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Diffstat (limited to 'src/positioning/qgeopath.cpp')
| -rw-r--r-- | src/positioning/qgeopath.cpp | 774 |
1 files changed, 0 insertions, 774 deletions
diff --git a/src/positioning/qgeopath.cpp b/src/positioning/qgeopath.cpp deleted file mode 100644 index 4d6b1af2..00000000 --- a/src/positioning/qgeopath.cpp +++ /dev/null @@ -1,774 +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 "qgeopath.h" -#include "qgeopolygon.h" -#include "qgeopath_p.h" - -#include "qgeocoordinate.h" -#include "qnumeric.h" -#include "qlocationutils_p.h" -#include "qwebmercator_p.h" - -#include "qdoublevector2d_p.h" -#include "qdoublevector3d_p.h" -QT_BEGIN_NAMESPACE - -constexpr int kMaxInt = std::numeric_limits<int>::max(); -constexpr auto kWarningString = u"The path has more elements than fit into an int. " - "This can cause errors while querying elements from QML"; - -/*! - \class QGeoPath - \inmodule QtPositioning - \ingroup QtPositioning-positioning - \since 5.9 - - \brief The QGeoPath class defines a geographic path. - - The path is defined by an ordered list of \l QGeoCoordinate objects. - - Each two adjacent elements in the path are intended to be connected - together by the shortest line segment of constant bearing passing - through both elements. - This type of connection can cross the dateline in the longitudinal direction, - but never crosses the poles. - - This is relevant for the calculation of the bounding box returned by - \l QGeoShape::boundingGeoRectangle() for this shape, which will have the latitude of - the top left corner set to the maximum latitude in the path point set. - Similarly, the latitude of the bottom right corner will be the minimum latitude - in the path point set. - - This class is a \l Q_GADGET. - It can be \l{Cpp_value_integration_positioning}{directly used from C++ and QML}. - - A QGeoPath is both invalid and empty if it contains no coordinate. - - \note A default constructed QGeoPath is both invalid and empty as it does not contain any coordinates. -*/ - -/*! - \property QGeoPath::path - \brief This property holds the list of coordinates for the geo path. - - \note The coordinates cannot be processed in place. To change the value - of this property, retrieve the complete list of coordinates, process them, - and assign the new value to the property. -*/ - -inline QGeoPathPrivate *QGeoPath::d_func() -{ - return static_cast<QGeoPathPrivate *>(d_ptr.data()); -} - -inline const QGeoPathPrivate *QGeoPath::d_func() const -{ - return static_cast<const QGeoPathPrivate *>(d_ptr.constData()); -} - -struct PathVariantConversions -{ - PathVariantConversions() - { - QMetaType::registerConverter<QGeoShape, QGeoPath>(); - QMetaType::registerConverter<QGeoPath, QGeoShape>(); - } -}; - -Q_GLOBAL_STATIC(PathVariantConversions, initPathConversions) - -/*! - Constructs a new, empty geo path. -*/ -QGeoPath::QGeoPath() -: QGeoShape(new QGeoPathPrivate()) -{ - initPathConversions(); -} - -/*! - Constructs a new geo path from a list of coordinates - (\a path and \a width). -*/ -QGeoPath::QGeoPath(const QList<QGeoCoordinate> &path, const qreal &width) -: QGeoShape(new QGeoPathPrivate(path, width)) -{ - initPathConversions(); -} - -/*! - Constructs a new geo path from the contents of \a other. -*/ -QGeoPath::QGeoPath(const QGeoPath &other) -: QGeoShape(other) -{ - initPathConversions(); -} - -/*! - Constructs a new geo path from the contents of \a other. -*/ -QGeoPath::QGeoPath(const QGeoShape &other) -: QGeoShape(other) -{ - initPathConversions(); - if (type() != QGeoShape::PathType) - d_ptr = new QGeoPathPrivate(); -} - -/*! - Destroys this path. -*/ -QGeoPath::~QGeoPath() {} - -/*! - Assigns \a other to this geo path and returns a reference to this geo path. -*/ -QGeoPath &QGeoPath::operator=(const QGeoPath &other) -{ - QGeoShape::operator=(other); - return *this; -} - -/*! - Sets all the elements of the \a path. -*/ -void QGeoPath::setPath(const QList<QGeoCoordinate> &path) -{ - Q_D(QGeoPath); - return d->setPath(path); -} - -/*! - Returns all the elements of the path. -*/ -const QList<QGeoCoordinate> &QGeoPath::path() const -{ - Q_D(const QGeoPath); - return d->path(); -} - -/*! - Clears the path. - - \since 5.12 -*/ -void QGeoPath::clearPath() -{ - Q_D(QGeoPath); - d->clearPath(); -} - -/*! - Sets all the elements of the path. - - \internal -*/ -void QGeoPath::setVariantPath(const QVariantList &path) -{ - Q_D(QGeoPath); - QList<QGeoCoordinate> p; - for (const auto &c: path) { - if (c.canConvert<QGeoCoordinate>()) - p << c.value<QGeoCoordinate>(); - } - d->setPath(p); -} -/*! - Returns all the elements of the path. - - \internal -*/ -QVariantList QGeoPath::variantPath() const -{ - Q_D(const QGeoPath); - QVariantList p; - for (const auto &c: d->path()) - p << QVariant::fromValue(c); - return p; -} - - -/*! - \property QGeoPath::width - - \brief the width of the path in meters. -*/ -void QGeoPath::setWidth(const qreal &width) -{ - Q_D(QGeoPath); - d->setWidth(width); -} - -/*! - Returns the width of the path, in meters. This information is used in the \l contains method. - The default value is 0. -*/ -qreal QGeoPath::width() const -{ - Q_D(const QGeoPath); - return d->width(); -} - -/*! - Translates this geo path by \a degreesLatitude northwards and \a degreesLongitude eastwards. - - Negative values of \a degreesLatitude and \a degreesLongitude correspond to - southward and westward translation respectively. -*/ -void QGeoPath::translate(double degreesLatitude, double degreesLongitude) -{ - Q_D(QGeoPath); - d->translate(degreesLatitude, degreesLongitude); -} - -/*! - Returns a copy of this geo path 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() -*/ -QGeoPath QGeoPath::translated(double degreesLatitude, double degreesLongitude) const -{ - QGeoPath result(*this); - result.translate(degreesLatitude, degreesLongitude); - return result; -} - -/*! - Returns the length of the path, in meters, from the element \a indexFrom to the element \a indexTo. - The length is intended to be the sum of the shortest distances for each pair of adjacent points. - - If \a indexTo is -1 (the default value), the length will be including the distance between last coordinate - and the first (closed loop). - To retrieve the length for the path, use 0 for \a indexFrom and \l QGeoPath::size() - 1 for \a indexTo. -*/ -double QGeoPath::length(qsizetype indexFrom, qsizetype indexTo) const -{ - Q_D(const QGeoPath); - return d->length(indexFrom, indexTo); -} - -/*! - Returns the number of elements in the path. - - \since 5.10 -*/ -qsizetype QGeoPath::size() const -{ - Q_D(const QGeoPath); - const qsizetype result = d->size(); - if (result > kMaxInt) - qWarning() << kWarningString; - return result; -} - -/*! - Appends \a coordinate to the path. -*/ -void QGeoPath::addCoordinate(const QGeoCoordinate &coordinate) -{ - Q_D(QGeoPath); - d->addCoordinate(coordinate); - if (d->size() > kMaxInt) - qWarning() << kWarningString; -} - -/*! - Inserts \a coordinate at the specified \a index. -*/ -void QGeoPath::insertCoordinate(qsizetype index, const QGeoCoordinate &coordinate) -{ - Q_D(QGeoPath); - d->insertCoordinate(index, coordinate); -} - -/*! - Replaces the path element at the specified \a index with \a coordinate. -*/ -void QGeoPath::replaceCoordinate(qsizetype index, const QGeoCoordinate &coordinate) -{ - Q_D(QGeoPath); - d->replaceCoordinate(index, coordinate); -} - -/*! - Returns the coordinate at \a index . -*/ -QGeoCoordinate QGeoPath::coordinateAt(qsizetype index) const -{ - Q_D(const QGeoPath); - return