private void PrepareStyleMaterial(IModel model, int styleId)
{
if (styleDic.ContainsKey(styleId))
{
return;
}
var sStyle = model.Instances[styleId] as IIfcSurfaceStyle;
var name = sStyle.Name;
var texture = XbimTexture.Create(sStyle);
var r = 0.8f;
var g = 0.8f;
var b = 0.8f;
var a = 1.0f;
if (texture.ColourMap.Any())
{
var colour = texture.ColourMap[0];
r = colour.Red;
g = colour.Green;
b = colour.Blue;
a = colour.Alpha;
}
else
{
// if no color defined and no name, just use default
if (string.IsNullOrEmpty(name))
{
styleDic.Add(styleId, 0);
}
}
// else add it to dictionary and to list
styleDic.Add(styleId, _materials.Count);
_materials.Add(CreateMaterial(name, r, g, b, a));
}
public void CreateMaterial(XbimTexture texture)
{
if (texture.ColourMap.Count > 1)
{
_material = new MaterialGroup();
var descBuilder = new StringBuilder();
descBuilder.Append("Texture");
var transparent = true;
foreach (var colour in texture.ColourMap)
{
if (!colour.IsTransparent)
{
transparent = false; //only transparent if everything is transparent
}
descBuilder.AppendFormat(" {0}", colour);
((MaterialGroup)_material).Children.Add(MaterialFromColour(colour));
}
_description = descBuilder.ToString();
IsTransparent = transparent;
}
else if (texture.ColourMap.Count == 1)
{
var colour = texture.ColourMap[0];
_material = MaterialFromColour(colour);
_description = "Texture " + colour;
IsTransparent = colour.IsTransparent;
}
else
{
_material = new MaterialGroup();
}
_material.Freeze();
}
public void CreateMaterial(XbimTexture texture)
{
if (texture.ColourMap.Count > 1)
{
_material = new MaterialGroup();
_description = "Texture";
bool transparent = true;
foreach (var colour in texture.ColourMap)
{
if (!colour.IsTransparent)
{
transparent = false; //only transparent if everything is transparent
}
_description += " " + colour;
((MaterialGroup)_material).Children.Add(MaterialFromColour(colour));
}
IsTransparent = transparent;
}
else if (texture.ColourMap.Count == 1)
{
XbimColour colour = texture.ColourMap[0];
_material = MaterialFromColour(colour);
_description = "Texture " + colour;
IsTransparent = colour.IsTransparent;
}
}
/// <summary>
/// Get the Material of a given element
/// </summary>
/// <param name="model"></param>
/// <param name="styleId"></param>
/// <returns></returns>
private static Material GetWpfMaterial(IModel model, int styleId)
{
var sStyle = model.Instances[styleId] as Xbim.Ifc4.Interfaces.IIfcSurfaceStyle;
var wpfMaterial = new WpfMaterial();
if (sStyle != null)
{
var texture = XbimTexture.Create(sStyle);
texture.DefinedObjectId = styleId;
wpfMaterial.CreateMaterial(texture);
return(wpfMaterial);
}
else
{
var defautMaterial = Xbim.Presentation.ModelDataProvider.DefaultMaterials;
Material material;
if (defautMaterial.TryGetValue(model.GetType().Name, out material))
{
//((System.Windows.Media.Media3D.DiffuseMaterial)material).Brush.Opacity = opacity;
return(material);
}
else
{
XbimColour color = new XbimColour("red", 1, 1, 1);
wpfMaterial.CreateMaterial(color);
return(wpfMaterial);
// return defautMaterial["IfcProduct"];
//((System.Windows.Media.Media3D.DiffuseMaterial)mat).Brush.Opacity = opacity;
}
}
}
private static Material GetWpfMaterial(Xbim.Common.IModel model, int styleId)
{
var sStyle = model.Instances[styleId] as IIfcSurfaceStyle;
var wpfMaterial = new WpfMaterial();
if (sStyle != null)
{
XbimTexture texture = XbimTexture.Create(sStyle);
texture.DefinedObjectId = styleId;
wpfMaterial.CreateMaterial(texture);
return(wpfMaterial);
}
MaterialDictionary defaultMaterial = ModelDataProvider.DefaultMaterials;
Material material;
if (defaultMaterial.TryGetValue(model.GetType().Name, out material))
{
return(material);
}
var color = new XbimColour("black", 1, 1, 1);
wpfMaterial.CreateMaterial(color);
return(wpfMaterial);
}
public static MaterialModel Create(IModel model, short typeId)
{
var prodType = model.Metadata.ExpressType(typeId);
var texture = XbimTexture.Create(colourMap[prodType.Name]);
var xBimColor = texture.ColourMap.FirstOrDefault();
return(Create(Color.FromScRgb(xBimColor.Alpha, xBimColor.Red, xBimColor.Green, xBimColor.Blue)));
}
public void TolerateSurfaceStyleWithMultipleColors()
{
using (var model = new ModelFactory("SubmittedFiles\\SomeBadIFCSURFACESTYLE.ifc").FirstOrDefault())
{
var bad = model.Instances[7946] as IIfcSurfaceStyle;
var created = XbimTexture.Create(bad);
}
}
protected WpfMaterial GetWpfMaterial(IModel model, int styleId)
{
var sStyle = model.Instances[styleId] as IIfcSurfaceStyle;
var wpfMaterial = new WpfMaterial();
//The style contains a texture
bool isTexture = false;
if (sStyle.Styles.Any(x => x is IIfcSurfaceStyleWithTextures))
{
IIfcSurfaceStyleWithTextures surfaceStyleWithTexture = (IIfcSurfaceStyleWithTextures)sStyle.Styles.First(x => x is IIfcSurfaceStyleWithTextures);
if (surfaceStyleWithTexture.Textures.Any(x => x is IIfcImageTexture))
{
IIfcImageTexture imageTexture = surfaceStyleWithTexture.Textures.First(x => x is IIfcImageTexture) as IIfcImageTexture;
//generate the correct path
Uri imageUri;
if (Uri.TryCreate(imageTexture.URLReference, UriKind.Absolute, out imageUri))
{
wpfMaterial.WpfMaterialFromImageTexture(imageUri);
}
else if (Uri.TryCreate(imageTexture.URLReference, UriKind.Relative, out imageUri))
{
Uri modelFileUri = new Uri(model.Header.FileName.Name);
Uri absolutFileUri = new Uri(modelFileUri, imageTexture.URLReference);
wpfMaterial.WpfMaterialFromImageTexture(absolutFileUri);
}
else
{
Logger.LogWarning(0, "Invalid Uri " + imageTexture.URLReference + " (bad formatted or file not found).", imageTexture);
}
if (imageTexture.IsMappedBy != null)
{
wpfMaterial.IfcTextureCoordinate = imageTexture.IsMappedBy.FirstOrDefault();
}
isTexture = true;
}
}
//The style doesn't contain a texture
if (isTexture == false)
{
var texture = XbimTexture.Create(sStyle);
if (texture.ColourMap.Count > 0)
{
if (texture.ColourMap[0].Alpha <= 0)
{
texture.ColourMap[0].Alpha = 0.5f;
Logger.LogWarning("Fully transparent style #{styleId} forced to 50% opacity.", styleId);
}
}
texture.DefinedObjectId = styleId;
wpfMaterial.CreateMaterial(texture);
}
return(wpfMaterial);
}
protected WpfMaterial GetWpfMaterialByType(IModel model, short typeid)
{
var prodType = model.Metadata.ExpressType(typeid);
var v = _colourMap[prodType.Name];
var texture = XbimTexture.Create(v);
var material2 = new WpfMaterial();
material2.CreateMaterial(texture);
return(material2);
}
protected static WpfMaterial GetWpfMaterial(IModel model, int styleId)
{
var sStyle = model.Instances[styleId] as IIfcSurfaceStyle;
var texture = XbimTexture.Create(sStyle);
texture.DefinedObjectId = styleId;
var wpfMaterial = new WpfMaterial();
wpfMaterial.CreateMaterial(texture);
return(wpfMaterial);
}
protected WpfMaterial GetWpfMaterial(IModel model, int styleId)
{
var sStyle = model.Instances[styleId] as IIfcSurfaceStyle;
var texture = XbimTexture.Create(sStyle);
if (texture.ColourMap.Count > 0)
{
if (texture.ColourMap[0].Alpha <= 0)
{
texture.ColourMap[0].Alpha = 0.5f;
Logger.LogWarning("Fully transparent style #{styleId} forced to 50% opacity.", styleId);
}
}
texture.DefinedObjectId = styleId;
var wpfMaterial = new WpfMaterial();
wpfMaterial.CreateMaterial(texture);
return(wpfMaterial);
}
/// <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);
}
}
