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// SPDX-License-Identifier: LGPL-2.1-or-later
//
// SPDX-FileCopyrightText: 2011 Bernhard Beschow <bbeschow@cs.tu-berlin.de>
//
#include "MercatorProjection.h"
#include "TestUtils.h"
#include "ViewportParams.h"
namespace Marble
{
class MercatorProjectionTest : public QObject
{
Q_OBJECT
private Q_SLOTS:
void screenCoordinatesValidLat_data();
void screenCoordinatesValidLat();
void screenCoordinatesOfCenter_data();
void screenCoordinatesOfCenter();
void setInvalidRadius();
};
void MercatorProjectionTest::screenCoordinatesValidLat_data()
{
ViewportParams mercator;
mercator.setProjection(Mercator);
QTest::addColumn<qreal>("lon");
QTest::addColumn<qreal>("lat");
QTest::addColumn<bool>("validLat");
addRow() << qreal(0.0) << qreal(0.0) << true;
addRow() << qreal(-180.0) << qreal(0.0) << true;
addRow() << qreal(180.0) << qreal(0.0) << true;
addRow() << qreal(0.0) << mercator.currentProjection()->minValidLat() * RAD2DEG << true;
addRow() << qreal(0.0) << mercator.currentProjection()->maxValidLat() * RAD2DEG << true;
addRow() << qreal(0.0) << mercator.currentProjection()->minValidLat() * RAD2DEG - qreal(0.0001) << false;
addRow() << qreal(0.0) << mercator.currentProjection()->maxValidLat() * RAD2DEG + qreal(0.0001) << false;
addRow() << qreal(-180.0) << mercator.currentProjection()->minValidLat() * RAD2DEG << true;
addRow() << qreal(180.0) << mercator.currentProjection()->minValidLat() * RAD2DEG << true;
addRow() << qreal(-180.0) << mercator.currentProjection()->maxValidLat() * RAD2DEG << true;
addRow() << qreal(180.0) << mercator.currentProjection()->maxValidLat() * RAD2DEG << true;
addRow() << qreal(-180.0) << mercator.currentProjection()->minValidLat() * RAD2DEG - qreal(0.0001) << false;
addRow() << qreal(180.0) << mercator.currentProjection()->minValidLat() * RAD2DEG - qreal(0.0001) << false;
addRow() << qreal(-180.0) << mercator.currentProjection()->maxValidLat() * RAD2DEG + qreal(0.0001) << false;
addRow() << qreal(180.0) << mercator.currentProjection()->maxValidLat() * RAD2DEG + qreal(0.0001) << false;
}
void MercatorProjectionTest::screenCoordinatesValidLat()
{
QFETCH(qreal, lon);
QFETCH(qreal, lat);
QFETCH(bool, validLat);
const GeoDataCoordinates coordinates(lon, lat, 0, GeoDataCoordinates::Degree);
ViewportParams viewport;
viewport.setProjection(Mercator);
viewport.setRadius(360 / 4); // for easy mapping of lon <-> x
viewport.centerOn(0.0, 0.0);
viewport.setSize(QSize(360, 361)); // TODO: check why height == 360 doesn't hold
{
qreal x;
qreal y;
const bool retval = viewport.screenCoordinates(lon * DEG2RAD, lat * DEG2RAD, x, y);
QVERIFY(retval == validLat);
}
{
qreal x;
qreal y;
bool globeHidesPoint = true;
const bool retval = viewport.screenCoordinates(coordinates, x, y, globeHidesPoint);
QVERIFY(retval == validLat);
QVERIFY(!globeHidesPoint);
}
QVERIFY(viewport.currentProjection()->repeatableX());
{
qreal x[2];
qreal y;
int pointRepeatNum = 1000;
bool globeHidesPoint = true;
