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Diffstat (limited to 'src/positioning/qwebmercator.cpp')
-rw-r--r-- | src/positioning/qwebmercator.cpp | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/src/positioning/qwebmercator.cpp b/src/positioning/qwebmercator.cpp deleted file mode 100644 index 55b2e600..00000000 --- a/src/positioning/qwebmercator.cpp +++ /dev/null @@ -1,136 +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 "qwebmercator_p.h" - -#include "qgeocoordinate.h" - -#include <qnumeric.h> -#include <qmath.h> - -#include "qdoublevector2d_p.h" -#include "qdoublevector3d_p.h" - -QT_BEGIN_NAMESPACE - -QDoubleVector2D QWebMercator::coordToMercator(const QGeoCoordinate &coord) -{ - const double pi = M_PI; - - double lon = coord.longitude() / 360.0 + 0.5; - - double lat = coord.latitude(); - lat = 0.5 - (std::log(std::tan((pi / 4.0) + (pi / 2.0) * lat / 180.0)) / pi) / 2.0; - lat = qBound(0.0, lat, 1.0); - - return QDoubleVector2D(lon, lat); -} - -double QWebMercator::realmod(const double a, const double b) -{ - quint64 div = static_cast<quint64>(a / b); - return a - static_cast<double>(div) * b; -} - -QGeoCoordinate QWebMercator::mercatorToCoord(const QDoubleVector2D &mercator) -{ - const double pi = M_PI; - - double fx = mercator.x(); - double fy = mercator.y(); - - if (fy < 0.0) - fy = 0.0; - else if (fy > 1.0) - fy = 1.0; - - double lat; - - if (fy == 0.0) - lat = 90.0; - else if (fy == 1.0) - lat = -90.0; - else - lat = (180.0 / pi) * (2.0 * std::atan(std::exp(pi * (1.0 - 2.0 * fy))) - (pi / 2.0)); - - double lng; - if (fx >= 0) { - lng = realmod(fx, 1.0); - } else { - lng = realmod(1.0 - realmod(-1.0 * fx, 1.0), 1.0); - } - - lng = lng * 360.0 - 180.0; - - return QGeoCoordinate(lat, lng, 0.0); -} - -QGeoCoordinate QWebMercator::coordinateInterpolation(const QGeoCoordinate &from, const QGeoCoordinate &to, qreal progress) -{ - QDoubleVector2D s = QWebMercator::coordToMercator(from); - QDoubleVector2D e = QWebMercator::coordToMercator(to); - - double x; - - if (0.5 < qAbs(e.x() - s.x())) { - // handle dateline crossing - double ex = e.x(); - double sx = s.x(); - if (ex < sx) - sx -= 1.0; - else if (sx < ex) - ex -= 1.0; - - x = (1.0 - progress) * sx + progress * ex; - - if (!qFuzzyIsNull(x) && (x < 0.0)) - x += 1.0; - - } else { - x = (1.0 - progress) * s.x() + progress * e.x(); - } - - double y = (1.0 - progress) * s.y() + progress * e.y(); - - QGeoCoordinate result = QWebMercator::mercatorToCoord(QDoubleVector2D(x, y)); - result.setAltitude((1.0 - progress) * from.altitude() + progress * to.altitude()); - - return result; -} - -QT_END_NAMESPACE |