/// <summary>
/// 在两条线之间生成指定数量的曲线
/// </summary>
/// <param name="curve1">第一条</param>
/// <param name="curve2">第二条</param>
/// <param name="number">数量</param>
/// <param name="accuracy">精度，如是直线和忽略</param>
/// <param name="contain">是否包含起始</param>
/// <returns>生成的曲线</returns>
public static List <Curve> ByBetweenTwoCurves(Curve curve1, Curve curve2, int number, int accuracy = 2, bool contain = false)
{
List <Curve> outCurves = new List <Curve>();
int n = number;
if (!contain)
{
n = number + 2;
}
double[] parameters = new double[n];
for (int i = 0; i < n; i++)
{
if (i == n)
{
parameters[i] = 1;
}
else
{
parameters[i] = i * (1.0 / (n - 1));
}
}
// 如果为Line
if ((curve1 as Line) != null && (curve2 as Line) != null)
{
if (!DetermineDirection(curve1, curve2))
{
curve2 = curve2.Reverse();
}
var line1 = Line.ByStartPointEndPoint(curve1.StartPoint, curve2.StartPoint);
var line2 = Line.ByStartPointEndPoint(curve1.EndPoint, curve2.EndPoint);
List <Point> ptList1 = new List <Point>();
List <Point> ptList2 = new List <Point>();
foreach (var i in parameters)
{
ptList1.Add(line1.PointAtParameter(i));
ptList2.Add(line2.PointAtParameter(i));
}
for (int i = 0; i < n; i++)
{
var crv = Line.ByStartPointEndPoint(ptList1[i], ptList2[i]);
outCurves.Add(crv);
}
}
// 如果为PolyCurve
else if ((curve1 as PolyCurve) != null || (curve2 as PolyCurve) != null)
{
throw new Exception("暂不支持PolyCurve!");
}
else
{
List <Curve> crossCurves = new List <Curve>()
{
curve1, curve2
};
Surface surface = Surface.ByLoft(crossCurves);
outCurves = ByAlongSurface(surface, number, accuracy, 0);
surface.Dispose();
}
if (!contain)
{
outCurves.RemoveAt(0);
outCurves.RemoveAt(outCurves.Count - 1);
}
return(outCurves);
}
