private static void InstantiateShapeInstance(BimShapeInstance shapeInstance, GameObject productObj)
{
GameObject go = new GameObject(shapeInstance.productLabel.ToString());
go.transform.parent = productObj.transform;
MeshFilter meshFilter = go.AddComponent <MeshFilter>();
Mesh mesh = meshFilter.mesh;
foreach (var tri in shapeInstance.triangulations)
{
mesh.vertices = tri.vertices.ToArray();
mesh.triangles = tri.triangles.ToArray();
mesh.normals = tri.normals.ToArray();
}
MeshRenderer meshRenderer = go.AddComponent <MeshRenderer>();
Material material = new Material(Shader.Find("Unlit/NormalRender"));
var color = BimGeomorty.styles.Find(c => c.styleLabel == shapeInstance.styleLabel);
material.color = color.color;
//meshRenderer.material = material;
if (color.a < 0.9f)
{
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
material.SetInt("_ZWrite", 0);
material.renderQueue = 3000;
}
else
{
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
material.SetInt("_ZWrite", 1);
material.renderQueue = -1;
}
meshRenderer.material = material;
go.tag = "ShapeInstance";
}
public void AddShapeInstance(BimShapeInstance bimShapeInstance)
{
bimShapeInstances.Add(bimShapeInstance);
}
public static void ReadWexbim(string fileName)
{
Vector3 offset;
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read))
{
using (var br = new BinaryReader(fs))
{
var magicalNum = br.ReadInt32();
var version = br.ReadByte();
var shapeCount = br.ReadInt32();
var vertexCount = br.ReadInt32();
var triangleCount = br.ReadInt32();
var matrixCount = br.ReadInt32();
var productCount = br.ReadInt32();
var styleCount = br.ReadInt32();
var meter = br.ReadSingle();
var regionCount = br.ReadInt16();
for (int i = 0; i < regionCount; i++)
{
var population = br.ReadInt32();
var centreX = br.ReadSingle(); centreX /= meter;
var centreY = br.ReadSingle(); centreY /= meter;
var centreZ = br.ReadSingle(); centreZ /= meter;
var boundsBytes = br.ReadBytes(6 * sizeof(float));
var modelBounds = XbimRect3D.FromArray(boundsBytes);
modelBounds.X /= meter; modelBounds.Y /= meter; modelBounds.Z /= meter;
modelBounds.SizeX /= meter; modelBounds.SizeY /= meter; modelBounds.SizeZ /= meter;
BimGeomorty.regions.Add(new BimRegion(population, centreX, centreY, centreZ, (float)modelBounds.SizeX, (float)modelBounds.SizeY, (float)modelBounds.SizeZ));
}
//中心偏移
offset = BimGeomorty.regions[0].position;
for (int i = 0; i < styleCount; i++)
{
var styleId = br.ReadInt32();
var red = br.ReadSingle();
var green = br.ReadSingle();
var blue = br.ReadSingle();
var alpha = br.ReadSingle();
BimGeomorty.styles.Add(new BimStyle(styleId, red, green, blue, alpha));
}
for (int i = 0; i < productCount; i++)
{
var productLabel = br.ReadInt32();
var productType = br.ReadInt16();
var boxBytes = br.ReadBytes(6 * sizeof(float));
XbimRect3D bb = XbimRect3D.FromArray(boxBytes);
BimGeomorty.products.Add(new BimProduct(productLabel, productType));
}
for (int i = 0; i < shapeCount; i++)
{
var shapeRepetition = br.ReadInt32();
BimShapeInstance shapeInstance;
if (shapeRepetition > 1)
{
List <BimShapeInstance> tempInstances = new List <BimShapeInstance>();
for (int j = 0; j < shapeRepetition; j++)
{
var ifcProductLabel = br.ReadInt32();
var ifcTypeId = br.ReadInt16();
var instanceLabel = br.ReadInt32();
var styleLabel = br.ReadInt32();
var transform = XbimMatrix3D.FromArray(br.ReadBytes(sizeof(double) * 16));
shapeInstance = new BimShapeInstance(ifcProductLabel, ifcTypeId, instanceLabel, styleLabel, transform);
BimGeomorty.shapeInstances.Add(shapeInstance);
tempInstances.Add(shapeInstance);
var p = BimGeomorty.products.Find(product => product.productLabel == ifcProductLabel);
p.AddShapeInstance(shapeInstance);
}
var triangulation = br.ReadShapeTriangulation();
foreach (var temp in tempInstances)
{
var tri = new BimTriangulation(triangulation, offset, meter, temp.xbimMatrix, true);
temp.AddTriangulation(tri);
BimGeomorty.triangulations.Add(tri);
}
}
else if (shapeRepetition == 1)
{
var ifcProductLabel = br.ReadInt32();
var ifcTypeId = br.ReadInt16();
var instanceLabel = br.ReadInt32();
var styleLabel = br.ReadInt32();
shapeInstance = new BimShapeInstance(ifcProductLabel, ifcTypeId, instanceLabel, styleLabel);
BimGeomorty.shapeInstances.Add(shapeInstance);
var p = BimGeomorty.products.Find(product => product.productLabel == ifcProductLabel);
p.AddShapeInstance(shapeInstance);
XbimShapeTriangulation triangulation = br.ReadShapeTriangulation();
var tri = new BimTriangulation(triangulation, offset, meter);
BimGeomorty.triangulations.Add(tri);
shapeInstance.AddTriangulation(tri);
}
}
}
}
}