/// <summary>
/// - Generates IFCProject-related items
/// - Generates Not-referenced-in-structure items
/// - Generates Header info
/// - Generates check box per items
/// </summary>
public void BuildTree(ViewController ifcViewer, IntPtr ifcModel, IFCItem ifcRoot, TreeView treeControl)
{
treeControl.Nodes.Clear();
if (ifcViewer == null) {
throw new ArgumentException("The viewer is null.");
}
if (ifcModel == IntPtr.Zero) {
throw new ArgumentException("Invalid model.");
}
if (ifcRoot == null) {
throw new ArgumentException("The root is null.");
}
if (treeControl == null) {
throw new ArgumentException("The tree control is null.");
}
Cursor.Current = Cursors.WaitCursor;
_viewController = ifcViewer;
_ifcModel = ifcModel;
_ifcRoot = ifcRoot;
_treeControl = treeControl;
_dicCheckedElements.Clear();
CreateHeaderTreeItems();
CreateProjectTreeItems();
CreateNotReferencedTreeItems();
}
public void CreateItem(IFCItem parent, IntPtr ifcID, string ifcType, string globalID, string name, string desc)
{
this.parent = parent;
this.next = null;
this.child = null;
this.globalID = globalID;
this.ifcID = ifcID;
this.ifcType = ifcType;
this.description = desc;
this.name = name;
if (parent != null) {
if (parent.child == null) {
parent.child = this;
} else {
IFCItem NextChild = parent;
while (true) {
if (NextChild.next == null) {
NextChild.next = this;
break;
} else {
NextChild = NextChild.next;
}
}
}
}
}
public void SelectItem(IFCItem ifcItem)
{
if (ifcItem != null && ifcItem.Mesh3d != null)
{
OnModelSelected(ifcItem.Mesh3d);
}
this.Redraw();
}
private void GenerateWireFrameGeometry(IntPtr ifcModel, IFCItem ifcItem)
{
if (ifcItem.ifcID != IntPtr.Zero)
{
IntPtr noVertices = IntPtr.Zero, noIndices = IntPtr.Zero;
_ifcEngine.InitializeModellingInstance(ifcModel, ref noVertices, ref noIndices, 0, ifcItem.ifcID);
if (noVertices != IntPtr.Zero && noIndices != IntPtr.Zero)
{
ifcItem.noVerticesForWireFrame = noVertices.ToInt32();
ifcItem.verticesForWireFrame = new float[3 * noVertices.ToInt32()];
ifcItem.indicesForWireFrame = new int[noIndices.ToInt32()];
float[] pVertices = new float[noVertices.ToInt32() * 3];
_ifcEngine.FinalizeModelling(ifcModel, pVertices, ifcItem.indicesForWireFrame, IntPtr.Zero);
int i = 0;
while (i < noVertices.ToInt32())
{
ifcItem.verticesForWireFrame[3 * i + 0] = pVertices[3 * i + 0];
ifcItem.verticesForWireFrame[3 * i + 1] = pVertices[3 * i + 1];
ifcItem.verticesForWireFrame[3 * i + 2] = pVertices[3 * i + 2];
i++;
}
;
ifcItem.noPrimitivesForWireFrame = 0;
ifcItem.indicesForWireFrameLineParts = new int[2 * noIndices.ToInt32()];
int faceCnt = _ifcEngine.GetConceptualFaceCount(ifcItem.ifcID).ToInt32();
for (int j = 0; j < faceCnt; j++)
{
IntPtr startIndexFacesPolygons = IntPtr.Zero, noIndicesFacesPolygons = IntPtr.Zero, nonValue = IntPtr.Zero, nonValue1 = IntPtr.Zero, nonValue2 = IntPtr.Zero;
_ifcEngine.GetConceptualFaceEx(ifcItem.ifcID, new IntPtr(j), ref nonValue, ref nonValue, ref nonValue, ref nonValue, ref nonValue, ref nonValue1, ref startIndexFacesPolygons, ref noIndicesFacesPolygons, ref nonValue2, ref nonValue2);
i = 0;
int lastItem = -1;
while (i < noIndicesFacesPolygons.ToInt32())
{
