347112fbd8
Change-Id: I091b68bbeee74452a3d6a03711cfc482b7a78e1d Reviewed-on: https://gerrit.libreoffice.org/c/core/+/157685 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
239 lines
7 KiB
C++
239 lines
7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <sal/types.h>
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#include <basegfx/numeric/ftools.hxx>
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#include <basegfx/basegfxdllapi.h>
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#include <basegfx/tuple/Tuple3D.hxx>
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namespace basegfx
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{
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class B3ITuple;
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/** Base class for all Points/Vectors with three double values
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This class provides all methods common to Point
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and Vector classes which are derived from here.
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@derive Use this class to implement Points or Vectors
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which are based on three double values
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*/
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class SAL_WARN_UNUSED BASEGFX_DLLPUBLIC B3DTuple : public Tuple3D<double>
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{
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public:
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/** Create a 3D Tuple
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The tuple is initialized to (0.0, 0.0, 0.0)
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*/
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B3DTuple()
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: Tuple3D(0.0, 0.0, 0.0)
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{}
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/** Create a 3D Tuple
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@param fX
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This parameter is used to initialize the X-coordinate
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of the 3D Tuple.
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@param fY
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This parameter is used to initialize the Y-coordinate
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of the 3D Tuple.
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@param fZ
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This parameter is used to initialize the Z-coordinate
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of the 3D Tuple.
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*/
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B3DTuple(double fX, double fY, double fZ)
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: Tuple3D(fX, fY, fZ)
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{}
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/// Array-access to 3D Tuple
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const double& operator[] (int nPos) const
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{
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// Here, normally two if(...)'s should be used. In the assumption that
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// both double members can be accessed as an array a shortcut is used here.
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// if(0 == nPos) return mnX; if(1 == nPos) return mnY; return mnZ;
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return *((&mnX) + nPos);
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}
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/// Array-access to 3D Tuple
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double& operator[] (int nPos)
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{
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// Here, normally two if(...)'s should be used. In the assumption that
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// both double members can be accessed as an array a shortcut is used here.
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// if(0 == nPos) return mnX; if(1 == nPos) return mnY; return mnZ;
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return *((&mnX) + nPos);
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}
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// comparators with tolerance
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bool equalZero() const
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{
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return (this == &getEmptyTuple() ||
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(::basegfx::fTools::equalZero(mnX)
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&& ::basegfx::fTools::equalZero(mnY)
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&& ::basegfx::fTools::equalZero(mnZ)));
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}
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bool equal(const B3DTuple& rTup) const
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{
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return (
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this == &rTup ||
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(::basegfx::fTools::equal(mnX, rTup.mnX) &&
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::basegfx::fTools::equal(mnY, rTup.mnY) &&
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::basegfx::fTools::equal(mnZ, rTup.mnZ)));
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}
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// operators
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B3DTuple operator-(void) const
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{
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return B3DTuple(-mnX, -mnY, -mnZ);
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}
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bool operator==(const B3DTuple& rTup) const
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{
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return ::basegfx::fTools::equal(mnX, rTup.mnX) &&
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::basegfx::fTools::equal(mnY, rTup.mnY) &&
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::basegfx::fTools::equal(mnZ, rTup.mnZ);
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}
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bool operator!=(const B3DTuple& rTup) const { return !operator==(rTup); }
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void correctValues(const double fCompareValue = 0.0)
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{
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if(0.0 == fCompareValue)
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{
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if(::basegfx::fTools::equalZero(mnX))
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{
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mnX = 0.0;
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}
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if(::basegfx::fTools::equalZero(mnY))
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{
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mnY = 0.0;
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}
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if(::basegfx::fTools::equalZero(mnZ))
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{
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mnZ = 0.0;
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}
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}
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else
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{
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if(::basegfx::fTools::equal(mnX, fCompareValue))
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{
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mnX = fCompareValue;
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}
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if(::basegfx::fTools::equal(mnY, fCompareValue))
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{
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mnY = fCompareValue;
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}
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if(::basegfx::fTools::equal(mnZ, fCompareValue))
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{
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mnZ = fCompareValue;
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}
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}
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}
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static const B3DTuple& getEmptyTuple();
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};
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// external operators
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inline B3DTuple interpolate(const B3DTuple& rOld1, const B3DTuple& rOld2, double t)
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{
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if(rOld1 == rOld2)
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{
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return rOld1;
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}
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else if(0.0 >= t)
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{
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return rOld1;
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}
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else if(1.0 <= t)
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{
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return rOld2;
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}
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else
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{
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return B3DTuple(
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((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX(),
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((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY(),
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((rOld2.getZ() - rOld1.getZ()) * t) + rOld1.getZ());
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}
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}
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inline B3DTuple average(const B3DTuple& rOld1, const B3DTuple& rOld2)
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{
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return B3DTuple(
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rtl_math_approxEqual(rOld1.getX(), rOld2.getX()) ? rOld1.getX() : (rOld1.getX() + rOld2.getX()) * 0.5,
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rtl_math_approxEqual(rOld1.getY(), rOld2.getY()) ? rOld1.getY() : (rOld1.getY() + rOld2.getY()) * 0.5,
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rtl_math_approxEqual(rOld1.getZ(), rOld2.getZ()) ? rOld1.getZ() : (rOld1.getZ() + rOld2.getZ()) * 0.5);
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}
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inline B3DTuple operator+(const B3DTuple& rTupA, const B3DTuple& rTupB)
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{
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B3DTuple aSum(rTupA);
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aSum += rTupB;
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return aSum;
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}
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inline B3DTuple operator-(const B3DTuple& rTupA, const B3DTuple& rTupB)
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{
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B3DTuple aSub(rTupA);
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aSub -= rTupB;
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return aSub;
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}
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inline B3DTuple operator*(const B3DTuple& rTupA, const B3DTuple& rTupB)
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{
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B3DTuple aMul(rTupA);
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aMul *= rTupB;
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return aMul;
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}
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inline B3DTuple operator*(const B3DTuple& rTup, double t)
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{
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B3DTuple aNew(rTup);
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aNew *= t;
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return aNew;
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}
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inline B3DTuple operator/(const B3DTuple& rTup, double t)
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{
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B3DTuple aNew(rTup);
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aNew /= t;
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return aNew;
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}
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/** Round double to nearest integer for 3D tuple
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@return the nearest integer for this tuple
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*/
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BASEGFX_DLLPUBLIC B3ITuple fround(const B3DTuple& rTup);
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} // end of namespace basegfx
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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