/// <summary>
/// 判断当前面是否与某个面相关联
/// </summary>
/// <param name="face">判断是否关联的面</param>
/// <param name="associateDist">容忍值，就是容差</param>
/// <param name="peakValue">距离值，属于特定的距离判定</param>
/// <returns></returns>
internal bool IsAssocaitedWithAnotherFace(PartFace anotherFace, double associateDist, double peakValue)
{
/*
* 判断原则
* 1、两个面平行且距离小于某个固定值
* 2、指令面的所有顶点，投影到被关联面，至少有一个点位于关联面的内部
* 3、如果是开槽关联，则上述两条不适用
*/
//如果他们是同一个板件的不同面，永远都是不关联的
if (this.Part == anotherFace.Part)
return false;
//如果两个面不平行，那也是不关联的
//TODO:这里用到了Plane属于CAD的实体，是否会造成内存泄漏？
if (!anotherFace.Plane.IsParallelTo(this.Plane))
{
return false;
}
//如果面试四个水平边，也不进行判断，（考虑到开槽、层板孔指令的适用范围）
if (anotherFace.IsHorizontalFace)
return false;
////不再做距离关联，距离的判断放到点的判断中
////如果两个面的距离大于一定距离也就不关联
//if (anotherFace.Plane.DistanceTo(this.Point1) > dist)
//{
// return false;
//}
//需要判断两件事情：
//1、距离的判断，如嵌入的深度等等
//2、板件是否嵌入，嵌入一个点还是两个点等等
if (!IsDistEnough(anotherFace, this.Point1, peakValue, associateDist))
return false;
//用using，使用完就销毁掉这些对象
using (Line line1 = new Line(this.Point1, this.Point4))
using (Line line2 = new Line(this.Point2, this.Point3))
using (Line fLine1 = new Line(anotherFace.Point1, anotherFace.Point2))
using (Line fLine2 = new Line(anotherFace.Point2, anotherFace.Point3))
using (Line fLine3 = new Line(anotherFace.Point3, anotherFace.Point4))
using (Line fLine4 = new Line(anotherFace.Point4, anotherFace.Point1))
{
using (Line line1Project = line1.GetOrthoProjectedCurve(anotherFace.Plane) as Line)
using (Line line2Project = line2.GetOrthoProjectedCurve(anotherFace.Plane) as Line)
{
Line[] lines = new Line[] { fLine1, fLine2, fLine3, fLine4 };
foreach (Line l in lines)
{
Point3dCollection pts1 = new Point3dCollection();
Point3dCollection pts2 = new Point3dCollection();
l.IntersectWith(line1Project, Intersect.OnBothOperands, pts1, IntPtr.Zero, IntPtr.Zero);
if (pts1.Count > 0)
return true;
l.IntersectWith(line2Project, Intersect.OnBothOperands, pts2, IntPtr.Zero, IntPtr.Zero);
if (pts2.Count > 0)
return true;
}
}
}
return false;
}