private static XbimShapeTriangulation GetMeshes(Xbim3DModelContext context, IIfcProduct product)
{
XbimShapeTriangulation ifcMesh = null;;
var productShape =
context.ShapeInstancesOf(product)
.Where(p => p.RepresentationType != XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.Distinct();
if (productShape.Any())
{
var shapeInstance = productShape.FirstOrDefault();
var shapeGeometry = context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
byte[] data = ((IXbimShapeGeometryData)shapeGeometry).ShapeData;
//If you want to get all the faces and triangulation use this
using (var stream = new MemoryStream(data))
{
using (var reader = new BinaryReader(stream))
{
ifcMesh = reader.ReadShapeTriangulation();
}
}
}
return(ifcMesh);
}
/***************************************************/
/**** Public Methods ****/
/***************************************************/
public static List <Mesh> Meshes(this XbimShapeInstance instance, Xbim3DModelContext context)
{
if (instance == null)
{
BH.Engine.Reflection.Compute.RecordError("The meshes could not be extracted because the IFC element is null.");
return(null);
}
if (context == null)
{
BH.Engine.Reflection.Compute.RecordError("The meshes could not be extracted because the 3D model context is null.");
return(null);
}
List <Mesh> result;
//Instance's geometry
XbimShapeGeometry geometry = context.ShapeGeometry(instance);
byte[] data = ((IXbimShapeGeometryData)geometry).ShapeData;
//If you want to get all the faces and trinagulation use this
using (var stream = new MemoryStream(data))
{
using (var reader = new BinaryReader(stream))
{
XbimShapeTriangulation shape = reader.ReadShapeTriangulation();
result = shape.Meshes();
}
}
TransformMatrix transform = instance.Transformation.TransformMatrixFromIfc();
return(result.Select(x => x.Transform(transform)).ToList());
}
public static void AddElements(this MeshGeometry3D m, IPersistIfcEntity item, XbimMatrix3D wcsTransform)
{
var fromModel = item.ModelOf as XbimModel;
if (fromModel == null || !(item is IfcProduct))
{
return;
}
switch (fromModel.GeometrySupportLevel)
{
case 2:
var context = new Xbim3DModelContext(fromModel);
var productShape = context.ShapeInstancesOf((IfcProduct)item)
.Where(s => s.RepresentationType != XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.ToList();
if (!productShape.Any() && item is IfcFeatureElement)
{
productShape = context.ShapeInstancesOf((IfcProduct)item)
.Where(
s => s.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.ToList();
}
if (!productShape.Any())
{
return;
}
foreach (var shapeInstance in productShape)
{
IXbimShapeGeometryData shapeGeom =
context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
switch ((XbimGeometryType)shapeGeom.Format)
{
case XbimGeometryType.PolyhedronBinary:
m.Read(shapeGeom.ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
case XbimGeometryType.Polyhedron:
m.Read(((XbimShapeGeometry)shapeGeom).ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
}
}
break;
case 1:
var xm3d = new XbimMeshGeometry3D();
var geomDataSet = fromModel.GetGeometryData(item.EntityLabel, XbimGeometryType.TriangulatedMesh);
foreach (var geomData in geomDataSet)
{
var gd = geomData.TransformBy(wcsTransform);
xm3d.Add(gd);
}
m.Add(xm3d);
break;
}
}
private static void getgeometry(XbimShapeInstance shape, Xbim3DModelContext m_context, int entityLabel, int number_of_shapes)
{
XbimShapeTriangulation mesh = null;
var geometry = m_context.ShapeGeometry(shape);
Console.WriteLine($"{"\n"}{GetIndent(11)}{"--Geometry Type: " + geometry.Format}");
var ms = new MemoryStream(((IXbimShapeGeometryData)geometry).ShapeData);
var br = new BinaryReader(ms);
mesh = br.ReadShapeTriangulation();
mesh = mesh.Transform(((XbimShapeInstance)shape).Transformation);
var facesfound = mesh.Faces.ToList();
var number_of_faces = facesfound.Count();
Console.WriteLine($"{"\n"}{GetIndent(11)}{" -----No. of faces on the shape #" + shape.IfcProductLabel + ": " + number_of_faces}");
//used for an ID for each face
int face_index = 0;
//used for the total number of triangles
int number_of_triangles = 0;
//write the Faces element with its count
xmlWriter.WriteStartElement("Faces");
xmlWriter.WriteAttributeString("NumFaces", number_of_faces.ToString());
foreach (XbimFaceTriangulation f in facesfound)
{
number_of_triangles = f.TriangleCount;
Console.WriteLine($"{"\n"}{GetIndent(13)}{" -----Triangle count on face: " + f.GetType() + " :mesh is " + number_of_triangles}");
face_index++;
composetrianglesets(f, mesh, entityLabel, facesfound.Count(), face_index, number_of_triangles, number_of_shapes);
}
//this ends the faces element in the xml file
xmlWriter.WriteEndElement();
//Console.WriteLine($"{"\n"}{GetIndent(13)}{" -----Vertices of the shape: #" + shape.IfcProductLabel}");
//foreach (var v in mesh.Vertices.ToList())
//{
// Console.WriteLine($"{GetIndent(13)}{" --vertex_" + mesh.Vertices.ToList().IndexOf(v) + " : " + Math.Round((double)v.X, 2) + " | " + Math.Round((double)v.Y, 2) + " | " + Math.Round((double)v.Z, 2)}");
//}
Console.WriteLine("\n");
}
public static XbimMeshGeometry3D GetMesh(this XbimModel xbimModel, IEnumerable<IPersistIfcEntity> items, XbimMatrix3D wcsTransform)
{
var m = new XbimMeshGeometry3D();
if (xbimModel.GeometrySupportLevel == 1)
{
// this is what happens for version 1 of the engine
//
foreach (var item in items)
{
var fromModel = item.ModelOf as XbimModel;
if (fromModel == null)
continue;
var geomDataSet = fromModel.GetGeometryData(item.EntityLabel, XbimGeometryType.TriangulatedMesh);
foreach (var geomData in geomDataSet)
{
// todo: add guidance to the TransformBy method so that users can understand how to stop using it (it's marked absolete)
geomData.TransformBy(wcsTransform);
m.Add(geomData); // todo: what is the modelid value to be passed?
}
}
}
else
{
// this is what happens for version 2 of the engine
//
foreach (var item in items)
{
var fromModel = item.ModelOf as XbimModel;
if (fromModel == null || !(item is IfcProduct))
continue;
var context = new Xbim3DModelContext(fromModel);
var productShape =
context.ShapeInstancesOf((IfcProduct) item)
.Where(
s => s.RepresentationType != XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.ToList();
foreach (var shapeInstance in productShape)
{
IXbimShapeGeometryData shapeGeom = context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
switch ((XbimGeometryType) shapeGeom.Format)
{
case XbimGeometryType.PolyhedronBinary:
m.Read(shapeGeom.ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
case XbimGeometryType.Polyhedron:
m.Read(((XbimShapeGeometry) shapeGeom).ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
}
}
}
}
return m;
}
private static void getgeometry(XbimShapeInstance shape, Xbim3DModelContext m_context, int entityLabel, int number_OF_Walls)
{
XbimShapeTriangulation mesh = null;
var geometry = m_context.ShapeGeometry(shape);
//Console.WriteLine("====" + geometry.GetType());
Console.WriteLine($"{"\n"}{GetIndent(11)}{"--Geometry Type: " + geometry.Format}");
var ms = new MemoryStream(((IXbimShapeGeometryData)geometry).ShapeData);
var br = new BinaryReader(ms);
mesh = br.ReadShapeTriangulation();
mesh = mesh.Transform(((XbimShapeInstance)shape).Transformation);
var facesfound = mesh.Faces.ToList();
Console.WriteLine($"{"\n"}{GetIndent(11)}{" -----No. of faces on the shape #" + shape.IfcProductLabel + ": " + facesfound.Count()}");
int FaceNum = 0;
int Triangle_Count = 0;
//xmlWriter.WriteElementString("Faces", facesfound.Count().ToString());
xmlWriter.WriteStartElement("Faces");
xmlWriter.WriteAttributeString("NumFaces", facesfound.Count().ToString());
foreach (XbimFaceTriangulation f in facesfound)
{
Triangle_Count = f.TriangleCount;
Console.WriteLine($"{"\n"}{GetIndent(13)}{" -----Triangle count on face: " + f.GetType() + " :mesh is " +Triangle_Count}");
//foreach (var fi in f.Indices)
//{
// Console.WriteLine($"{GetIndent(13)}{" -> " + fi}");
//}
FaceNum++;
composetrianglesets(f, mesh, entityLabel, facesfound.Count(), FaceNum, Triangle_Count, number_OF_Walls);
}
//this is for the faces NUmber
xmlWriter.WriteEndElement();
// xmlWriter.WriteWhitespace("\n");
//Console.WriteLine($"{"\n"}{GetIndent(13)}{" -----Vertices of the shape: #" + shape.IfcProductLabel}");
//foreach (var v in mesh.Vertices.ToList())
//{
// Console.WriteLine($"{GetIndent(13)}{" --vertex_" + mesh.Vertices.ToList().IndexOf(v) + " : " + Math.Round((double)v.X, 2) + " | " + Math.Round((double)v.Y, 2) + " | " + Math.Round((double)v.Z, 2)}");
//}
Console.WriteLine("\n");
}
public static void AddElements(this MeshGeometry3D m, IPersistIfcEntity item, XbimMatrix3D wcsTransform)
{
var fromModel = item.ModelOf as XbimModel;
if (fromModel == null || !(item is IfcProduct))
return;
switch (fromModel.GeometrySupportLevel)
{
case 2:
var context = new Xbim3DModelContext(fromModel);
var productShape = context.ShapeInstancesOf((IfcProduct) item)
.Where(s => s.RepresentationType != XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.ToList();
if (!productShape.Any() && item is IfcFeatureElement)
{
productShape = context.ShapeInstancesOf((IfcProduct) item)
.Where(
s => s.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.ToList();
}
if (!productShape.Any())
return;
foreach (var shapeInstance in productShape)
{
IXbimShapeGeometryData shapeGeom =
context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
switch ((XbimGeometryType) shapeGeom.Format)
{
case XbimGeometryType.PolyhedronBinary:
m.Read(shapeGeom.ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
case XbimGeometryType.Polyhedron:
m.Read(((XbimShapeGeometry) shapeGeom).ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
}
}
break;
case 1:
var xm3d = new XbimMeshGeometry3D();
var geomDataSet = fromModel.GetGeometryData(item.EntityLabel, XbimGeometryType.TriangulatedMesh);
foreach (var geomData in geomDataSet)
{
var gd = geomData.TransformBy(wcsTransform);
xm3d.Add(gd);
}
m.Add(xm3d);
break;
}
}
private void GetGeometryData(XbimModel model, IfcProduct product)
{
var context = new Xbim3DModelContext(model);
//TODO: WCS
var metre = model.ModelFactors.OneMetre;
var units = model.IfcProject.UnitsInContext.Units
.Where <IfcSIUnit>(u => u.UnitType == IfcUnitEnum.LENGTHUNIT)
.ToList();
string defaultLengthUnit = "";
if (units.Count > 0)
{
defaultLengthUnit = units.First().GetSymbol();
}
var styles = context.SurfaceStyles().ToList();
var productShape =
context.ShapeInstancesOf(product)
.Where(p => p.RepresentationType != XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.Distinct();
if (productShape.Any())
{
foreach (var shapeInstance in productShape)
{
var shapeGeometry = context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
XbimColour style = XbimColour.Default;
if (shapeInstance.HasStyle)
{
style = styles.First(s => s.DefinedObjectId == shapeInstance.StyleLabel).ColourMap.FirstOrDefault();
}
Console.WriteLine("--Style: {0}", style);
Console.WriteLine("-- x:{0:0.0000} \n-- y:{1:0.0000} \n-- z:{2:0.0000} \n",
shapeGeometry.BoundingBox.Location.X,
shapeGeometry.BoundingBox.Location.Y,
shapeGeometry.BoundingBox.Location.Z);
Console.WriteLine("-- sx:{0:0.0000} {3} \n-- sy:{1:0.0000} {3} \n-- sz:{2:0.0000} {3} \n",
shapeGeometry.BoundingBox.SizeX,
shapeGeometry.BoundingBox.SizeY,
shapeGeometry.BoundingBox.SizeZ,
defaultLengthUnit);
}
}
}
public static MeshGeometry3D WriteTriangles(IIfcProduct ifcElement, Xbim3DModelContext context, XbimMatrix3D wcsTransformation)
{
MeshBuilder meshBuilder = new MeshBuilder(false, false);
// var allTriangles = new List<Triangles>();
// foreach (XbimShapeInstance instance in context.ShapeInstancesOf(ifcElement).Where(x => x.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsIncluded))
foreach (XbimShapeInstance instance in context.ShapeInstancesOf(ifcElement).Where(x => x.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsIncluded))
{
XbimShapeGeometry geometry = context.ShapeGeometry(instance);
var data = ((IXbimShapeGeometryData)geometry).ShapeData;
using (var stream = new MemoryStream(data))
{
using (var reader = new BinaryReader(stream))
{
XbimShapeTriangulation mesh = reader.ReadShapeTriangulation();
mesh = mesh.Transform(instance.Transformation);
// WCS transforms
mesh = mesh.Transform(wcsTransformation);
foreach (XbimFaceTriangulation face in mesh.Faces)
{
var j = 0;
for (var i = 0; i < face.TriangleCount; i++)
{
int k = i + j;
var point1 = new Point3D {
X = mesh.Vertices[face.Indices[k]].X, Y = mesh.Vertices[face.Indices[k]].Y, Z = mesh.Vertices[face.Indices[k]].Z
};
j++;
k = i + j;
var point2 = new Point3D {
X = mesh.Vertices[face.Indices[k]].X, Y = mesh.Vertices[face.Indices[k]].Y, Z = mesh.Vertices[face.Indices[k]].Z
};
j++;
k = i + j;
var point3 = new Point3D {
X = mesh.Vertices[face.Indices[k]].X, Y = mesh.Vertices[face.Indices[k]].Y, Z = mesh.Vertices[face.Indices[k]].Z
};
meshBuilder.AddTriangle(point1, point2, point3);
}
}
}
}
}
return(meshBuilder.ToMesh());
// return allTriangles;
}
public void GetGeometryFromXbimModel_IFC4(MeshGeometry3D m, IPersistEntity item, XbimMatrix3D wcsTransform)
{
if (item.Model == null || !(item is Xbim.Ifc4.Kernel.IfcProduct))
{
return;
}
var context = new Xbim3DModelContext(item.Model);
var productShape = context.ShapeInstancesOf((Xbim.Ifc4.Interfaces.IIfcProduct)item)
.Where(s => s.RepresentationType != XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.ToList();
if (!productShape.Any() && item is Xbim.Ifc4.Interfaces.IIfcFeatureElement)
{
productShape = context.ShapeInstancesOf((Xbim.Ifc4.Interfaces.IIfcProduct)item)
.Where(
s => s.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.ToList();
}
if (!productShape.Any())
{
return;
}
foreach (var shapeInstance in productShape)
{
IXbimShapeGeometryData shapeGeom =
context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
switch ((XbimGeometryType)shapeGeom.Format)
{
case XbimGeometryType.PolyhedronBinary:
m.Read(shapeGeom.ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
case XbimGeometryType.Polyhedron:
m.Read(((XbimShapeGeometry)shapeGeom).ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
}
}
}
private static void getgeometry(XbimShapeInstance shape, Xbim3DModelContext m_context)
{
XbimShapeTriangulation mesh = null;
var geometry = m_context.ShapeGeometry(shape);
//Console.WriteLine("====" + geometry.GetType());
Console.WriteLine($"{"\n"}{GetIndent(11)}{"--Geometry Type: " + geometry.Format}");
var ms = new MemoryStream(((IXbimShapeGeometryData)geometry).ShapeData);
var br = new BinaryReader(ms);
mesh = br.ReadShapeTriangulation();
mesh = mesh.Transform(((XbimShapeInstance)shape).Transformation);
var facesfound = mesh.Faces.ToList();
Console.WriteLine($"{"\n"}{GetIndent(11)}{" -----No. of faces on the shape #" + shape.IfcProductLabel + ": " + facesfound.Count()}");
foreach (XbimFaceTriangulation f in facesfound)
{
Console.WriteLine($"{"\n"}{GetIndent(13)}{" -----Triangle count on face: " + f.GetType() + " :mesh is " + f.TriangleCount}");
//foreach (var fi in f.Indices)
//{
// Console.WriteLine($"{GetIndent(13)}{" -> " + fi}");
//}
composetrianglesets(f, mesh);
}
//Console.WriteLine($"{"\n"}{GetIndent(13)}{" -----Vertices of the shape: #" + shape.IfcProductLabel}");
//foreach (var v in mesh.Vertices.ToList())
//{
// Console.WriteLine($"{GetIndent(13)}{" --vertex_" + mesh.Vertices.ToList().IndexOf(v) + " : " + Math.Round((double)v.X, 2) + " | " + Math.Round((double)v.Y, 2) + " | " + Math.Round((double)v.Z, 2)}");
//}
Console.WriteLine("\n");
}
static void Main(string[] args)
{
const string file = @"4walls1floorSite.ifc";
var model = IfcStore.Open(file);
var context = new Xbim3DModelContext(model);
context.CreateContext();
var instances = context.ShapeInstances();
foreach (var instance in instances)
{
var geometry = context.ShapeGeometry(instance);
var data = ((IXbimShapeGeometryData)geometry).ShapeData;
using (var stream = new MemoryStream(data))
{
using (var reader = new BinaryReader(stream))
{
var mesh = reader.ReadShapeTriangulation();
}
}
}
}
public XbimScene <WpfMeshGeometry3D, WpfMaterial> BuildScene(XbimModel model, Xbim3DModelContext context, List <Type> exclude = null)
{
var tmpOpaquesGroup = new Model3DGroup();
var retScene = new XbimScene <WpfMeshGeometry3D, WpfMaterial>(model);
var red = PrepareMesh(new XbimColour("Red", 1.0, 0.0, 0.0, 0.5));
var green = PrepareMesh(new XbimColour("Green", 0.0, 1.0, 0.0, 0.5));
red.WpfModel.SetValue(FrameworkElement.TagProperty, red);
green.WpfModel.SetValue(FrameworkElement.TagProperty, green);
red.BeginUpdate();
green.BeginUpdate();
tmpOpaquesGroup.Children.Add(red);
tmpOpaquesGroup.Children.Add(green);
var i = 0;
foreach (var shapeInstance in context.ShapeInstances()
.Where(s => s.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsIncluded &&
!typeof(IfcFeatureElement).IsAssignableFrom(IfcMetaData.GetType(s.IfcTypeId)) /*&&
* !typeof(IfcSpace).IsAssignableFrom(IfcMetaData.GetType(s.IfcTypeId))*/))
{
IXbimShapeGeometryData shapeGeom = context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
WpfMeshGeometry3D targetMergeMesh;
switch (i++ % 2)
{
case 0:
targetMergeMesh = red;
break;
default:
targetMergeMesh = green;
break;
}
switch ((XbimGeometryType)shapeGeom.Format)
{
case XbimGeometryType.Polyhedron:
var shapePoly = (XbimShapeGeometry)shapeGeom;
targetMergeMesh.Add(
shapePoly.ShapeData,
shapeInstance.IfcTypeId,
shapeInstance.IfcProductLabel,
shapeInstance.InstanceLabel,
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.ModelPositions[model].Transfrom),
model.UserDefinedId);
break;
case XbimGeometryType.PolyhedronBinary:
targetMergeMesh.Add(
shapeGeom.ShapeData,
shapeInstance.IfcTypeId,
shapeInstance.IfcProductLabel,
shapeInstance.InstanceLabel,
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.ModelPositions[model].Transfrom),
model.UserDefinedId
);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
red.EndUpdate();
green.EndUpdate();
var mv = new ModelVisual3D {
Content = tmpOpaquesGroup
};
Control.OpaquesVisual3D.Children.Add(mv);
// Control.ModelBounds = mv.Content.Bounds.ToXbimRect3D();
return(retScene);
}
/// <summary>
/// This version uses the new Geometry representation
/// </summary>
