private void MouseDownSetBridge(MouseEventArgs e) { UnitPoint mousePoint = this.ToUnit(this.mouseDownPoint); if (this.bridgeStart.IsEmpty) { this.bridgeStart = mousePoint; } else { this.bridgeEnd = mousePoint; BridgingModel param = this.bridgeFunc?.Invoke(); if (param != null) { //1.获取图形区域与桥接直线交叉的图形 var oldObjects = this.Model.DrawingLayer.Objects.FindAll(f => HitUtil.LineIntersectWithRect(this.bridgeStart, this.bridgeEnd, f.GetBoundingRectangle(BoundingRectangleType.All))); bool isChanged = false; //2.计算直线与图形的交点 var newObjects = BridgeHelper.GetBridgeObjects(oldObjects, this.bridgeStart, this.bridgeEnd, param, out isChanged); if (isChanged) { this.Model.DoBridge(newObjects, oldObjects, true); } } this.CommandEscape(); } }
public FrmBridging(BridgingModel bridging) : this() { this.Model = CopyUtil.DeepCopy(bridging); if (this.Model.MaxDistance == 0) { this.Model.MaxDistance = 100; } if (this.Model.Width == 0) { this.Model.Width = 10; } if (!this.mvvmContext1.IsDesignMode) { if (this.Model == null) { this.Model = new BridgingModel(); } this.mvvmContext1.SetViewModel(typeof(BridgingModel), this.Model); this.InitializeBindings(); } }
private static List <BridgePoints> GetBridgeByMultiSegLine(MultiSegmentLineBase multiSegLine, UnitPoint p1, UnitPoint p2, BridgingModel param) { List <BridgePoints> retPoints = new List <BridgePoints>(); var line = DrawingOperationHelper.GetLineEquation(p1, p2); double width = param.Width / 2; var oriPoints = multiSegLine.Points; for (int index = 0; index < oriPoints.Count; index++) { int next = (index + 1 == oriPoints.Count) ? 0 : index + 1; UnitPointBulge point1 = oriPoints[index]; UnitPointBulge point2 = oriPoints[next]; if (!multiSegLine.IsCloseFigure && index == oriPoints.Count - 1) { break; } if (!double.IsNaN(point1.Bulge)) { //圆弧 ArcModelMini arcMini = DrawingOperationHelper.GetArcParametersFromBulge(point1.Point, point2.Point, (float)point1.Bulge); arcMini.StartAngle = (float)HitUtil.RadiansToDegrees(arcMini.StartAngle); arcMini.EndAngle = (float)HitUtil.RadiansToDegrees(arcMini.EndAngle); List <UnitPoint> points = DrawingOperationHelper.GetIntersectPointByLineAndCircle(line.Item1, line.Item2, line.Item3, arcMini.Center, arcMini.Radius); var hasPoints = points?.Where(p => !p.IsEmpty && HitUtil.IsPointOnArc(p, 0.000001f, arcMini) && HitUtil.IsPointInLine(p1, p2, p, 0.000001f)).ToList(); if (hasPoints != null && hasPoints.Count > 0) { arcMini.StartAngle = (float)HitUtil.DegreesToRadians(arcMini.StartAngle); arcMini.EndAngle = (float)HitUtil.DegreesToRadians(arcMini.EndAngle); //根据宽度求点 double arcLength = DrawingOperationHelper.GetArcLength(arcMini.Radius, arcMini.SweepAngle); hasPoints?.ForEach(p => { double percent = DrawingOperationHelper.GetPercentInArcByPoint(arcMini, p); //第一个位置点 double length1 = arcLength * (1 - percent) + width; UnitPointBulge retP1 = GetEndPointByLength(oriPoints, index, length1, false); //第二个位置点 double length2 = arcLength * percent + width; UnitPointBulge retP2 = GetEndPointByLength(oriPoints, index, length2, true); var bridge = new BridgePoints(multiSegLine, retP1, retP2, HitUtil.Distance(p1, p)); retPoints.Add(bridge); }); } } else { //直线 var lineABC = DrawingOperationHelper.GetLineEquation(point1.Point, point2.Point); UnitPoint point = DrawingOperationHelper.GetIntersectionPointBy2Line(line.Item1, line.Item2, line.Item3, lineABC.Item1, lineABC.Item2, lineABC.Item3); if (!point.IsEmpty && HitUtil.IsPointInLine(point1.Point, point2.Point, point, 0.000001f) && HitUtil.IsPointInLine(p1, p2, point, 0.000001f)) { //第一个位置点 double lenght1 = HitUtil.Distance(point2.Point, point) + width; UnitPointBulge retP1 = GetEndPointByLength(oriPoints, index, lenght1, false); //第二个位置点 double lenght2 = HitUtil.Distance(point1.Point, point) + width; UnitPointBulge retP2 = GetEndPointByLength(oriPoints, index, lenght2, true); var bridge = new BridgePoints(multiSegLine, retP1, retP2, HitUtil.Distance(p1, point)); retPoints.Add(bridge); } } } return(retPoints); }
