private static void MoveCurrCurveAndExtend(ref Curve currCurve, Curve preCurve, double distance)
{
//先把第二条直线移动到和前一条直线共线
XYZ dir = currCurve.GetNormalInXoy(preCurve.GetEndPoint(0));
currCurve = currCurve.CreateTransformed(Transform.CreateTranslation(dir * distance));
var pts = CurveUtils.ComputeClosestEndPoints(preCurve, currCurve);
if (!pts[0].IsAlmostEqualTo(pts[1]))
{
var starPoint = pts[0];
var endPoint = currCurve.GetEndPoint(1);
Curve currTemp = currCurve.Clone();
currTemp.MakeUnbound();
IntersectionResult intersectionResult;
intersectionResult = currTemp.Project(starPoint);
double start = intersectionResult.Parameter;
intersectionResult = currTemp.Project(endPoint);
double end = intersectionResult.Parameter;
currTemp.MakeBound(start, end);
currCurve = currTemp.Clone();
}
}
private static bool DealWithCurrTwoCurvres(ref Curve currCurve, ref Curve preCurve, out Line tempLine, double tolerance)
{
bool isMovedCurrCurve = false;
tempLine = null;
if (preCurve.GetEndPoint(1).IsAlmostEqualTo(currCurve.GetEndPoint(0)))
{//首尾相连，不需要处理
}
else
{//需要处理
bool isParallel = CurveUtils.IsAlmostParallelToByAngle(preCurve, currCurve);
if (isParallel)
{//平行，求距离，距离小于300mm，将第二条直线移动到第一条直线的延长线上；否则直接相连
double distance = preCurve.DistanceTo(currCurve);
if (distance <= tolerance /*&& distance > 1e-6*/)
{
isMovedCurrCurve = true;
MoveCurrCurveAndExtend(ref currCurve, preCurve, distance);
}
else
{
//直接相连
var pts = CurveUtils.ComputeClosestEndPoints(preCurve, currCurve);
if (!pts[0].IsAlmostEqualTo(pts[1]))
{
tempLine = Line.CreateBound(pts[0], pts[1]);
}
}
}
else
{//不平行，延长两条线，求交点
ExtendTwoCurves(ref currCurve, ref preCurve);
}
}
return(isMovedCurrCurve);
}