/// <summary>
/// 导出扁平的贴花或者叫纹理（DecalFlat）adj. (flat) 光滑均匀的；（陆地）平坦的；（水面）平静的；无坡度的；扁的；
/// </summary>
/// <param name="element"></param>
private void ExportDecalFlat(Element element)
{
ModelGeometry exportedGeometry = new ModelGeometry();
exportedGeometry.Transform = transformationStack.Peek();
GeometryElement arg_2F_0 = element.get_Geometry(Geometry_Options);
exportedGeometry.Points = new List <XYZ>(4);
using (IEnumerator <GeometryObject> enumerator = arg_2F_0.GetEnumerator())
{
while (enumerator.MoveNext())
{
Line line = (Line)enumerator.Current;
if (!(line == null))
{
exportedGeometry.Points.Add(line.Origin);
if (exportedGeometry.Points.Count >= 4)
{
break;
}
}
}
}
if (exportedGeometry.Points.Count != 4)
{
return;
}
exportedGeometry.Indices = new List <int>(6);
exportedGeometry.Indices.Add(0);
exportedGeometry.Indices.Add(2);
exportedGeometry.Indices.Add(1);
exportedGeometry.Indices.Add(0);
exportedGeometry.Indices.Add(3);
exportedGeometry.Indices.Add(2);
exportedGeometry.Uvs = new List <UV>(4);
exportedGeometry.Uvs.Add(new UV(0.0, 1.0));
exportedGeometry.Uvs.Add(new UV(1.0, 1.0));
exportedGeometry.Uvs.Add(new UV(1.0, 0.0));
exportedGeometry.Uvs.Add(new UV(0.0, 0.0));
exportedGeometry.CalculateNormals(false);
exportedGeometry.MakeDoubleSided();
int num = this.currentDecalMaterialId;
currentDecalMaterialId = num + 1;
ElementId elementId = new ElementId(num);
decalMaterialIdToDecal.Add(elementId, element);
Tuple <Document, ElementId> tuple = new Tuple <Document, ElementId>(documentStack.Peek(), elementId);
ChangeCurrentMaterial(tuple);
documentAndMaterialIdToGeometries[tuple].Add(exportedGeometry);
}
private void WriteXmlGeometrySourceNormals(int documentAndMaterialIdHash, IList <ModelGeometry> geometries)
{
Func <ModelGeometry, int> arg_20_1;
if ((arg_20_1 = Inner.T__18_0) == null)
{
arg_20_1 = (Inner.T__18_0 = new Func <ModelGeometry, int>(Inner.T.b__18_0));
}
//计算法线数量
int num = geometries.Sum(arg_20_1);
//source节点属性
this.sb.AppendFormat("<source id=\"geom-{0}-normals\">\n", documentAndMaterialIdHash);
//float_array节点属性
this.sb.AppendFormat("<float_array id=\"geom-{0}-normals-array\" count=\"{1}\">\n", documentAndMaterialIdHash, num * 3);
using (IEnumerator <ModelGeometry> enumerator = geometries.GetEnumerator())
{
while (enumerator.MoveNext())
{
ModelGeometry geometry = enumerator.Current;
if (!geometry.Transform.IsIdentity)
{
Parallel.For(0, geometry.Normals.Count, delegate(int iNormal)
{
geometry.Normals[iNormal] = geometry.Transform.OfVector(geometry.Normals[iNormal]);
});
}
for (int i = 0; i < geometry.Normals.Count; i++)
{
XYZ xYZ = geometry.Normals[i];
this.sb.AppendFormat(CultureInfo.InvariantCulture.NumberFormat, "{0:0.###} {1:0.###} {2:0.###} ", new object[]
{
xYZ.X,
xYZ.Y,
xYZ.Z
});
}
}
}
this.sb.Append("</float_array>\n");
this.sb.Append("<technique_common>\n");
this.sb.AppendFormat("<accessor source=\"#geom-{0}-normals-array\" count=\"{1}\" stride=\"3\">\n", documentAndMaterialIdHash, num);
this.sb.Append("<param name=\"X\" type=\"float\"/>\n");
this.sb.Append("<param name=\"Y\" type=\"float\"/>\n");
this.sb.Append("<param name=\"Z\" type=\"float\"/>\n");
this.sb.Append("</accessor>\n");
this.sb.Append("</technique_common>\n");
this.sb.Append("</source>\n");
}
/// <summary>
/// 导出有弧度弯曲的贴花DecalCurved
/// </summary>
/// <param name="element"></param>
private void ExportDecalCurved(Element element)
{
ModelGeometry exportedGeometry = new ModelGeometry();
exportedGeometry.Transform = transformationStack.Peek();
GeometryElement expr_23 = element.get_Geometry(Geometry_Options);
Arc arc = expr_23.ToArray()[1] as Arc;
Curve arg_49_0 = expr_23.ToArray()[3] as Arc;
XYZ[] array = arc.Tessellate().ToArray <XYZ>();
XYZ[] array2 = arg_49_0.Tessellate().ToArray();
exportedGeometry.Points = new List <XYZ>(array.Length + array2.Length);
exportedGeometry.Uvs = new List <UV>(array.Length + array2.Length);
for (int i = 0; i < array.Length; i++)
{
exportedGeometry.Points.Add(array[i]);
exportedGeometry.Uvs.Add(new UV(1f - i * (1f / (array.Length - 1)), 1.0));
}
for (int j = 0; j < array2.Length; j++)
{
exportedGeometry.Points.Add(array2[j]);
exportedGeometry.Uvs.Add(new UV(j * (1f / (array.Length - 1)), 0.0));
}
exportedGeometry.Indices = new List <int>((array.Length - 1) * 6);
for (int k = 0; k < array.Length - 1; k++)
{
exportedGeometry.Indices.Add(k);
exportedGeometry.Indices.Add(k + 1);
exportedGeometry.Indices.Add(array.Length * 2 - k - 1);
exportedGeometry.Indices.Add(k + 1);
exportedGeometry.Indices.Add(array.Length * 2 - k - 2);
exportedGeometry.Indices.Add(array.Length * 2 - k - 1);
}
exportedGeometry.CalculateNormals(false);
exportedGeometry.MakeDoubleSided();
int num = this.currentDecalMaterialId;
currentDecalMaterialId = num + 1;
ElementId elementId = new ElementId(num);
decalMaterialIdToDecal.Add(elementId, element);
Tuple <Document, ElementId> tuple = new Tuple <Document, ElementId>(documentStack.Peek(), elementId);
ChangeCurrentMaterial(tuple);
documentAndMaterialIdToGeometries[tuple].Add(exportedGeometry);
}
private void ExportSolid(Solid solid)
{
SolidOrShellTessellationControls solidOrShellTessellationControls = new SolidOrShellTessellationControls
{
LevelOfDetail = userSetting.LevelOfDetail / 30.0,
Accuracy = 0.1,
MinAngleInTriangle = 0.0001,
MinExternalAngleBetweenTriangles = 1.0
};
try
{
TriangulatedSolidOrShell triangulatedSolidOrShell = SolidUtils.TessellateSolidOrShell(solid, solidOrShellTessellationControls);
int shellComponentCount = triangulatedSolidOrShell.ShellComponentCount;
for (int i = 0; i < shellComponentCount; i++)
{
TriangulatedShellComponent shellComponent = triangulatedSolidOrShell.GetShellComponent(i);
ModelGeometry exportedGeometry = new ModelGeometry
{
Transform = transformationStack.Peek(),
Points = new List <XYZ>(shellComponent.VertexCount)
};
for (int num = 0; num != shellComponent.VertexCount; num++)
{
exportedGeometry.Points.Add(shellComponent.GetVertex(num));
}
exportedGeometry.Indices = new List <int>(shellComponent.TriangleCount * 3);
for (int j = 0; j < shellComponent.TriangleCount; j++)
{
TriangleInShellComponent triangle = shellComponent.GetTriangle(j);
exportedGeometry.Indices.Add(triangle.VertexIndex0);
exportedGeometry.Indices.Add(triangle.VertexIndex1);
exportedGeometry.Indices.Add(triangle.VertexIndex2);
}
exportedGeometry.CalculateNormals(false);
exportedGeometry.CalculateUVs(true, false);
ElementId materialElementId = solid.Faces.get_Item(0).MaterialElementId;
Tuple <Document, ElementId> tuple = new Tuple <Document, ElementId>(documentStack.Peek(), materialElementId);
ChangeCurrentMaterial(tuple);
documentAndMaterialIdToGeometries[tuple].Add(exportedGeometry);
}
}
catch (Exception)
{
}
}
/// <summary>
/// 当输出3d面的镶嵌多边形时，将调用此方法。
/// </summary>
/// <param name="polymesh">表示多边形网格拓扑的节点</param>
void IExportContext.OnPolymesh(PolymeshTopology polymesh)
{
ModelGeometry exportedGeometry = new ModelGeometry
{
Points = polymesh.GetPoints(),
Normals = polymesh.GetNormals(),
Uvs = polymesh.GetUVs(),
Transform = transformationStack.Peek(),
DistributionOfNormals = polymesh.DistributionOfNormals,
Indices = new List <int>(polymesh.GetFacets().Count * 3)
};
if (exportedGeometry.Transform.IsConformal && exportedGeometry.Transform.HasReflection)
{
using (IEnumerator <PolymeshFacet> enumerator = polymesh.GetFacets().GetEnumerator())
{
while (enumerator.MoveNext())
{
PolymeshFacet current = enumerator.Current;
exportedGeometry.Indices.Add(current.V1);
exportedGeometry.Indices.Add(current.V3);
exportedGeometry.Indices.Add(current.V2);
}
goto Fine;
}
}
foreach (PolymeshFacet current2 in polymesh.GetFacets())
{
exportedGeometry.Indices.Add(current2.V1);
exportedGeometry.Indices.Add(current2.V2);
exportedGeometry.Indices.Add(current2.V3);
}
Fine:
if (isElementDoubleSided)
{
exportedGeometry.MakeDoubleSided();
}
documentAndMaterialIdToGeometries[currentDocumentAndMaterialId].Add(exportedGeometry);
}
internal int b__21_2(ModelGeometry item)
{
return(item.Normals.Count);
}
internal int b__21_1(ModelGeometry item)
{
return(item.Points.Count);
}
internal int b__21_0(ModelGeometry item)
{
return(item.Indices.Count);
}
private void WriteXmlGeometryTrianglesWithMap(int documentAndMaterialIdHash, IList <ModelGeometry> geometries)
{
Func <ModelGeometry, int> arg_20_1;
if ((arg_20_1 = Inner.T__21_0) == null)
{
arg_20_1 = (Inner.T__21_0 = new Func <ModelGeometry, int>(Inner.T.b__21_0));
}
int num = geometries.Sum(arg_20_1) / 3;
this.sb.AppendFormat("<triangles count=\"{0}\" material=\"material-{1}\">\n", num, documentAndMaterialIdHash);
Func <ModelGeometry, int> arg_65_1;
if ((arg_65_1 = Inner.T__21_1) == null)
{
arg_65_1 = (Inner.T__21_1 = new Func <ModelGeometry, int>(Inner.T.b__21_1));
}
int arg_91_0 = geometries.Sum(arg_65_1);
Func <ModelGeometry, int> arg_8A_1;
if ((arg_8A_1 = Inner.T__21_2) == null)
{
arg_8A_1 = (Inner.T__21_2 = new Func <ModelGeometry, int>(Inner.T.b__21_2));
}
int num2 = geometries.Sum(arg_8A_1);
if (arg_91_0 == num2)
{
this.sb.AppendFormat("<input offset=\"0\" semantic=\"VERTEX\" source=\"#geom-{0}-vertices\"/>\n", documentAndMaterialIdHash);
this.sb.AppendFormat("<input offset=\"0\" semantic=\"TEXCOORD\" source=\"#geom-{0}-map\" set=\"0\"/>\n", documentAndMaterialIdHash);
