added handle types Translation2D and Translation3D

Author: Daniel4144

org.mixedrealitytoolkit.spatialmanipulation/BoundsControl/BoundsControl.cs

@@ -915,6 +915,56 @@ private void TransformTarget()
                         //     transformUpdated = elasticsManager.ApplyTargetTransform(constraintTranslate, TransformFlags.Move);
                         // }
 
+                        if (!transformUpdated.IsMaskSet(TransformFlags.Move))
+                        {
+                            Target.transform.position = smoothingActive ?
+                                Smoothing.SmoothTo(Target.transform.position, constraintTranslate.Position, translateLerpTime, Time.deltaTime) :
+                                constraintTranslate.Position;
+                        }
+                    }
+                    else if (currentHandle.HandleType == HandleType.Translation2D)
+                    {
+                        Vector3 translateVectorOnPlane = Vector3.ProjectOnPlane(currentGrabPoint - initialGrabPoint, currentHandle.transform.forward);
+
+                        var goal = initialTransformOnGrabStart.Position + translateVectorOnPlane;
+                        MixedRealityTransform constraintTranslate = MixedRealityTransform.NewTranslate(goal);
+                        if (EnableConstraints && constraintsManager != null)
+                        {
+                            constraintsManager.ApplyTranslationConstraints(ref constraintTranslate, true, currentHandle.IsGrabSelected);
+                        }
+
+                        // TODO: Elastics integration (soon!)
+
+                        // if (elasticsManager != null)
+                        // {
+                        //     transformUpdated = elasticsManager.ApplyTargetTransform(constraintTranslate, TransformFlags.Move);
+                        // }
+
+                        if (!transformUpdated.IsMaskSet(TransformFlags.Move))
+                        {
+                            Target.transform.position = smoothingActive ?
+                                Smoothing.SmoothTo(Target.transform.position, constraintTranslate.Position, translateLerpTime, Time.deltaTime) :
+                                constraintTranslate.Position;
+                        }
+                    }
+                    else if (currentHandle.HandleType == HandleType.Translation3D)
+                    {
+                        Vector3 translateVector = currentGrabPoint - initialGrabPoint;
+
+                        var goal = initialTransformOnGrabStart.Position + translateVector;
+                        MixedRealityTransform constraintTranslate = MixedRealityTransform.NewTranslate(goal);
+                        if (EnableConstraints && constraintsManager != null)
+                        {
+                            constraintsManager.ApplyTranslationConstraints(ref constraintTranslate, true, currentHandle.IsGrabSelected);
+                        }
+
+                        // TODO: Elastics integration (soon!)
+
+                        // if (elasticsManager != null)
+                        // {
+                        //     transformUpdated = elasticsManager.ApplyTargetTransform(constraintTranslate, TransformFlags.Move);
+                        // }
+
                         if (!transformUpdated.IsMaskSet(TransformFlags.Move))
                         {
                             Target.transform.position = smoothingActive ?

org.mixedrealitytoolkit.spatialmanipulation/BoundsControl/BoundsControlTypes.cs

@@ -64,12 +64,22 @@ public enum HandleType
         Scale = 1 << 1,
 
         /// <summary>
-        /// A handle that is mounted to the face of a <see cref="BoundsControl"/>, and can move the object.
+        /// A handle that is mounted to the face of a <see cref="BoundsControl"/>, and can move the object along the forward axis.
         /// </summary>
         /// <remarks>
         /// Handles of this type are currently not supported.
         /// </remarks>
         Translation = 1 << 2,
+
+        /// <summary>
+        /// A handle that is mounted to the face of a <see cref="BoundsControl"/>, and can move the object normal to the forward axis.
+        /// </summary>
+        Translation2D = 1 << 2,
+
+        /// <summary>
+        /// A handle that is mounted to the face of a <see cref="BoundsControl"/>, and can move the object in all three dimensions.
+        /// </summary>
+        Translation3D = 1 << 2,
     }
 
     /// <summary>