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Diffstat (limited to 'src/positioning/qgeocircle.cpp')
| -rw-r--r-- | src/positioning/qgeocircle.cpp | 477 |
1 files changed, 0 insertions, 477 deletions
diff --git a/src/positioning/qgeocircle.cpp b/src/positioning/qgeocircle.cpp deleted file mode 100644 index 094a7dcb..00000000 --- a/src/positioning/qgeocircle.cpp +++ /dev/null @@ -1,477 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtPositioning module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qgeocircle.h" -#include "qgeocircle_p.h" - -#include "qgeocoordinate.h" -#include "qnumeric.h" -#include "qlocationutils_p.h" - -#include "qdoublevector2d_p.h" -#include "qdoublevector3d_p.h" -#include <cmath> -QT_BEGIN_NAMESPACE - -/*! - \class QGeoCircle - \inmodule QtPositioning - \ingroup QtPositioning-positioning - \since 5.2 - - \brief The QGeoCircle class defines a circular geographic area. - - The circle is defined in terms of a QGeoCoordinate which specifies the - center of the circle and a qreal which specifies the radius of the circle - in meters. - - The circle is considered invalid if the center coordinate is invalid - or if the radius is less than zero. - - This class is a \l Q_GADGET since Qt 5.5. It can be - \l{Cpp_value_integration_positioning}{directly used from C++ and QML}. -*/ - -/*! - \property QGeoCircle::center - \brief This property holds the center coordinate for the geo circle. - - The circle is considered invalid if this property contains an invalid - coordinate. - - A default constructed QGeoCircle uses an invalid \l QGeoCoordinate - as center. - - While this property is introduced in Qt 5.5, the related accessor functions - exist since the first version of this class. - - \since 5.5 -*/ - -/*! - \property QGeoCircle::radius - \brief This property holds the circle radius in meters. - - The circle is considered invalid if this property is negative. - - By default, the radius is initialized with \c -1. - - While this property is introduced in Qt 5.5, the related accessor functions - exist since the first version of this class. - - \since 5.5 -*/ - -inline QGeoCirclePrivate *QGeoCircle::d_func() -{ - return static_cast<QGeoCirclePrivate *>(d_ptr.data()); -} - -inline const QGeoCirclePrivate *QGeoCircle::d_func() const -{ - return static_cast<const QGeoCirclePrivate *>(d_ptr.constData()); -} - -struct CircleVariantConversions -{ - CircleVariantConversions() - { - QMetaType::registerConverter<QGeoShape, QGeoCircle>(); - QMetaType::registerConverter<QGeoCircle, QGeoShape>(); - } -}; - -Q_GLOBAL_STATIC(CircleVariantConversions, initCircleConversions) - -/*! - Constructs a new, invalid geo circle. -*/ -QGeoCircle::QGeoCircle() -: QGeoShape(new QGeoCirclePrivate) -{ - initCircleConversions(); -} - -/*! - Constructs a new geo circle centered at \a center and with a radius of \a radius meters. -*/ -QGeoCircle::QGeoCircle(const QGeoCoordinate ¢er, qreal radius) -{ - initCircleConversions(); - d_ptr = new QGeoCirclePrivate(center, radius); -} - -/*! - Constructs a new geo circle from the contents of \a other. -*/ -QGeoCircle::QGeoCircle(const QGeoCircle &other) -: QGeoShape(other) -{ - initCircleConversions(); -} - -/*! - Constructs a new geo circle from the contents of \a other. -*/ -QGeoCircle::QGeoCircle(const QGeoShape &other) -: QGeoShape(other) -{ - initCircleConversions(); - if (type() != QGeoShape::CircleType) - d_ptr = new QGeoCirclePrivate; -} - -/*! - Destroys this geo circle. -*/ -QGeoCircle::~QGeoCircle() {} - -/*! - Assigns \a other to this geo circle and returns a reference to this geo circle. -*/ -QGeoCircle &QGeoCircle::operator=(const QGeoCircle &other) -{ - QGeoShape::operator=(other); - return *this; -} - -bool QGeoCirclePrivate::isValid() const -{ - return m_center.isValid() && !qIsNaN(m_radius) && m_radius >= -1e-7; -} - -bool QGeoCirclePrivate::isEmpty() const -{ - return !isValid() || m_radius <= 1e-7; -} - -/*! - Sets the center coordinate of this geo circle to \a center. -*/ -void QGeoCircle::setCenter(const QGeoCoordinate ¢er) -{ - Q_D(QGeoCircle); - - d->setCenter(center); -} - -/*! - Returns the center coordinate of this geo circle. Equivalent to QGeoShape::center(). -*/ -QGeoCoordinate QGeoCircle::center() const -{ - Q_D(const QGeoCircle); - - return d->center(); -} - -/*! - Sets the radius in meters of this geo circle to \a radius. -*/ -void QGeoCircle::setRadius(qreal radius) -{ - Q_D(QGeoCircle); - - d->setRadius(radius); -} - -/*! - Returns the radius in meters of this geo circle. -*/ -qreal QGeoCircle::radius() const -{ - Q_D(const QGeoCircle); - - return d->m_radius; -} - -bool QGeoCirclePrivate::contains(const QGeoCoordinate &coordinate) const -{ - if (!isValid() || !coordinate.isValid()) - return false; - - // see QTBUG-41447 for details - qreal distance = m_center.distanceTo(coordinate); - if (qFuzzyCompare(distance, m_radius) || distance <= m_radius) - return true; - - return false; -} - -QGeoCoordinate QGeoCirclePrivate::center() const -{ - return m_center; -} - -QGeoRectangle QGeoCirclePrivate::boundingGeoRectangle() const -{ - return m_bbox; -} - -void QGeoCirclePrivate::updateBoundingBox() -{ - if (isEmpty()) { - if (m_center.isValid()) { - m_bbox.setTopLeft(m_center); - m_bbox.setBottomRight(m_center); - } - return; - } - - bool crossNorth = crossNorthPole(); - bool crossSouth = crossSouthPole(); - - if (crossNorth && crossSouth) { - // Circle crossing both poles fills the whole map - m_bbox = QGeoRectangle(QGeoCoordinate(90.0, -180.0), QGeoCoordinate(-90.0, 180.0)); - } else if (crossNorth) { - // Circle crossing one pole fills the map in the longitudinal direction - m_bbox = QGeoRectangle(QGeoCoordinate(90.0, -180.0), QGeoCoordinate(m_center.atDistanceAndAzimuth(m_radius, 180.0).latitude(), 180.0)); - } else if (crossSouth) { - m_bbox = QGeoRectangle(QGeoCoordinate(m_center.atDistanceAndAzimuth(m_radius, 0.0).latitude(), -180.0), QGeoCoordinate(-90, 180.0)); - } else { - // Regular circle not crossing anything - - // Calculate geo bounding box of the circle - // - // A circle tangential point with a meridian, together with pole and - // the circle center create a spherical triangle. - // Finding the tangential point with the spherical law of sines: - // - // * lon_delta_in_rad : delta between the circle center and a tangential - // point (absolute value). - // * r_in_rad : angular radius of the circle - // * lat_in_rad : latitude of the circle center - // * alpha_in_rad : angle between meridian and radius of the circle. - // At the tangential point, sin(alpha_in_rad) == 1. - // * lat_delta_in_rad - absolute delta of latitudes between the circle center and - // any of the two points where the great circle going through the circle - // center and the pole crosses the circle. In other words, the points - // on the circle with azimuth 0 or 180. - // - // Using: - // sin(lon_delta_in_rad)/sin(r_in_rad) = sin(alpha_in_rad)/sin(pi/2 - lat_in_rad) - - double r_in_rad = m_radius / QLocationUtils::earthMeanRadius(); // angular r - double lat_delta_in_deg = QLocationUtils::degrees(r_in_rad); - double lon_delta_in_deg = QLocationUtils::degrees(std::asin( - std::sin(r_in_rad) / - std::cos(QLocationUtils::radians(m_center.latitude())) - )); - - QGeoCoordinate topLeft; - topLeft.setLatitude(QLocationUtils::clipLat(m_center.latitude() + lat_delta_in_deg)); - topLeft.setLongitude(QLocationUtils::wrapLong(m_center.longitude() - lon_delta_in_deg)); - QGeoCoordinate bottomRight; - bottomRight.setLatitude(QLocationUtils::clipLat(m_center.latitude() - lat_delta_in_deg)); - bottomRight.setLongitude(QLocationUtils::wrapLong(m_center.longitude() + lon_delta_in_deg)); - - m_bbox = QGeoRectangle(topLeft, bottomRight); - } -} - -void QGeoCirclePrivate::setCenter(const QGeoCoordinate &c) -{ - m_center = c; - updateBoundingBox(); -} - -void QGeoCirclePrivate::setRadius(const qreal r) -{ - m_radius = r; - updateBoundingBox(); -} - -bool QGeoCirclePrivate::crossNorthPole() const -{ - const QGeoCoordinate northPole(90.0, m_center.longitude()); - qreal distanceToPole = m_center.distanceTo(northPole); - if (distanceToPole < m_radius) - return true; - return false; -} - -bool QGeoCirclePrivate::crossSouthPole() const -{ - const QGeoCoordinate southPole(-90.0, m_center.longitude()); - qreal distanceToPole = m_center.distanceTo(southPole); - if (distanceToPole < m_radius) - return true; - return false; -} - -/* - Extends the circle to include \a coordinate. -*/ -void QGeoCirclePrivate::extendCircle(const QGeoCoordinate &coordinate) -{ - if (!isValid() || !coordinate.isValid() || contains(coordinate)) - return; - - setRadius(m_center.distanceTo(coordinate)); -} - -/*! - Translates this geo circle by \a degreesLatitude northwards and \a degreesLongitude eastwards. - - Negative values of \a degreesLatitude and \a degreesLongitude correspond to - southward and westward translation respectively. -*/ -void QGeoCircle::translate(double degreesLatitude, double degreesLongitude) -{ - // TODO handle dlat, dlon larger than 360 degrees - - Q_D(QGeoCircle); - - double lat = d->m_center.latitude(); - double lon = d->m_center.longitude(); - - lat += degreesLatitude; - lon += degreesLongitude; - lon = QLocationUtils::wrapLong(lon); - - // TODO: remove this and simply clip latitude. - if (lat > 90.0) { - lat = 180.0 - lat; - if (lon < 0.0) - lon = 180.0; - else - lon -= 180; - } - - if (lat < -90.0) { - lat = 180.0 + lat; - if (lon < 0.0) - lon = 180.0; - else - lon -= 180; - } - - d->setCenter(QGeoCoordinate(lat, lon)); -} - -/*! - Returns a copy of this geo circle translated by \a degreesLatitude northwards and - \a degreesLongitude eastwards. - - Negative values of \a degreesLatitude and \a degreesLongitude correspond to - southward and westward translation respectively. - - \sa translate() -*/ -QGeoCircle QGeoCircle::translated(double degreesLatitude, double degreesLongitude) const -{ - QGeoCircle result(*this); - result.translate(degreesLatitude, degreesLongitude); - return result; -} - -/*! - Extends the geo circle to also cover the coordinate \a coordinate - - \since 5.9 -*/ -void QGeoCircle::extendCircle(const QGeoCoordinate &coordinate) -{ - Q_D(QGeoCircle); - d->extendCircle(coordinate); -} - -/*! - Returns the geo circle properties as a string. - - \since 5.5 -*/ - -QString QGeoCircle::toString() const -{ - if (type() != QGeoShape::CircleType) { - qWarning("Not a circle"); - return QStringLiteral("QGeoCircle(not a circle)"); - } - - return QStringLiteral("QGeoCircle({%1, %2}, %3)") - .arg(center().latitude()) - .arg(center().longitude()) - .arg(radius()); -} - -/******************************************************************************* -*******************************************************************************/ - -QGeoCirclePrivate::QGeoCirclePrivate() -: QGeoShapePrivate(QGeoShape::CircleType), m_radius(-1.0) -{ -} - -QGeoCirclePrivate::QGeoCirclePrivate(const QGeoCoordinate ¢er, qreal radius) -: QGeoShapePrivate(QGeoShape::CircleType), m_center(center), m_radius(radius) -{ - updateBoundingBox(); -} - -QGeoCirclePrivate::QGeoCirclePrivate(const QGeoCirclePrivate &other) -: QGeoShapePrivate(QGeoShape::CircleType), m_center(other.m_center), - m_radius(other.m_radius), m_bbox(other.m_bbox) -{ -} - -QGeoCirclePrivate::~QGeoCirclePrivate() {} - -QGeoShapePrivate *QGeoCirclePrivate::clone() const -{ - return new QGeoCirclePrivate(*this); -} - -bool QGeoCirclePrivate::operator==(const QGeoShapePrivate &other) const -{ - if (!QGeoShapePrivate::operator==(other)) - return false; - - const QGeoCirclePrivate &otherCircle = static_cast<const QGeoCirclePrivate &>(other); - - return m_radius == otherCircle.m_radius && m_center == otherCircle.m_center; -} - -size_t QGeoCirclePrivate::hash(size_t seed) const -{ - return qHashMulti(seed, m_center, m_radius); -} - -QT_END_NAMESPACE |