d->coordinateAt(index); -} - -/*! - Returns true if the path contains \a coordinate as one of the elements. -*/ -bool QGeoPath::containsCoordinate(const QGeoCoordinate &coordinate) const -{ - Q_D(const QGeoPath); - return d->containsCoordinate(coordinate); -} - -/*! - Removes the last occurrence of \a coordinate from the path. -*/ -void QGeoPath::removeCoordinate(const QGeoCoordinate &coordinate) -{ - Q_D(QGeoPath); - d->removeCoordinate(coordinate); -} - -/*! - Removes element at position \a index from the path. -*/ -void QGeoPath::removeCoordinate(qsizetype index) -{ - Q_D(QGeoPath); - d->removeCoordinate(index); -} - -/*! - Returns the geo path properties as a string. -*/ -QString QGeoPath::toString() const -{ - if (type() != QGeoShape::PathType) { - qWarning("Not a path"); - return QStringLiteral("QGeoPath(not a path)"); - } - - QString pathString; - for (const auto &p : path()) - pathString += p.toString() + QLatin1Char(','); - - return QStringLiteral("QGeoPath([ %1 ])").arg(pathString); -} - -/******************************************************************************* - * - * QGeoPathPrivate & friends - * -*******************************************************************************/ - -QGeoPathPrivate::QGeoPathPrivate() -: QGeoShapePrivate(QGeoShape::PathType) -{ - -} - -QGeoPathPrivate::QGeoPathPrivate(const QList<QGeoCoordinate> &path, const qreal width) -: QGeoShapePrivate(QGeoShape::PathType) -{ - setPath(path); - setWidth(width); -} - -QGeoPathPrivate::~QGeoPathPrivate() -{ - -} - -QGeoShapePrivate *QGeoPathPrivate::clone() const -{ - return new QGeoPathPrivate(*this); -} - -bool QGeoPathPrivate::isValid() const -{ - return !isEmpty(); -} - -bool QGeoPathPrivate::isEmpty() const -{ - return path().isEmpty(); // this should perhaps return geometric emptiness, less than 2 points for line, or empty polygon for polygons -} - -QGeoCoordinate QGeoPathPrivate::center() const -{ - return boundingGeoRectangle().center(); -} - -bool QGeoPathPrivate::operator==(const QGeoShapePrivate &other) const -{ - if (!QGeoShapePrivate::operator==(other)) - return false; - - const QGeoPathPrivate &otherPath = static_cast<const QGeoPathPrivate &>(other); - if (m_path.size() != otherPath.m_path.size()) - return false; - return m_width == otherPath.m_width && m_path == otherPath.m_path; -} - -const QList<QGeoCoordinate> &QGeoPathPrivate::path() const -{ - return m_path; -} - -bool QGeoPathPrivate::lineContains(const QGeoCoordinate &coordinate) const -{ - // Unoptimized approach: - // - consider each segment of the path - // - project it into mercator space (rhumb lines are straight in mercator space) - // - find closest point to coordinate - // - unproject the closest point - // - calculate coordinate to closest point distance with distanceTo() - // - if not within lineRadius, advance - // - // To keep wrapping into the equation: - // If the mercator x value of a coordinate of the line, or the coordinate parameter, is less - // than mercator(m_bbox).x, add that to the conversion. - - if (m_bboxDirty) - const_cast<QGeoPathPrivate &>(*this).computeBoundingBox(); - - double lineRadius = qMax(width() * 0.5, 0.2); // minimum radius: 20cm - - if (!m_path.size()) - return false; - else if (m_path.size() == 1) - return (m_path[0].distanceTo(coordinate) <= lineRadius); - - QDoubleVector2D p = QWebMercator::coordToMercator(coordinate); - if (p.x() < m_leftBoundWrapped) - p.setX(p.x() + m_leftBoundWrapped); // unwrap X - - QDoubleVector2D a; - QDoubleVector2D b; - if (m_path.size()) { - a = QWebMercator::coordToMercator(m_path[0]); - if (a.x() < m_leftBoundWrapped) - a.setX(a.x() + m_leftBoundWrapped); // unwrap X - } - for (qsizetype i = 1; i < m_path.size(); i++) { - b = QWebMercator::coordToMercator(m_path[i]); - if (b.x() < m_leftBoundWrapped) - b.setX(b.x() + m_leftBoundWrapped); // unwrap X - if (b == a) - continue; - - double u = ((p.x() - a.x()) * (b.x() - a.x()) + (p.y() - a.y()) * (b.y() - a.y()) ) / (b - a).lengthSquared(); - QDoubleVector2D intersection(a.x() + u * (b.x() - a.x()) , a.y() + u * (b.y() - a.y()) ); - - QDoubleVector2D candidate = ( (p-a).length() < (p-b).length() ) ? a : b; - - if (u > 0 && u < 1 - && (p-intersection).length() < (p-candidate).length() ) // And it falls in the segment - candidate = intersection; - - - if (candidate.x() > 1.0) - candidate.setX(candidate.x() - m_leftBoundWrapped); // wrap X - - QGeoCoordinate closest = QWebMercator::mercatorToCoord(candidate); - - double distanceMeters = coordinate.distanceTo(closest); - if (distanceMeters <= lineRadius) - return true; - - // swap - a = b; - } - - // Last check if the coordinate is on the left of leftBoundMercator, but close enough to - // m_path[0] - return (m_path[0].distanceTo(coordinate) <= lineRadius); -} - -bool QGeoPathPrivate::contains(const QGeoCoordinate &coordinate) const -{ - return lineContains(coordinate); -} - -qreal QGeoPathPrivate::width() const -{ - return m_width; -} - -void QGeoPathPrivate::setWidth(const qreal &width) -{ - if (qIsNaN(width) || width < 0.0) - return; - m_width = width; -} - -double QGeoPathPrivate::length(qsizetype indexFrom, qsizetype indexTo) const -{ - if (path().isEmpty()) - return 0.0; - - bool wrap = indexTo == -1; - if (indexTo < 0 || indexTo >= path().size()) - indexTo = path().size() - 1; - double len = 0.0; - // TODO: consider calculating the length of the actual rhumb line segments - // instead of the shortest path from A to B. - for (qsizetype i = indexFrom; i < indexTo; i++) - len += m_path[i].distanceTo(m_path[i+1]); - if (wrap) - len += m_path.last().distanceTo(m_path.first()); - return len; -} - -qsizetype QGeoPathPrivate::size() const -{ - return m_path.size(); -} - -QGeoCoordinate QGeoPathPrivate::coordinateAt(qsizetype index) const -{ - if (index < 0 || index >= m_path.size()) - return QGeoCoordinate(); - - return m_path.at(index); -} - -bool QGeoPathPrivate::containsCoordinate(const QGeoCoordinate &coordinate) const -{ - return m_path.indexOf(coordinate) > -1; -} - -void QGeoPathPrivate::translate(double degreesLatitude, double degreesLongitude) -{ - // Need min/maxLati, so update bbox - QList<double> m_deltaXs; - double m_minX, m_maxX, m_minLati, m_maxLati; - m_bboxDirty = false; - computeBBox(m_path, m_deltaXs, m_minX, m_maxX, m_minLati, m_maxLati, m_bbox); - - if (degreesLatitude > 0.0) - degreesLatitude = qMin(degreesLatitude, 90.0 - m_maxLati); - else - degreesLatitude = qMax(degreesLatitude, -90.0 - m_minLati); - for (QGeoCoordinate &p: m_path) { - p.setLatitude(p.latitude() + degreesLatitude); - p.setLongitude(QLocationUtils::wrapLong(p.longitude() + degreesLongitude)); - } - m_bbox.translate(degreesLatitude, degreesLongitude); - m_leftBoundWrapped = QWebMercator::coordToMercator(m_bbox.topLeft()).x(); -} - -QGeoRectangle QGeoPathPrivate::boundingGeoRectangle() const -{ - if (m_bboxDirty) - const_cast<QGeoPathPrivate &>(*this).computeBoundingBox(); - return m_bbox; -} - -size_t QGeoPathPrivate::hash(size_t seed) const -{ - const size_t res = qHashRange(m_path.cbegin(), m_path.cend(), seed); - return qHashMulti(seed, res, m_width); -} - -void QGeoPathPrivate::setPath(const QList<QGeoCoordinate> &path) -{ - for (const QGeoCoordinate &c: path) - if (!c.isValid()) - return; - m_path = path; - markDirty(); -} - -void QGeoPathPrivate::clearPath() -{ - m_path.clear(); - markDirty(); -} - -void QGeoPathPrivate::addCoordinate(const QGeoCoordinate &coordinate) -{ - if (!coordinate.isValid()) - return; - m_path.append(coordinate); - markDirty(); -} - -void QGeoPathPrivate::insertCoordinate(qsizetype