/// <summary>
/// called by ScapeSessionComponent.
/// Here the scape measurement is used to update the world transform object
/// in order to position and orient the camera with respect to the scene's origin.
/// </summary>
/// <param name="coordinates">
/// GPS Coordinates given by scape measurements
/// </param>
/// <param name="heading">
/// The compass heading given by scape measurements
/// </param>
/// <param name="altitude">
/// The the altitude from the ground the camera is at. This is currently supplied by
/// ARKit/Core using the GroundTracker
/// </param>
public void SynchronizeARCamera(LatLng coordinates, float heading, float altitude)
{
if (groundTracker)
{
bool success = false;
float height = groundTracker.GetGroundHeight(out success);
if (success)
{
altitude = -height;
}
else
{
ScapeLogging.LogError(message: "groundTracker.getHeight not found before ScapeMeasurement, falling back to Scape's RawMeasurementEstimate");
}
}
ScapeLogging.LogDebug(message: "SynchronizeARCamera() LatLngCoordinates = " + ScapeUtils.CoordinatesToString(coordinates));
ScapeLogging.LogDebug(message: "SynchronizeARCamera() ARHeading = " + rotationAtScapeMeasurements.y);
ScapeLogging.LogDebug(message: "SynchronizeARCamera() ARPosition = " + positionAtScapeMeasurements.ToString());
if (s2CellId == 0)
{
FindS2CellId(coordinates);
}
// the Unity position the camera should be in, that is it's position relative to the S2 cell based on it's
// gps coordinates
cameraS2Position = ScapeUtils.WgsToLocal(
coordinates.Latitude,
coordinates.Longitude,
altitude,
s2CellId);
// the world transform direction corrects the camera's Heading to be relative to North.
worldTransformDirection = heading - rotationAtScapeMeasurements.y;
if (worldTransformDirection < 0.0)
{
worldTransformDirection += 360.0f;
}
ScapeLogging.LogDebug(message: "SynchronizeARCamera() worldTransformDirectionYAngle = " + worldTransformDirection);
Vector3 positionAtScapeMeasurementsRotated = Quaternion.AngleAxis(worldTransformDirection, Vector3.up) * positionAtScapeMeasurements;
// the world transform position corrects the camera's final position after applying the direction correction
worldTransformPosition = cameraS2Position - positionAtScapeMeasurementsRotated;
ScapeLogging.LogDebug(message: "SynchronizeARCamera() worldTransformPosition = " + worldTransformPosition.ToString());
if (updateWorldTransform)
{
previousYDirection = lerpDirection;
previousPosition = lerpPosition;
}
updateWorldTransform = true;
updateStartTime = Time.time;
}
/// <summary>
/// Initializes the GeoAnchorManager, should only happen once
/// Sets the S2Cell if the user has given GPS coordinates, other wise that is done later
/// when the ScapeMeasurement comes in.
/// </summary>
private void StaticInit()
{
ScapeLogging.LogDebug(message: "GeoAnchorManager::StaticInit()");
if (geoAnchorManager != null)
{
ScapeLogging.LogError(message: "Error: more than one GeoAnchorManager detected in scene!");
}
else
{
geoAnchorManager = this;
}
}
static void onAquireLocationMeasurements(ref ScapeNative.location_measurements lm)
{
if (haveLocation)
{
lm.longitude = lastInfo.longitude;
lm.latitude = lastInfo.latitude;
}
else
{
ScapeLogging.LogError("ScapeClientNative::onAquireLocationMeasurements called but Unity has not retrieved location measurements from device yet. Have Location Permissions been allowed?");
lm.longitude = 0.0;
lm.latitude = 0.0;
}
}
/// <summary>
/// The public function to request a ScapeMeasurement.
/// </summary>
public void GetMeasurements()
{
if (this.scapeMeasurementInProgress)
{
ScapeLogging.LogError("GetMeasuremnts ignored, scapeMeasurements already in progress");
return;
}
if (this.scapeSessionNative != null)
{
this.scapeMeasurementInProgress = true;
this.scapeSessionNative.GetMeasurements();
}
else
{
ScapeLogging.LogError("GetMeasurements called before scapeSessionNative initialized");
}
}
/// <summary>
/// used at runtime to retrieve the api key for the ScapeClient
/// </summary>
/// <returns>
/// returns the apikey if found
/// </returns>
public static string RetrieveKeyFromResources()
{
try
{
#if UNITY_EDITOR
using (StreamReader streamReader = new StreamReader(resPath + apikeyFileName + ".txt"))
{
string apiKey = streamReader.ReadLine();
return(apiKey);
}
#else
string apiKey = Resources.Load <TextAsset>(apikeyFileName).ToString();
return(apiKey);
#endif
}
catch (Exception ex)
{
ScapeLogging.LogError("Exception retrieving apikey: " + ex.ToString());
return(string.Empty);
}
}
/// <summary>
/// save the api key to the specific file in resources folder
/// </summary>
/// <param name="apiKey">
/// the apikey as string
/// </param>
public static void SaveApiKeyToResource(string apiKey)
{
try
{
if (apiKey.Length == 0)
{
return;
}
if (!Directory.Exists(resPath))
{
Directory.CreateDirectory(resPath);
}
using (StreamWriter writer = new StreamWriter(resPath + apikeyFileName + ".txt", false))
{
writer.WriteLine(apiKey.Trim());
}
}
catch (Exception e)
{
ScapeLogging.LogError(message: "Failed to save apikey to '" + resPath + "'");
}
}