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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:51:28 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:51:28 +0000
commit940b4d1848e8c70ab7642901a68594e8016caffc (patch)
treeeb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /include/basegfx/vector
parentInitial commit. (diff)
downloadlibreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.tar.xz
libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.zip
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/basegfx/vector')
-rw-r--r--include/basegfx/vector/b2dsize.hxx33
-rw-r--r--include/basegfx/vector/b2dvector.hxx238
-rw-r--r--include/basegfx/vector/b2enums.hxx65
-rw-r--r--include/basegfx/vector/b2isize.hxx33
-rw-r--r--include/basegfx/vector/b2ivector.hxx130
-rw-r--r--include/basegfx/vector/b3dvector.hxx259
6 files changed, 758 insertions, 0 deletions
diff --git a/include/basegfx/vector/b2dsize.hxx b/include/basegfx/vector/b2dsize.hxx
new file mode 100644
index 000000000..6ae6de5e8
--- /dev/null
+++ b/include/basegfx/vector/b2dsize.hxx
@@ -0,0 +1,33 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <basegfx/vector/b2dvector.hxx>
+
+namespace basegfx
+{
+ // syntactic sugar: a B2DVector exactly models a Size object,
+ // thus, for interface clarity, we provide an alias name
+
+ /// Alias name for interface clarity (not everybody is aware of the identity)
+ typedef B2DVector B2DSize;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/basegfx/vector/b2dvector.hxx b/include/basegfx/vector/b2dvector.hxx
new file mode 100644
index 000000000..cfb1e58d1
--- /dev/null
+++ b/include/basegfx/vector/b2dvector.hxx
@@ -0,0 +1,238 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <basegfx/tuple/b2dtuple.hxx>
+#include <basegfx/vector/b2ivector.hxx>
+#include <basegfx/vector/b2enums.hxx>
+#include <basegfx/basegfxdllapi.h>
+
+namespace basegfx
+{
+ class B2DHomMatrix;
+
+ /** Base Point class with two double values
+
+ This class derives all operators and common handling for
+ a 2D data class from B2DTuple. All necessary extensions
+ which are special for 2D Vectors are added here.
+
+ @see B2DTuple
+ */
+ class SAL_WARN_UNUSED BASEGFX_DLLPUBLIC B2DVector : public ::basegfx::B2DTuple
+ {
+ public:
+ /** Create a 2D Vector
+
+ The vector is initialized to (0.0, 0.0)
+ */
+ B2DVector()
+ : B2DTuple()
+ {}
+
+ /** Create a 2D Vector
+
+ @param fX
+ This parameter is used to initialize the X-coordinate
+ of the 2D Vector.
+
+ @param fY
+ This parameter is used to initialize the Y-coordinate
+ of the 2D Vector.
+ */
+ B2DVector(double fX, double fY)
+ : B2DTuple(fX, fY)
+ {}
+
+ /** Create a copy of a 2D Vector
+
+ @param rVec
+ The 2D Vector which will be copied.
+ */
+ explicit B2DVector(const ::basegfx::B2IVector& rVec)
+ : B2DTuple(rVec)
+ {}
+
+ /** constructor with tuple to allow copy-constructing
+ from B2DTuple-based classes
+ */
+ B2DVector(const ::basegfx::B2DTuple& rTuple)
+ : B2DTuple(rTuple)
+ {}
+
+ /** *=operator to allow usage from B2DVector, too
+ */
+ B2DVector& operator*=( const B2DVector& rPnt )
+ {
+ mfX *= rPnt.mfX;
+ mfY *= rPnt.mfY;
+ return *this;
+ }
+
+ /** *=operator to allow usage from B2DVector, too
+ */
+ B2DVector& operator*=(double t)
+ {
+ mfX *= t;
+ mfY *= t;
+ return *this;
+ }
+
+ /** assignment operator to allow assigning the results
+ of B2DTuple calculations
+ */
+ B2DVector& operator=( const ::basegfx::B2DTuple& rVec );
+
+ /** Calculate the length of this 2D Vector
+
+ @return The Length of the 2D Vector
+ */
+ double getLength() const;
+
+ /** Set the length of this 2D Vector
+
+ @param fLen
+ The to be achieved length of the 2D Vector
+ */
+ B2DVector& setLength(double fLen);
+
+ /** Normalize this 2D Vector
+
+ The length of the 2D Vector is set to 1.0
+ */
+ B2DVector& normalize();
+
+ /** Calculate the Scalar with another 2D Vector
+
+ @param rVec
+ The second 2D Vector
+
+ @return
+ The Scalar value of the two involved 2D Vectors
+ */
+ double scalar( const B2DVector& rVec ) const { return((mfX * rVec.mfX) + (mfY * rVec.mfY)); }
+
+ /** Calculate the length of the cross product with another 2D Vector
+
+ In 2D, returning an actual vector does not make much
+ sense here. The magnitude, although, can be readily
+ used for tasks such as angle calculations, since for
+ the returned value, the following equation holds:
+ retVal = getLength(this)*getLength(rVec)*sin(theta),
+ with theta being the angle between the two vectors.