/// <param name="model"></param>
/// <param name="context"></param>
/// <param name="exclude">List of type to exclude, by default excplict openings and spaces are excluded if exclude = null</param>
/// <returns></returns>
public XbimScene<WpfMeshGeometry3D, WpfMaterial> BuildScene(XbimModel model, Xbim3DModelContext context,
List<Type> exclude = null)
{
var scene = new XbimScene<WpfMeshGeometry3D, WpfMaterial>(model);
if (context == null)
return scene;
//get a list of all the unique styles
var styles = new Dictionary<int, WpfMaterial>();
var repeatedShapeGeometries = new Dictionary<int, MeshGeometry3D>();
var styleMeshSets = new Dictionary<int, WpfMeshGeometry3D>();
var tmpOpaquesGroup = new Model3DGroup();
var tmpTransparentsGroup = new Model3DGroup();
var sstyles = context.SurfaceStyles();
foreach (var style in sstyles)
{
var wpfMaterial = new WpfMaterial();
wpfMaterial.CreateMaterial(style);
styles.Add(style.DefinedObjectId, wpfMaterial);
var mg = new WpfMeshGeometry3D(wpfMaterial, wpfMaterial);
mg.WpfModel.SetValue(FrameworkElement.TagProperty, mg);
styleMeshSets.Add(style.DefinedObjectId, mg);
mg.BeginUpdate();
if (style.IsTransparent)
tmpTransparentsGroup.Children.Add(mg);
else
tmpOpaquesGroup.Children.Add(mg);
}
if (!styles.Any()) return scene; //this should always return something
int i = 0;
var shapeInstances = context.ShapeInstances()
.Where(s => s.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsIncluded &&
!typeof (IfcFeatureElement).IsAssignableFrom(IfcMetaData.GetType(s.IfcTypeId)) /*&&
!typeof(IfcSpace).IsAssignableFrom(IfcMetaData.GetType(s.IfcTypeId))*/);
foreach (var shapeInstance in shapeInstances)
{
Console.WriteLine(i++);
var styleId = shapeInstance.StyleLabel > 0 ? shapeInstance.StyleLabel : shapeInstance.IfcTypeId * -1;
//GET THE ACTUAL GEOMETRY
MeshGeometry3D wpfMesh;
//see if we have already read it
if (repeatedShapeGeometries.TryGetValue(shapeInstance.ShapeGeometryLabel, out wpfMesh))
{
var mg = new GeometryModel3D(wpfMesh, styles[styleId]);
mg.SetValue(FrameworkElement.TagProperty,
new XbimInstanceHandle(model, shapeInstance.IfcProductLabel, shapeInstance.IfcTypeId));
mg.BackMaterial = mg.Material;
mg.Transform =
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.WcsTransform).ToMatrixTransform3D();
if (styles[styleId].IsTransparent)
tmpTransparentsGroup.Children.Add(mg);
else
tmpOpaquesGroup.Children.Add(mg);
}
else //we need to get the shape geometry
{
IXbimShapeGeometryData shapeGeom = context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
if (shapeGeom.ReferenceCount > 1) //only store if we are going to use again
{
wpfMesh = new MeshGeometry3D();
switch ((XbimGeometryType)shapeGeom.Format)
{
case XbimGeometryType.PolyhedronBinary:
wpfMesh.Read(shapeGeom.ShapeData);
break;
case XbimGeometryType.Polyhedron:
wpfMesh.Read(((XbimShapeGeometry)shapeGeom).ShapeData);
break;
}
repeatedShapeGeometries.Add(shapeInstance.ShapeGeometryLabel, wpfMesh);
var mg = new GeometryModel3D(wpfMesh, styles[styleId]);
mg.SetValue(FrameworkElement.TagProperty,
new XbimInstanceHandle(model, shapeInstance.IfcProductLabel, shapeInstance.IfcTypeId));
mg.BackMaterial = mg.Material;
mg.Transform =
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.WcsTransform).ToMatrixTransform3D();
if (styles[styleId].IsTransparent)
tmpTransparentsGroup.Children.Add(mg);
else
tmpOpaquesGroup.Children.Add(mg);
}
else //it is a one off, merge it with shapes of a similar material
{
var targetMergeMeshByStyle = styleMeshSets[styleId];
switch ((XbimGeometryType)shapeGeom.Format)
{
case XbimGeometryType.Polyhedron:
var shapePoly = (XbimShapeGeometry)shapeGeom;
targetMergeMeshByStyle.Add(
shapePoly.ShapeData,
shapeInstance.IfcTypeId,
shapeInstance.IfcProductLabel,
shapeInstance.InstanceLabel,
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.WcsTransform));
break;
case XbimGeometryType.PolyhedronBinary:
targetMergeMeshByStyle.Add(
shapeGeom.ShapeData,
shapeInstance.IfcTypeId,
shapeInstance.IfcProductLabel,
shapeInstance.InstanceLabel,
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.WcsTransform));
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
}
foreach (var wpfMeshGeometry3D in styleMeshSets.Values)
{
wpfMeshGeometry3D.EndUpdate();
}
//}
if (tmpOpaquesGroup.Children.Any())
{
var mv = new ModelVisual3D();
mv.Content = tmpOpaquesGroup;
Control.Opaques.Children.Add(mv);
Control.ModelBounds = mv.Content.Bounds.ToXbimRect3D();
}
if (tmpTransparentsGroup.Children.Any())
{
var mv = new ModelVisual3D();
mv.Content = tmpTransparentsGroup;
Control.Transparents.Children.Add(mv);
if (Control.ModelBounds.IsEmpty) Control.ModelBounds = mv.Content.Bounds.ToXbimRect3D();
else Control.ModelBounds.Union(mv.Content.Bounds.ToXbimRect3D());
}
return scene;
}
public static List <Point3D> GetFootPrintNonBREP(IIfcProduct ifcElement, Xbim3DModelContext context)
{
var resultList = new List <Point3D>();
foreach (XbimShapeInstance instance in context.ShapeInstancesOf(ifcElement))
{
// Get the IFC Representation of the Footprint of the instance
XbimShapeGeometry geometry = context.ShapeGeometry(instance);
var data = ((IXbimShapeGeometryData)geometry).ShapeData;
using (var stream = new MemoryStream(data))
{
using (var reader = new BinaryReader(stream))
{
XbimShapeTriangulation mesh = reader.ReadShapeTriangulation();
mesh = mesh.Transform(instance.Transformation);
// find the minimal z coordinate
double minZ = 10000;
foreach (var vertex in mesh.Vertices)
{
if (vertex.Z <= minZ)
{
minZ = vertex.Z;
}
}
List <IVertex> points = new List <IVertex>();
foreach (var vertex in mesh.Vertices)
{
if (vertex.Z != minZ)
{
continue;
}
points.Add(new DefaultVertex {
Position = new[] { vertex.X, vertex.Y }
});
}
if (points.Count <= 2)
{
return(null);
}
// Compute ConvexHull
var cH = ConvexHull.Create(points);
foreach (var item in cH.Points)
{
var point = new Point3D()
{
X = item.Position[0], Y = item.Position[1], Z = minZ
};
bool duplicate = false;
foreach (var result in resultList)
{
if (result == point)
{
duplicate = true;
break;
}
}
if (!duplicate)
{
resultList.Add(point);
}
}
}
}
}
return(resultList);
}
/// <summary>
/// Extract Geometries from IFC file.
