public static bool Intersects(GameObject cutGO, GameObject go2)
{
if (cutGO.GetComponent <BoxCollider>().bounds.Intersects(go2.GetComponent <BoxCollider>().bounds))
{
string cutMeshOff = ObjectFileFormat.MeshToOff(cutGO.GetComponent <MeshFilter>().mesh, cutGO.transform);
string cuttedMeshOff = ObjectFileFormat.MeshToOff(go2.GetComponent <MeshFilter>().mesh, go2.transform);
int result = CGALPlugin.CheckIntersection(Marshal.StringToHGlobalAnsi(cutMeshOff), Marshal.StringToHGlobalAnsi(cuttedMeshOff));
if (result == 1)
{
return(true);
}
}
SceneManager.instance.errorMesage.text = "Trail do not intersects any object.";
return(false);
}
private Mesh CutMesh(Mesh cutMesh, GameObject cutMeshGO, string cuttedGoName, string cuttedMeshOff, string cuttedMeshMatrix)
{
/* ********** handle cut mesh ********** */
string cutMeshOff = ObjectFileFormat.MeshToOff(cutMesh, cutMeshGO.transform);
IntPtr cutMeshPtr = Marshal.StringToHGlobalAnsi(cutMeshOff);
IntPtr cutMeshTransformPtr = Marshal.StringToHGlobalAnsi(GeomUtils.GetTransformationMatrix(cutMeshGO.transform, 0f, 0f, 0f));
//exportOff
//ExportOff(cutMeshOff, "./Assets/" + cutMeshGO.name + ".off");
/* ********** handle cutted mesh ********** */
IntPtr cuttedMeshPtr = Marshal.StringToHGlobalAnsi(cuttedMeshOff);
IntPtr cuttedMeshTransformPtr = Marshal.StringToHGlobalAnsi(cuttedMeshMatrix);
//exportOff
//ExportOff(cuttedMeshOff, "./Assets/" + cuttedGoName + ".off");
/* ********** compute cut with CGAL********** */
IntPtr ptrResult = CGALPlugin.BooleanOperationClean(cuttedMeshPtr, cuttedMeshTransformPtr, cutMeshPtr, cutMeshTransformPtr, Marshal.StringToHGlobalAnsi("difference"));
//Convert IntPtr to string
string result = Marshal.PtrToStringAnsi(ptrResult);
//exportOff
//ExportOff(result, DataPath + initialObjectName + parts + ".off");
// Open string stream on the result off string
byte[] byteArray = Encoding.UTF8.GetBytes(result);
MemoryStream stream = new MemoryStream(byteArray);
//Convert off string to Mesh and add it to scene
Mesh myMesh = ObjectFileFormat.OffToMesh(new StreamReader(stream));
stream.Close();
myMesh.RecalculateNormals();
//Export obj file
ObjExporter.MeshToFile(myMesh, "Split-" + DateTime.Now.ToString("hhmmssffff"), "BenchMat");
#if UNITY_EDITOR
AssetDatabase.Refresh();
#endif
return(myMesh);
}
public IEnumerator FusionSelection()
{
//Wait for object selection or cancel
while (fusionList.Count != 2 && this.FusionPanel.activeInHierarchy)
{
yield return(new WaitForSeconds(0.001f));
}
//Do merge
if (fusionList.Count == 2)
{
GameObject GO1 = GameObject.Find(fusionList.Keys[0]);
GameObject GO2 = GameObject.Find(fusionList.Keys[1]);
Debug.Log("MERGING " + GO1.name + " AND " + GO2.name);
if (GeomUtils.Intersects(GO1, GO2))
{
Debug.Log("INTERSECTS");
string GO1Off = ObjectFileFormat.MeshToOff(GO1.GetComponent <MeshFilter>().mesh, GO1.transform);
string GO2Off = ObjectFileFormat.MeshToOff(GO2.GetComponent <MeshFilter>().mesh, GO2.transform);
System.IntPtr GO1Ptr = Marshal.StringToHGlobalAnsi(GO1Off);
IntPtr GO2Ptr = Marshal.StringToHGlobalAnsi(GO2Off);
String matrix1 = GeomUtils.GetTransformationMatrix(GO1.transform, 0f, 0f, 0f);
String matrix2 = GeomUtils.GetTransformationMatrix(GO1.transform, 0f, 0f, 0f);
IntPtr GO1TransformPtr = Marshal.StringToHGlobalAnsi(matrix1);
IntPtr GO2TransformPtr = Marshal.StringToHGlobalAnsi(matrix2);
IntPtr ptrResult = CGALPlugin.BooleanOperationClean(GO1Ptr, GO1TransformPtr, GO2Ptr, GO2TransformPtr, Marshal.StringToHGlobalAnsi("union"));
string result = Marshal.PtrToStringAnsi(ptrResult);
//exportOff
/*StreamWriter SW = new StreamWriter(SceneManager.DataPath + "Fusion-" + DateTime.Now.ToString("hhmmss") + (Time.deltaTime * 1000) + ".off");
* SW.Write(result);
* SW.Close();*/
// Open string stream on the result off string
byte[] byteArray = Encoding.UTF8.GetBytes(result);
MemoryStream stream = new MemoryStream(byteArray);
//Convert off string to Mesh and add it to scene
Mesh myMesh = ObjectFileFormat.OffToMesh(new StreamReader(stream));
stream.Close();
myMesh.RecalculateNormals();
//Export obj file
ObjExporter.MeshToFile(myMesh, "Fusion-" + DateTime.Now.ToString("hhmmssffff"), "BenchMat");
//Add mesh to scene
GeomUtils.AddMeshToScene("Fusion-" + DateTime.Now.ToString("hhmmssffff"), myMesh, Vector3.zero, objectContainer.transform);
//Destroy previous previous meshes
Destroy(GO1.transform.parent.gameObject);
Destroy(GO2.transform.parent.gameObject);
}
//Not intersecting
else
{
SceneManager.instance.errorMesage.text = "Selected objects are not overlapped !";
}
ResetFusionSelection();
}
}