if (lastItem >= 0 && ifcItem.indicesForWireFrame[startIndexFacesPolygons.ToInt32() + i] >= 0)
{
ifcItem.indicesForWireFrameLineParts[2 * ifcItem.noPrimitivesForWireFrame + 0] = lastItem;
ifcItem.indicesForWireFrameLineParts[2 * ifcItem.noPrimitivesForWireFrame + 1] = ifcItem.indicesForWireFrame[startIndexFacesPolygons.ToInt32() + i];
ifcItem.noPrimitivesForWireFrame++;
}
lastItem = ifcItem.indicesForWireFrame[startIndexFacesPolygons.ToInt32() + i];
i++;
}
}
}
}
}
public void Reset()
{
_meshToIfcItems.Clear();
_hoverIfcItem = null;
_selectedIfcItem = null;
_minCorner = new float[3] {
float.MaxValue, float.MaxValue, float.MaxValue
};
_maxCorner = new float[3] {
float.MinValue, float.MinValue, float.MinValue
};
}
private void CreateFaceModels(IFCItem item, Vector3D center)
{
while (item != null)
{
if (item.ifcID != IntPtr.Zero && item.noVerticesForFaces != 0 && item.noPrimitivesForFaces != 0)
{
var positions = new Point3DCollection();
var normals = new Vector3DCollection();
if (item.verticesForFaces != null)
{
for (int i = 0; i < item.noVerticesForFaces; i++)
{
var point = new Point3D(item.verticesForFaces[6 * i + 0] - center.X, item.verticesForFaces[6 * i + 1] - center.Y, item.verticesForFaces[6 * i + 2] - center.Z);
var normal = new Vector3D(item.verticesForFaces[6 * i + 3], item.verticesForFaces[6 * i + 4], item.verticesForFaces[6 * i + 5]);
positions.Add(point);
normals.Add(normal);
}
Debug.Assert(item.verticesForFaces.Length == item.noVerticesForFaces * 6);
}
var indices = new Int32Collection();
if (item.indicesForFaces != null)
{
for (int i = 0; i < 3 * item.noPrimitivesForFaces; i++)
{
indices.Add(item.indicesForFaces[i]);
}
}
MeshGeometry3D meshGeometry = new MeshGeometry3D();
meshGeometry.Positions = positions;
meshGeometry.Normals = normals;
meshGeometry.TriangleIndices = indices;
MeshGeometryVisual3D mesh = new MeshGeometryVisual3D();
mesh.MeshGeometry = meshGeometry;
item.Mesh3d = mesh;
_meshToIfcItems[mesh] = item;
#if DEBUG
OutputObj(item.ifcID.ToString(), meshGeometry);
#endif
FillMeshByIfcColor(item);
hVp3D.Children.Add(mesh);
}
CreateFaceModels(item.child, center);
item = item.next;
}
}
public bool OpenIFCFile(string ifcFilePath)
{
_rootIfcItem = null;
Reset();
if (ParseIfcFile(ifcFilePath) == true)
{
InitModel();
Redraw();
return(true);
}
return(false);
}
private void FillMeshByIfcColor(IFCItem item)
{
if (item.Mesh3d != null)
{
if (item.ifcTreeItem.ifcColor != null)
{
var ifcColor = item.ifcTreeItem.ifcColor;
var color = Color.FromArgb((byte)(255 - ifcColor.A * 255),
(byte)(ifcColor.R * 255), (byte)(ifcColor.G * 255), (byte)(ifcColor.B * 255));
item.Mesh3d.Fill = new SolidColorBrush(color);
}
else
{
item.Mesh3d.Fill = _defaultBrush;
}
}
}
void GenerateGeometry(IntPtr ifcModel, IFCItem ifcItem, ref int a)
{
while (ifcItem != null)
{
// Generate WireFrames Geometry
IfcEngine.Setting setting = IfcEngine.Setting.Default;
IfcEngine.Mask mask = IfcEngine.Mask.Default;
mask |= IfcEngine.Mask.DoublePrecision; // PRECISION (32/64 bit)
mask |= IfcEngine.Mask.UseIndex64; // INDEX ARRAY (32/64 bit)
mask |= IfcEngine.Mask.GenNormals; // NORMALS
mask |= IfcEngine.Mask.GenTriangles; // TRIANGLES
mask |= IfcEngine.Mask.GenWireFrame; // WIREFRAME
// if (IntPtr.Size == 8) {
