// Updates overlay surface mesh. Returns true on success, false if the surface needs to be deleted
private bool UpdateOverlaySurface(OverlaySurfaceUpdater overlaySurface, DetectedPlane trackedSurface)
{
// check for validity
if (overlaySurface == null || trackedSurface == null)
{
return(false);
}
else if (trackedSurface.SubsumedBy != null)
{
return(false);
}
else if (trackedSurface.TrackingState != TrackingState.Tracking)
{
overlaySurface.SetEnabled(false);
return(true);
}
// enable the surface
overlaySurface.SetEnabled(true);
// estimate mesh vertices
List <Vector3> meshVertices = new List <Vector3>();
// GetBoundaryPolygon returns points in clockwise order.
trackedSurface.GetBoundaryPolygon(meshVertices);
int verticeLength = meshVertices.Count;
// surface position & rotation
Vector3 surfacePos = trackedSurface.CenterPose.position; // Vector3.zero; //
Quaternion surfaceRot = trackedSurface.CenterPose.rotation; // Quaternion.identity; //
// estimate vertices relative to the center
Quaternion invRot = Quaternion.Inverse(surfaceRot);
for (int v = verticeLength - 1; v >= 0; v--)
{
meshVertices[v] -= surfacePos;
meshVertices[v] = invRot * meshVertices[v];
if (Mathf.Abs(meshVertices[v].y) > 0.1f)
{
meshVertices.RemoveAt(v);
}
}
// estimate mesh indices
List <int> meshIndices = MultiARInterop.GetMeshIndices(meshVertices.Count);
// update the surface mesh
overlaySurface.UpdateSurfaceMesh(surfacePos, surfaceRot, meshVertices, meshIndices);
return(true);
}
/// <summary>
/// Gets the currently tracked surfaces.
/// </summary>
/// <returns>The tracked surfaces.</returns>
public MultiARInterop.TrackedSurface[] GetTrackedSurfaces(bool bGetPoints)
{
MultiARInterop.TrackedSurface[] trackedPlanes = new MultiARInterop.TrackedSurface[allTrackedPlanes.Count];
for (int i = 0; i < allTrackedPlanes.Count; i++)
{
DetectedPlane surface = allTrackedPlanes[i];
trackedPlanes[i] = new MultiARInterop.TrackedSurface();
trackedPlanes[i].position = surface.CenterPose.position;
trackedPlanes[i].rotation = surface.CenterPose.rotation;
trackedPlanes[i].bounds = new Vector3(surface.ExtentX, 0f, surface.ExtentZ);
if (bGetPoints)
{
List <Vector3> alPoints = new List <Vector3>();
surface.GetBoundaryPolygon(alPoints);
int vertexCount = alPoints.Count;
Quaternion invRot = Quaternion.Inverse(surface.CenterPose.rotation);
Vector3 centerPos = surface.CenterPose.position;
for (int v = vertexCount - 1; v >= 0; v--)
{
alPoints[v] -= centerPos;
alPoints[v] = invRot * alPoints[v];
if (Mathf.Abs(alPoints[v].y) > 0.1f)
{
alPoints.RemoveAt(v);
}
}
// get mesh indices
List <int> meshIndices = MultiARInterop.GetMeshIndices(vertexCount);
trackedPlanes[i].points = alPoints.ToArray();
trackedPlanes[i].triangles = meshIndices.ToArray();
}
}
return(trackedPlanes);
}
