BackendService.java 文件源码

/**
 * Check to see if the coverage area (location) of an RF emitter is close
 * enough to others in a group that we can believably add it to the group.
 * @param location The coverage area of the candidate emitter
 * @param locGroup The coverage areas of the emitters already in the group
 * @param radius The coverage radius expected for they type of emitter
 *                 we are dealing with.
 * @return
 */
private boolean locationCompatibleWithGroup(Location location,
                                            Set<Location> locGroup,
                                            double radius) {

    // If the location is within range of all current members of the
    // group, then we are compatible.
    for (Location other : locGroup) {
        double testDistance = (location.distanceTo(other) -
                location.getAccuracy() -
                other.getAccuracy());

        if (testDistance > radius) {
            return false;
        }
    }
    return true;
}