// setting |= IfcEngine.Setting.UseIndex64; // 64 BIT INDEX ARRAY (Int64)
// }
setting |= IfcEngine.Setting.GenWireframe; // WIREFRAME ON
_ifcEngine.SetFormat(ifcModel, setting, mask);
GenerateWireFrameGeometry(ifcModel, ifcItem);
// Generate Faces Geometry
setting = IfcEngine.Setting.Default;
// if (IntPtr.Size == 8) {
// setting |= IfcEngine.Setting.UseIndex64; // 64 BIT INDEX ARRAY (Int64)
// }
setting |= IfcEngine.Setting.GenNormals; // NORMALS ON
setting |= IfcEngine.Setting.GenTriangles; // TRIANGLES ON
_ifcEngine.SetFormat(ifcModel, setting, mask);
GenerateFacesGeometry(ifcModel, ifcItem);
_ifcEngine.CleanMemory(ifcModel);
GenerateGeometry(ifcModel, ifcItem.child, ref a);
ifcItem = ifcItem.next;
}
}
private void OnModelHovered(Visual3D model)
{
if (_hoverIfcItem != null)
{
FillMeshByIfcColor(_hoverIfcItem);
_hoverIfcItem = null;
}
if (model != null)
{
var mesh = (model as MeshGeometryVisual3D);
if (mesh != null && _meshToIfcItems.ContainsKey(mesh))
{
mesh.Fill = _hoverBrush;
_hoverIfcItem = _meshToIfcItems[mesh];
}
}
Redraw();
}
private void CreateWireFrameModels(IFCItem item, Vector3D center)
{
while (item != null)
{
if (item.ifcID != IntPtr.Zero && item.noVerticesForWireFrame != 0 && item.noPrimitivesForWireFrame != 0)
{
var points = new Point3DCollection();
Point3DCollection positions;
if (item.verticesForWireFrame != null)
{
for (int i = 0; i < item.noVerticesForWireFrame; i++)
{
points.Add(new Point3D((item.verticesForWireFrame[3 * i + 0] - center.X), (item.verticesForWireFrame[3 * i + 1] - center.Y), (item.verticesForWireFrame[3 * i + 2] - center.Z)));
}
}
if (item.indicesForWireFrameLineParts != null)
{
positions = new Point3DCollection();
for (int i = 0; i < item.noPrimitivesForWireFrame; i++)
{
var idx = item.indicesForWireFrameLineParts[2 * i + 0];
positions.Add(points[idx]);
idx = item.indicesForWireFrameLineParts[2 * i + 1];
positions.Add(points[idx]);
}
}
else
{
positions = points;
}
LinesVisual3D wireframe = new LinesVisual3D();
wireframe.Points = positions;
wireframe.Color = _defaultLineColor;
item.Wireframe = wireframe;
hVp3D.Children.Add(wireframe);
}
CreateFaceModels(item.child, center);
item = item.next;
}
}
private void GenerateFacesGeometry(IntPtr ifcModel, IFCItem ifcItem)
{
if (ifcItem.ifcID != IntPtr.Zero)
{
IntPtr noVertices = IntPtr.Zero, noIndices = IntPtr.Zero;
_ifcEngine.InitializeModellingInstance(ifcModel, ref noVertices, ref noIndices, 0, ifcItem.ifcID);
if (noVertices != IntPtr.Zero && noIndices != IntPtr.Zero)
{
ifcItem.noVerticesForFaces = noVertices.ToInt32();
ifcItem.noPrimitivesForFaces = noIndices.ToInt32() / 3;
ifcItem.verticesForFaces = new float[6 * noVertices.ToInt32()];
ifcItem.indicesForFaces = new int[noIndices.ToInt32()];
float[] pVertices = new float[noVertices.ToInt32() * 6];
_ifcEngine.FinalizeModelling(ifcModel, pVertices, ifcItem.indicesForFaces, IntPtr.Zero);
int i = 0;
while (i < noVertices.ToInt32())
{
ifcItem.verticesForFaces[6 * i + 0] = pVertices[6 * i + 0];
ifcItem.verticesForFaces[6 * i + 1] = pVertices[6 * i + 1];
ifcItem.verticesForFaces[6 * i + 2] = pVertices[6 * i + 2];
ifcItem.verticesForFaces[6 * i + 3] = pVertices[6 * i + 3];
ifcItem.verticesForFaces[6 * i + 4] = pVertices[6 * i + 4];
ifcItem.verticesForFaces[6 * i + 5] = pVertices[6 * i + 5];
for (int j = 0; j < 3; j++)
{
_minCorner[j] = Math.Min(_minCorner[j], pVertices[6 * i + j]);
_maxCorner[j] = Math.Max(_maxCorner[j], pVertices[6 * i + j]);
}
i++;
}
}
}
}
private void OnModelSelected(Visual3D model)
{
if (_selectedIfcItem != null)
{
FillMeshByIfcColor(_selectedIfcItem);
_selectedIfcItem = null;
}
if (model != null)
{
var mesh = (model as MeshGeometryVisual3D);
if (mesh != null && _meshToIfcItems.ContainsKey(mesh))
{
mesh.Fill = _selectBrush;
_selectedIfcItem = _meshToIfcItems[mesh];
_selectedIfcItem.ifcTreeItem.treeNode.TreeView.SelectedNode = _selectedIfcItem.ifcTreeItem.treeNode;
_selectedIfcItem.ifcTreeItem.treeNode.TreeView.Focus();
//_selectedIfcItem.ifcTreeItem.treeNode.Expand();
_selectedIfcItem.ifcTreeItem.treeNode.EnsureVisible();
}
}
Redraw();
}
public void CreateItem(IFCItem parent, IntPtr ifcID, string ifcType, string globalID, string name, string desc)
{
this.parent = parent;
this.next = null;
this.child = null;
this.globalID = globalID;
this.ifcID = ifcID;
this.ifcType = ifcType;
this.description = desc;
this.name = name;
if (parent != null)
{
if (parent.child == null)
{
parent.child = this;
}
else
{
IFCItem NextChild = parent;
while (true)
{
if (NextChild.next == null)
{
NextChild.next = this;
break;
}
else
{
NextChild = NextChild.next;
}
}
}
}
}
public void Reset()
{
_meshToIfcItems.Clear();
_hoverIfcItem = null;
_selectedIfcItem = null;
_minCorner = new float[3] { float.MaxValue, float.MaxValue, float.MaxValue };
_maxCorner = new float[3] { float.MinValue, float.MinValue, float.MinValue };
}
private void RetrieveObjects(IntPtr ifcModel, string sObjectSPFFName, string ObjectDisplayName)
{
IntPtr ifcObjectInstances = _ifcEngine.GetEntityExtent(ifcModel, ObjectDisplayName),
noIfcObjectIntances = _ifcEngine.GetMemberCount(ifcObjectInstances);
if (noIfcObjectIntances != IntPtr.Zero)
{
IFCItem NewItem = null;
if (_rootIfcItem == null)
{
_rootIfcItem = new IFCItem();
_rootIfcItem.CreateItem(null, IntPtr.Zero, "", ObjectDisplayName, "", "");
NewItem = _rootIfcItem;
}
else
{
IFCItem LastItem = _rootIfcItem;
while (LastItem != null)
{
if (LastItem.next == null)
{
LastItem.next = new IFCItem();
LastItem.next.CreateItem(null, IntPtr.Zero, "", ObjectDisplayName, "", "");
NewItem = LastItem.next;
break;
}
else
{
LastItem = LastItem.next;
}
}
;
}
for (int i = 0; i < noIfcObjectIntances.ToInt32(); ++i)
{
IntPtr ifcObjectIns = IntPtr.Zero;
_ifcEngine.GetAggregationElement(ifcObjectInstances, i, IfcEngine.SdaiType.Instance, out ifcObjectIns);
IntPtr value = IntPtr.Zero;
_ifcEngine.GetAttribute(ifcObjectIns, "GlobalId", IfcEngine.SdaiType.Unicode, out value);
string globalID = Marshal.PtrToStringUni((IntPtr)value);
value = IntPtr.Zero;
_ifcEngine.GetAttribute(ifcObjectIns, "Name", IfcEngine.SdaiType.Unicode, out value);
string name = Marshal.PtrToStringUni((IntPtr)value);
value = IntPtr.Zero;
_ifcEngine.GetAttribute(ifcObjectIns, "Description", IfcEngine.SdaiType.Unicode, out value);
string description = Marshal.PtrToStringUni((IntPtr)value);
IFCItem subItem = new IFCItem();
subItem.CreateItem(NewItem, ifcObjectIns, ObjectDisplayName, globalID, name, description);
}
}
}
private void GenerateWireFrameGeometry(IntPtr ifcModel, IFCItem ifcItem)
{
if (ifcItem.ifcID != IntPtr.Zero) {
IntPtr noVertices = IntPtr.Zero, noIndices = IntPtr.Zero;
_ifcEngine.InitializeModellingInstance(ifcModel, ref noVertices, ref noIndices, 0, ifcItem.ifcID);
if (noVertices != IntPtr.Zero && noIndices != IntPtr.Zero) {
ifcItem.noVerticesForWireFrame = noVertices.ToInt32();
ifcItem.verticesForWireFrame = new float[3 * noVertices.ToInt32()];
ifcItem.indicesForWireFrame = new int[noIndices.ToInt32()];
float[] pVertices = new float[noVertices.ToInt32() * 3];
_ifcEngine.FinalizeModelling(ifcModel, pVertices, ifcItem.indicesForWireFrame, IntPtr.Zero);
int i = 0;
while (i < noVertices.ToInt32()) {
ifcItem.verticesForWireFrame[3 * i + 0] = pVertices[3 * i + 0];
ifcItem.verticesForWireFrame[3 * i + 1] = pVertices[3 * i + 1];
ifcItem.verticesForWireFrame[3 * i + 2] = pVertices[3 * i + 2];
i++;
};
ifcItem.noPrimitivesForWireFrame = 0;
ifcItem.indicesForWireFrameLineParts = new int[2 * noIndices.ToInt32()];
int faceCnt = _ifcEngine.GetConceptualFaceCount(ifcItem.ifcID).ToInt32();
for (int j = 0; j < faceCnt; j++) {
IntPtr startIndexFacesPolygons = IntPtr.Zero, noIndicesFacesPolygons = IntPtr.Zero, nonValue = IntPtr.Zero, nonValue1 = IntPtr.Zero, nonValue2 = IntPtr.Zero;
_ifcEngine.GetConceptualFaceEx(ifcItem.ifcID, new IntPtr(j), ref nonValue, ref nonValue, ref nonValue, ref nonValue, ref nonValue, ref nonValue1, ref startIndexFacesPolygons, ref noIndicesFacesPolygons, ref nonValue2, ref nonValue2);
i = 0;
int lastItem = -1;
while (i < noIndicesFacesPolygons.ToInt32()) {
if (lastItem >= 0 && ifcItem.indicesForWireFrame[startIndexFacesPolygons.ToInt32() + i] >= 0) {
ifcItem.indicesForWireFrameLineParts[2 * ifcItem.noPrimitivesForWireFrame + 0] = lastItem;
ifcItem.indicesForWireFrameLineParts[2 * ifcItem.noPrimitivesForWireFrame + 1] = ifcItem.indicesForWireFrame[startIndexFacesPolygons.ToInt32() + i];
ifcItem.noPrimitivesForWireFrame++;
}
lastItem = ifcItem.indicesForWireFrame[startIndexFacesPolygons.ToInt32() + i];
i++;
}
}
}
}
}
private void OnModelHovered(Visual3D model)
{
if (_hoverIfcItem != null) {
FillMeshByIfcColor(_hoverIfcItem);
_hoverIfcItem = null;
}
if (model != null) {
var mesh = (model as MeshGeometryVisual3D);
if (mesh != null && _meshToIfcItems.ContainsKey(mesh)) {
mesh.Fill = _hoverBrush;
_hoverIfcItem = _meshToIfcItems[mesh];
}
}
Redraw();
}
public void SelectItem(IFCItem ifcItem)
{
if (ifcItem != null && ifcItem.Mesh3d != null) {
OnModelSelected(ifcItem.Mesh3d);
}
this.Redraw();
}
void GenerateGeometry(IntPtr ifcModel, IFCItem ifcItem, ref int a)
{
while (ifcItem != null) {
// Generate WireFrames Geometry
IfcEngine.Setting setting = IfcEngine.Setting.Default;
IfcEngine.Mask mask = IfcEngine.Mask.Default;
mask |= IfcEngine.Mask.DoublePrecision; // PRECISION (32/64 bit)
mask |= IfcEngine.Mask.UseIndex64; // INDEX ARRAY (32/64 bit)
mask |= IfcEngine.Mask.GenNormals; // NORMALS
mask |= IfcEngine.Mask.GenTriangles; // TRIANGLES
mask |= IfcEngine.Mask.GenWireFrame; // WIREFRAME
// if (IntPtr.Size == 8) {
// setting |= IfcEngine.Setting.UseIndex64; // 64 BIT INDEX ARRAY (Int64)
