/// <summary>
/// 判断线是否重合
/// </summary>
/// <param name="crv1"></param>
/// <param name="crv2"></param>
/// <returns></returns>
public static bool JudgeDuplicateCurves(Autodesk.DesignScript.Geometry.Curve crv1
, Autodesk.DesignScript.Geometry.Curve crv2)
{
Autodesk.DesignScript.Geometry.Point pt1 = crv1.StartPoint;
Autodesk.DesignScript.Geometry.Point pt2 = crv1.EndPoint;
bool b1 = JudgeDuplicatePoints(pt1, crv2.StartPoint) &&
JudgeDuplicatePoints(pt2, crv2.EndPoint);
bool b2 = JudgeDuplicatePoints(pt1, crv2.EndPoint) &&
JudgeDuplicatePoints(pt2, crv2.StartPoint);
bool b3 = crv1.TangentAtParameter(0.3).IsParallel(crv2.TangentAtParameter(0.3)) || crv1.TangentAtParameter(0.3).IsParallel(crv2.TangentAtParameter(0.7));
if ((b1 || b2) && b3)
{
return(true);
}
return(false);
}
/// <summary>
/// 判断两条曲线相等(通过两条曲线上的点来判断精确度越高判断越准确
/// </summary>
/// <param name="curve"></param>
/// <param name="curve2"></param>
/// <param name="Accuracy"></param>
/// <returns></returns>
public static bool IsAlmostEqualsTo(this DyCurve curve, DyCurve curve2, int Accuracy = 100)
{
//判断从0到1的 分段点上 点相等 而且 所在点的切线平行
double accuracyPercent = -1;
if (Accuracy == 0)
{
throw new Exception("wrong parameter");
}
for (int i = 0; i <= Accuracy; i++)
{
accuracyPercent = i == 0?0:i / Accuracy;
if (!curve.PointAtParameter(accuracyPercent).IsAlmostEqualTo(curve2.PointAtParameter(accuracyPercent)) ||
!curve.TangentAtParameter(accuracyPercent).IsParallel(curve2.TangentAtParameter(accuracyPercent))
)
{
return(false);
}
}
return(true);
}