+
+ @param rVec
+ The second 2D Vector
+
+ @return
+ The length of the cross product of the two involved 2D Vectors
+ */
+ double cross( const B2DVector& rVec ) const { return(mfX * rVec.getY() - mfY * rVec.getX()); }
+
+ /** Calculate the Angle with another 2D Vector
+
+ @param rVec
+ The second 2D Vector
+
+ @return
+ The Angle value of the two involved 2D Vectors ranging from -pi to +pi
+ */
+ double angle( const B2DVector& rVec ) const;
+
+ /** Transform vector by given transformation matrix.
+
+ Since this is a vector, translational components of the
+ matrix are disregarded.
+ */
+ B2DVector& operator*=( const B2DHomMatrix& rMat );
+
+ static const B2DVector& getEmptyVector();
+ };
+
+ // external operators
+
+
+ /** Calculate the orientation to another 2D Vector
+
+ @param rVecA
+ The first 2D Vector
+
+ @param rVecB
+ The second 2D Vector
+
+ @return
+ The mathematical Orientation of the two involved 2D Vectors
+ */
+ BASEGFX_DLLPUBLIC B2VectorOrientation getOrientation( const B2DVector& rVecA, const B2DVector& rVecB );
+
+ /** Calculate a perpendicular 2D Vector to the given one
+
+ @param rVec
+ The source 2D Vector
+
+ @attention This only works if the given 2D Vector is normalized.
+
+ @return
+ A 2D Vector perpendicular to the one given in parameter rVec
+ */
+ BASEGFX_DLLPUBLIC B2DVector getPerpendicular( const B2DVector& rNormalizedVec );
+
+ /** Calculate a perpendicular 2D Vector to the given one,
+ normalize the given one as preparation
+
+ @param rVec
+ The source 2D Vector
+
+ @return
+ A normalized 2D Vector perpendicular to the one given in parameter rVec
+ */
+ BASEGFX_DLLPUBLIC B2DVector getNormalizedPerpendicular( const B2DVector& rVec );
+
+ /** Test two vectors which need not to be normalized for parallelism
+
+ @param rVecA
+ The first 2D Vector
+
+ @param rVecB
+ The second 2D Vector
+
+ @return
+ bool if the two values are parallel. Also true if
+ one of the vectors is empty.
+ */
+ BASEGFX_DLLPUBLIC bool areParallel( const B2DVector& rVecA, const B2DVector& rVecB );
+
+ /** Transform vector by given transformation matrix.
+
+ Since this is a vector, translational components of the
+ matrix are disregarded.
+ */
+ BASEGFX_DLLPUBLIC B2DVector operator*( const B2DHomMatrix& rMat, const B2DVector& rVec );
+
+ /** Test continuity between given vectors.
+
+ The two given vectors are assumed to describe control points on a
+ common point. Calculate if there is a continuity between them.
