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| -rw-r--r-- | basegfx/source/matrix/b3dhommatrix.cxx | 546 |
1 files changed, 546 insertions, 0 deletions
diff --git a/basegfx/source/matrix/b3dhommatrix.cxx b/basegfx/source/matrix/b3dhommatrix.cxx new file mode 100644 index 000000000..3605767d6 --- /dev/null +++ b/basegfx/source/matrix/b3dhommatrix.cxx @@ -0,0 +1,546 @@ +/* -*- 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/matrix/b3dhommatrix.hxx> +#include <hommatrixtemplate.hxx> +#include <basegfx/vector/b3dvector.hxx> +#include <memory> + +namespace basegfx +{ + typedef ::basegfx::internal::ImplHomMatrixTemplate< 4 >Impl3DHomMatrix_Base; + class Impl3DHomMatrix : public Impl3DHomMatrix_Base + { + }; + + B3DHomMatrix::B3DHomMatrix() = default; + + B3DHomMatrix::B3DHomMatrix(const B3DHomMatrix&) = default; + + B3DHomMatrix::B3DHomMatrix(B3DHomMatrix&&) = default; + + B3DHomMatrix::~B3DHomMatrix() = default; + + B3DHomMatrix& B3DHomMatrix::operator=(const B3DHomMatrix&) = default; + + B3DHomMatrix& B3DHomMatrix::operator=(B3DHomMatrix&&) = default; + + double B3DHomMatrix::get(sal_uInt16 nRow, sal_uInt16 nColumn) const + { + return mpImpl->get(nRow, nColumn); + } + + void B3DHomMatrix::set(sal_uInt16 nRow, sal_uInt16 nColumn, double fValue) + { + mpImpl->set(nRow, nColumn, fValue); + } + + bool B3DHomMatrix::isLastLineDefault() const + { + return mpImpl->isLastLineDefault(); + } + + bool B3DHomMatrix::isIdentity() const + { + return mpImpl->isIdentity(); + } + + void B3DHomMatrix::identity() + { + *mpImpl = Impl3DHomMatrix(); + } + + void B3DHomMatrix::invert() + { + Impl3DHomMatrix aWork(*mpImpl); + std::unique_ptr<sal_uInt16[]> pIndex( new sal_uInt16[Impl3DHomMatrix_Base::getEdgeLength()] ); + sal_Int16 nParity; + + if(aWork.ludcmp(pIndex.get(), nParity)) + { + mpImpl->doInvert(aWork, pIndex.get()); + } + } + + double B3DHomMatrix::determinant() const + { + return mpImpl->doDeterminant(); + } + + B3DHomMatrix& B3DHomMatrix::operator+=(const B3DHomMatrix& rMat) + { + mpImpl->doAddMatrix(*rMat.mpImpl); + return *this; + } + + B3DHomMatrix& B3DHomMatrix::operator-=(const B3DHomMatrix& rMat) + { + mpImpl->doSubMatrix(*rMat.mpImpl); + return *this; + } + + B3DHomMatrix& B3DHomMatrix::operator*=(double fValue) + { + const double fOne(1.0); + + if(!fTools::equal(fOne, fValue)) + mpImpl->doMulMatrix(fValue); + + return *this; + } + + B3DHomMatrix& B3DHomMatrix::operator/=(double fValue) + { + const double fOne(1.0); + + if(!fTools::equal(fOne, fValue)) + mpImpl->doMulMatrix(1.0 / fValue); + + return *this; + } + + B3DHomMatrix& B3DHomMatrix::operator*=(const B3DHomMatrix& rMat) + { + if(rMat.isIdentity()) + { + // multiply with identity, no change -> nothing to do + } + else if(isIdentity()) + { + // we are identity, result will be rMat -> assign + *this = rMat; + } + else + { + // multiply + mpImpl->doMulMatrix(*rMat.mpImpl); + } + return *this; + } + + bool B3DHomMatrix::operator==(const B3DHomMatrix& rMat) const + { + if(mpImpl.same_object(rMat.mpImpl)) + return true; + + return mpImpl->isEqual(*rMat.mpImpl); + } + + bool B3DHomMatrix::operator!=(const B3DHomMatrix& rMat) const + { + return !(*this == rMat); + } + + void B3DHomMatrix::rotate(double fAngleX,double fAngleY,double fAngleZ) + { + if(fTools::equalZero(fAngleX) && fTools::equalZero(fAngleY) && fTools::equalZero(fAngleZ)) + return; + + if(!fTools::equalZero(fAngleX)) + { + Impl3DHomMatrix aRotMatX; + double fSin(sin(fAngleX)); + double fCos(cos(fAngleX)); + + aRotMatX.set(1, 1, fCos); + aRotMatX.set(2, 2, fCos); + aRotMatX.set(2, 1, fSin); + aRotMatX.set(1, 2, -fSin); + + mpImpl->doMulMatrix(aRotMatX); + } + + if(!fTools::equalZero(fAngleY)) + { + Impl3DHomMatrix aRotMatY; + double fSin(sin(fAngleY)); + double fCos(cos(fAngleY)); + + aRotMatY.set(0, 0, fCos); + aRotMatY.set(2, 2, fCos); + aRotMatY.set(0, 2, fSin); + aRotMatY.set(2, 0, -fSin); + + mpImpl->doMulMatrix(aRotMatY); + } + + if(fTools::equalZero(fAngleZ)) + return; + + Impl3DHomMatrix aRotMatZ; + double fSin(sin(fAngleZ)); + double fCos(cos(fAngleZ)); + + aRotMatZ.set(0, 0, fCos); + aRotMatZ.set(1, 1, fCos); + aRotMatZ.set(1, 0, fSin); + aRotMatZ.set(0, 1, -fSin); + + mpImpl->doMulMatrix(aRotMatZ); + } + + void B3DHomMatrix::rotate(const B3DTuple& rRotation) + { + rotate(rRotation.getX(), rRotation.getY(), rRotation.getZ()); + } + + void B3DHomMatrix::translate(double fX, double fY, double fZ) + { + if(!fTools::equalZero(fX) || !fTools::equalZero(fY) || !fTools::equalZero(fZ)) + { + Impl3DHomMatrix aTransMat; + + aTransMat.set(0, 3, fX); + aTransMat.set(1, 3, fY); + aTransMat.set(2, 3, fZ); + + mpImpl->doMulMatrix(aTransMat); + } + } + + void B3DHomMatrix::translate(const B3DTuple& rRotation) + { + translate(rRotation.getX(), rRotation.getY(), rRotation.getZ()); + } + + void B3DHomMatrix::scale(double fX, double fY, double fZ) + { + const double fOne(1.0); + + if(!fTools::equal(fOne, fX) || !fTools::equal(fOne, fY) ||!fTools::equal(fOne, fZ)) + { + Impl3DHomMatrix aScaleMat; + + aScaleMat.set(0, 0, fX); + aScaleMat.set(1, 1, fY); + aScaleMat.set(2, 2, fZ); + + mpImpl->doMulMatrix(aScaleMat); + } + } + + void B3DHomMatrix::scale(const B3DTuple& rRotation) + { + scale(rRotation.getX(), rRotation.getY(), rRotation.getZ()); + } + + void B3DHomMatrix::shearXY(double fSx, double fSy) + { + // #i76239# do not test against 1.0, but against 0.0. We are talking about a value not on the diagonal (!) + if(!fTools::equalZero(fSx) || !fTools::equalZero(fSy)) + { + Impl3DHomMatrix aShearXYMat; + + aShearXYMat.set(0, 2, fSx); + aShearXYMat.set(1, 2, fSy); + + mpImpl->doMulMatrix(aShearXYMat); + } + } + + void B3DHomMatrix::shearXZ(double fSx, double fSz) + { + // #i76239# do not test against 1.0, but against 0.0. We are talking about a value not on the diagonal (!) + if(!fTools::equalZero(fSx) || !fTools::equalZero(fSz)) + { + Impl3DHomMatrix aShearXZMat; + + aShearXZMat.set(0, 1, fSx); + aShearXZMat.set(2, 1, fSz); + + mpImpl->doMulMatrix(aShearXZMat); + } + } + void B3DHomMatrix::frustum(double fLeft, double fRight, double fBottom, double fTop, double fNear, double fFar) + { + const double fZero(0.0); + const double fOne(1.0); + + if(!fTools::more(fNear, fZero)) + { + fNear = 0.001; + } + + if(!fTools::more(fFar, fZero)) + { + fFar = fOne; + } + + if(fTools::equal(fNear, fFar)) + { + fFar = fNear + fOne; + } + + if(fTools::equal(fLeft, fRight)) + { + fLeft -= fOne; + fRight += fOne; + } + + if(fTools::equal(fTop, fBottom)) + { + fBottom -= fOne; + fTop += fOne; + } + + Impl3DHomMatrix aFrustumMat; + + aFrustumMat.set(0, 0, 2.0 * fNear / (fRight - fLeft)); + aFrustumMat.set(1, 1, 2.0 * fNear / (fTop - fBottom)); + aFrustumMat.set(0, 2, (fRight + fLeft) / (fRight - fLeft)); + aFrustumMat.set(1, 2, (fTop + fBottom) / (fTop - fBottom)); + aFrustumMat.set(2, 2, -fOne * ((fFar + fNear) / (fFar - fNear))); + aFrustumMat.set(3, 2, -fOne); + aFrustumMat.set(2, 3, -fOne * ((2.0 * fFar * fNear) / (fFar - fNear))); + aFrustumMat.set(3, 3, fZero); + + mpImpl->doMulMatrix(aFrustumMat); + } + + void B3DHomMatrix::ortho(double fLeft, double fRight, double fBottom, double fTop, double fNear, double fFar) + { + if(fTools::equal(fNear, fFar)) + { + fFar = fNear + 1.0; + } + + if(fTools::equal(fLeft, fRight)) + { + fLeft -= 1.0; + fRight += 1.0; + } + + if(fTools::equal(fTop, fBottom)) + { + fBottom -= 1.0; + fTop += 1.0; + } + + Impl3DHomMatrix aOrthoMat; + + aOrthoMat.set(0, 0, 2.0 / (fRight - fLeft)); + aOrthoMat.set(1, 1, 2.0 / (fTop - fBottom)); + aOrthoMat.set(2, 2, -1.0 * (2.0 / (fFar - fNear))); + aOrthoMat.set(0, 3, -1.0 * ((fRight + fLeft) / (fRight - fLeft))); + aOrthoMat.set(1, 3, -1.0 * ((fTop + fBottom) / (fTop - fBottom))); + aOrthoMat.set(2, 3, -1.0 * ((fFar + fNear) / (fFar - fNear))); + + mpImpl->doMulMatrix(aOrthoMat); + } + + void B3DHomMatrix::orientation(const B3DPoint& rVRP, B3DVector aVPN, B3DVector aVUV) + { + Impl3DHomMatrix aOrientationMat; + + // translate -VRP + aOrientationMat.set(0, 3, -rVRP.getX()); + aOrientationMat.set(1, 3, -rVRP.getY()); + aOrientationMat.set(2, 3, -rVRP.getZ()); + + // build rotation + aVUV.normalize(); + aVPN.normalize(); + + // build x-axis as perpendicular from aVUV and aVPN + B3DVector aRx(aVUV.getPerpendicular(aVPN)); + aRx.normalize(); + + // y-axis perpendicular to that + B3DVector aRy(aVPN.getPerpendicular(aRx)); + aRy.normalize(); + + // the calculated normals are the line vectors of the rotation matrix, + // set them to create rotation + aOrientationMat.set(0, 0, aRx.getX()); + aOrientationMat.set(0, 1, aRx.getY()); + aOrientationMat.set(0, 2, aRx.getZ()); + aOrientationMat.set(1, 0, aRy.getX()); + aOrientationMat.set(1, 1, aRy.getY()); + aOrientationMat.set(1, 2, aRy.getZ()); + aOrientationMat.set(2, 0, aVPN.getX()); + aOrientationMat.set(2, 1, aVPN.getY()); + aOrientationMat.set(2, 2, aVPN.getZ()); + + mpImpl->doMulMatrix(aOrientationMat); + } + + void B3DHomMatrix::decompose(B3DTuple& rScale, B3DTuple& rTranslate, B3DTuple& rRotate, B3DTuple& rShear) const + { + // when perspective is used, decompose is not made here + if(!mpImpl->isLastLineDefault()) + return; + + // If determinant is zero, decomposition is not possible + if(determinant() == 0.0) + return; + + // isolate translation + rTranslate.setX(mpImpl->get(0, 3)); + rTranslate.setY(mpImpl->get(1, 3)); + rTranslate.setZ(mpImpl->get(2, 3)); + + // correct translate values + rTranslate.correctValues(); + + // get scale and shear + B3DVector aCol0(mpImpl->get(0, 0), mpImpl->get(1, 0), mpImpl->get(2, 0)); + B3DVector aCol1(mpImpl->get(0, 1), mpImpl->get(1, 1), mpImpl->get(2, 1)); + B3DVector aCol2(mpImpl->get(0, 2), mpImpl->get(1, 2), mpImpl->get(2, 2)); + B3DVector aTemp; + + // get ScaleX + rScale.setX(aCol0.getLength()); + aCol0.normalize(); + + // get ShearXY + rShear.setX(aCol0.scalar(aCol1)); + + if(fTools::equalZero(rShear.getX())) + { + rShear.setX(0.0); + } + else + { + aTemp.setX(aCol1.getX() - rShear.getX() * aCol0.getX()); + aTemp.setY(aCol1.getY() - rShear.getX() * aCol0.getY()); + aTemp.setZ(aCol1.getZ() - rShear.getX() * aCol0.getZ()); + aCol1 = aTemp; + } + + // get ScaleY + rScale.setY(aCol1.getLength()); + aCol1.normalize(); + + const double fShearX(rShear.getX()); + + if(!fTools::equalZero(fShearX)) + { + rShear.setX(rShear.getX() / rScale.getY()); + } + + // get ShearXZ + rShear.setY(aCol0.scalar(aCol2)); + + if(fTools::equalZero(rShear.getY())) + { + rShear.setY(0.0); + } + else + { + aTemp.setX(aCol2.getX() - rShear.getY() * aCol0.getX()); + aTemp.setY(aCol2.getY() - rShear.getY() * aCol0.getY()); + aTemp.setZ(aCol2.getZ() - rShear.getY() * aCol0.getZ()); + aCol2 = aTemp; + } + + // get ShearYZ + rShear.setZ(aCol1.scalar(aCol2)); + + if(fTools::equalZero(rShear.getZ())) + { + rShear.setZ(0.0); + } + else + { + aTemp.setX(aCol2.getX() - rShear.getZ() * aCol1.getX()); + aTemp.setY(aCol2.getY() - rShear.getZ() * aCol1.getY()); + aTemp.setZ(aCol2.getZ() - rShear.getZ() * aCol1.getZ()); + aCol2 = aTemp; + } + + // get ScaleZ + rScale.setZ(aCol2.getLength()); + aCol2.normalize(); + + const double fShearY(rShear.getY()); + + if(!fTools::equalZero(fShearY)) + { + // coverity[copy_paste_error : FALSE] - this is correct getZ, not getY + rShear.setY(rShear.getY() / rScale.getZ()); + } + + const double fShearZ(rShear.getZ()); + + if(!fTools::equalZero(fShearZ)) + { + // coverity[original] - this is not an original copy-and-paste source for ^^^ + rShear.setZ(rShear.getZ() / rScale.getZ()); + } + + // correct shear values + rShear.correctValues(); + + // Coordinate system flip? + if(0.0 > aCol0.scalar(aCol1.getPerpendicular(aCol2))) + { + rScale = -rScale; + aCol0 = -aCol0; + aCol1 = -aCol1; + aCol2 = -aCol2; + } + + // correct scale values + rScale.correctValues(1.0); + + // Get rotations + { + double fy=0; + double cy=0; + + if( ::basegfx::fTools::equal( aCol0.getZ(), 1.0 ) + || aCol0.getZ() > 1.0 ) + { + fy = -M_PI/2.0; + cy = 0.0; + } + else if( ::basegfx::fTools::equal( aCol0.getZ(), -1.0 ) + || aCol0.getZ() < -1.0 ) + { + fy = M_PI/2.0; + cy = 0.0; + } + else + { + fy = asin( -aCol0.getZ() ); + cy = cos(fy); + } + + rRotate.setY(fy); + if( ::basegfx::fTools::equalZero( cy ) ) + { + if( aCol0.getZ() > 0.0 ) + rRotate.setX(atan2(-1.0*aCol1.getX(), aCol1.getY())); + else + rRotate.setX(atan2(aCol1.getX(), aCol1.getY())); + rRotate.setZ(0.0); + } + else + { + rRotate.setX(atan2(aCol1.getZ(), aCol2.getZ())); + rRotate.setZ(atan2(aCol0.getY(), aCol0.getX())); + } + + // correct rotate values + rRotate.correctValues(); + } + } +} // end of namespace basegfx + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |