Initial Commit

Assets/Imstk/Scripts/BoundaryCondition.cs

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+/*=========================================================================
+
+   Library: iMSTK-Unity
+
+   Copyright (c) Kitware, Inc. 
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0.txt
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+=========================================================================*/
+
+using UnityEngine;
+
+namespace ImstkUnity
+{
+    [AddComponentMenu("iMSTK/BoundaryCondition")]
+    /// <summary>
+    /// Use this behavior to mark vertices on a deformable object as `fixed`. 
+    /// </summary>
+    /// This means they won't move but are still part of the overall system.
+    /// In general this will mean that the object will be attached to the points 
+    /// selected. As the shape assigned can be any mesh this is an easy way to fix 
+    /// an object in space. To indicate which points should be you can use any unity
+    /// Boundary condition points are considered to have infinite mass, this may cause
+    /// issues with collision response, prefer the "Constraint" behaviors over this one.
+    public class BoundaryCondition : MonoBehaviour
+    {
+        public GameObject bcObj = null;
+        public bool hideMesh = true;
+        void Start()
+        {
+            var renderer = bcObj.GetComponent<MeshRenderer>();
+            if (renderer != null && hideMesh)
+            {
+                renderer.enabled = false;
+            }
+        }
+    }
+}