/// <summary>
/// Searches for locations where the distance from <i>a mesh in one set</i> of meshes
/// is less than distance to <i>another mesh in a second set</i> of meshes.
/// </summary>
/// <param name="setA">The first set of meshes.</param>
/// <param name="setB">The second set of meshes.</param>
/// <param name="distance">The largest distance at which there is a clash.
/// All values smaller than this cause a clash as well.</param>
/// <param name="maxEventCount">The maximum number of clash objects.</param>
/// <returns>An array of clash objects.</returns>
public static MeshClash[] Search(IEnumerable <Mesh> setA, IEnumerable <Mesh> setB, double distance, int maxEventCount)
{
IList <Mesh> _setA = setA as IList <Mesh> ?? new List <Mesh>(setA);
IList <Mesh> _setB = setB as IList <Mesh> ?? new List <Mesh>(setB);
Rhino.Runtime.InteropWrappers.SimpleArrayMeshPointer meshes_a = new Runtime.InteropWrappers.SimpleArrayMeshPointer();
foreach (Mesh m in setA)
{
meshes_a.Add(m, true);
}
Rhino.Runtime.InteropWrappers.SimpleArrayMeshPointer meshes_b = new Runtime.InteropWrappers.SimpleArrayMeshPointer();
foreach (Mesh m in setB)
{
meshes_b.Add(m, true);
}
IntPtr pClashEventList = UnsafeNativeMethods.ON_SimpleArray_ClashEvent_New();
IntPtr pMeshesA = meshes_a.ConstPointer();
IntPtr pMeshesB = meshes_b.ConstPointer();
int count = UnsafeNativeMethods.ONC_MeshClashSearch(pMeshesA, pMeshesB, distance, maxEventCount, true, pClashEventList);
MeshClash[] rc = new MeshClash[count];
Point3d pt = new Point3d();
int indexA = 0;
int indexB = 0;
double radius = distance / 2.0;
for (int i = 0; i < count; i++)
{
MeshClash mc = new MeshClash();
UnsafeNativeMethods.ON_SimpleArray_ClashEvent_GetEvent(pClashEventList, i, ref indexA, ref indexB, ref pt);
if (indexA >= 0 && indexB >= 0)
{
mc.m_mesh_a = _setA[indexA];
mc.m_mesh_b = _setB[indexB];
mc.m_P = pt;
mc.m_radius = radius;
}
rc[i] = mc;
}
meshes_a.Dispose();
meshes_b.Dispose();
UnsafeNativeMethods.ON_SimpleArray_ClashEvent_Delete(pClashEventList);
GC.KeepAlive(setA);
GC.KeepAlive(setB);
return(rc);
}
/// <summary>
/// Searches for locations where the distance from <i>a mesh in one set</i> of meshes
/// is less than distance to <i>another mesh in a second set</i> of meshes.
/// </summary>
/// <param name="setA">The first set of meshes.</param>
/// <param name="setB">The second set of meshes.</param>
/// <param name="distance">The largest distance at which there is a clash.
/// All values smaller than this cause a clash as well.</param>
/// <param name="maxEventCount">The maximum number of clash objects.</param>
/// <returns>An array of clash objects.</returns>
public static MeshClash[] Search(IEnumerable<Mesh> setA, IEnumerable<Mesh> setB, double distance, int maxEventCount)
{
IList<Mesh> _setA = setA as IList<Mesh> ?? new List<Mesh>(setA);
IList<Mesh> _setB = setB as IList<Mesh> ?? new List<Mesh>(setB);
Rhino.Runtime.InteropWrappers.SimpleArrayMeshPointer meshes_a = new Runtime.InteropWrappers.SimpleArrayMeshPointer();
foreach (Mesh m in setA)
meshes_a.Add(m, true);
Rhino.Runtime.InteropWrappers.SimpleArrayMeshPointer meshes_b = new Runtime.InteropWrappers.SimpleArrayMeshPointer();
foreach (Mesh m in setB)
meshes_b.Add(m, true);
IntPtr pClashEventList = UnsafeNativeMethods.ON_SimpleArray_ClashEvent_New();
IntPtr pMeshesA = meshes_a.ConstPointer();
IntPtr pMeshesB = meshes_b.ConstPointer();
int count = UnsafeNativeMethods.ONC_MeshClashSearch(pMeshesA, pMeshesB, distance, maxEventCount, true, pClashEventList);
MeshClash[] rc = new MeshClash[count];
Point3d pt = new Point3d();
int indexA = 0;
int indexB = 0;
double radius = distance / 2.0;
for (int i = 0; i < count; i++)
{
MeshClash mc = new MeshClash();
UnsafeNativeMethods.ON_SimpleArray_ClashEvent_GetEvent(pClashEventList, i, ref indexA, ref indexB, ref pt);
if (indexA >= 0 && indexB >= 0)
{
mc.m_mesh_a = _setA[indexA];
mc.m_mesh_b = _setB[indexB];
mc.m_P = pt;
mc.m_radius = radius;
}
rc[i] = mc;
}
meshes_a.Dispose();
meshes_b.Dispose();
UnsafeNativeMethods.ON_SimpleArray_ClashEvent_Delete(pClashEventList);
return rc;
}