this.sb.AppendFormat("<input offset=\"0\" semantic=\"NORMAL\" source=\"#geom-{0}-normals\"/>\n", documentAndMaterialIdHash);
this.sb.Append("<p>\n");
int num3 = 0;
using (IEnumerator <ModelGeometry> enumerator = geometries.GetEnumerator())
{
while (enumerator.MoveNext())
{
ModelGeometry current = enumerator.Current;
for (int i = 0; i < current.Indices.Count; i++)
{
this.sb.AppendFormat("{0} ", current.Indices[i] + num3);
}
num3 += current.Points.Count;
}
goto IL_2D3;
}
}
this.sb.AppendFormat("<input offset=\"0\" semantic=\"VERTEX\" source=\"#geom-{0}-vertices\"/>\n", documentAndMaterialIdHash);
this.sb.AppendFormat("<input offset=\"0\" semantic=\"TEXCOORD\" source=\"#geom-{0}-map\" set=\"0\"/>\n", documentAndMaterialIdHash);
this.sb.AppendFormat("<input offset=\"1\" semantic=\"NORMAL\" source=\"#geom-{0}-normals\"/>\n", documentAndMaterialIdHash);
this.sb.Append("<p>\n");
int num4 = 0;
int num5 = 0;
foreach (ModelGeometry current2 in geometries)
{
switch (current2.DistributionOfNormals)
{
case 0:
for (int j = 0; j < current2.Indices.Count; j++)
{
this.sb.AppendFormat("{0} {1} ", current2.Indices[j] + num4, current2.Indices[j] + num5);
}
break;
case (DistributionOfNormals)1:
case (DistributionOfNormals)2:
for (int k = 0; k < current2.Indices.Count; k++)
{
this.sb.AppendFormat("{0} {1} ", current2.Indices[k] + num4, num5);
}
break;
}
num4 += current2.Points.Count;
num5 += current2.Normals.Count;
}
IL_2D3:
this.sb.Append("</p>\n");
this.sb.Append("</triangles>\n");
}
/// <summary>
///
/// </summary>
/// <param name="documentAndMaterialIdHash">定义Source的唯一ID</param>
/// <param name="geometries"></param>
private void WriteXmlGeometrySourcePositions(int documentAndMaterialIdHash, IList <ModelGeometry> geometries)
{
Func <ModelGeometry, int> arg_20_1;
if ((arg_20_1 = Inner.T__17_0) == null)
{
arg_20_1 = (Inner.T__17_0 = new Func <ModelGeometry, int>(Inner.T.b__17_0));
}
//计算顶点数
int num = geometries.Sum(arg_20_1);
//source 节点属性
this.sb.AppendFormat("<source id=\"geom-{0}-positions\">\n", documentAndMaterialIdHash);
//source节点下的float_array节点属性
this.sb.AppendFormat("<float_array id=\"geom-{0}-positions-array\" count=\"{1}\">\n", documentAndMaterialIdHash, num * 3);
/* 定义一个范围，在范围结束时处理对象。
* 场景：
* 当在某个代码段中使用了类的实例，而希望无论因为什么原因，只要离开了这个代码段就自动调用这个类实例的Dispose。
* 要达到这样的目的，用try...catch来捕捉异常也是可以的，但用using也很方便。//*/
using (IEnumerator <ModelGeometry> enumerator = geometries.GetEnumerator())
{
while (enumerator.MoveNext())
{
ModelGeometry geometry = enumerator.Current;
//恒等变换不会改变它所应用的点或向量。
if (!geometry.Transform.IsIdentity)
{
//Parallel.For方法，主要用于处理针对数组元素的并行操作(数据的并行) fromInclusive:
// 开始索引（含）。
//
// toExclusive:
// 结束索引（不含）。
//
// body:
// 将为每个迭代调用一次的委托。
//
// 返回结果:
// 包含有关已完成的循环部分的信息的结构。
Parallel.For(0, geometry.Points.Count, delegate(int iPoint)
{
//将变换应用于点并返回结果。
/*Revit 提供了Transform类来做二次开发时的坐标转换。 你可以给Transform对象进行赋值，构造一个变换矩阵。
* 然后使用这个变化矩阵把给定的坐标点的坐标转成目标坐标系。
*
* 初始化Transform，设置其目标坐标系的三个方向向量BasisX，BasisY，BasisZ的值。
* 获得转换矩阵后，可以用Transform.OfPOint（XYZ pt) 把目标点坐标转换到新坐标系的坐标。
* 也可以用Transform.OfVector(XYZ vector) 对向量进行坐标转换。
*
* 注：这里转换后点坐标或向量的单位与输入点或向量的单位相同。默认Revit API所使用的坐标单位都是英尺。
*
* 当然你可以使用第三方的代码做纯粹的坐标转换功能。
*
* Revit API的一些函数需要坐标转换时，都需要Transform类型的。 */
geometry.Points[iPoint] = geometry.Transform.OfPoint(geometry.Points[iPoint]);
});
}
for (int i = 0; i < geometry.Points.Count; i++)
{
XYZ xYZ = geometry.Points[i];
/// 参数:
// provider:
// 一个提供区域性特定的格式设置信息的对象。
//
// format:
// 复合格式字符串（请参见“备注”）。
//
// args:
// 要设置其格式的对象的数组。
//
// 返回结果:
// 完成追加操作后对此实例的引用。 完成追加操作后，此实例包含执行该操作之前已存在的任何数据，
// 并且有一个 format 的副本作为后缀，其中任何格式规范都由相应对象参数的字符串表示形式替换。
//{0:0.###} 格式化字符串
this.sb.AppendFormat(CultureInfo.InvariantCulture.NumberFormat, "{0:0.###} {1:0.###} {2:0.###} ", new object[]
{
xYZ.X,
xYZ.Y,
xYZ.Z
});
}
}
}
//float_array 节点结束
this.sb.Append("</float_array>\n");
this.sb.Append("<technique_common>\n");
//访问器节点
this.sb.AppendFormat("<accessor source=\"#geom-{0}-positions-array\" count=\"{1}\" stride=\"3\">\n", documentAndMaterialIdHash, num);
this.sb.Append("<param name=\"X\" type=\"float\"/>\n");
this.sb.Append("<param name=\"Y\" type=\"float\"/>\n");
this.sb.Append("<param name=\"Z\" type=\"float\"/>\n");
//访问器节点结束
this.sb.Append("</accessor>\n");
this.sb.Append("</technique_common>\n");
this.sb.Append("</source>\n");
}
internal int GetNormalsCount(ModelGeometry item)
{
return(item.Normals.Count);
}
internal int GetPointCount(ModelGeometry item)
{
return(item.Points.Count);
}
private void GeometrySourcePositions(int documentAndMaterialIdHash, IList <ModelGeometry> geometries, string nodename)
{
float_array position_float_array = new float_array();
float_array normal_float_array = new float_array();
float_array uv_float_array = new float_array();
sourceTechnique_common position_technique_common = new sourceTechnique_common();
sourceTechnique_common normal_technique_common = new sourceTechnique_common();
sourceTechnique_common uv_technique_common = new sourceTechnique_common();
Func <ModelGeometry, int> getCount;
if ((getCount = common.T_PointCount) == null)
{
getCount = common.T_PointCount = new Func <ModelGeometry, int>(common.T.GetPointCount);
}
//这是统计geometries - {0} - Pooints - count 数值的和
//应该统计 某项中 Pooints的和
//[0] 算是一个几何体，我们要得到几何体下面的Potints的数量，然后乘以3 得到坐标的数量。
// geometries
// [0]：物体模型
// Points: 点对象
// [0]:包含XYZ的坐标
int num = geometries.Sum(getCount);
// 现在我有了一个数据模型，我要对这个数据模型进行操作！！！
// geometries - geometry - mesh - source - float_array
// 思路，迭代geometries列表，从索引为 0 的第一个ModelGeometry对象geometry获取属性为Point的数量，乘以3得到坐标数量。
var geometriesPonits = geometries.Select(t => t.Points).ToList();
int num1 = geometriesPonits.Count;
library_geometries library_Geometries = new library_geometries
{
geometry = new geometry[geometries.Count] //创建library_geometries中存在的多个geometry对象数组
};
mesh[] geomMesh = new mesh[geometries.Count];
//setting source
//geomMesh.source[0].id = "geom-" + documentAndMaterialIdHash + "-positions";
//position_float_array.id = "geom-" + documentAndMaterialIdHash + "-positions-array";
position_float_array.count = (ulong)(num * 3);//这里有问题3876了都
using (IEnumerator <ModelGeometry> enumerator = geometries.GetEnumerator())
