/// <inheritdoc />
public override bool HitTest(Vector2 screenPosition, ARMobileHitType hitType, out ARMobileHitTestResult[] results)
{
if (this.currentFrame?.Camera == null ||
this.currentFrame.Camera.TrackingState != Google.AR.Core.TrackingState.Tracking)
{
results = null;
return(false);
}
var resultAnchors = new List <ARMobileHitTestResult>();
foreach (var hit in this.currentFrame.HitTest(screenPosition.X, screenPosition.Y))
{
ARMobileHitType?currentHitType = null;
var trackable = hit.Trackable;
if ((hitType & ARMobileHitType.FeaturePoint) != 0 &&
trackable is ARCore.Point)
{
currentHitType = ARMobileHitType.FeaturePoint;
}
else if (trackable is ARCore.Plane)
{
if ((hitType & ARMobileHitType.ExistingPlaneUsingExtent) != 0 &&
((ARCore.Plane)trackable).IsPoseInExtents(hit.HitPose))
{
currentHitType = ARMobileHitType.ExistingPlaneUsingExtent;
}
else if ((hitType & ARMobileHitType.ExistingPlaneUsingGeometry) != 0 &&
((ARCore.Plane)trackable).IsPoseInPolygon(hit.HitPose))
{
currentHitType = ARMobileHitType.ExistingPlaneUsingGeometry;
}
else if ((hitType & ARMobileHitType.ExistingPlane) != 0 ||
(hitType & ARMobileHitType.EstimatedHorizontalPlane) != 0)
{
currentHitType = ARMobileHitType.ExistingPlane;
}
}
if (currentHitType.HasValue)
{
var trackableId = trackable.GetGuid();
var hitResult = new ARMobileHitTestResult()
{
Distance = hit.Distance,
HitType = currentHitType.Value,
Anchor = this.FindAnchor(trackableId)
};
hit.HitPose.ToWave(out hitResult.WorldTransform);
resultAnchors.Add(hitResult);
}
}
results = resultAnchors.ToArray();
return(resultAnchors.Count > 0);
}
/// <inheritdoc />
public override bool HitTest(Vector2 screenPosition, ARMobileHitType hitType, out ARMobileHitTestResult[] results)
{
var point = new CGPoint(screenPosition.X / this.platform.ScreenWidth, screenPosition.Y / this.platform.ScreenHeight);
var arHitTestResultType = hitType.ToARKit();
var arKitResults = this.arkitSession.CurrentFrame?.HitTest(point, arHitTestResultType);
if (arKitResults != null)
{
results = new ARMobileHitTestResult[arKitResults.Length];
for (int i = 0; i < arKitResults.Length; i++)
{
var arkitResult = arKitResults[i];
var hitResult = new ARMobileHitTestResult()
{
Distance = (float)arkitResult.Distance,
HitType = arkitResult.Type.ToWave(),
};
arkitResult.WorldTransform.ToWave(out hitResult.WorldTransform);
var anchor = arkitResult.Anchor;
if (anchor != null)
{
var anchorId = anchor.Identifier.ToWave();
hitResult.Anchor = this.FindAnchor(anchorId);
}
results[i] = hitResult;
}
return(arKitResults.Length > 0);
}
results = null;
return(false);
}