+ */
+ BASEGFX_DLLPUBLIC B2VectorContinuity getContinuity( const B2DVector& rBackVector, const B2DVector& rForwardVector );
+
+} // end of namespace basegfx
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/basegfx/vector/b2enums.hxx b/include/basegfx/vector/b2enums.hxx
new file mode 100644
index 000000000..803902370
--- /dev/null
+++ b/include/basegfx/vector/b2enums.hxx
@@ -0,0 +1,65 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+namespace basegfx
+{
+ /** Descriptor for the mathematical orientations of two 2D Vectors
+ */
+ enum class B2VectorOrientation
+ {
+ /// mathematically positive oriented
+ Positive = 0,
+
+ /// mathematically negative oriented
+ Negative,
+
+ /// mathematically neutral, thus parallel
+ Neutral
+ };
+
+ /** Descriptor for the mathematical continuity of two 2D Vectors
+ */
+ enum class B2VectorContinuity
+ {
+ /// none
+ NONE = 0,
+
+ /// mathematically negative oriented
+ C1,
+
+ /// mathematically neutral, thus parallel
+ C2
+ };
+
+ /** Descriptor for possible line joins between two line segments
+ */
+ enum class B2DLineJoin
+ {
+ NONE = 0, // no rounding
+ // removed unused Middle join type
+ Bevel = 2, // join edges with line
+ Miter = 3, // extend till cut
+ Round = 4 // create arc
+ };
+
+} // end of namespace basegfx
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/basegfx/vector/b2isize.hxx b/include/basegfx/vector/b2isize.hxx
new file mode 100644
index 000000000..5d299f4fd
--- /dev/null
+++ b/include/basegfx/vector/b2isize.hxx
@@ -0,0 +1,33 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <basegfx/vector/b2ivector.hxx>
+
+namespace basegfx
+{
+ // syntactic sugar: a B2IVector exactly models a Size object,
+ // thus, for interface clarity, we provide an alias name
+
+ /// Alias name for interface clarity (not everybody is aware of the identity)
+ typedef B2IVector B2ISize;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/basegfx/vector/b2ivector.hxx b/include/basegfx/vector/b2ivector.hxx
new file mode 100644
index 000000000..fbb1c6422
--- /dev/null
+++ b/include/basegfx/vector/b2ivector.hxx
@@ -0,0 +1,130 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <ostream>
+
+#include <basegfx/tuple/b2ituple.hxx>
+#include <basegfx/basegfxdllapi.h>
+
+namespace basegfx
+{
+ class B2DHomMatrix;
+
+ /** Base Point class with two sal_Int32 values
+
+ This class derives all operators and common handling for
+ a 2D data class from B2ITuple. All necessary extensions
+ which are special for 2D Vectors are added here.
+
+ @see B2ITuple
+ */
+ class BASEGFX_DLLPUBLIC B2IVector : public ::basegfx::B2ITuple
+ {
+ public:
+ /** Create a 2D Vector
+
+ The vector is initialized to (0, 0)
+ */
+ B2IVector()
+ : B2ITuple()
+ {}
+
+ /** Create a 2D Vector
+
+ @param nX
+ This parameter is used to initialize the X-coordinate
+ of the 2D Vector.
+
+ @param nY
+ This parameter is used to initialize the Y-coordinate
+ of the 2D Vector.
+ */
+ B2IVector(sal_Int32 nX, sal_Int32 nY)
+ : B2ITuple(nX, nY)
+ {}
+
+ /** constructor with tuple to allow copy-constructing
+ from B2ITuple-based classes
+ */
+ B2IVector(const ::basegfx::B2ITuple& rTuple)
+ : B2ITuple(rTuple)
+ {}
+
+ /** *=operator to allow usage from B2IVector, too
+ */
+ B2IVector& operator*=( const B2IVector& rPnt )
+ {
+ mnX *= rPnt.mnX;
+ mnY *= rPnt.mnY;
+ return *this;
+ }
+
+ /** *=operator to allow usage from B2IVector, too
+ */
+ B2IVector& operator*=(sal_Int32 t)
+ {
+ mnX *= t;
+ mnY *= t;
+ return *this;
+ }
+
+ /** assignment operator to allow assigning the results
+ of B2ITuple calculations
+ */
+ B2IVector& operator=( const ::basegfx::B2ITuple& rVec );
+
+ /** Set the length of this 2D Vector
+
+ @param fLen
+ The to be achieved length of the 2D Vector
+ */
+ B2IVector& setLength(double fLen);
+
+ /** Calculate the Scalar with another 2D Vector
+
+ @param rVec
+ The second 2D Vector
+
+ @return
+ The Scalar value of the two involved 2D Vectors
+ */
+ double scalar( const B2IVector& rVec ) const { return((mnX * rVec.mnX) + (mnY * rVec.mnY)); }
+
+ /** Transform vector by given transformation matrix.
