private Vector3 getGroundPlaneHitPoint(Ray ray)
{
float distance;
if (!_groundPlane.Raycast(ray, out distance))
{
return(Vector3.zero);
}
return(ray.GetPoint(distance));
}
private Vector2dBounds getcurrentViewPortWebMerc(bool useGroundPlane = true)
{
if (useGroundPlane)
{
// rays from camera to groundplane: lower left and upper right
_ray00 = _cbtpOptions.camera.ViewportPointToRay(new Vector3(0, 0));
_ray01 = _cbtpOptions.camera.ViewportPointToRay(new Vector3(0, 1));
_ray10 = _cbtpOptions.camera.ViewportPointToRay(new Vector3(1, 0));
_ray11 = _cbtpOptions.camera.ViewportPointToRay(new Vector3(1, 1));
_hitPnt[0] = getGroundPlaneHitPoint(_ray00);
_hitPnt[1] = getGroundPlaneHitPoint(_ray01);
_hitPnt[2] = getGroundPlaneHitPoint(_ray10);
_hitPnt[3] = getGroundPlaneHitPoint(_ray11);
}
// Find min max bounding box.
// TODO : Find a better way of doing this.
double minLat = double.MaxValue;
double minLong = double.MaxValue;
double maxLat = double.MinValue;
double maxLong = double.MinValue;
for (int pointIndex = 0; pointIndex < HIT_POINTS_COUNT; ++pointIndex)
{
_hitPntGeoPos[pointIndex] = _map.WorldToGeoPosition(_hitPnt[pointIndex]);
}
for (int i = 0; i < HIT_POINTS_COUNT; i++)
{
if (_hitPnt[i] == Vector3.zero)
{
continue;
}
else
{
if (minLat > _hitPntGeoPos[i].x)
{
minLat = _hitPntGeoPos[i].x;
}
if (minLong > _hitPntGeoPos[i].y)
{
minLong = _hitPntGeoPos[i].y;
}
if (maxLat < _hitPntGeoPos[i].x)
{
maxLat = _hitPntGeoPos[i].x;
}
if (maxLong < _hitPntGeoPos[i].y)
{
maxLong = _hitPntGeoPos[i].y;
}
}
}
Vector2d hitPntSWGeoPos = new Vector2d(minLat, minLong);
Vector2d hitPntNEGeoPos = new Vector2d(maxLat, maxLong);
Vector2dBounds tileBounds = new Vector2dBounds(Conversions.LatLonToMeters(hitPntSWGeoPos), Conversions.LatLonToMeters(hitPntNEGeoPos)); // Bounds debugging.
#if UNITY_EDITOR
Debug.DrawLine(_cbtpOptions.camera.transform.position, _map.GeoToWorldPosition(hitPntSWGeoPos), Color.blue);
Debug.DrawLine(_cbtpOptions.camera.transform.position, _map.GeoToWorldPosition(hitPntNEGeoPos), Color.red);
#endif
return(tileBounds);
}