const bool retval = viewport.screenCoordinates(coordinates, x, y, pointRepeatNum, QSizeF(0, 0), globeHidesPoint);
QVERIFY(retval == validLat);
QCOMPARE(pointRepeatNum, 1);
QVERIFY(!globeHidesPoint);
}
}
void MercatorProjectionTest::screenCoordinatesOfCenter_data()
{
ViewportParams mercator;
mercator.setProjection(Mercator);
QTest::addColumn<qreal>("lon");
QTest::addColumn<qreal>("lat");
addRow() << qreal(0.0) << qreal(0.0);
addRow() << qreal(-180.0) << qreal(0.0);
addRow() << qreal(180.0) << qreal(0.0);
addRow() << qreal(-360.0) << qreal(0.0);
addRow() << qreal(360.0) << qreal(0.0);
addRow() << qreal(-540.0) << qreal(0.0);
addRow() << qreal(540.0) << qreal(0.0);
addRow() << qreal(0.0) << mercator.currentProjection()->minValidLat() * RAD2DEG;
addRow() << qreal(0.0) << mercator.currentProjection()->maxValidLat() * RAD2DEG;
addRow() << qreal(-180.0) << mercator.currentProjection()->minValidLat() * RAD2DEG;
addRow() << qreal(-180.0) << mercator.currentProjection()->maxValidLat() * RAD2DEG;
addRow() << qreal(180.0) << mercator.currentProjection()->minValidLat() * RAD2DEG;
addRow() << qreal(180.0) << mercator.currentProjection()->maxValidLat() * RAD2DEG;
// FIXME: the following tests should succeed
#if 0
addRow() << qreal(-541.0) << qreal(0.0);
addRow() << qreal(541.0) << qreal(0.0);
addRow() << qreal(-1000000.0) << qreal(0.0);
addRow() << qreal(1000000.0) << qreal(0.0);
#endif
}
void MercatorProjectionTest::screenCoordinatesOfCenter()
{
QFETCH(qreal, lon);
QFETCH(qreal, lat);
const GeoDataCoordinates coordinates(lon, lat, 0, GeoDataCoordinates::Degree);
ViewportParams viewport;
viewport.setProjection(Mercator);
viewport.setRadius(360 / 4); // for easy mapping of lon <-> x
viewport.setSize(QSize(2, 2));
viewport.centerOn(lon * DEG2RAD, lat * DEG2RAD);
{
qreal x;
qreal y;
const bool retval = viewport.screenCoordinates(lon * DEG2RAD, lat * DEG2RAD, x, y);
QVERIFY(retval); // FIXME: this should fail for lon < -180 || 180 < lon
QCOMPARE(x, lon - viewport.centerLongitude() * RAD2DEG + 1.0);
QCOMPARE(y, 1.0);
}
{
qreal x;
qreal y;
bool globeHidesPoint = true;
const bool retval = viewport.screenCoordinates(coordinates, x, y, globeHidesPoint);
QVERIFY(retval); // FIXME: this should fail for lon < -180 || 180 < lon
QVERIFY(!globeHidesPoint);
QCOMPARE(x, lon - viewport.centerLongitude() * RAD2DEG + 1.0);
QCOMPARE(y, 1.0);
}
QVERIFY(viewport.currentProjection()->repeatableX());
{
qreal x[2];
qreal y;
int pointRepeatNum = 1000;
bool globeHidesPoint = true;
const bool retval = viewport.screenCoordinates(coordinates, x, y, pointRepeatNum, QSizeF(0, 0), globeHidesPoint);
QVERIFY(retval);
QCOMPARE(pointRepeatNum, 1);
QVERIFY(!globeHidesPoint);
QCOMPARE(x[0], 1.0);
QCOMPARE(y, 1.0);
}
}
void MercatorProjectionTest::setInvalidRadius()
{
ViewportParams viewport;
viewport.setProjection(Mercator);
viewport.setRadius(0);
qreal lon, lat;
viewport.geoCoordinates(23, 42, lon, lat);
}
}
QTEST_MAIN(Marble::MercatorProjectionTest)
#include "MercatorProjectionTest.moc"
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