diff options
Diffstat (limited to '')
| -rw-r--r-- | vcl/source/filter/idxf/dxfvec.hxx | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/vcl/source/filter/idxf/dxfvec.hxx b/vcl/source/filter/idxf/dxfvec.hxx new file mode 100644 index 000000000..59b6babc2 --- /dev/null +++ b/vcl/source/filter/idxf/dxfvec.hxx @@ -0,0 +1,218 @@ +/* -*- 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 INCLUDED_FILTER_SOURCE_GRAPHICFILTER_IDXF_DXFVEC_HXX +#define INCLUDED_FILTER_SOURCE_GRAPHICFILTER_IDXF_DXFVEC_HXX + +#include <sal/types.h> +#include <vcl/lineinfo.hxx> + +class Point; + +class DXFLineInfo { +public: + LineStyle eStyle; + sal_Int32 nDashCount; + double fDashLen; + sal_Int32 nDotCount; + double fDotLen; + double fDistance; + + DXFLineInfo() : + eStyle(LineStyle::Solid), + nDashCount(0), + fDashLen(0), + nDotCount(0), + fDotLen(0), + fDistance(0) {} +}; + + +//---------------------------- DXFVector --------------------------------------- + +// common 3D vector with doubles + +class DXFVector { + +public: + + double fx,fy,fz; // public ! - why not? + + inline DXFVector(double fX=0.0, double fY=0.0, double fZ=0.0); + + // summation/subtraktion: + DXFVector & operator += (const DXFVector & rV); + DXFVector operator + (const DXFVector & rV) const; + DXFVector operator - (const DXFVector & rV) const; + + // vector product + DXFVector operator * (const DXFVector & rV) const; + + // scalar product: + double SProd(const DXFVector & rV) const; + + // multiplication with scalar: + DXFVector & operator *= (double fs); + DXFVector operator * (double fs) const; + + // length: + double Abs() const; + + // vector with same direction and a length of 1: + DXFVector Unit() const; + + // equivalence or net: + bool operator == (const DXFVector & rV) const; +}; + + +//---------------------------- DXFTransform ------------------------------------ + +// a transformation matrice specialized for our problem + +class DXFTransform { + +public: + + DXFTransform(); + // destination coordinate = source coordinate + + DXFTransform(double fScaleX, double fScaleY, double fScaleZ, + const DXFVector & rShift); + // dest coordinate = translate(scale(source coordinate)) + + DXFTransform(double fScaleX, double fScaleY, double fScaleZ, + double fRotAngle, + const DXFVector & rShift); + // dest coordinate = translate(rotate(scale(source coordinate))) + // rotation around z-axis, fRotAngle in degrees. + + DXFTransform(const DXFVector & rExtrusion); + // Transformation "ECS->WCS" via "Entity Extrusion Direction" + // ant the "Arbitrary Axis Algorithm" + // (See DXF-Docu from AutoDesk) + + DXFTransform(const DXFVector & rViewDir, const DXFVector & rViewTarget); + // Transformation object space->picture space on the basis of direction + // destination point of a viewport + // (See DXF-Docu from AutoDesk: VPORT) + + DXFTransform(const DXFTransform & rT1, const DXFTransform & rT2); + // destination coordinate = rT2(rT1(source coordinate)) + + + void Transform(const DXFVector & rSrc, DXFVector & rTgt) const; + // Transformation from DXFVector to DXFVector + + void Transform(const DXFVector & rSrc, Point & rTgt) const; + // Transformation from DXFVector to SvPoint + + void TransDir(const DXFVector & rSrc, DXFVector & rTgt) const; + // Transformation of a relative vector (so no translation) + + bool TransCircleToEllipse(double fRadius, double & rEx, double & rEy) const; + // Attempt to transform a circle (in xy plane) so that it results + // in an aligned ellipse. If the does not work because an ellipse of + // arbitrary position would be created, sal_False is returned. + // (The center point will not be transformed, use Transform(..)) + + double CalcRotAngle() const; + // Calculates the rotation angle around z-axis (in degrees) + + bool Mirror() const; + // Returns sal_True, if the matrice represents a left-handed coordinate system + + 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::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(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 bool DXFVector::operator == (const DXFVector & rV) const +{ + if (fx==rV.fx && fy==rV.fy && fz==rV.fz) return true; + else return false; +} + + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |