private static void CreateShape(BimProduct product, GameObject productObj, List <BimColor> colors)
{
foreach (var shape in product.shapes)
{
GameObject shapeObj = new GameObject(shape.instanceLabel.ToString());
shapeObj.transform.parent = productObj.transform;
var meshFilter = shapeObj.AddComponent <MeshFilter>();
var mesh = meshFilter.mesh;
foreach (var tri in shape.triangulations)//?
{
mesh.vertices = tri.vertices.ToArray();
mesh.triangles = tri.triangles.ToArray();
mesh.normals = tri.normals.ToArray();
mesh.Optimize();
}
var meshRenderer = shapeObj.AddComponent <MeshRenderer>();
BimColor bimColor = colors.Find(color => color.styleLabel == shape.styleLabel);
meshRenderer.material = bimColor.material;
//shapeObj.AddComponent<MeshCollider>();
}
}
public static void ReadWexBim(string wexBimPath)
{
//Dictionary<int, BimColor> colors = new Dictionary<int, BimColor>();
List <BimColor> colors = new List <BimColor>();
List <BimRegion> regions = new List <BimRegion>();
List <BimProduct> products = new List <BimProduct>();
using (var fs = new FileStream(wexBimPath, FileMode.Open, FileAccess.Read))
{
float scale = 0f;//关系到模型实际大小的比例
Vector3 offset = Vector3.zero;
using (var br = new BinaryReader(fs))
{
var magicNumber = 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();
scale = meter;
for (int i = 0; i < regionCount; i++)
{
var population = br.ReadInt32();
var centreX = br.ReadSingle();
var centreY = br.ReadSingle();
var centreZ = br.ReadSingle();
var boundsBytes = br.ReadBytes(6 * sizeof(float));
var modelBounds = XbimRect3D.FromArray(boundsBytes);
BimRegion region = new BimRegion(population, centreX, centreY, centreZ, (float)modelBounds.SizeX, (float)modelBounds.SizeY, (float)modelBounds.SizeZ);
regions.Add(region);
}
offset = 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();
BimColor color = new BimColor(styleId, red, green, blue, alpha);
colors.Add(color);
}
for (int i = 0; i < productCount; i++)
{
var productLabel = br.ReadInt32();
var productType = br.ReadInt16();
var boxBytes = br.ReadBytes(6 * sizeof(float));
BimProduct product = new BimProduct(productLabel, productType);
/*
* XbimRect3D bb = XbimRect3D.FromArray(boxBytes);
* XbimPoint3D doubleCenter = XbimPoint3D.Add(bb.Min, bb.Max);
* BimProduct product = new BimProduct(productLabel, productType, (float)doubleCenter.X / 2, (float)doubleCenter.Y / 2,
* (float)doubleCenter.Z / 2, (float)bb.SizeX, (float)bb.SizeY, (float)bb.SizeZ);
*/
products.Add(product);
}
for (int i = 0; i < shapeCount; i++)
{
var shapeRepetition = br.ReadInt32();
if (shapeRepetition > 1)
{
List <BimShape> thisShape = new List <BimShape>();
for (int j = 0; j < shapeRepetition; j++)
{
var ifcProductLabel = br.ReadInt32();
var instanceTypeId = br.ReadInt16();
var instanceLabel = br.ReadInt32();
var styleId = br.ReadInt32();
var transform = XbimMatrix3D.FromArray(br.ReadBytes(sizeof(double) * 16));
BimShape shape = new BimShape(ifcProductLabel, instanceTypeId, instanceLabel, styleId, transform);
thisShape.Add(shape);
var p = products.Find(product => product.entityLabel == ifcProductLabel);
p.shapes.Add(shape);
}
var triangulation = br.ReadShapeTriangulation();
foreach (var s in thisShape)
{
var tri = new BimTriangulation(triangulation, scale, offset, s.transform, true);
s.triangulations.Add(tri);
}
}
else if (shapeRepetition == 1)
{
var ifcProductLabel = br.ReadInt32();
var instanceTypeId = br.ReadInt16();
var instanceLabel = br.ReadInt32();
var styleId = br.ReadInt32();
XbimShapeTriangulation triangulation = br.ReadShapeTriangulation();
BimShape shape = new BimShape(ifcProductLabel, instanceTypeId, instanceLabel, styleId);
var p = products.Find(product => product.entityLabel == ifcProductLabel);
p.shapes.Add(shape);
var tri = new BimTriangulation(triangulation, scale, offset);
shape.triangulations.Add(tri);
}
}
}
}
ModelCreater.CreateModel(products, colors);
}