@Test
public void testGetTime_threeSegments() throws ParseException {
final S2Polyline lineString = (S2Polyline) wktReader.read("LINESTRING(2 5, 1 3, -1 1, -3 0)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(lineString), new Date(1000000000000L), new Date(1000001000000L));
final Point point = (Point) geometryFactory.parse("POINT(3 2)");
final Date time = timeAxis.getTime(point);
assertEquals(1000000306224L, time.getTime());
}
@Test
public void testGetIntersectionTime_noIntersection() {
final Polygon polygon = (Polygon) geometryFactory.parse("POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))");
final S2Polyline polyline = (S2Polyline) wktReader.read("LINESTRING(0 -2,4 -2)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(polyline), new Date(100000000000L), new Date(100001000000L));
final TimeInterval timeInterval = timeAxis.getIntersectionTime(polygon);
assertNull(timeInterval);
}
@Test
public void testGetTime_PointOnLine() throws ParseException {
final S2Polyline polyline = (S2Polyline) wktReader.read("LINESTRING(0 0, 4 0)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(polyline), new Date(1000000000000L), new Date(1000001000000L));
final Point point = (Point) geometryFactory.parse("POINT(2 0)");
final Date time = timeAxis.getTime(point);
assertEquals(1000000499999L, time.getTime());
}
@Test
public void testGetIntersectionTime_StraightLineWithSquare_shifted() throws ParseException {
final Polygon polygon = (Polygon) geometryFactory.parse("POLYGON((0 0, 0 4, 4 4, 4 0, 0 0))");
final S2Polyline polyline = (S2Polyline) wktReader.read("LINESTRING(-1 1,5 7)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(polyline), new Date(100000000000L), new Date(100001000000L));
final TimeInterval timeInterval = timeAxis.getIntersectionTime(polygon);
assertNotNull(timeInterval);
assertTimeIntervalEquals(100000167518L, 100000499493L, timeInterval);
}
@Test
public void testGetIntersectionTime_StraightLineWithSquare() {
final Polygon polygon = (Polygon) geometryFactory.parse("POLYGON((0 0, 0 4, 4 4, 4 0, 0 0))");
final S2Polyline polyline = (S2Polyline) wktReader.read("LINESTRING(-2 0,4 6)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(polyline), new Date(100000000000L), new Date(100001000000L));
final TimeInterval timeInterval = timeAxis.getIntersectionTime(polygon);
assertNotNull(timeInterval);
assertTimeIntervalEquals(100000334421L, 100000666394L, timeInterval);
}
@Test
public void testGetGeometry() {
final S2Polyline axisLine = (S2Polyline) wktReader.read("LINESTRING(6 2, 8 -1, 9 -4)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(axisLine), new Date(1000000000000L), new Date(1001000000000L));
final Geometry geometry = timeAxis.getGeometry();
assertEquals(
"LINESTRING(6.0 2.0,7.999999999999998 -1.0,9.000000000000002 -4.0)",
geometryFactory.format(geometry));
}
@Test
public void testGetProjectionTime__almostNormalAngle() {
final LineString lineString = (LineString) geometryFactory.parse("LINESTRING(4 -1, 5 1, 8 3)");
final S2Polyline axisLine = (S2Polyline) wktReader.read("LINESTRING(5 3, 7 0, 8 -3)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(axisLine), new Date(1000000000000L), new Date(1001000000000L));
final TimeInterval projectionTime = timeAxis.getProjectionTime(lineString);
assertNotNull(projectionTime);
assertEquals(1000245367407L, projectionTime.getStartTime().getTime());
assertEquals(1000409968732L, projectionTime.getStopTime().getTime());
}
@Test
public void testGetIntersectionTime_StraightLineWithRectangle_line_inside()
throws ParseException {
final Polygon polygon = (Polygon) geometryFactory.parse("POLYGON((0 0, 0 2, 5 2, 5 0, 0 0))");
