Exemplo n.º 1
0
        public override List <SolverPreviewObject> InterestingShapeAroundPoint(gpPln planeOfTheView, Point3D point)
        {
            var qosLock = QosFactory.Instance.Get(QosNames.EdgeMatchLock);

            qosLock.Begin();

            foreach (var edge in Geometry.SelectMany(geometricObject => geometricObject.Edges))
            {
                // Calculate the distance from the point to the curve
                GeomCurve curve;
                var       first = 0.0;
                var       last  = 0.0;
                unsafe
                {
                    curve = BRepTool.Curve(edge.Edge, ref first, ref last);
                }

                if (curve == null)
                {
                    continue;
                }

                // Add a curve domain protection
                if (first > last)
                {
                    continue;
                }

                ExtremaExtPC extrema = null;
                try
                {
                    var adaptor = new GeomAdaptorCurve(curve, first, last);
                    extrema = new ExtremaExtPC(point.GpPnt, adaptor, Precision.Confusion);
                }
                catch
                {
                    Log.Debug("Exception on generate extrema points");
                }

                if (extrema == null)
                {
                    continue;
                }

                if (!extrema.IsDone)
                {
                    continue;
                }
                if (extrema.NbExt < 1)
                {
                    continue;
                }
                // The point is on edge
                if (extrema.SquareDistance(1) >= CoreGlobalPreferencesSingleton.Instance.ZoomLevel * _precision)
                {
                    continue;
                }
                // Generate a point on the edge by projecting
                var projectionPoint = new GeomAPIProjectPointOnCurve(point.GpPnt, curve);
                if (projectionPoint.NbPoints <= 0)
                {
                    continue;
                }
                List <SolverGeometricObject> selectedEdge = Geometry.Where(geomObj => geomObj.Edges.Contains(edge)).ToList();

                //LastGeometry.Clear();
                //LastGeometry.AddRange(selectedEdge);
                var originPoint = new SolverGeometricObject(null);
                originPoint.AddPoint(new SolverDataPoint(new Point3D()));
                var result = GeomUtils.ProjectPointOnPlane(new Point3D().GpPnt, planeOfTheView, Precision.Confusion);
                //if(result == new gpPnt(0,0,0))
                //{
                //    LastGeometry.Add(originPoint);
                //}
                if (selectedEdge.Count > 0 && selectedEdge.First().Edges.Count > 0)
                {
                    return new List <SolverPreviewObject>()
                           {
                               new SolverPointResult(new Point3D(projectionPoint.NearestPoint), selectedEdge.First().Edges.First().ParentIndex)
                           }
                }
                ;                                                                                                                                                               // {Text = "On Edge"};
                else
                {
                    return new List <SolverPreviewObject>()
                           {
                               new SolverPointResult(new Point3D(projectionPoint.NearestPoint))
                           }
                };
            }
            qosLock.End();
            return(new List <SolverPreviewObject>());
        }
    }
        /// <summary>
        ///   Detects if the point is on the curve that describes the edge.
        /// </summary>
        /// <param name = "planeOfTheView"></param>
        /// <param name = "point"></param>
        /// <returns></returns>
        public override List <SolverPreviewObject> InterestingShapeAroundPoint(gpPln planeOfTheView, Point3D point)
        {
            var qosLock = QosFactory.Instance.Get(QosNames.EdgeContinuationMatchLock);

            qosLock.Begin();
            foreach (var edge in LastGeometry.SelectMany(geometricObject => geometricObject.Edges))
            {
                // Calculate the distance from the point to the curve
                GeomCurve curve;
                double    first = 0;
                double    last  = 0;
                //  unsafe
                {
                    curve = BRepTool.Curve(edge.Edge, ref first, ref last);
                }

                if (curve == null)
                {
                    continue;
                }

                ExtremaExtPC extrema = null;

                try
                {
                    var adaptor = new GeomAdaptorCurve(curve);
                    extrema = new ExtremaExtPC(point.GpPnt, adaptor, Precision.Confusion);
                }
                catch (Exception)
                {
                    Log.Debug("Exception on extract paralel axis");
                }

                if (extrema == null)
                {
                    continue;
                }

                if (!extrema.IsDone)
                {
                    continue;
                }
                if (extrema.NbExt < 1)
                {
                    continue;
                }
                // The point is on edge
                if (extrema.SquareDistance(1) >= _precision)
                {
                    continue;
                }
                // Generate a point on the edge by projecting
                var projectionPoint = new GeomAPIProjectPointOnCurve(point.GpPnt, curve);
                if (projectionPoint.NbPoints <= 0)
                {
                    continue;
                }
                var lastPoint = curve.Value(last);
                return(new List <SolverPreviewObject>()
                {
                    new SolverEdgeTwoPointsResult(new Point3D(projectionPoint.NearestPoint), new Point3D(lastPoint))
                    {
                        Type = "Line Continuation"
                    }
                });
            }
            qosLock.End();
            return(new List <SolverPreviewObject>());
        }