// }
setting |= IfcEngine.Setting.GenWireframe; // WIREFRAME ON
_ifcEngine.SetFormat(ifcModel, setting, mask);
GenerateWireFrameGeometry(ifcModel, ifcItem);
// Generate Faces Geometry
setting = IfcEngine.Setting.Default;
// if (IntPtr.Size == 8) {
// setting |= IfcEngine.Setting.UseIndex64; // 64 BIT INDEX ARRAY (Int64)
// }
setting |= IfcEngine.Setting.GenNormals; // NORMALS ON
setting |= IfcEngine.Setting.GenTriangles; // TRIANGLES ON
_ifcEngine.SetFormat(ifcModel, setting, mask);
GenerateFacesGeometry(ifcModel, ifcItem);
_ifcEngine.CleanMemory(ifcModel);
GenerateGeometry(ifcModel, ifcItem.child, ref a);
ifcItem = ifcItem.next;
}
}
private void OnModelSelected(Visual3D model)
{
if (_selectedIfcItem != null) {
FillMeshByIfcColor(_selectedIfcItem);
_selectedIfcItem = null;
}
if (model != null) {
var mesh = (model as MeshGeometryVisual3D);
if (mesh != null && _meshToIfcItems.ContainsKey(mesh)) {
mesh.Fill = _selectBrush;
_selectedIfcItem = _meshToIfcItems[mesh];
_selectedIfcItem.ifcTreeItem.treeNode.TreeView.SelectedNode = _selectedIfcItem.ifcTreeItem.treeNode;
_selectedIfcItem.ifcTreeItem.treeNode.TreeView.Focus();
//_selectedIfcItem.ifcTreeItem.treeNode.Expand();
_selectedIfcItem.ifcTreeItem.treeNode.EnsureVisible();
}
}
Redraw();
}
private void FillMeshByIfcColor(IFCItem item)
{
if (item.Mesh3d != null) {
if (item.ifcTreeItem.ifcColor != null) {
var ifcColor = item.ifcTreeItem.ifcColor;
var color = Color.FromArgb((byte)(255 - ifcColor.A * 255),
(byte)(ifcColor.R * 255), (byte)(ifcColor.G * 255), (byte)(ifcColor.B * 255));
item.Mesh3d.Fill = new SolidColorBrush(color);
} else {
item.Mesh3d.Fill = _defaultBrush;
}
}
}
private void RetrieveObjects(IntPtr ifcModel, string sObjectSPFFName, string ObjectDisplayName)
{
IntPtr ifcObjectInstances = _ifcEngine.GetEntityExtent(ifcModel, ObjectDisplayName),
noIfcObjectIntances = _ifcEngine.GetMemberCount(ifcObjectInstances);
if (noIfcObjectIntances != IntPtr.Zero) {
IFCItem NewItem = null;
if (_rootIfcItem == null) {
_rootIfcItem = new IFCItem();
_rootIfcItem.CreateItem(null, IntPtr.Zero, "", ObjectDisplayName, "", "");
NewItem = _rootIfcItem;
} else {
IFCItem LastItem = _rootIfcItem;
while (LastItem != null) {
if (LastItem.next == null) {
LastItem.next = new IFCItem();
LastItem.next.CreateItem(null, IntPtr.Zero, "", ObjectDisplayName, "", "");
NewItem = LastItem.next;
break;
} else
LastItem = LastItem.next;
};
}
for (int i = 0; i < noIfcObjectIntances.ToInt32(); ++i) {
IntPtr ifcObjectIns = IntPtr.Zero;
_ifcEngine.GetAggregationElement(ifcObjectInstances, i, IfcEngine.SdaiType.Instance, out ifcObjectIns);
IntPtr value = IntPtr.Zero;
_ifcEngine.GetAttribute(ifcObjectIns, "GlobalId", IfcEngine.SdaiType.Unicode, out value);
string globalID = Marshal.PtrToStringUni((IntPtr)value);
value = IntPtr.Zero;
_ifcEngine.GetAttribute(ifcObjectIns, "Name", IfcEngine.SdaiType.Unicode, out value);
string name = Marshal.PtrToStringUni((IntPtr)value);
value = IntPtr.Zero;
_ifcEngine.GetAttribute(ifcObjectIns, "Description", IfcEngine.SdaiType.Unicode, out value);
string description = Marshal.PtrToStringUni((IntPtr)value);
IFCItem subItem = new IFCItem();
subItem.CreateItem(NewItem, ifcObjectIns, ObjectDisplayName, globalID, name, description);
}
}
}
/// <summary>
/// Helper
/// </summary>
/// <param name="ifcItem"></param>
public void OnSelectIFCElement(IFCItem ifcItem)
{
System.Diagnostics.Debug.Assert(ifcItem != null, "Internal error.");
System.Diagnostics.Debug.Assert(ifcItem.ifcTreeItem != null, "Internal error.");
System.Diagnostics.Debug.Assert(ifcItem.ifcTreeItem.treeNode != null, "Internal error.");
_treeControl.SelectedNode = ifcItem.ifcTreeItem.treeNode;
}
private void CreateWireFrameModels(IFCItem item, Vector3D center)
{
while (item != null) {
if (item.ifcID != IntPtr.Zero && item.noVerticesForWireFrame != 0 && item.noPrimitivesForWireFrame != 0) {
var points = new Point3DCollection();
Point3DCollection positions;
if (item.verticesForWireFrame != null) {
for (int i = 0; i < item.noVerticesForWireFrame; i++) {
points.Add(new Point3D((item.verticesForWireFrame[3 * i + 0] - center.X), (item.verticesForWireFrame[3 * i + 1] - center.Y), (item.verticesForWireFrame[3 * i + 2] - center.Z)));
}
}
if (item.indicesForWireFrameLineParts != null) {
positions = new Point3DCollection();
for (int i = 0; i < item.noPrimitivesForWireFrame; i++) {
var idx = item.indicesForWireFrameLineParts[2 * i + 0];
positions.Add(points[idx]);
idx = item.indicesForWireFrameLineParts[2 * i + 1];
positions.Add(points[idx]);
}
} else {
positions = points;
}
LinesVisual3D wireframe = new LinesVisual3D();
wireframe.Points = positions;
wireframe.Color = _defaultLineColor;
item.Wireframe = wireframe;
hVp3D.Children.Add(wireframe);
}
CreateFaceModels(item.child, center);
item = item.next;
}
}
private void CreateFaceModels(IFCItem item, Vector3D center)
{
while (item != null) {
if (item.ifcID != IntPtr.Zero && item.noVerticesForFaces != 0 && item.noPrimitivesForFaces != 0) {
var positions = new Point3DCollection();
var normals = new Vector3DCollection();
if (item.verticesForFaces != null) {
for (int i = 0; i < item.noVerticesForFaces; i++) {
var point = new Point3D(item.verticesForFaces[6 * i + 0] - center.X, item.verticesForFaces[6 * i + 1] - center.Y, item.verticesForFaces[6 * i + 2] - center.Z);
var normal = new Vector3D(item.verticesForFaces[6 * i + 3], item.verticesForFaces[6 * i + 4], item.verticesForFaces[6 * i + 5]);
positions.Add(point);
normals.Add(normal);
}
Debug.Assert(item.verticesForFaces.Length == item.noVerticesForFaces * 6);
}
var indices = new Int32Collection();
if (item.indicesForFaces != null) {
for (int i = 0; i < 3 * item.noPrimitivesForFaces; i++) {
indices.Add(item.indicesForFaces[i]);
}
}
MeshGeometry3D meshGeometry = new MeshGeometry3D();
meshGeometry.Positions = positions;
meshGeometry.Normals = normals;
meshGeometry.TriangleIndices = indices;
MeshGeometryVisual3D mesh = new MeshGeometryVisual3D();
mesh.MeshGeometry = meshGeometry;
item.Mesh3d = mesh;
_meshToIfcItems[mesh] = item;
#if DEBUG
OutputObj(item.ifcID.ToString(), meshGeometry);
#endif
FillMeshByIfcColor(item);
hVp3D.Children.Add(mesh);
}
CreateFaceModels(item.child, center);
item = item.next;
}
}
/// <summary>
/// Helper
/// </summary>
/// <param name="ifcTreeItem"></param>
private IFCItem FindIFCItem(IFCItem ifcParent, IFCTreeItem ifcTreeItem)
{
if (ifcParent == null) {
return null;
}
IFCItem ifcIterator = ifcParent;
while (ifcIterator != null) {
if (ifcIterator.ifcID == ifcTreeItem.instance) {
return ifcIterator;
}
IFCItem ifcItem = FindIFCItem(ifcIterator.child, ifcTreeItem);
if (ifcItem != null) {
return ifcItem;
}
ifcIterator = ifcIterator.next;
}
return FindIFCItem(ifcParent.child, ifcTreeItem);
}
private void GenerateFacesGeometry(IntPtr ifcModel, IFCItem ifcItem)
{
if (ifcItem.ifcID != IntPtr.Zero) {
IntPtr noVertices = IntPtr.Zero, noIndices = IntPtr.Zero;
_ifcEngine.InitializeModellingInstance(ifcModel, ref noVertices, ref noIndices, 0, ifcItem.ifcID);
if (noVertices != IntPtr.Zero && noIndices != IntPtr.Zero) {
ifcItem.noVerticesForFaces = noVertices.ToInt32();
ifcItem.noPrimitivesForFaces = noIndices.ToInt32() / 3;
ifcItem.verticesForFaces = new float[6 * noVertices.ToInt32()];
ifcItem.indicesForFaces = new int[noIndices.ToInt32()];
float[] pVertices = new float[noVertices.ToInt32() * 6];
_ifcEngine.FinalizeModelling(ifcModel, pVertices, ifcItem.indicesForFaces, IntPtr.Zero);
int i = 0;
while (i < noVertices.ToInt32()) {
ifcItem.verticesForFaces[6 * i + 0] = pVertices[6 * i + 0];
ifcItem.verticesForFaces[6 * i + 1] = pVertices[6 * i + 1];
ifcItem.verticesForFaces[6 * i + 2] = pVertices[6 * i + 2];
ifcItem.verticesForFaces[6 * i + 3] = pVertices[6 * i + 3];
ifcItem.verticesForFaces[6 * i + 4] = pVertices[6 * i + 4];
ifcItem.verticesForFaces[6 * i + 5] = pVertices[6 * i + 5];
for (int j = 0; j < 3; j++) {
_minCorner[j] = Math.Min(_minCorner[j], pVertices[6 * i + j]);
_maxCorner[j] = Math.Max(_maxCorner[j], pVertices[6 * i + j]);
}
i++;
}
}
}
}
/// <summary>
/// Helper
/// </summary>
/// <param name="ifcTreeItem"></param>
private void FindNonReferencedIFCItems(IFCItem ifcParent, TreeNode tnNotReferenced)
{
if (ifcParent == null) {
return;
}
IFCItem ifcIterator = ifcParent;
while (ifcIterator != null) {
if ((ifcIterator.ifcTreeItem == null) && (ifcIterator.ifcID != IntPtr.Zero)) {
string strItemText = "'" + (string.IsNullOrEmpty(ifcIterator.name) ? "<name>" : ifcIterator.name) +
"' = '" + (string.IsNullOrEmpty(ifcIterator.description) ? "<description>" : ifcIterator.description) +
"' (" + (string.IsNullOrEmpty(ifcIterator.ifcType) ? ifcIterator.globalID : ifcIterator.ifcType) + ")";
IFCTreeItem ifcTreeItem = new IFCTreeItem();
ifcTreeItem.instance = ifcIterator.ifcID;
ifcTreeItem.treeNode = tnNotReferenced.Nodes.Add(strItemText);
ifcTreeItem.ifcItem = FindIFCItem(_ifcRoot, ifcTreeItem);
ifcIterator.ifcTreeItem = ifcTreeItem;
ifcTreeItem.treeNode.Tag = ifcTreeItem;
if (ifcTreeItem.ifcItem != null) {
ifcTreeItem.ifcItem.ifcTreeItem = ifcTreeItem;
ifcTreeItem.treeNode.ImageIndex = ifcTreeItem.treeNode.SelectedImageIndex = IMAGE_CHECKED;
} else {
ifcTreeItem.treeNode.ImageIndex = ifcTreeItem.treeNode.SelectedImageIndex = IMAGE_NOT_REFERENCED;
}
}
FindNonReferencedIFCItems(ifcIterator.child, tnNotReferenced);
ifcIterator = ifcIterator.next;
}
FindNonReferencedIFCItems(ifcParent.child, tnNotReferenced);
}
public bool OpenIFCFile(string ifcFilePath)
{
_rootIfcItem = null;
Reset();
if (ParseIfcFile(ifcFilePath) == true) {
InitModel();
Redraw();
return true;
}
return false;
}