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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 .
*/
#ifndef _DXFVEC_HXX
#define _DXFVEC_HXX
#include <sal/types.h>
#include <vcl/lineinfo.hxx>
class Point;
class DXFLineInfo {
public:
LineStyle eStyle;
double fWidth;
sal_Int32 nDashCount;
double fDashLen;
sal_Int32 nDotCount;
double fDotLen;
double fDistance;
DXFLineInfo() :
eStyle(LINE_SOLID),
fWidth(0),
nDashCount(0),
fDashLen(0),
nDotCount(0),
fDotLen(0),
fDistance(0) {}
DXFLineInfo(const DXFLineInfo& x) :
eStyle(x.eStyle),
fWidth(x.fWidth),
nDashCount(x.nDashCount),
fDashLen(x.fDashLen),
nDotCount(x.nDotCount),
fDotLen(x.fDotLen),
fDistance(x.fDistance) {}
};
//------------------------------------------------------------------------------
//---------------------------- DXFVector ---------------------------------------
//------------------------------------------------------------------------------
// Allgemeiner 3D-Vektor mit double
class DXFVector {
public:
double fx,fy,fz; // public ! - why not?
inline DXFVector(double fX=0.0, double fY=0.0, double fZ=0.0);
inline DXFVector(const DXFVector & rV);
// Addition/Subtraktion:
DXFVector & operator += (const DXFVector & rV);
DXFVector operator + (const DXFVector & rV) const;
DXFVector & operator -= (const DXFVector & rV);
DXFVector operator - (const DXFVector & rV) const;
// Vektorprodukt
DXFVector operator * (const DXFVector & rV) const;
// Skalarprodukt:
double SProd(const DXFVector & rV) const;
// Multiplikation mit Skalar:
DXFVector & operator *= (double fs);
DXFVector operator * (double fs) const;
// length:
double Abs() const;
// Vektor gleicher Richtung und der Laenge 1:
DXFVector Unit() const;
// Aequivalenz oder nicht:
sal_Bool operator == (const DXFVector & rV) const;
sal_Bool operator != (const DXFVector & rV) const;
};
//------------------------------------------------------------------------------
//---------------------------- DXFTransform ------------------------------------
//------------------------------------------------------------------------------
// Eine Transformationsmatrix, spezialisiert auf unser Problem
class DXFTransform {
public:
DXFTransform();
// Zielkoordinate = Quellkoordinate
DXFTransform(double fScaleX, double fScaleY, double fScaleZ,
const DXFVector & rShift);
// Zielkoordinate = Verschoben(Skaliert(Quellkoorinate))
DXFTransform(double fScaleX, double fScaleY, double fScaleZ,
double fRotAngle,
const DXFVector & rShift);
// Zielkoordinate = Verschoben(Gedreht(Skaliert(Quellkoorinate)))
// Drehung geshieht um die Z-Achse, fRotAngle in Grad.
DXFTransform(const DXFVector & rExtrusion);
// Transformation "ECS->WCS" per "Entity Extrusion Direction"
// und dem "Arbitrary Axis Algorithm"
// (Siehe DXF-Docu von AutoDesk)
DXFTransform(const DXFVector & rViewDir, const DXFVector & rViewTarget);
// Transformation Objektraum->Bildraum anhand von Richtung und
// Zielpunkt eines ViewPort.
// (siehe DXF-Docu von AutoDesk: VPORT)
DXFTransform(const DXFTransform & rT1, const DXFTransform & rT2);
// Zielkoordinate = rT2(rT1(Quellkoorinate))
void Transform(const DXFVector & rSrc, DXFVector & rTgt) const;
// Transformation DXFVector nach DXFVector
void Transform(const DXFVector & rSrc, Point & rTgt) const;
// Transformation DXFVector nach SvPoint
void TransDir(const DXFVector & rSrc, DXFVector & rTgt) const;
// Transformation eines relativen Vektors (also kein Verschiebung)
sal_Bool TransCircleToEllipse(double fRadius, double & rEx, double & rEy) const;
// Versucht, einen Kreis (in der XY-Ebene) zu transformieren, so dass eine
// ausgerichtete Ellipse entsteht. Wenn das nicht geht, weil Ellipse
// in belibieger Lage entstehen wuerde, wird sal_False geliefert.
// (Der Mittelpunkt wird hiermit nicht transformiert, nehme Transform(..))
sal_uLong TransLineWidth(double fW) const;
// Transformiert die Liniendicke (so gut es geht)
double CalcRotAngle() const;
// Ermittelt den Rotationswinkel um die Z-Achse (in Grad)
sal_Bool Mirror() const;
// Liefert sal_True, wenn die Matrix ein Linkssystem bildet
LineInfo Transform(const DXFLineInfo& aDXFLineInfo) const;
// Transform to LineInfo
private:
DXFVector aMX;
DXFVector aMY;
DXFVector aMZ;
DXFVector aMP;
};
//------------------------------------------------------------------------------
//------------------------------- inlines --------------------------------------
//------------------------------------------------------------------------------
inline DXFVector::DXFVector(double fX, double fY, double fZ)
{
fx=fX; fy=fY; fz=fZ;
}
inline DXFVector::DXFVector(const DXFVector & rV)
{
fx=rV.fx; fy=rV.fy; fz=rV.fz;
}
inline DXFVector & DXFVector::operator += (const DXFVector & rV)
{
fx+=rV.fx; fy+=rV.fy; fz+=rV.fz;
return *this;
}
inline DXFVector DXFVector::operator + (const DXFVector & rV) const
{
return DXFVector(fx+rV.fx, fy+rV.fy, fz+rV.fz);
}
inline DXFVector & DXFVector::operator -= (const DXFVector & rV)
{
fx-=rV.fx; fy-=rV.fy; fz-=rV.fz;
return *this;
}
inline DXFVector DXFVector::operator - (const DXFVector & rV) const
{
return DXFVector(fx-rV.fx, fy-rV.fy, fz-rV.fz);
}
inline DXFVector DXFVector::operator * (const DXFVector & rV) const
{
return DXFVector(
fy * rV.fz - fz * rV.fy,
fz * rV.fx - fx * rV.fz,
fx * rV.fy - fy * rV.fx
);
}
inline double DXFVector::SProd(const DXFVector & rV) const
{
return fx*rV.fx + fy*rV.fy + fz*rV.fz;
}
inline DXFVector & DXFVector::operator *= (double fs)
{
fx*=fs; fy*=fs; fz*=fs;
return *this;
}
inline DXFVector DXFVector::operator * (double fs) const
{
return DXFVector(fx*fs,fy*fs,fz*fs);
}
inline sal_Bool DXFVector::operator == (const DXFVector & rV) const
{
if (fx==rV.fx && fy==rV.fy && fz==rV.fz) return sal_True;
else return sal_False;
}
inline sal_Bool DXFVector::operator != (const DXFVector & rV) const
{
if (fx!=rV.fx || fy!=rV.fy || fz!=rV.fz) return sal_True;
else return sal_False;
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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