{
while (enumerator.MoveNext())
{
ModelGeometry geometry = enumerator.Current;
if (!geometry.Transform.IsIdentity)
{
Parallel.For(0, geometry.Points.Count, delegate(int iPoint)
{
geometry.Points[iPoint] = geometry.Transform.OfPoint(geometry.Points[iPoint]);
});
}
for (int i = 0; i < geometry.Points.Count; i++)
{
XYZ xYZ = geometry.Points[i];
position_float_array.Values = new double[]
{
xYZ.X,
xYZ.Y,
xYZ.Z
};
// TODO
}
}
}
position_technique_common.accessor = new accessor();
position_technique_common.accessor.param = new param[3];
position_technique_common.accessor.param[0] = new param();
position_technique_common.accessor.param[1] = new param();
position_technique_common.accessor.param[2] = new param();
position_technique_common.accessor.source = "#" + position_float_array.id;
position_technique_common.accessor.count = 3;
position_technique_common.accessor.stride = 3;
position_technique_common.accessor.param[0].name = "X";
position_technique_common.accessor.param[0].type = "float";
position_technique_common.accessor.param[1].name = "Y";
position_technique_common.accessor.param[1].type = "float";
position_technique_common.accessor.param[2].name = "Z";
position_technique_common.accessor.param[2].type = "float";
}
private void ExportSolid2(Solid solid)
{
foreach (Face face in solid.Faces)
{
if (!(face.Equals(null)))
{
Mesh mesh = face.Triangulate(userSetting.LevelOfDetail / 15.0);
if (!(mesh.Equals(null)) && !mesh.Visibility.Equals(Visibility.Invisible))
{
ModelGeometry exportedGeometry = new ModelGeometry();
// 设置坐标系
exportedGeometry.Transform = transformationStack.Peek();
exportedGeometry.Points = new List <XYZ>(mesh.Vertices);
exportedGeometry.Indices = new List <int>(mesh.NumTriangles * 3);
//指示此转换是否为保形的布尔值。指示此转换是否产生反射的布尔值。反射变换会更改坐标系的惯用性。
if (exportedGeometry.Transform.IsConformal && exportedGeometry.Transform.HasReflection)
{
for (int i = 0; i < mesh.NumTriangles; i++)
{
MeshTriangle meshTriangle = mesh.get_Triangle(i);
exportedGeometry.Indices.Add((int)meshTriangle.get_Index(0));
exportedGeometry.Indices.Add((int)meshTriangle.get_Index(2));
exportedGeometry.Indices.Add((int)meshTriangle.get_Index(1));
}
}
else
{
for (int j = 0; j < mesh.NumTriangles; j++)
{
MeshTriangle meshTriangle2 = mesh.get_Triangle(j);
exportedGeometry.Indices.Add((int)meshTriangle2.get_Index(0));
exportedGeometry.Indices.Add((int)meshTriangle2.get_Index(1));
exportedGeometry.Indices.Add((int)meshTriangle2.get_Index(2));
}
}
ModelGeometry TGeometry = exportedGeometry;
//计算模型法线
TGeometry.CalculateNormals(TGeometry.Transform.IsConformal && exportedGeometry.Transform.HasReflection);
exportedGeometry.CalculateUVs(true, false);
//判断是不是反正双面实体
if (face.IsTwoSided)
{
exportedGeometry.MakeDoubleSided();
}
//将当前元素面的材质ID放入元组中（文档，元素材质ID）
ElementId materialElementId = face.MaterialElementId;
Tuple <Document, ElementId> tuple = new Tuple <Document, ElementId>(documentStack.Peek(), materialElementId);
//加入元组索引
ChangeCurrentMaterial(tuple);
//用元组索引将模型加入到模型数据池
documentAndMaterialIdToGeometries[tuple].Add(exportedGeometry);
}
}
}
}