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Diffstat (limited to 'src/location/mapsgl/map3d/sphere_p.h')
| -rw-r--r-- | src/location/mapsgl/map3d/sphere_p.h | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/location/mapsgl/map3d/sphere_p.h b/src/location/mapsgl/map3d/sphere_p.h new file mode 100644 index 00000000..f6ec0d65 --- /dev/null +++ b/src/location/mapsgl/map3d/sphere_p.h @@ -0,0 +1,177 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#ifndef SPHERE_P_H +#define SPHERE_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <QVector3D> +#include <QPair> +#include <qplane3d.h> +#include <QDebug> + +class Q_AUTOTEST_EXPORT Arc { +public: + Arc(); + Arc(const QPlane3D &plane, + double sphereRadius, + const QVector3D &start = QVector3D(), + const QVector3D &end = QVector3D()); + + bool operator == (const Arc &rhs); + + void setPlane(const QPlane3D &plane); + QPlane3D plane() const; + + QVector3D center() const; + double radius() const; + double sphereRadius() const; + + void setStart(const QVector3D &start); + QVector3D start() const; + + void setEnd(const QVector3D &end); + QVector3D end() const; + + QVector3D interpolate(double n) const; + QPair<QVector3D, QVector3D> intersects(const QPlane3D &plane) const; + + QPair<double, double> xIntersectFactor(double x) const; + QPair<double, double> yIntersectFactor(double y) const; + QPair<double, double> tIntersectFactor(double x, double y) const; + + bool belowPlane(const QPlane3D &plane) const; + +private: + QPair<double, double> intersects(double start, double end, double center, double target) const; + static QPair<double, double> quadraticResults(double a, double b, double c, bool clip = true); + + QPair<QVector3D, QVector3D> intersect2(const QPlane3D &plane) const; + + QPlane3D plane_; + double sphereRadius_; + QVector3D center_; + double radius_; + QVector3D start_; + QVector3D end_; +}; + +QDebug operator << (QDebug dbg, const Arc &arc); + +struct PatchData { + QVector3D point; + QPlane3D plane; + int intersectIndex; + bool done; + + bool operator == (const PatchData &rhs); +}; + +class Q_AUTOTEST_EXPORT SpherePatch { +public: + SpherePatch(double radius, const QList<Arc> arcs, bool roundUp = false, bool planar = false); + SpherePatch(double radius, const QList<PatchData> &data, bool roundUp, bool planar = false); + + bool operator == (const SpherePatch &rhs); + bool isomorphic(const SpherePatch &rhs); + + int arcCount() const; + Arc arc(int index) const; + + void setRoundUpTiles(bool roundUp); + bool roundUpTiles() const; + + QList<SpherePatch> intersect(const QPlane3D &plane); + +private: + bool inFrontOfPlane(const QPlane3D &plane) const; + bool behindPlane(const QPlane3D &plane) const; + bool containsPoint(const QVector3D &point) const; + + QList<int> split(SpherePatch &patch, const QPlane3D &plane, int &arcCount, int &doubleCount); + void handleCircleEdgeIntersection(SpherePatch &patch, const QPlane3D &plane, QList<int> &intersections); + QList<SpherePatch> noIntersectPatches(const QPlane3D &plane) const; + void arrangeIntersections(SpherePatch &patch, const QPlane3D &plane, const QList<int> &intersections); + void setupPlanes(QList<PatchData> &data, const QPlane3D &plane); + QList<SpherePatch> divide(SpherePatch &patch, const QPlane3D &plane, const QList<int> &intersections); + + QList<PatchData> data_; +// QList<int> intersections_; + + double radius_; + //QList<Arc> arcs_; + bool roundUp_; + bool planar_; + bool debug_; +}; + +QDebug operator << (QDebug dbg, const SpherePatch &patch); + +class Q_AUTOTEST_EXPORT Sphere { +public: + Sphere(double radius = 20000.0); + Sphere(double radius, const QList<SpherePatch> &patches); + + bool operator == (const Sphere &rhs); + bool isomorphic (const Sphere &rhs); + + QList<SpherePatch> patches() const; + + void intersect(const QPlane3D &plane); + +private: + double radius_; + QList<SpherePatch> patches_; +}; + +Q_AUTOTEST_EXPORT QDebug operator << (QDebug dbg, const Sphere &sphere); + + +#endif // SPHERE_P_H |