index, const QGeoCoordinate &coordinate) -{ - if (index < 0 || index > m_path.size() || !coordinate.isValid()) - return; - m_path.insert(index, coordinate); - markDirty(); -} - -void QGeoPathPrivate::replaceCoordinate(qsizetype index, const QGeoCoordinate &coordinate) -{ - if (index < 0 || index >= m_path.size() || !coordinate.isValid()) - return; - m_path[index] = coordinate; - markDirty(); -} - -void QGeoPathPrivate::removeCoordinate(const QGeoCoordinate &coordinate) -{ - qsizetype index = m_path.lastIndexOf(coordinate); - removeCoordinate(index); -} - -void QGeoPathPrivate::removeCoordinate(qsizetype index) -{ - if (index < 0 || index >= m_path.size()) - return; - m_path.removeAt(index); - markDirty(); -} - -void QGeoPathPrivate::markDirty() -{ - m_bboxDirty = true; -} - -void QGeoPathPrivate::computeBoundingBox() -{ - QList<double> m_deltaXs; - double m_minX, m_maxX, m_minLati, m_maxLati; - m_bboxDirty = false; - computeBBox(m_path, m_deltaXs, m_minX, m_maxX, m_minLati, m_maxLati, m_bbox); - m_leftBoundWrapped = QWebMercator::coordToMercator(m_bbox.topLeft()).x(); -} - -QGeoPathPrivateEager::QGeoPathPrivateEager() -: QGeoPathPrivate() -{ - m_bboxDirty = false; // never dirty on the eager version -} - -QGeoPathPrivateEager::QGeoPathPrivateEager(const QList<QGeoCoordinate> &path, const qreal width) -: QGeoPathPrivate(path, width) -{ - m_bboxDirty = false; // never dirty on the eager version -} - -QGeoPathPrivateEager::~QGeoPathPrivateEager() -{ - -} - -QGeoShapePrivate *QGeoPathPrivateEager::clone() const -{ - return new QGeoPathPrivateEager(*this); -} - -void QGeoPathPrivateEager::markDirty() -{ - computeBoundingBox(); -} - -void QGeoPathPrivateEager::translate(double degreesLatitude, double degreesLongitude) -{ - if (degreesLatitude > 0.0) - degreesLatitude = qMin(degreesLatitude, 90.0 - m_maxLati); - else - degreesLatitude = qMax(degreesLatitude, -90.0 - m_minLati); - for (QGeoCoordinate &p: m_path) { - p.setLatitude(p.latitude() + degreesLatitude); - p.setLongitude(QLocationUtils::wrapLong(p.longitude() + degreesLongitude)); - } - m_bbox.translate(degreesLatitude, degreesLongitude); - m_minLati += degreesLatitude; - m_maxLati += degreesLatitude; - m_leftBoundWrapped = QWebMercator::coordToMercator(m_bbox.topLeft()).x(); -} - -void QGeoPathPrivateEager::addCoordinate(const QGeoCoordinate &coordinate) -{ - if (!coordinate.isValid()) - return; - m_path.append(coordinate); - //m_clipperDirty = true; // clipper not used in polylines - updateBoundingBox(); -} - -void QGeoPathPrivateEager::QGeoPathPrivateEager::computeBoundingBox() -{ - computeBBox(m_path, m_deltaXs, m_minX, m_maxX, m_minLati, m_maxLati, m_bbox); - m_leftBoundWrapped = QWebMercator::coordToMercator(m_bbox.topLeft()).x(); -} - -void QGeoPathPrivateEager::QGeoPathPrivateEager::updateBoundingBox() -{ - updateBBox(m_path, m_deltaXs, m_minX, m_maxX, m_minLati, m_maxLati, m_bbox); - m_leftBoundWrapped = QWebMercator::coordToMercator(m_bbox.topLeft()).x(); -} - -QGeoPathEager::QGeoPathEager() : QGeoPath() -{ - initPathConversions(); - d_ptr = new QGeoPathPrivateEager; -} - -QGeoPathEager::QGeoPathEager(const QList<QGeoCoordinate> &path, const qreal &width) : QGeoPath() -{ - initPathConversions(); - d_ptr = new QGeoPathPrivateEager(path, width); -} - -QGeoPathEager::QGeoPathEager(const QGeoPath &other) : QGeoPath() -{ - initPathConversions(); - d_ptr = new QGeoPathPrivateEager; - setPath(other.path()); - setWidth(other.width()); -} - -QGeoPathEager::QGeoPathEager(const QGeoShape &other) : QGeoPath() -{ - initPathConversions(); - if (other.type() == QGeoShape::PathType) - *this = QGeoPathEager(QGeoPath(other)); - else - d_ptr = new QGeoPathPrivateEager; -} - -QGeoPathEager::~QGeoPathEager() {} - -QT_END_NAMESPACE - - - - - - - - |