/// </summary>
/// <param name="model">IfcStore model.</param>
/// <param name="geometries">Geometries data.</param>
/// <param name="modelBoundingBox">Bounding box of the ifc model.</param>
public static void ExtractGeometries(IfcStore model, ref Dictionary <string, GeometryStore> geometries, ref XbimRect3D modelBoundingBox)
{
// context is used to extract geometry data
var context = new Xbim3DModelContext(model);
var meter = context.Model.ModelFactors.OneMeter;
context.CreateContext();
// start to extract geometry data
var instances = context.ShapeInstances();
XbimColourMap colorMap = new XbimColourMap();
foreach (var instance in instances) // each instance is a mesh
{
MeshStore meshStore = new MeshStore();
// get the color of this mesh
var ss = model.Instances[instance.StyleLabel] as IIfcSurfaceStyle;
XbimColour color = XbimColour.DefaultColour;
if (ss != null)
{
var texture = XbimTexture.Create(ss);
color = texture.ColourMap.FirstOrDefault();
}
else
{
var styleId = instance.StyleLabel > 0 ? instance.StyleLabel : instance.IfcTypeId;
var theType = model.Metadata.GetType((short)styleId);
color = colorMap[theType.Name];
}
meshStore.Color = string.Format("{0},{1},{2},{3}", (int)(color.Red * 255), (int)(color.Green * 255), (int)(color.Blue * 255), color.Alpha * 255);
var geometry = context.ShapeGeometry(instance);
var data = (geometry as IXbimShapeGeometryData).ShapeData;
// multiple geometry may belong to one product, like frame and glass belong to a ifcwindow
var product = model.Instances[instance.IfcProductLabel] as IIfcProduct;
if (!geometries.ContainsKey(product.GlobalId))
{
geometries.Add(product.GlobalId, new GeometryStore(product.GlobalId, product.Name));
}
var geometryStore = geometries[product.GlobalId];
// reading the real geometry data
using (var stream = new MemoryStream(data))
{
using (var reader = new BinaryReader(stream))
{
// triangle the instance and transform it to the correct position
var mesh = reader.ReadShapeTriangulation();
mesh = mesh.Transform(instance.Transformation);
// geometry data
var verticesData = new List <double>();
var normalsData = new List <double>();
var indexesData = new List <int>();
// bouding box for instance.
double minX = double.MaxValue, minY = double.MaxValue, minZ = double.MaxValue,
maxX = double.MinValue, maxY = double.MinValue, maxZ = double.MinValue;
var faces = mesh.Faces as List <XbimFaceTriangulation>;
foreach (var face in faces)
{
foreach (var indice in face.Indices)
{
indexesData.Add(indice);
}
foreach (var normal in face.Normals)
{
normalsData.Add(normal.Normal.X);
normalsData.Add(normal.Normal.Y);
normalsData.Add(normal.Normal.Z);
}
}
var vertices = mesh.Vertices as List <XbimPoint3D>;
foreach (var point in vertices)
{
double x = point.X / meter, y = point.Y / meter, z = point.Z / meter;
verticesData.Add(x); // convert to meter
verticesData.Add(y);
verticesData.Add(z);
// update bounding box
minX = Math.Min(minX, x);
minY = Math.Min(minY, y);
minZ = Math.Min(minZ, z);
maxX = Math.Max(maxX, x);
maxY = Math.Max(maxY, y);
maxZ = Math.Max(maxZ, z);
}
if (minX == double.MaxValue || minY == double.MaxValue || minZ == double.MaxValue ||
maxX == double.MinValue || maxY == double.MinValue || maxZ == double.MinValue)
{
throw new Exception("Invalid Boundingbox");
}
// do not trust instance.BoundingBox, it seems to be wrong.
XbimRect3D bbox = new XbimRect3D(minX, minY, minZ, maxX - minX, maxY - minY, maxZ - minZ);
// update boundingbox of current geometryStore
geometryStore.BoundBox = GeometryStore.Union(geometryStore.BoundBox, bbox);
// update boundingbox of ifc model
modelBoundingBox = GeometryStore.Union(modelBoundingBox, bbox);
meshStore.Vertexes = verticesData;
meshStore.Normals = normalsData;
meshStore.Indexes = indexesData;
}
}
geometryStore.Meshes.Add(meshStore);
}
}
public static void UpdateElementTransform(IfcStore _model, string projectNumber, string projectName)
{
DBOperation.beginTransaction();
DBOperation.commitInterval = 5000;
string currStep = string.Empty;
BIMRLCommon _refBIMRLCommon = new BIMRLCommon();
int commandStatus = -1;
int currInsertCount = 0;
OracleCommand command = new OracleCommand(" ", DBOperation.DBConn);
XbimMatrix3D m3D = new XbimMatrix3D();
if (string.IsNullOrEmpty(projectName))
{
projectName = projectNumber + " - Federated";
}
string modelName;
if (!string.IsNullOrEmpty(_model.FileName))
{
modelName = Path.GetFileNameWithoutExtension(_model.FileName);
}
else
{
modelName = projectNumber + " - " + projectName;
}
command.CommandText = "SELECT FEDERATEDID FROM bimrl_federatedmodel WHERE MODELNAME = '" + modelName + "' AND PROJECTNUMBER='" + projectNumber + "' AND PROJECTNAME='" + projectName + "'";
object oFedID = command.ExecuteScalar();
if (oFedID == null)
{
return;
}
int fedID = int.Parse(oFedID.ToString());
command.CommandText = "SELECT ELEMENTID, LINENO FROM " + DBOperation.formatTabName("bimrl_element", fedID) + " WHERE GEOMETRYBODY IS NOT NULL";
OracleDataReader reader = command.ExecuteReader();
SortedDictionary <int, string> elemList = new SortedDictionary <int, string>();
while (reader.Read())
{
string elemid = reader.GetString(0);
int lineNo = reader.GetInt32(1);
elemList.Add(lineNo, elemid);
}
reader.Close();
Xbim3DModelContext context = new Xbim3DModelContext(_model);
foreach (KeyValuePair <int, string> elemListItem in elemList)
{
//IEnumerable<XbimGeometryData> geomDataList = _model.GetGeometryData(elemListItem.Key, XbimGeometryType.TriangulatedMesh);
IIfcProduct product = _model.Instances[elemListItem.Key] as IIfcProduct;
IEnumerable <XbimShapeInstance> shapeInstances = context.ShapeInstancesOf(product).Where(x => x.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsIncluded);
if (shapeInstances.Count() == 0)
{
continue; // SKip if the product has no geometry
}
XbimMeshGeometry3D prodGeom = new XbimMeshGeometry3D();
IXbimShapeGeometryData shapeGeom = context.ShapeGeometry(shapeInstances.FirstOrDefault().ShapeGeometryLabel);
//XbimModelExtensions.Read(prodGeom, shapeGeom.ShapeData, shapeInstances.FirstOrDefault().Transformation);
//XbimGeometryData sdoGeomData = geomDataList.First();
//m3D = sdoGeomData.Transform;
//m3D = XbimMatrix3D.FromArray(sdoGeomData.DataArray2); // Xbim 3.0 removes Tranform property
m3D = shapeInstances.FirstOrDefault().Transformation;
string sqlStmt = "update " + DBOperation.formatTabName("BIMRL_ELEMENT", fedID) + " set TRANSFORM_COL1=:1, TRANSFORM_COL2=:2, TRANSFORM_COL3=:3, TRANSFORM_COL4=:4"
+ " Where elementid = '" + elemListItem.Value + "'";
// int status = DBOperation.updateGeometry(sqlStmt, sdoGeomData);
currStep = sqlStmt;
command.CommandText = sqlStmt;
try
{
OracleParameter[] sdoGeom = new OracleParameter[4];
for (int i = 0; i < sdoGeom.Count(); ++i)
{
sdoGeom[i] = command.Parameters.Add((i + 1).ToString(), OracleDbType.Object);
sdoGeom[i].Direction = ParameterDirection.Input;
sdoGeom[i].UdtTypeName = "MDSYS.SDO_GEOMETRY";
sdoGeom[i].Size = 1;
}
SdoGeometry trcol1 = new SdoGeometry();
trcol1.Dimensionality = 3;
trcol1.LRS = 0;
trcol1.GeometryType = (int)SdoGeometryTypes.GTYPE.POINT;
int gType = trcol1.PropertiesToGTYPE();
SdoPoint trcol1V = new SdoPoint();
trcol1V.XD = m3D.M11;
trcol1V.YD = m3D.M12;
trcol1V.ZD = m3D.M13;
trcol1.SdoPoint = trcol1V;
sdoGeom[1].Value = trcol1;
SdoGeometry trcol2 = new SdoGeometry();
trcol2.Dimensionality = 3;
trcol2.LRS = 0;
trcol2.GeometryType = (int)SdoGeometryTypes.GTYPE.POINT;
gType = trcol2.PropertiesToGTYPE();
SdoPoint trcol2V = new SdoPoint();
trcol2V.XD = m3D.M21;
trcol2V.YD = m3D.M22;
trcol2V.ZD = m3D.M23;
trcol2.SdoPoint = trcol2V;
sdoGeom[2].Value = trcol2;
SdoGeometry trcol3 = new SdoGeometry();
trcol3.Dimensionality = 3;
trcol3.LRS = 0;
trcol3.GeometryType = (int)SdoGeometryTypes.GTYPE.POINT;
gType = trcol3.PropertiesToGTYPE();
SdoPoint trcol3V = new SdoPoint();
trcol3V.XD = m3D.M31;
trcol3V.YD = m3D.M32;
trcol3V.ZD = m3D.M33;
trcol3.SdoPoint = trcol3V;
sdoGeom[3].Value = trcol3;
SdoGeometry trcol4 = new SdoGeometry();
trcol4.Dimensionality = 3;
trcol4.LRS = 0;
trcol4.GeometryType = (int)SdoGeometryTypes.GTYPE.POINT;
gType = trcol4.PropertiesToGTYPE();
SdoPoint trcol4V = new SdoPoint();
trcol4V.XD = m3D.OffsetX;
trcol4V.YD = m3D.OffsetY;
trcol4V.ZD = m3D.OffsetZ;
trcol4.SdoPoint = trcol4V;
sdoGeom[4].Value = trcol4;
commandStatus = command.ExecuteNonQuery();
command.Parameters.Clear();
currInsertCount++;
if (currInsertCount % DBOperation.commitInterval == 0)
{
//Do commit at interval but keep the long transaction (reopen)
DBOperation.commitTransaction();
}
}
catch (OracleException e)
{
string excStr = "%%Error - " + e.Message + "\n\t" + currStep;
_refBIMRLCommon.StackPushError(excStr);
//command.Dispose(); // Log Oracle error and continue
command = new OracleCommand(" ", DBOperation.DBConn);
// throw;
}
catch (SystemException e)
{
string excStr = "%%Insert Error - " + e.Message + "\n\t" + currStep;
_refBIMRLCommon.StackPushError(excStr);
throw;
}
DBOperation.commitTransaction();
command.Dispose();
}
}
private void ShowGeometrySummary(XbimModel model)
{
var context = new Xbim3DModelContext(model);
Console.WriteLine();
Console.WriteLine("Styles");
foreach (var styles in context.SurfaceStyles())
{
Console.WriteLine("{0,-6} {1,-30} {2,-6}",
styles.DefinedObjectId,
styles.ColourMap.First(),
styles.IsTransparent);
}
var largest = context.GetLargestRegion();
Console.WriteLine();
Console.WriteLine("Regions");
foreach (var region in context.GetRegions())
{
Console.WriteLine("{0,-20} {1,6} {2}",
region.Name,
region.Population,
(region == largest));
}
Console.WriteLine("{0,-8}, {1,-8}, {2,6} {3,8}",
"Ifc Label",
"Label",
"Ref Count",
"Bytes");
var geometries = GetGeom(model)
.OrderByDescending(o => o.Cost)
.Distinct()
.Take(10);
var items = from inst in context.ShapeInstances()
join prod in model.Instances.OfType <IfcProduct>()
on inst.IfcProductLabel equals prod.EntityLabel
select new
{
Instance = inst,
Geometry = context.ShapeGeometry(inst.InstanceLabel),
Product = prod
};
var expensiveProducts = items
.OrderByDescending(o => (o.Geometry.IsValid ? o.Geometry.Cost : 0))
.Take(20);
foreach (var geometry in geometries)
{
Console.WriteLine("{0, -8}, {1,-8}, {2,6} {3,8}",
geometry.IfcShapeLabel,
geometry.ShapeLabel,
geometry.ReferenceCount,
geometry.Cost);
}
Console.WriteLine();
Console.WriteLine("Top 20 expensive items");
foreach (var item in expensiveProducts)
{
Console.WriteLine("{0,-6} {1,-40} {2,-20} {3,6}",
item.Product.EntityLabel,
item.Product.Name.ToString().Truncate(40),
item.Product.GetType().Name,
item.Geometry.Cost
);
}
}
/// <summary>
/// This version uses the new Geometry representation
/// </summary>
/// <param name="model"></param>
/// <param name="context"></param>
/// <param name="exclude">List of type to exclude, by default excplict openings and spaces are excluded if exclude = null</param>
/// <returns></returns>
public XbimScene <WpfMeshGeometry3D, WpfMaterial> BuildScene(XbimModel model, Xbim3DModelContext context,
List <Type> exclude = null)
{
var excludedTypes = new HashSet <short>();
if (exclude == null)
{
exclude = new List <Type>()
{
typeof(IfcSpace)
// , typeof(IfcFeatureElement)
}
}
;
foreach (var excludedT in exclude)
{
var ifcT = IfcMetaData.IfcType(excludedT);
