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Diffstat (limited to 'basegfx/source/polygon/b3dpolypolygontools.cxx')
| -rw-r--r-- | basegfx/source/polygon/b3dpolypolygontools.cxx | 588 |
1 files changed, 588 insertions, 0 deletions
diff --git a/basegfx/source/polygon/b3dpolypolygontools.cxx b/basegfx/source/polygon/b3dpolypolygontools.cxx new file mode 100644 index 000000000..62ddd3ae7 --- /dev/null +++ b/basegfx/source/polygon/b3dpolypolygontools.cxx @@ -0,0 +1,588 @@ +/* -*- 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: */ |