void MercatorProjectionTest::setInvalidRadius()
{
ViewportParams viewport;
viewport.setProjection( Mercator );
viewport.setRadius( 0 );
qreal lon, lat;
viewport.geoCoordinates( 23, 42, lon, lat );
}
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::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 StereographicProjectionTest::screenCoordinatesOfCenter()
{
QFETCH( QPoint, screenCoordinates );
QFETCH( GeoDataCoordinates, expected );
ViewportParams viewport;
viewport.setProjection( Stereographic );
viewport.setRadius( 180 / 4 ); // for easy mapping of lon <-> x
viewport.setSize( QSize( 20, 20 ) );
viewport.centerOn( 0 * DEG2RAD, 90 * DEG2RAD );
{
qreal lon, lat;
const bool retval = viewport.geoCoordinates( screenCoordinates.x(), screenCoordinates.y(), lon, lat, GeoDataCoordinates::Degree );
QVERIFY( retval ); // we want valid coordinates
QFUZZYCOMPARE( lon, expected.longitude( GeoDataCoordinates::Degree ), 0.0001 );
QFUZZYCOMPARE( lat, expected.latitude( GeoDataCoordinates::Degree ), 0.0001 );
}
}
void MercatorProjectionTest::screenCoordinatesOfCenter_data()
{
ViewportParams mercator;
mercator.setProjection( Mercator );
QTest::addColumn<qreal>( "lon" );
QTest::addColumn<qreal>( "lat" );
addRow() << 0.0 << 0.0;
addRow() << -180.0 << 0.0;
addRow() << 180.0 << 0.0;
addRow() << -360.0 << 0.0;
addRow() << 360.0 << 0.0;
addRow() << -540.0 << 0.0;
addRow() << 540.0 << 0.0;
addRow() << 0.0 << mercator.currentProjection()->minValidLat() * RAD2DEG;
addRow() << 0.0 << mercator.currentProjection()->maxValidLat() * RAD2DEG;
addRow() << -180.0 << mercator.currentProjection()->minValidLat() * RAD2DEG;
addRow() << -180.0 << mercator.currentProjection()->maxValidLat() * RAD2DEG;
addRow() << 180.0 << mercator.currentProjection()->minValidLat() * RAD2DEG;
addRow() << 180.0 << mercator.currentProjection()->maxValidLat() * RAD2DEG;
// FIXME: the following tests should succeed
#if 0
addRow() << -541.0 << 0.0;
addRow() << 541.0 << 0.0;
addRow() << -1000000.0 << 0.0;
addRow() << 1000000.0 << 0.0;
#endif
}
