public void testCompose1() {
AffineTransformation t0 = AffineTransformation.translationInstance(10, 0);
t0.rotate(Math.PI / 2);
t0.translate(0, -10);
AffineTransformation t1 = AffineTransformation.translationInstance(0, 0);
t1.rotate(Math.PI / 2);
checkTransformation(t0, t1);
}
public void testComposeRotation1() {
AffineTransformation t0 = AffineTransformation.rotationInstance(1, 10, 10);
AffineTransformation t1 = AffineTransformation.translationInstance(-10, -10);
t1.rotate(1);
t1.translate(10, 10);
checkTransformation(t0, t1);
}
/**
* Create device locations in a path near the main zone.
*
* @param assignment
* @param start
* @return
* @throws SiteWhereException
*/
protected List<IDeviceLocation> createDeviceLocations(IDeviceAssignment assignment, Date date)
throws SiteWhereException {
long current = date.getTime();
Polygon zone = GeoUtils.createPolygonForLocations(zoneLocations);
Point centroid = zone.getCentroid();
// Calculate length of steps between locations based on bounding circle.
MinimumBoundingCircle circle = new MinimumBoundingCircle(zone);
double step = circle.getRadius() / 10;
double cx = centroid.getX();
double cy = centroid.getY();
double deltaX = (Math.sqrt(Math.random()) * step * 2) - step;
double deltaY = (Math.sqrt(Math.random()) * step * 2) - step;
// Used to rotate deltas to turn path and stay inside polygon.
AffineTransformation xform = new AffineTransformation();
xform.rotate(Math.toRadians(22.5));
List<IDeviceLocation> results = new ArrayList<IDeviceLocation>();
GeometryFactory factory = new GeometryFactory();
for (int x = 0; x < LOCATIONS_PER_ASSIGNMENT; x++) {
boolean foundNext = false;
// Add a little randomness to path.
double waver = ((Math.random() * 20) - 10.0);
AffineTransformation waverXform = new AffineTransformation();
waverXform.rotate(Math.toRadians(waver));
Coordinate waverDelta = new Coordinate(deltaX, deltaY);
waverXform.transform(waverDelta, waverDelta);
deltaX = waverDelta.x;
deltaY = waverDelta.y;
while (!foundNext) {
Coordinate start = new Coordinate(cx, cy);
Coordinate end = new Coordinate(cx + deltaX, cy + deltaY);
Coordinate[] lineCoords = {start, end};
LineString line = factory.createLineString(lineCoords);
if (zone.contains(line)) {
DeviceLocationCreateRequest request = new DeviceLocationCreateRequest();
request.setLatitude(end.y);
request.setLongitude(end.x);
request.setElevation(0.0);
request.setEventDate(new Date(current));
IDeviceLocation created =
getDeviceManagement().addDeviceLocation(assignment.getToken(), request);
results.add(created);
cx = cx + deltaX;
cy = cy + deltaY;
foundNext = true;
} else {
// Rotate deltas and try again.
Coordinate delta = new Coordinate(deltaX, deltaY);
xform.transform(delta, delta);
deltaX = delta.x;
deltaY = delta.y;
}
}
current += 30000;
}
LOGGER.info(PREFIX_CREATE_EVENTS + " " + results.size() + " locations. ");
return results;
}
