public Point GetPointOfIntersection(Point beginPoint, Point endPoint, DirectionMoveType type)
{
double endPointRadius = 4;
double beginPointRadius = 4;
Point p = new Point();
//if (Type == FlowNodeType.INTERACTION
// || Type == FlowNodeType.AND_MERGE
// || Type == FlowNodeType.OR_MERGE
// || Type == FlowNodeType.VOTE_MERGE
// )
//{
#region
if (Math.Abs(endPoint.X - beginPoint.X) <= PictureWidth / 2 &&
Math.Abs(endPoint.Y - beginPoint.Y) <= PictureHeight / 2)
{
p = endPoint;
}
else
{
//起始点坐标和终点坐标之间的夹角（相对于Y轴坐标系）
double angle = Math.Abs(Math.Atan((endPoint.X - beginPoint.X) / (endPoint.Y - beginPoint.Y)) * 180.0 / Math.PI);
//节点的长和宽之间的夹角（相对于Y轴坐标系）
double angel2 = Math.Abs(Math.Atan(PictureWidth / PictureHeight) * 180.0 / Math.PI);
//半径
double radio = PictureHeight < PictureWidth ? PictureHeight / 2 : PictureWidth / 2;
if (angle <= angel2) //起始点坐标在终点坐标的上方,或者下方
{
if (endPoint.Y < beginPoint.Y) //在上方
{
if (endPoint.X < beginPoint.X)
{
p.X = endPoint.X + Math.Tan(Math.PI * angle / 180.0) * radio;
}
else
{
p.X = endPoint.X - Math.Tan(Math.PI * angle / 180.0) * radio;
}
p.Y = endPoint.Y + PictureHeight / 2;
}
else//在下方
{
if (endPoint.X < beginPoint.X)
{
p.X = endPoint.X + Math.Tan(Math.PI * angle / 180.0) * radio;
}
else
{
p.X = endPoint.X - Math.Tan(Math.PI * angle / 180.0) * radio;
}
p.Y = endPoint.Y - PictureHeight / 2;
}
}
else//左方或者右方
{
if (endPoint.X < beginPoint.X)//在右方
{
p.X = endPoint.X + PictureWidth / 2;
if (endPoint.Y < beginPoint.Y)
{
p.Y = endPoint.Y + Math.Tan(Math.PI * (90 - angle) / 180.0) * radio;
}
else
{
p.Y = endPoint.Y - Math.Tan(Math.PI * (90 - angle) / 180.0) * radio;
}
}
else//在左方
{
p.X = endPoint.X - PictureWidth / 2;
if (endPoint.Y < beginPoint.Y)
{
p.Y = endPoint.Y + Math.Tan(Math.PI * (90 - angle) / 180.0) * radio;
}
else
{
p.Y = endPoint.Y - Math.Tan(Math.PI * (90 - angle) / 180.0) * radio;
}
}
}
}
if (type == DirectionMoveType.End)
{
p.X -= endPointRadius;
p.Y -= endPointRadius;
}
if (type == DirectionMoveType.Begin)
{
p.X -= beginPointRadius;
p.Y -= beginPointRadius;
}
#endregion
// }
//else if (Type == FlowNodeType.INITIAL
// || Type == FlowNodeType.COMPLETION
// || Type == FlowNodeType.AUTOMATION
// || Type == FlowNodeType.DUMMY
// || Type == FlowNodeType.SUBPROCESS || Type == FlowNodeType.STATIONODE)
//{
// #region
// if (Math.Abs(endPoint.X - beginPoint.X) <= PictureWidth / 2
// && Math.Abs(endPoint.Y - beginPoint.Y) <= PictureHeight / 2)
// {
// p = endPoint;
// }
// else
// {
// double radial = (PictureWidth < PictureHeight ? PictureWidth : PictureHeight) / 2;
// double bc = Math.Sqrt((endPoint.X - beginPoint.X) * (endPoint.X - beginPoint.X) + (endPoint.Y - beginPoint.Y) * (endPoint.Y - beginPoint.Y));
// p.X = endPoint.X - (endPoint.X - beginPoint.X) * radial / bc;
