public void EllipseArc_Basic() { var o = Point.ByCoordinates(1, 2, 3); var n = Vector.ByCoordinates(2, 3, 4, true); var pl = Autodesk.DesignScript.Geometry.Plane.ByOriginNormal(o, n); var ellipseArc = EllipseArc.ByPlaneRadiiStartAngleSweepAngle(pl, 10, 5, 45, 90); var revitCurve = ellipseArc.ToRevitType(false); Assert.NotNull(revitCurve); Assert.IsAssignableFrom <Autodesk.Revit.DB.Ellipse>(revitCurve); var revitEllipse = (Autodesk.Revit.DB.Ellipse)revitCurve; revitEllipse.GetEndParameter(0).ToDegrees().ShouldBeApproximately(ellipseArc.StartAngle); revitEllipse.GetEndParameter(1).ToDegrees().ShouldBeApproximately(ellipseArc.StartAngle + ellipseArc.SweepAngle); revitEllipse.GetEndPoint(0).ShouldBeApproximately(ellipseArc.StartPoint); revitEllipse.GetEndPoint(1).ShouldBeApproximately(ellipseArc.EndPoint); revitEllipse.Length.ShouldBeApproximately(ellipseArc.Length); // ClosestPointTo fails in ProtoGeometry var tessPts = revitEllipse.Tessellate().Select(x => x.ToPoint(false)); //assert the tesselation is very close to original curve foreach (var pt in tessPts) { var closestPt = ellipseArc.ClosestPointTo(pt); Assert.Less(closestPt.DistanceTo(pt), 1e-6); } }
private static Autodesk.DesignScript.Geometry.Curve Convert(Autodesk.Revit.DB.Ellipse crv) { var isFullEllipse = !crv.IsBound || Math.Abs(Math.Abs(crv.GetEndParameter(1) - crv.GetEndParameter(0)) - 2 * Math.PI) < 1e-6; if (isFullEllipse) { return (Autodesk.DesignScript.Geometry.Ellipse.ByOriginVectors( crv.Center.ToPoint(false), (crv.XDirection * crv.RadiusX).ToVector(false), (crv.YDirection * crv.RadiusY).ToVector(false))); } // We need to define the major and minor axis as the curve // will be trimmed starting from the major axis (not the xaxis) var major = Math.Max(crv.RadiusX, crv.RadiusY); var minor = Math.Min(crv.RadiusX, crv.RadiusY); Vector majorAxis; Vector minorAxis; double startParam; var span = Math.Abs(crv.GetEndParameter(0) - crv.GetEndParameter(1)).ToDegrees(); if (crv.RadiusX > crv.RadiusY) { majorAxis = crv.XDirection.ToVector(); minorAxis = crv.YDirection.ToVector(); startParam = crv.GetEndParameter(0).ToDegrees(); } else { majorAxis = crv.YDirection.ToVector().Reverse(); minorAxis = crv.XDirection.ToVector(); startParam = crv.GetEndParameter(0).ToDegrees() + 90; } using (var pl = Plane.ByOriginXAxisYAxis(crv.Center.ToPoint(false), majorAxis, minorAxis)) { return(EllipseArc.ByPlaneRadiiStartAngleSweepAngle(pl, major, minor, startParam, span)); } }
private static Autodesk.DesignScript.Geometry.Curve Convert(Autodesk.Revit.DB.Ellipse crv) { var isComplete = !crv.IsBound || Math.Abs(Math.Abs(crv.GetEndParameter(1) - crv.GetEndParameter(0)) - 2 * Math.PI) < 1e-6; if (!isComplete) { var pl = Plane.ByOriginXAxisYAxis(crv.Center.ToPoint(), crv.XDirection.ToVector(), crv.YDirection.ToVector()); var s = crv.GetEndParameter(0).ToDegrees(); var e = crv.GetEndParameter(1).ToDegrees(); return(EllipseArc.ByPlaneRadiiStartAngleSweepAngle(pl, crv.RadiusX, crv.RadiusY, s, e - s)); } return(Autodesk.DesignScript.Geometry.Ellipse.ByOriginVectors(crv.Center.ToPoint(), (crv.XDirection * crv.RadiusX).ToVector(), (crv.YDirection * crv.RadiusY).ToVector())); }