foreach (var exIfcType in ifcT.NonAbstractSubTypes.Select(IfcMetaData.IfcType))
{
excludedTypes.Add(exIfcType.TypeId);
}
}
var scene = new XbimScene <WpfMeshGeometry3D, WpfMaterial>(model);
if (context == null)
{
return(scene);
}
//get a list of all the unique styles
var styles = new Dictionary <int, WpfMaterial>();
var repeatedShapeGeometries = new Dictionary <int, MeshGeometry3D>();
var styleMeshSets = new Dictionary <int, WpfMeshGeometry3D>();
var tmpOpaquesGroup = new Model3DGroup();
var tmpTransparentsGroup = new Model3DGroup();
var sstyles = context.SurfaceStyles();
foreach (var style in sstyles)
{
var wpfMaterial = new WpfMaterial();
wpfMaterial.CreateMaterial(style);
styles.Add(style.DefinedObjectId, wpfMaterial);
var mg = new WpfMeshGeometry3D(wpfMaterial, wpfMaterial);
mg.WpfModel.SetValue(FrameworkElement.TagProperty, mg);
styleMeshSets.Add(style.DefinedObjectId, mg);
mg.BeginUpdate();
if (style.IsTransparent)
{
tmpTransparentsGroup.Children.Add(mg);
}
else
{
tmpOpaquesGroup.Children.Add(mg);
}
}
if (!styles.Any())
{
return(scene); //this should always return something
}
var shapeInstances = context.ShapeInstances()
.Where(s => s.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsIncluded
&&
!excludedTypes.Contains(s.IfcTypeId));
// !typeof (IfcFeatureElement).IsAssignableFrom(IfcMetaData.GetType(s.IfcTypeId)) /*&&
// !typeof(IfcSpace).IsAssignableFrom(IfcMetaData.GetType(s.IfcTypeId))*/);
foreach (var shapeInstance in shapeInstances)
{
var styleId = shapeInstance.StyleLabel > 0 ? shapeInstance.StyleLabel : shapeInstance.IfcTypeId * -1;
//GET THE ACTUAL GEOMETRY
MeshGeometry3D wpfMesh;
//see if we have already read it
if (repeatedShapeGeometries.TryGetValue(shapeInstance.ShapeGeometryLabel, out wpfMesh))
{
var mg = new GeometryModel3D(wpfMesh, styles[styleId]);
mg.SetValue(FrameworkElement.TagProperty,
new XbimInstanceHandle(model, shapeInstance.IfcProductLabel, shapeInstance.IfcTypeId));
mg.BackMaterial = mg.Material;
mg.Transform =
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.ModelPositions[model].Transfrom).ToMatrixTransform3D();
if (styles[styleId].IsTransparent)
{
tmpTransparentsGroup.Children.Add(mg);
}
else
{
tmpOpaquesGroup.Children.Add(mg);
}
}
else //we need to get the shape geometry
{
IXbimShapeGeometryData shapeGeom = context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
if (shapeGeom.ReferenceCount > 1) //only store if we are going to use again
{
wpfMesh = new MeshGeometry3D();
switch ((XbimGeometryType)shapeGeom.Format)
{
case XbimGeometryType.PolyhedronBinary:
wpfMesh.Read(shapeGeom.ShapeData);
break;
case XbimGeometryType.Polyhedron:
wpfMesh.Read(((XbimShapeGeometry)shapeGeom).ShapeData);
break;
}
repeatedShapeGeometries.Add(shapeInstance.ShapeGeometryLabel, wpfMesh);
var mg = new GeometryModel3D(wpfMesh, styles[styleId]);
mg.SetValue(FrameworkElement.TagProperty,
new XbimInstanceHandle(model, shapeInstance.IfcProductLabel, shapeInstance.IfcTypeId));
mg.BackMaterial = mg.Material;
mg.Transform =
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.ModelPositions[model].Transfrom).ToMatrixTransform3D();
if (styles[styleId].IsTransparent)
{
tmpTransparentsGroup.Children.Add(mg);
}
else
{
tmpOpaquesGroup.Children.Add(mg);
}
}
else //it is a one off, merge it with shapes of a similar material
{
var targetMergeMeshByStyle = styleMeshSets[styleId];
switch ((XbimGeometryType)shapeGeom.Format)
{
case XbimGeometryType.Polyhedron:
// var shapePoly = (XbimShapeGeometry)shapeGeom;
var asString = Encoding.UTF8.GetString(shapeGeom.ShapeData.ToArray());
targetMergeMeshByStyle.Add(
asString,
shapeInstance.IfcTypeId,
shapeInstance.IfcProductLabel,
shapeInstance.InstanceLabel,
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.ModelPositions[model].Transfrom),
model.UserDefinedId);
break;
case XbimGeometryType.PolyhedronBinary:
var transform = XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.ModelPositions[model].Transfrom);
targetMergeMeshByStyle.Add(
shapeGeom.ShapeData,
shapeInstance.IfcTypeId,
shapeInstance.IfcProductLabel,
shapeInstance.InstanceLabel, transform,
model.UserDefinedId);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
}
foreach (var wpfMeshGeometry3D in styleMeshSets.Values)
{
wpfMeshGeometry3D.EndUpdate();
}
//}
if (tmpOpaquesGroup.Children.Any())
{
var mv = new ModelVisual3D();
mv.Content = tmpOpaquesGroup;
Control.OpaquesVisual3D.Children.Add(mv);
// Control.ModelBounds = mv.Content.Bounds.ToXbimRect3D();
}
if (tmpTransparentsGroup.Children.Any())
{
var mv = new ModelVisual3D();
mv.Content = tmpTransparentsGroup;
Control.TransparentsVisual3D.Children.Add(mv);
//if (Control.ModelBounds.IsEmpty) Control.ModelBounds = mv.Content.Bounds.ToXbimRect3D();
//else Control.ModelBounds.Union(mv.Content.Bounds.ToXbimRect3D());
}
return(scene);
}
public static XbimMeshGeometry3D GetMesh(this XbimModel xbimModel, IEnumerable <IPersistIfcEntity> items, XbimMatrix3D wcsTransform)
{
var m = new XbimMeshGeometry3D();
if (xbimModel.GeometrySupportLevel == 1)
{
// this is what happens for version 1 of the engine
//
foreach (var item in items)
{
var fromModel = item.ModelOf as XbimModel;
if (fromModel == null)
{
continue;
}
var geomDataSet = fromModel.GetGeometryData(item.EntityLabel, XbimGeometryType.TriangulatedMesh);
foreach (var geomData in geomDataSet)
{
// todo: add guidance to the TransformBy method so that users can understand how to stop using it (it's marked absolete)
geomData.TransformBy(wcsTransform);
m.Add(geomData, xbimModel.UserDefinedId);
}
}
}
else
{
// this is what happens for version 2 of the engine
//
foreach (var item in items)
{
