public void Arc3DTest_0001()
{
var tol = 1e-7;
var p1 = new Vector3D("X = 13.87329226 Y = 134.93466652 Z = -3.70729037");
var p2 = new Vector3D("X = 75.89230418 Y = 224.11406806 Z = 35.97437873");
var p3 = new Vector3D("X = 97.48181688 Y = 229.31008314 Z = 16.9314998");
var arc = new Arc3D(tol, p1, p2, p3);
var plo = new Vector3D("X = -74.96786784 Y = 178.50832685 Z = -43.45380285");
var plx = new Vector3D("X = 61.65932598 Y = 313.82398026 Z = -33.75931542");
var ply = new Vector3D("X = 87.35160811 Y = 8.94741958 Z = 35.66234059");
var plcs = new CoordinateSystem3D(plo, plx - plo, ply - plo);
var iSegmentPts = arc.Intersect(tol, plcs, only_perimeter: false).ToList();
var i1 = iSegmentPts[0];
var i2 = iSegmentPts[1];
var iSegment = new Line3D(i1, i2);
Assert.True(plcs.Contains(tol, i1));
Assert.True(plcs.Contains(tol, i2));
Assert.True(arc.Contains(tol, i1, onlyPerimeter: false));
Assert.True(arc.Contains(tol, i2, onlyPerimeter: false));
Assert.True(i1.EqualsTol(tol, new Vector3D("X = 40.09735573 Y = 156.48945821 Z = -7.46179105")));
Assert.True(i2.EqualsTol(tol, new Vector3D("X = 72.20796391 Y = 188.29182351 Z = -5.18335819")));
}
public void Arc3DTest_001()
{
var o = new Vector3D(4.4249, 1.0332, -3.7054);
var cs_ = new CoordinateSystem3D(o,
new Vector3D(-.1201, 4.4926, 1.4138),
new Vector3D(-1.6282, 3.2952, 2.1837));
// build cs for arc with same cad representation
var csCAD = new CoordinateSystem3D(o, cs_.BaseZ, CoordinateSystem3DAutoEnum.AAA);
var r = 4.2753;
var ang1 = 63.97731d.ToRad();
var ange2 = 26.10878d.ToRad();
var arc = new Arc3D(1e-4, csCAD, r, ang1, ange2);
var c = new Circle3D(arc);
var seg_i = new Line3D(2.2826, 10.2516, -3.7469, 1.3767, -3.7709, 1.5019);
var ip_circ = c.Intersect(1e-4, seg_i, segment_mode: false);
var ip_arc = arc.Intersect(1e-2, seg_i);
// segment intersecting arc
Assert.True(ip_circ.Count() == 1);
Assert.True(ip_circ.First().EqualsTol(1e-4, ip_arc.First()));
Assert.True(ip_circ.First().EqualsTol(1e-2, 1.83, 3.24, -1.12));
// segment not intersecting arc
var seg_i2 = seg_i.Scale(seg_i.From, .3);
Assert.True(c.Intersect(1e-4, seg_i2, segment_mode: true).Count() == 0);
Assert.True(arc.Intersect(1e-4, seg_i2, segment_mode: true).Count() == 0);
// segment not intersecting, but line intersecting arc
Assert.True(c.Intersect(1e-4, seg_i2, segment_mode: false).Count() == 1);
Assert.True(c.Intersect(1e-4, seg_i2, segment_mode: false).First().EqualsTol(1e-4, ip_arc.First()));
// segment intresecting circle, but not arc
var seg_e = new Line3D(2.4523, 9.6971, -1.8004, 4.6142, -.0631, -2.0519);
Assert.True(c.Intersect(1e-4, seg_e, segment_mode: false).Count() == 1);
Assert.True(c.Intersect(1e-4, seg_e, segment_mode: false).First().EqualsTol(1e-2, 3.53, 4.82, -1.93));
Assert.True(arc.Intersect(1e-4, seg_e).Count() == 0);
// Geometry
Assert.True(arc.GeomFrom.EqualsTol(1e-3, arc.From));
Assert.True(arc.GeomTo.EqualsTol(1e-3, arc.To));
var vertexes = arc.Vertexes.ToList();
Assert.True(vertexes.Count == 2 &&
vertexes.Any(a => a.EqualsTol(1e-3, arc.From)) &&
vertexes.Any(a => a.EqualsTol(1e-3, arc.To)));
// PtAngle and mid
var midpoint = arc.MidPoint;
Assert.True(arc.PtAtAngle(arc.AngleStart + arc.Angle / 2).EqualsTol(1e-3, midpoint));
// segment
Assert.True(arc.Segment.EqualsTol(1e-3, new Line3D(arc.From, arc.To)));
// arc equals
Assert.True(arc.EqualsTol(1e-3, new Arc3D(1e-3, arc.From, arc.MidPoint, arc.To)));
Assert.True(arc.EqualsTol(1e-3, new Arc3D(1e-3, arc.CS, arc.Radius, arc.AngleStart, arc.AngleEnd)));
Assert.False(arc.EqualsTol(1e-3, new Arc3D(1e-3, arc.CS, arc.Radius / 2, arc.AngleStart, arc.AngleEnd)));
Assert.False(arc.EqualsTol(1e-3, new Arc3D(1e-3, arc.CS.Move(new Vector3D(1, 0, 0)),
arc.Radius, arc.AngleStart, arc.AngleEnd)));
Assert.False(arc.EqualsTol(1e-3, new Arc3D(1e-3, arc.CS, arc.Radius, arc.AngleStart + 1, arc.AngleEnd + 1)));
// arc bulge
Assert.True(arc.Bulge(1e-3, arc.From, arc.To, arc.CS.BaseZ).EqualsTol(1e-3, Tan(arc.Angle / 4)));
Assert.True(arc.Bulge(1e-3, arc.From, arc.To, -arc.CS.BaseZ).EqualsTol(1e-3, -Tan(arc.Angle / 4)));
// arc contains
Assert.False(arc.Contains(1e-3, new Vector3D(3.084, 3.965, -1.843), onlyPerimeter: false)); // out arc shape - in plane
Assert.False(arc.Contains(1e-3, new Vector3D(2.821, 4.417, -2.795), onlyPerimeter: false)); // out of plane
Assert.True(arc.Contains(1e-3, new Vector3D(5.446, 3.708, -3.677), onlyPerimeter: false)); // arc shape - in plane
Assert.False(arc.Contains(1e-3, new Vector3D(5.142, 3.774, -4.713), onlyPerimeter: false)); // out of plane
// read arc from dxf and use comparer
{
var doc = netDxf.DxfDocument.Load("_torefact/doc/Arc3DTest_001.dxf");
var arc_from_dxf = doc.Arcs.First().ToArc3D(1e-3);
var cmp = new Arc3DEqualityComparer(1e-3);
var q = new[] {
arc_from_dxf,
arc,
new Arc3D(1e-3, arc.From, arc.MidPoint, arc.To),
new Arc3D(1e-3, arc.CS, arc.Radius, arc.AngleStart, arc.AngleEnd)
};
Assert.True(q.Distinct(cmp).Count() == 1);
Assert.True(arc_from_dxf.EqualsTol(1e-3, ((netDxf.Entities.Arc)arc.DxfEntity).ToArc3D(1e-3)));
}
}