequenceX->realloc(0);
+ pOuterSequenceY->realloc(0);
+ pOuterSequenceZ->realloc(0);
+ }
+
+ pOuterSequenceX++;
+ pOuterSequenceY++;
+ pOuterSequenceZ++;
+ }
+ }
+ else
+ {
+ rPolyPolygonShape3DRetval.SequenceX.realloc(0);
+ rPolyPolygonShape3DRetval.SequenceY.realloc(0);
+ rPolyPolygonShape3DRetval.SequenceZ.realloc(0);
+ }
+ }
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */