本文整理匯總了C#中System.Line.ClosestParameter方法的典型用法代碼示例。如果您正苦於以下問題：C# Line.ClosestParameter方法的具體用法？C# Line.ClosestParameter怎麽用？C# Line.ClosestParameter使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Line的用法示例。
在下文中一共展示了Line.ClosestParameter方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: ClosestParameter
/// <summary>
/// Gets the parameter along the polyline which is closest to a test-point.
/// </summary>
/// <param name="testPoint">Point to approximate.</param>
/// <returns>The parameter along the polyline closest to testPoint.</returns>
public double ClosestParameter(Point3d testPoint)
{
int count = Count;
if (count < 2) { return 0.0; }
int s_min = 0;
double t_min = 0.0;
double d_min = double.MaxValue;
for (int i = 0; i < count - 1; i++)
{
Line seg = new Line(this[i], this[i + 1]);
double d;
double t;
if (seg.Direction.IsTiny(1e-32))
{
t = 0.0;
d = this[i].DistanceTo(testPoint);
}
else
{
t = seg.ClosestParameter(testPoint);
if (t <= 0.0) { t = 0.0; }
else if (t > 1.0) { t = 1.0; }
d = seg.PointAt(t).DistanceTo(testPoint);
}
if (d < d_min)
{
d_min = d;
t_min = t;
s_min = i;
}
}
return s_min + t_min;
}