//逐点插入法2
public Edge[] PointByPointInsertion()
{
EdgeSet sEdgeSet = new EdgeSet();
TriangleSet sTriangleSet = new TriangleSet();
MinBoundRect sMBR = this.mPointSet.MBR;
double width = sMBR.MaxX - sMBR.MinX;
double height = sMBR.MaxY - sMBR.MinY;
double middlePointX = (sMBR.MaxX + sMBR.MinX) / 2;
double middlePointY = sMBR.MinY;
DataPoint P0 = new DataPoint(-1, "P0", middlePointX - width, middlePointY, 0);
DataPoint P1 = new DataPoint(-2, "P1", middlePointX + width, middlePointY, 0);
DataPoint P2 = new DataPoint(-3, "P2", middlePointX, middlePointY + 2 * height, 0);
Triangle T0 = new Triangle(P0, P1, P2, -1);
sTriangleSet.AddTriangle(T0);
sEdgeSet.AddEdge(new Edge(P0, P1));
sEdgeSet.AddEdge(new Edge(P1, P2));
sEdgeSet.AddEdge(new Edge(P1, P0));
foreach (var point in mPointSet.PointList)
{
Triangle CurTri = sTriangleSet.GetPointInsidesTri(point);
if (CurTri != null)
{
}
}
return(sEdgeSet.EdgeList.ToArray());
}
public bool LoadPointSet(PointSet pointset, double frameScaling = 1.2)
{
try
{
this.PointSet = pointset;
this.FrameScaling = frameScaling;
//重绘
MinBoundRect pointMBR = pointset.MBR;
CenterPoint = new PointF((float)(pointMBR.MaxX + pointMBR.MinX) / 2,
(float)(pointMBR.MaxY + pointMBR.MinY) / 2);
double pointSetWidth = pointMBR.MaxX - pointMBR.MinX;
double pointSetHeight = pointMBR.MaxY - pointMBR.MinY;
this.ZoomScale = Math.Min(this.Height / (pointSetHeight),
this.Width / (pointSetWidth)) / frameScaling;
MBR_Origin = new MinBoundRect(CenterPoint.X - pointSetWidth * frameScaling / 2,
CenterPoint.Y - pointSetHeight * frameScaling / 2,
CenterPoint.X + pointSetWidth * frameScaling / 2,
CenterPoint.Y + pointSetHeight * frameScaling / 2);
OffsetX = MBR_Origin.MinX;
OffsetY = MBR_Origin.MinY;
Zoom = ZoomScale;
UserOperation = UserOperationType.DisplayThePointSet;
return(true);
}
catch { return(false); }
}
