当前位置: 首页>>代码示例>>C#>>正文


C# Curve.IsCircle方法代码示例

本文整理汇总了C#中Rhino.Geometry.Curve.IsCircle方法的典型用法代码示例。如果您正苦于以下问题:C# Curve.IsCircle方法的具体用法?C# Curve.IsCircle怎么用?C# Curve.IsCircle使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Rhino.Geometry.Curve的用法示例。


在下文中一共展示了Curve.IsCircle方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: GetLBCurve

        private LyrebirdCurve GetLBCurve(Curve crv)
        {
            LyrebirdCurve lbc = null;

            List<LyrebirdPoint> points = new List<LyrebirdPoint>();
            if (crv.IsLinear())
            {
                // standard linear element
                points.Add(new LyrebirdPoint(crv.PointAtStart.X, crv.PointAtStart.Y, crv.PointAtStart.Z));
                points.Add(new LyrebirdPoint(crv.PointAtEnd.X, crv.PointAtEnd.Y, crv.PointAtEnd.Z));
                lbc = new LyrebirdCurve(points, "Line");
            }
            else if (crv.IsCircle())
            {
                crv.Domain = new Interval(0, 1);
                points.Add(new LyrebirdPoint(crv.PointAtStart.X, crv.PointAtStart.Y, crv.PointAtStart.Z));
                points.Add(new LyrebirdPoint(crv.PointAt(0.25).X, crv.PointAt(0.25).Y, crv.PointAt(0.25).Z));
                points.Add(new LyrebirdPoint(crv.PointAt(0.5).X, crv.PointAt(0.5).Y, crv.PointAt(0.5).Z));
                points.Add(new LyrebirdPoint(crv.PointAt(0.75).X, crv.PointAt(0.75).Y, crv.PointAt(0.75).Z));
                points.Add(new LyrebirdPoint(crv.PointAtEnd.X, crv.PointAtEnd.Y, crv.PointAtEnd.Z));
                lbc = new LyrebirdCurve(points, "Circle");
            }
            else if (crv.IsArc())
            {
                crv.Domain = new Interval(0, 1);
                // standard arc element
                points.Add(new LyrebirdPoint(crv.PointAtStart.X, crv.PointAtStart.Y, crv.PointAtStart.Z));
                points.Add(new LyrebirdPoint(crv.PointAt(0.5).X, crv.PointAt(0.5).Y, crv.PointAt(0.5).Z));
                points.Add(new LyrebirdPoint(crv.PointAtEnd.X, crv.PointAtEnd.Y, crv.PointAtEnd.Z));
                lbc = new LyrebirdCurve(points, "Arc");
            }
            else
            {
                // Spline
                // Old line: if (crv.Degree >= 3)
                if (crv.Degree == 3)
                {
                    NurbsCurve nc = crv as NurbsCurve;
                    if (nc != null)
                    {
                        List<LyrebirdPoint> lbPoints = new List<LyrebirdPoint>();
                        List<double> weights = new List<double>();
                        List<double> knots = new List<double>();

                        foreach (ControlPoint cp in nc.Points)
                        {
                            LyrebirdPoint pt = new LyrebirdPoint(cp.Location.X, cp.Location.Y, cp.Location.Z);
                            double weight = cp.Weight;
                            lbPoints.Add(pt);
                            weights.Add(weight);
                        }
                        for (int k = 0; k < nc.Knots.Count; k++)
                        {
                            double knot = nc.Knots[k];
                            // Add a duplicate knot for the first and last knot in the Rhino curve.
                            // Revit needs 2 more knots than Rhino to define a spline.
                            if (k == 0 || k == nc.Knots.Count - 1)
                            {
                                knots.Add(knot);
                            }
                            knots.Add(knot);
                        }

                        lbc = new LyrebirdCurve(lbPoints, weights, knots, nc.Degree, nc.IsPeriodic) { CurveType = "Spline" };
                    }
                }
                else
                {
                    const double incr = 1.0 / 100;
                    List<LyrebirdPoint> pts = new List<LyrebirdPoint>();
                    List<double> weights = new List<double>();
                    for (int i = 0; i <= 100; i++)
                    {
                        Point3d pt = crv.PointAtNormalizedLength(i * incr);
                        LyrebirdPoint lbp = new LyrebirdPoint(pt.X, pt.Y, pt.Z);
                        weights.Add(1.0);
                        pts.Add(lbp);
                    }

                    lbc = new LyrebirdCurve(pts, "Spline") { Weights = weights, Degree = crv.Degree };
                }
            }

            return lbc;
        }
开发者ID:ramonvanderheijden,项目名称:Lyrebird,代码行数:85,代码来源:GHClient.cs


注:本文中的Rhino.Geometry.Curve.IsCircle方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。