+
+ Since this is a vector, translational components of the
+ matrix are disregarded.
+ */
+ B2IVector& operator*=( const B2DHomMatrix& rMat );
+ };
+
+ // external operators
+
+ template< typename charT, typename traits >
+ inline std::basic_ostream<charT, traits> & operator <<(
+ std::basic_ostream<charT, traits> & stream, const basegfx::B2IVector& vector )
+ {
+ return stream << "(" << vector.getX() << "," << vector.getY() << ")";
+ }
+
+} // end of namespace basegfx
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/basegfx/vector/b3dvector.hxx b/include/basegfx/vector/b3dvector.hxx
new file mode 100644
index 000000000..1f38d5dd7
--- /dev/null
+++ b/include/basegfx/vector/b3dvector.hxx
@@ -0,0 +1,259 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <basegfx/tuple/b3dtuple.hxx>
+#include <basegfx/basegfxdllapi.h>
+
+namespace basegfx
+{
+ class B3DHomMatrix;
+
+ /** Base Point class with three double values
+
+ This class derives all operators and common handling for
+ a 3D data class from B3DTuple. All necessary extensions
+ which are special for 3D Vectors are added here.
+
+ @see B3DTuple
+ */
+ class SAL_WARN_UNUSED BASEGFX_DLLPUBLIC B3DVector : public ::basegfx::B3DTuple
+ {
+ public:
+ /** Create a 3D Vector
+
+ The vector is initialized to (0.0, 0.0, 0.0)
+ */
+ B3DVector()
+ : B3DTuple()
+ {}
+
+ /** Create a 3D Vector
+
+ @param fX
+ This parameter is used to initialize the X-coordinate
+ of the 3D Vector.
+
+ @param fY
+ This parameter is used to initialize the Y-coordinate
+ of the 3D Vector.
+
+ @param fZ
+ This parameter is used to initialize the Z-coordinate
+ of the 3D Vector.
+ */
+ B3DVector(double fX, double fY, double fZ)
+ : B3DTuple(fX, fY, fZ)
+ {}
+
+ /** constructor with tuple to allow copy-constructing
+ from B3DTuple-based classes
+ */
+ B3DVector(const ::basegfx::B3DTuple& rTuple)
+ : B3DTuple(rTuple)
+ {}
+
+ /** *=operator to allow usage from B3DVector, too
+ */
+ B3DVector& operator*=( const B3DVector& rPnt )
+ {
+ mfX *= rPnt.mfX;
+ mfY *= rPnt.mfY;
+ mfZ *= rPnt.mfZ;
+ return *this;
+ }
+
+ /** *=operator to allow usage from B3DVector, too
+ */
+ B3DVector& operator*=(double t)
+ {
+ mfX *= t;
+ mfY *= t;
+ mfZ *= t;
+ return *this;
+ }
+
+ /** assignment operator to allow assigning the results
+ of B3DTuple calculations
+ */
+ B3DVector& operator=( const ::basegfx::B3DTuple& rVec )
+ {
+ mfX = rVec.getX();
+ mfY = rVec.getY();
+ mfZ = rVec.getZ();
+ return *this;
+ }
+
+ /** Calculate the length of this 3D Vector
+
+ @return The Length of the 3D Vector
+ */
+ double getLength() const
+ {
+ double fLen(scalar(*this));
+ if((0.0 == fLen) || (1.0 == fLen))
+ return fLen;
+ return sqrt(fLen);
+ }
+
+ /** Calculate the length in the XZ-Plane for this 3D Vector
+
+ @return The XZ-Plane Length of the 3D Vector
+ */
+ double getXZLength() const
+ {
+ double fLen((mfX * mfX) + (mfZ * mfZ)); // #i73040#
+ if((0.0 == fLen) || (1.0 == fLen))
+ return fLen;
+ return sqrt(fLen);
+ }
+
+ /** Calculate the length in the YZ-Plane for this 3D Vector
+
+ @return The YZ-Plane Length of the 3D Vector
+ */
+ double getYZLength() const
+ {
+ double fLen((mfY * mfY) + (mfZ * mfZ));
+ if((0.0 == fLen) || (1.0 == fLen))
+ return fLen;
+ return sqrt(fLen);
+ }
+
+ /** Set the length of this 3D Vector
+
+ @param fLen
+ The to be achieved length of the 3D Vector
+ */
+ B3DVector& setLength(double fLen)
+ {
+ double fLenNow(scalar(*this));
+
+ if(!::basegfx::fTools::equalZero(fLenNow))
+ {
+ const double fOne(1.0);
+
+ if(!::basegfx::fTools::equal(fOne, fLenNow))
+ {
+ fLen /= sqrt(fLenNow);
+ }
+
+ mfX *= fLen;
+ mfY *= fLen;
+ mfZ *= fLen;
+ }
+
+ return *this;
+ }
+
+ /** Normalize this 3D Vector
+
+ The length of the 3D Vector is set to 1.0
+ */
+ B3DVector& normalize();
+
+ /** get a 3D Vector which is perpendicular to this and a given 3D Vector
+
+ @attention This only works if this and the given 3D Vector are
+ both normalized.
+
+ @param rNormalizedVec
+ A normalized 3D Vector.
+
+ @return
+ A 3D Vector perpendicular to this and the given one
+ */
+ B3DVector getPerpendicular(const B3DVector& rNormalizedVec) const;
+
+ /** Calculate the Scalar product
+
+ This method calculates the Scalar product between this
+ and the given 3D Vector.
+
+ @param rVec
+ A second 3D Vector.
+
+ @return
+ The Scalar Product of two 3D Vectors
+ */
+ double scalar(const B3DVector& rVec) const
+ {
+ return ((mfX * rVec.mfX) + (mfY * rVec.mfY) + (mfZ * rVec.mfZ));
+ }
+
+ /** Transform vector by given transformation matrix.
+
+ Since this is a vector, translational components of the
+ matrix are disregarded.
+ */
+ B3DVector& operator*=( const B3DHomMatrix& rMat );
+
+ static const B3DVector& getEmptyVector()
+ {
+ return static_cast<const B3DVector&>( ::basegfx::B3DTuple::getEmptyTuple() );
+ }
+ };
+
+ // external operators
+
+
+ /** Test two vectors which need not to be normalized for parallelism
+
+ @param rVecA
+ The first 3D Vector
+
+ @param rVecB
+ The second 3D Vector
+
+ @return
+ bool if the two values are parallel. Also true if
+ one of the vectors is empty.
+ */
+ BASEGFX_DLLPUBLIC bool areParallel( const B3DVector& rVecA, const B3DVector& rVecB );
+
+ /** Transform vector by given transformation matrix.
+
+ Since this is a vector, translational components of the
+ matrix are disregarded.
+ */
+ BASEGFX_DLLPUBLIC B3DVector operator*( const B3DHomMatrix& rMat, const B3DVector& rVec );
+
+ /** Calculate the Cross Product of two 3D Vectors
+
+ @param rVecA
+ A first 3D Vector.
+
+ @param rVecB
+ A second 3D Vector.
+
+ @return
+ The Cross Product of both 3D Vectors
+ */
+ inline B3DVector cross(const B3DVector& rVecA, const B3DVector& rVecB)
+ {
+ B3DVector aVec(
+ rVecA.getY() * rVecB.getZ() - rVecA.getZ() * rVecB.getY(),
+ rVecA.getZ() * rVecB.getX() - rVecA.getX() * rVecB.getZ(),
+ rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecB.getX());
+ return aVec;
+ }
+} // end of namespace basegfx
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */