/// <summary>
/// Surface： 划分Delaunay三角网，结果保存于tsData
/// </summary>
/// <param name="se">曲面插值函数</param>
public void MeshSurface(SurfaceEquation se)
{
try
{
triangulations = Triangulation.CreateDelaunay(this.allVerticesList);
this.TsData.VerticesList = new List <Point3D>(this.allVerticesList.Count);
this.TsData.TriLinksList = new List <TriLink>(this.triangulations.Cells.Count());
// 以Dict记录三角形的编号
int num = 1;
foreach (var cell in this.triangulations.Cells)
{
for (int i = 0; i < 3; ++i)
{
var v = cell.Vertices[i];
if (!this.vertexnumDictionary.ContainsKey(v))
{
this.vertexnumDictionary.Add(v, num++);
}
}
// 根据编号写ts的TriLinksList
this.TsData.TriLinksList.Add(new TriLink
{
VertexA = this.vertexnumDictionary[cell.Vertices[0]],
VertexB = this.vertexnumDictionary[cell.Vertices[1]],
VertexC = this.vertexnumDictionary[cell.Vertices[2]]
});
}
// 写ts的VerticesList, 并插值Z
foreach (var kv in this.vertexnumDictionary.OrderBy(n => n.Value))
{
double[] vPos = kv.Key.Position;
var x = vPos[0];
var y = vPos[1];
var z = se.GetInterpolateValue(x, y);
this.TsData.VerticesList.Add(new Point3D(x, y, z));
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
/// <summary>
/// 生成曲面
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonXBuild_Click(object sender, EventArgs e)
{
double attitudeL = this.doubleInputAttitudeLength.Value;
double shapeR = this.doubleInputShapeRadium.Value;
// 生成产状数据集
double nx = 0.0, ny = 0.0, nz = 0.0;
List <Point> sourceAttitudePoints = new List <Point>(this.targetMarkersList.Count * 4);
foreach (var marker in this.targetMarkersList)
{
nx += Math.Sin(marker.MyDip * Math.PI / 180) * Math.Sin(marker.MyAngle * Math.PI / 180)
/ this.targetMarkersList.Count;
ny += Math.Cos(marker.MyDip * Math.PI / 180) * Math.Sin(marker.MyAngle * Math.PI / 180)
/ this.targetMarkersList.Count;
nz += Math.Cos(marker.MyAngle * Math.PI / 180) / this.targetMarkersList.Count;
double dx = -Math.Tan(marker.MyAngle * Math.PI / 180) * Math.Cos(marker.MyDip * Math.PI / 180);
double dy = -Math.Tan(marker.MyAngle * Math.PI / 180) * Math.Sin(marker.MyDip * Math.PI / 180);
Point northPoint = new Point(
marker.X,
marker.Y + attitudeL,
marker.Z + dy * attitudeL);
Point southPoint = new Point(
marker.X,
marker.Y - attitudeL,
marker.Z - dy * attitudeL);
Point eastPoint = new Point(
marker.X + attitudeL,
marker.Y,
marker.Z + dx * attitudeL);
Point westPoint = new Point(
marker.X - attitudeL,
marker.Y,
marker.Z - dx * attitudeL);
sourceAttitudePoints.AddRange(new[] { northPoint, southPoint, eastPoint, westPoint });
}
Point middlePoint = CurveAlgorithm.MiddlePointOfPoints(this.targetMarkersList);
// 平均产状平面
Vector3D n = new Vector3D(nx, ny, nz);
var plane = new MathNet.Spatial.Euclidean.Plane(
new Point3D(middlePoint.X, middlePoint.Y, middlePoint.Z),
n.Normalize());
double a0 = -plane.D / plane.C;
double a1 = -plane.A / plane.C;
double a2 = -plane.B / plane.C;
// 插值点数据集
List <Point> sourcePoints = new List <Point>(this.targetMarkersList);
sourcePoints.AddRange(sourceAttitudePoints);
SurfaceEquation surfaceEquation = new SurfaceEquation(a0, a1, a2, sourcePoints, shapeR);
// 确定曲面区域
List <Point> edgePoints = CurveAlgorithm.GetEdgePoints(sourcePoints, this.GridEdgeLength);
// 区域内插加密点 GeoHelper.InsertPointsInPolygon
List <Point> pointsList = GeoHelper.InsertPointsInPolygon(edgePoints, this.GridEdgeLength);
// 生成网格 Triangulations
Triangulations tris = new Triangulations(pointsList, new List <Point>());
// 计算插值 SurfaceMesh
tris.MeshSurface(surfaceEquation);
// 绘制曲面
IColor66 fillColor = this.sgworld.Creator.CreateColor(128, 128, 128, 128);
IColor66 lineColor = this.sgworld.Creator.CreateColor(255, 255, 255, 0);
var parentGid = GeoHelper.CreateGroup("产状地质曲面", ref this.sgworld);
Facet facet = new Facet(ref this.sgworld, tris.TsData, "Test", parentGid, lineColor, fillColor);
// facet.DrawFacet();
// 保存三角网结果
TsFile ts = new TsFile(
tris.TsData,
"TSurf",
"M",
"JGM",
"Name",
new List <string>());
ts.WriteTsFile();
ts.UpdateTsFile(ref this.db);
ToastNotification.Show(this, "曲面模型已保存为模型部件", 2500, eToastPosition.MiddleCenter);
}