// p.Y = endPoint.Y - (endPoint.Y - beginPoint.Y) * radial / bc;
// }
// if (type == DirectionMoveType.End)
// {
// p.X -= endPointRadius;
// p.Y -= endPointRadius;
// }
// if (type == DirectionMoveType.Begin)
// {
// p.X -= beginPointRadius;
// p.Y -= beginPointRadius;
// }
// #endregion
//}
//else if (Type == FlowNodeType.AND_BRANCH
// || Type == FlowNodeType.OR_BRANCH
// )
//{
// if (Math.Abs(endPoint.X - beginPoint.X) <= PictureWidth / 2
// && Math.Abs(endPoint.Y - beginPoint.Y) <= PictureHeight / 2)
// {
// p = endPoint;
// if (type == DirectionMoveType.End)
// {
// p.X -= endPointRadius;
// p.Y -= endPointRadius;
// }
// if (type == DirectionMoveType.Begin)
// {
// p.X -= beginPointRadius;
// p.Y -= beginPointRadius;
// }
// }
// else
// {
// //double angle = Math.Abs(Math.Atan((endPoint.X - beginPoint.X) / (endPoint.Y - beginPoint.Y)) * 180.0 / Math.PI);
// //if (angle < 45)
// //{
// // if (endPoint.Y < beginPoint.Y)
// // {
// // p = ThisPointCollection[2];
// // }
// // else
// // {
// // p = ThisPointCollection[0];
// // }
// //}
// //else
// //{
// // if (endPoint.X < beginPoint.X)
// // {
// // p = ThisPointCollection[1];
// // }
// // else
// // {
// // p = ThisPointCollection[3];
// // }
// //}
// double x = 0, y = 0;
// double tan = Math.Abs((endPoint.Y - beginPoint.Y) / (beginPoint.X - endPoint.X));
// if (endPoint.X <= beginPoint.X && endPoint.Y >= beginPoint.Y)//右上
// {
// y = (endPoint.Y + (ThisPointCollection[0].Y + (double)GetValue(Canvas.TopProperty)) * tan) / (1 + tan);
// x = (endPoint.Y - y) / tan + endPoint.X;
// }
// else if (this.CenterPoint.X <= beginPoint.X && this.CenterPoint.Y <= beginPoint.Y)//右下
// {
// y = (endPoint.Y + (ThisPointCollection[2].Y + (double)GetValue(Canvas.TopProperty)) * tan) / (1 + tan);
// x = (y - endPoint.Y) / tan + endPoint.X;
// }
// else if (this.CenterPoint.X >= beginPoint.X && this.CenterPoint.Y >= beginPoint.Y)//左上
// {
// y = (endPoint.Y + (ThisPointCollection[0].Y + (double)GetValue(Canvas.TopProperty)) * tan) / (1 + tan);
// x = (y - endPoint.Y) / tan + endPoint.X;
// }
// else if (this.CenterPoint.X >= beginPoint.X && this.CenterPoint.Y <= beginPoint.Y)//左下
// {
// y = (endPoint.Y + (ThisPointCollection[2].Y + (double)GetValue(Canvas.TopProperty)) * tan) / (1 + tan);
// x = (endPoint.Y - y) / tan + endPoint.X;
// }
// p.Y = y;
// p.X = x;
// if (type == DirectionMoveType.End)
// {
// p.X += -endPointRadius;
// p.Y += -endPointRadius;
// }
// if (type == DirectionMoveType.Begin)
// {
// p.X += -beginPointRadius;
// p.Y += -beginPointRadius;
// }
// }
//}
return(p);
}
public Point GetPointOfIntersection(Point beginPoint, Point endPoint, DirectionMoveType type)
{
return(new Point(0, 0));
}
