Ejemplo n.º 1
0
 /// <summary>
 /// Set the geometry curve used by the ModelCurve
 /// </summary>
 /// <param name="c"></param>
 protected void InternalSetCurve(Autodesk.Revit.DB.Curve c)
 {
     if (!this.InternalCurveElement.GeometryCurve.IsBound && c.IsBound)
     {
         c = c.Clone();
         c.MakeUnbound();
     }
     setCurveMethod(this.InternalCurveElement, c);
 }
Ejemplo n.º 2
0
        private static Plane GetPlaneFromCurve(Curve c, bool planarOnly)
        {
            //cases to handle
            //straight line - normal will be inconclusive

            //find the plane of the curve and generate a sketch plane
            double period = c.IsBound ? 0.0 : (c.IsCyclic ? c.Period : 1.0);

            var p0 = c.IsBound ? c.Evaluate(0.0, true) : c.Evaluate(0.0, false);
            var p1 = c.IsBound ? c.Evaluate(0.5, true) : c.Evaluate(0.25 * period, false);
            var p2 = c.IsBound ? c.Evaluate(1.0, true) : c.Evaluate(0.5 * period, false);

            if (c is Line)
            {
                var v1   = p1 - p0;
                var v2   = p2 - p0;
                XYZ norm = null;

                //keep old plane computations
                if (System.Math.Abs(p0.Z - p2.Z) < 0.0001)
                {
                    norm = XYZ.BasisZ;
                }
                else
                {
                    var p3 = new XYZ(p2.X, p2.Y, p0.Z);
                    var v3 = p3 - p0;
                    norm = v1.CrossProduct(v3);
                    if (norm.IsZeroLength())
                    {
                        norm = v2.CrossProduct(XYZ.BasisY);
                    }
                    norm = norm.Normalize();
                }

                return(new Plane(norm, p0));
            }

            Autodesk.Revit.DB.CurveLoop cLoop = new Autodesk.Revit.DB.CurveLoop();
            cLoop.Append(c.Clone());
            if (cLoop.HasPlane())
            {
                return(cLoop.GetPlane());
            }
            if (planarOnly)
            {
                return(null);
            }

            IList <XYZ> points = c.Tessellate();
            List <XYZ>  xyzs   = new List <XYZ>();

            for (int iPoint = 0; iPoint < points.Count; iPoint++)
            {
                xyzs.Add(points[iPoint]);
            }

            XYZ        meanPt;
            List <XYZ> orderedEigenvectors;

            PrincipalComponentsAnalysis(xyzs, out meanPt, out orderedEigenvectors);
            var normal = orderedEigenvectors[0].CrossProduct(orderedEigenvectors[1]);
            var plane  = Document.Application.Create.NewPlane(normal, meanPt);

            return(plane);
        }
Ejemplo n.º 3
0
        private static Plane GetPlaneFromCurve(Curve c, bool planarOnly)
        {
            //cases to handle
            //straight line - normal will be inconclusive

            //find the plane of the curve and generate a sketch plane
            double period = c.IsBound ? 0.0 : (c.IsCyclic ? c.Period : 1.0);

            var p0 = c.IsBound ? c.Evaluate(0.0, true) : c.Evaluate(0.0, false);
            var p1 = c.IsBound ? c.Evaluate(0.5, true) : c.Evaluate(0.25 * period, false);
            var p2 = c.IsBound ? c.Evaluate(1.0, true) : c.Evaluate(0.5 * period, false);

            if (c is Line)
            {
                var v1 = p1 - p0;
                var v2 = p2 - p0;
                XYZ norm = null;

                //keep old plane computations
                if (System.Math.Abs(p0.Z - p2.Z) < 0.0001)
                {
                    norm = XYZ.BasisZ;
                }
                else
                {
                    var p3 = new XYZ(p2.X, p2.Y, p0.Z);
                    var v3 = p3 - p0;
                    norm = v1.CrossProduct(v3);
                    if (norm.IsZeroLength())
                    {
                        norm = v2.CrossProduct(XYZ.BasisY);
                    }
                    norm = norm.Normalize();
                }

                return new Plane(norm, p0);

            }

            Autodesk.Revit.DB.CurveLoop cLoop = new Autodesk.Revit.DB.CurveLoop();
            cLoop.Append(c.Clone());
            if (cLoop.HasPlane())
            {
                return cLoop.GetPlane();
            }
            if (planarOnly)
                return null;

            IList<XYZ> points = c.Tessellate();
            List<XYZ> xyzs = new List<XYZ>();
            for (int iPoint = 0; iPoint < points.Count; iPoint++)
                xyzs.Add(points[iPoint]);

            XYZ meanPt;
            List<XYZ> orderedEigenvectors;
            PrincipalComponentsAnalysis(xyzs, out meanPt, out orderedEigenvectors);
            var normal = orderedEigenvectors[0].CrossProduct(orderedEigenvectors[1]);
            var plane = Document.Application.Create.NewPlane(normal, meanPt);
            return plane;
        }
Ejemplo n.º 4
0
        private static Plane GetPlaneFromCurve(Curve c, bool planarOnly)
        {
            //cases to handle
            //straight line - normal will be inconclusive

            //find the plane of the curve and generate a sketch plane
            double period = c.IsBound ? 0.0 : (c.IsCyclic ? c.Period : 1.0);

            var p0 = c.IsBound ? c.Evaluate(0.0, true) : c.Evaluate(0.0, false);
            var p1 = c.IsBound ? c.Evaluate(0.5, true) : c.Evaluate(0.25 * period, false);
            var p2 = c.IsBound ? c.Evaluate(1.0, true) : c.Evaluate(0.5 * period, false);

            if (c is Line)
            {
                var v1 = p1 - p0;
                var v2 = p2 - p0;
                XYZ norm = null;

                //keep old plane computations
                if (System.Math.Abs(p0.Z - p2.Z) < 0.0001)
                {
                    norm = XYZ.BasisZ;
                }
                else
                {
                    var p3 = new XYZ(p2.X, p2.Y, p0.Z);
                    var v3 = p3 - p0;
                    norm = v1.CrossProduct(v3);
                    if (norm.IsZeroLength())
                    {
                        norm = v2.CrossProduct(XYZ.BasisY);
                    }
                    norm = norm.Normalize();
                }

                return new Plane(norm, p0);

            }

            Autodesk.Revit.DB.CurveLoop cLoop = new Autodesk.Revit.DB.CurveLoop();
            cLoop.Append(c.Clone());
            if (cLoop.HasPlane())
            {
                return cLoop.GetPlane();
            }
            if (planarOnly)
                return null;

            IList<XYZ> points = c.Tessellate();
            List<XYZ> xyzs = new List<XYZ>();
            for (int iPoint = 0; iPoint < points.Count; iPoint++)
                xyzs.Add(points[iPoint]);

            var bestFitPlane =
                Autodesk.DesignScript.Geometry.Plane.ByBestFitThroughPoints(xyzs.ToPoints(false));

            return bestFitPlane.ToPlane(false);
        }