var fromModel = item.ModelOf as XbimModel;
if (fromModel == null || !(item is IfcProduct))
{
continue;
}
var context = new Xbim3DModelContext(fromModel);
var productShape =
context.ShapeInstancesOf((IfcProduct)item)
.Where(s => s.RepresentationType != XbimGeometryRepresentationType.OpeningsAndAdditionsExcluded)
.ToList(); // this also returns shapes of voids
foreach (var shapeInstance in productShape)
{
IXbimShapeGeometryData shapeGeom = context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
switch ((XbimGeometryType)shapeGeom.Format)
{
case XbimGeometryType.PolyhedronBinary:
m.Read(shapeGeom.ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
case XbimGeometryType.Polyhedron:
m.Read(((XbimShapeGeometry)shapeGeom).ShapeData,
XbimMatrix3D.Multiply(shapeInstance.Transformation, wcsTransform));
break;
}
}
}
}
return(m);
}
public XbimScene<WpfMeshGeometry3D, WpfMaterial> BuildScene(XbimModel model, Xbim3DModelContext context, List<Type> exclude = null)
{
var tmpOpaquesGroup = new Model3DGroup();
var retScene = new XbimScene<WpfMeshGeometry3D, WpfMaterial>(model);
var red = PrepareMesh(new XbimColour("Red", 1.0, 0.0, 0.0));
var green = PrepareMesh(new XbimColour("Green", 0.0, 1.0, 0.0));
var amber =PrepareMesh(new XbimColour("Amber", 0.0, 0.0, 1.0, 0.9));
tmpOpaquesGroup.Children.Add(red);
tmpOpaquesGroup.Children.Add(green);
tmpOpaquesGroup.Children.Add(amber);
var i = 0;
foreach (var shapeInstance in context.ShapeInstances()
.Where(s => s.RepresentationType == XbimGeometryRepresentationType.OpeningsAndAdditionsIncluded &&
!typeof (IfcFeatureElement).IsAssignableFrom(IfcMetaData.GetType(s.IfcTypeId)) /*&&
!typeof(IfcSpace).IsAssignableFrom(IfcMetaData.GetType(s.IfcTypeId))*/))
{
IXbimShapeGeometryData shapeGeom = context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
WpfMeshGeometry3D targetMergeMesh;
switch (i++%3)
{
case 0:
targetMergeMesh = red;
break;
case 1:
targetMergeMesh = green;
break;
default:
targetMergeMesh = amber;
break;
}
switch ((XbimGeometryType)shapeGeom.Format)
{
case XbimGeometryType.Polyhedron:
var shapePoly = (XbimShapeGeometry)shapeGeom;
targetMergeMesh.Add(
shapePoly.ShapeData,
shapeInstance.IfcTypeId,
shapeInstance.IfcProductLabel,
shapeInstance.InstanceLabel,
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.ModelPositions[model].Transfrom),
model.UserDefinedId
);
break;
case XbimGeometryType.PolyhedronBinary:
targetMergeMesh.Add(
shapeGeom.ShapeData,
shapeInstance.IfcTypeId,
shapeInstance.IfcProductLabel,
shapeInstance.InstanceLabel,
XbimMatrix3D.Multiply(shapeInstance.Transformation, Control.ModelPositions[model].Transfrom),
model.UserDefinedId);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
var mv = new ModelVisual3D {Content = tmpOpaquesGroup};
Control.OpaquesVisual3D.Children.Add(mv);
Control.ModelBounds = mv.Content.Bounds.ToXbimRect3D();
return retScene;
}
private void WriteGeometry(JsonWriter writer)
{
XbimMatrix3D globalTrans = GetGlobalModelTransform();
//write out the material nodes and then the instances for each material
Dictionary <int, XbimTexture> styles = _context.SurfaceStyles().ToDictionary(s => s.DefinedObjectId);
foreach (var instanceGroup in _context.ShapeInstancesGroupByStyle())
{
if (!instanceGroup.Any())
{
continue; //skip emmpty instances;
}
int styleId = instanceGroup.Key;
XbimTexture style = styles[styleId];
writer.WriteStartObject(); //Material node
{
writer.WritePropertyName("type"); writer.WriteValue("material");
writer.WritePropertyName("id"); writer.WriteValue("M" + styleId);
writer.WritePropertyName("color");
writer.WriteStartObject(); //begin color
{
writer.WritePropertyName("r"); writer.WriteValue(style.ColourMap[0].Red);
writer.WritePropertyName("g"); writer.WriteValue(style.ColourMap[0].Green);
writer.WritePropertyName("b"); writer.WriteValue(style.ColourMap[0].Blue);
} writer.WriteEndObject(); //end color
writer.WritePropertyName("alpha"); writer.WriteValue(style.ColourMap[0].Alpha);
//all instances of this style
writer.WritePropertyName("nodes"); //beginning of the instance nodes
writer.WriteStartArray();
foreach (var shapeInstance in instanceGroup)
{
writer.WriteStartObject(); //start of instance transform
{
if (_maps.Contains(shapeInstance.ShapeGeometryLabel)) //it is a reference
{
//write the transform
writer.WritePropertyName("type"); //geometry node
writer.WriteValue("matrix");
writer.WritePropertyName("id");
writer.WriteValue("I" + shapeInstance.InstanceLabel);
writer.WritePropertyName("elements");
XbimMatrix3D m = XbimMatrix3D.Multiply(shapeInstance.Transformation, globalTrans);
WriteMatrix(writer, m);
writer.WritePropertyName("nodes"); //beginning of the instance nodes
writer.WriteStartArray();
//write the map
writer.WriteStartObject(); //start of map
{
writer.WritePropertyName("type"); //geometry node
writer.WriteValue("geometry");
writer.WritePropertyName("coreId");
writer.WriteValue("L" + shapeInstance.ShapeGeometryLabel);
} writer.WriteEndObject(); //end of map
writer.WriteEndArray(); //end of instance tranform nodes
}
else //write the actual geometry
{
writer.WritePropertyName("type"); //geometry node
writer.WriteValue("geometry");
writer.WritePropertyName("primitive"); //primitive: "
writer.WriteValue("triangles");
writer.WritePropertyName("id");
writer.WriteValue("I" + shapeInstance.InstanceLabel);
WriteShapeGeometry(writer, _context.ShapeGeometry(shapeInstance), XbimMatrix3D.Multiply(shapeInstance.Transformation, globalTrans));
}
} writer.WriteEndObject(); //end of instance transform
}
writer.WriteEndArray(); //end of instance transform nodes
} writer.WriteEndObject(); // end of the material node
}
}