final S2Polyline polyline = (S2Polyline) wktReader.read("LINESTRING(1 1,4 1)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(polyline), new Date(100000000000L), new Date(100001000000L));
final TimeInterval timeInterval = timeAxis.getIntersectionTime(polygon);
assertNotNull(timeInterval);
assertTimeIntervalEquals(100000000000L, 100001000000L, timeInterval);
}
@Test
public void testGetProjectionTime__angle_projectedLineLonger_andInverseDirection() {
final LineString lineString =
(LineString) geometryFactory.parse("LINESTRING(-3 -5, -2 -2, -1 1, 1 4)");
final S2Polyline axisLine = (S2Polyline) wktReader.read("LINESTRING(-1 3, -3 0, -4 -3)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(axisLine), new Date(1000000000000L), new Date(1001000000000L));
final TimeInterval projectionTime = timeAxis.getProjectionTime(lineString);
assertNotNull(projectionTime);
assertEquals(1000000000000L, projectionTime.getStartTime().getTime());
assertEquals(1000999999999L, projectionTime.getStopTime().getTime());
}
@Test
public void testGetProjectionTime__angle_projectedLineShorter() {
final LineString lineString =
(LineString) geometryFactory.parse("LINESTRING(-3 2, -4 1, -5 -1)");
final S2Polyline axisLine = (S2Polyline) wktReader.read("LINESTRING(-1 3, -3 0, -4 -3)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(axisLine), new Date(1000000000000L), new Date(1001000000000L));
final TimeInterval projectionTime = timeAxis.getProjectionTime(lineString);
assertNotNull(projectionTime);
assertEquals(1000286702111L, projectionTime.getStartTime().getTime());
assertEquals(1000766383826L, projectionTime.getStopTime().getTime());
}
@Test
public void testGetProjectionTime_sameLine_inverseDirection() {
final LineString lineString =
(LineString) geometryFactory.parse("LINESTRING(-1 -8, 0 -7.2, 1 -7.5)");
final S2Polyline axisLine = (S2Polyline) wktReader.read("LINESTRING(1 -7.5, 0 -7.2, -1 -8)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(axisLine), new Date(1000000000000L), new Date(1001000000000L));
final TimeInterval projectionTime = timeAxis.getProjectionTime(lineString);
assertNotNull(projectionTime);
assertEquals(1000000000000L, projectionTime.getStartTime().getTime());
assertEquals(1000999999999L, projectionTime.getStopTime().getTime());
}
@Test
public void testGetIntersectionTime_SegmentedLineWithParallelogram() throws ParseException {
final Polygon polygon =
(Polygon) geometryFactory.parse("POLYGON((2 -2, 7 -2, 9 -5, 4 -5, 2 -2))");
final S2Polyline polyline =
(S2Polyline) wktReader.read("LINESTRING(1 -6, 2 -4, 4 -3, 6 -3,8 -2)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(polyline), new Date(100000000000L), new Date(100001000000L));
final TimeInterval timeInterval = timeAxis.getIntersectionTime(polygon);
assertNotNull(timeInterval);
assertTimeIntervalEquals(100000384991L, 100000903592L, timeInterval);
}
@Test
public void testGetTime_threeSegments_noProjection_beforeLineStart() throws ParseException {
final S2Polyline lineString = (S2Polyline) wktReader.read("LINESTRING(1 2, -1 2, -3 4, -5 4)");
final BcS2TimeAxis timeAxis =
new BcS2TimeAxis(
new BcS2LineString(lineString), new Date(1000000000000L), new Date(1000001000000L));
final Point point = (Point) geometryFactory.parse("POINT(4 6)");
final Date time = timeAxis.getTime(point);
assertEquals(1000000000000L, time.getTime());
// note: this is exactly the line start point time as the S2 library automatically projects
// points outside to
// the last/first vertex. We hope that these points are filtered during execution by the
// point-in-polygon tests tb 2016-02-29
}