/// <summary>
/// 判断点是否在曲线范围内
/// </summary>
/// <param name="outLine">范围线</param>
/// <param name="point">点</param>
/// <param name="tolerance">容差</param>
/// <returns></returns>
public static bool IsInside(Polyline outLine, Point2d point, Tolerance tolerance)
{
var outL = outLine.Clone() as Polyline;
if (!outL.Closed)
{
outL.Closed = true;
}
var closestPoint = outL.GetClosestPointTo(point.ToPoint3d(), false);
if (closestPoint.IsEqualTo(point.ToPoint3d(), tolerance))
{
return(true);
}
var ray = new Ray();
ray.BasePoint = point.ToPoint3d();
ray.UnitDir = new Vector3d(1, 0, 0);
Point3dCollection points = new Point3dCollection();
ray.IntersectWith(outL, Intersect.OnBothOperands, points, 0, 0);
if (points.Count % 2 == 1)
{
return(true);
}
return(false);
}
/// <summary>
/// 指定基点与旋转角度旋转实体
/// </summary>
/// <param name="ent">实体对象</param>
/// <param name="basePt">基点</param>
/// <param name="angle">旋转角度</param>
public static void Rotate(this Entity ent, Point2d basePt, double angle)
{
Matrix3d mt = Matrix3d.Rotation(angle, Vector3d.ZAxis, basePt.ToPoint3d());
ent.TransformBy(mt);
}