private static List <BridgePoints> GetBridgeByArc(ArcBase arc, UnitPoint p1, UnitPoint p2, BridgingModel param) { List <BridgePoints> retPoints = new List <BridgePoints>(); var line = DrawingOperationHelper.GetLineEquation(p1, p2); double width = param.Width / 2; ArcModelMini arcMini = new DrawModel.ArcModelMini() { Center = arc.Center, Radius = arc.Radius, StartAngle = arc.StartAngle, EndAngle = arc.EndAngle, SweepAngle = arc.AngleSweep, Clockwise = arc.IsClockwise }; List <UnitPoint> points = DrawingOperationHelper.GetIntersectPointByLineAndCircle(line.Item1, line.Item2, line.Item3, arc.Center, arc.Radius); var hasPoints = points?.Where(p => !p.IsEmpty && (HitUtil.IsPointOnArc(p, 0.000001f, arcMini) && HitUtil.IsPointInLine(p1, p2, p, 0.000001f))).ToList(); if (hasPoints != null && hasPoints.Count > 0) { //根据宽度求点 double angle = width / arc.Radius * (arc.IsClockwise ? 1 : -1); hasPoints?.ForEach(p => { double lineAngle = HitUtil.LineAngleR(arcMini.Center, p, 0); double angle1 = lineAngle + angle; double angle2 = lineAngle - angle; UnitPoint retPoint1 = UnitPoint.Empty; UnitPoint retPoint2 = UnitPoint.Empty; if (HitUtil.IsPointInArc(HitUtil.RadiansToDegrees(angle1), arcMini.StartAngle, arcMini.EndAngle, arcMini.Clockwise)) { //第一个位置点 retPoint1 = HitUtil.PointOnCircle(arcMini.Center, arcMini.Radius, angle1); } if (HitUtil.IsPointInArc(HitUtil.RadiansToDegrees(angle2), arcMini.StartAngle, arcMini.EndAngle, arcMini.Clockwise)) { //第二个位置点 retPoint2 = HitUtil.PointOnCircle(arcMini.Center, arcMini.Radius, angle2); } BridgePoints bridges = new BridgePoints(arc, new UnitPointBulge(retPoint1), new UnitPointBulge(retPoint2), HitUtil.Distance(p1, p)); retPoints.Add(bridges); }); } return(retPoints); }
private static List <BridgePoints> GetBridgeByCircle(Circle circle, UnitPoint p1, UnitPoint p2, BridgingModel param) { List <BridgePoints> retPoints = new List <BridgePoints>(); var line = DrawingOperationHelper.GetLineEquation(p1, p2); double width = param.Width / 2; List <UnitPoint> points = DrawingOperationHelper.GetIntersectPointByLineAndCircle(line.Item1, line.Item2, line.Item3, circle.Center, circle.Radius); var hasPoints = points?.Where(p => !p.IsEmpty && HitUtil.IsPointInLine(p1, p2, p, 0.000001f)).ToList(); if (hasPoints != null && hasPoints.Count > 0) { //根据宽度求点 double angle = width / circle.Radius * (circle.IsClockwise ? 1 : -1); List <UnitPointBulge> temps = new List <UnitPointBulge>(); hasPoints?.ForEach(p => { double lineAngle = HitUtil.LineAngleR(circle.Center, p, 0); double angle1 = lineAngle + angle; double angle2 = lineAngle - angle; //第一个位置点 UnitPoint retPoint1 = HitUtil.PointOnCircle(circle.Center, circle.Radius, angle1); //第二个位置点 UnitPoint retPoint2 = HitUtil.PointOnCircle(circle.Center, circle.Radius, angle2); BridgePoints bridges = new BridgePoints(circle, new UnitPointBulge(retPoint1), new UnitPointBulge(retPoint2), HitUtil.Distance(p1, p)); retPoints.Add(bridges); }); } return(retPoints); }
public static List <IDrawObject> GetBridgeObjects(List <IDrawObject> drawObjects, UnitPoint p1, UnitPoint p2, BridgingModel param, out bool isChanged) { isChanged = false;//桥接是否改变了图形 List <BridgePoints> bridgePoints = new List <BridgePoints>(); #region 计算桥接点在图形中的点的坐标 drawObjects?.ForEach(drawObject => { if ((drawObject.FigureType == FigureTypes.Circle)) { Circle circle = drawObject as Circle; var bridges = BridgeHelper.GetBridgeByCircle(circle, p1, p2, param); bridgePoints.AddRange(bridges); } else if (drawObject.FigureType == FigureTypes.Arc) { ArcBase arc = drawObject as ArcBase; var bridges = BridgeHelper.GetBridgeByArc(arc, p1, p2, param); bridgePoints.AddRange(bridges); } else if (drawObject.FigureType == FigureTypes.LwPolyline) { MultiSegmentLineBase multiSegLine = drawObject as MultiSegmentLineBase; var bridges = BridgeHelper.GetBridgeByMultiSegLine(multiSegLine, p1, p2, param); bridgePoints.AddRange(bridges); } }); #endregion #region 根据桥接点坐标,按直线的起点距离排序,如果奇数个将移除最后一个,保证偶数个可以连接 bridgePoints.Sort((x, y) => { if (x.Distance > y.Distance) { return(1); } return(-1); }); if (bridgePoints.Count % 2 == 1) { bridgePoints.RemoveAt(bridgePoints.Count - 1); } #endregion #region 移除间距大于最大条件的点 List <BridgePoints> removes = new List <BridgePoints>(); for (int i = 0; i < bridgePoints.Count - 1; i += 2) { var bridge1 = bridgePoints[i]; var bridge2 = bridgePoints[i + 1]; if (Math.Abs(bridge1.Distance - bridge2.Distance) > param.MaxDistance) { removes.Add(bridge1); removes.Add(bridge2); } } removes.ForEach(e => bridgePoints.Remove(e)); #endregion if (bridgePoints.Count > 0) { List <IDrawObject> temps = new List <IDrawObject>(); //计算后的图形 List <IDrawObject> oldDraws = new List <IDrawObject>(); //不用计算的原图 #region 根据桥接点的位置把原图形拆为多段线 foreach (IDrawObject drawObject in drawObjects) { var points = bridgePoints.FindAll(b => b.Owner == drawObject); if (points.Count > 0) { List <IDrawObject> draws = null; if (drawObject.FigureType == FigureTypes.Circle) { draws = BridgeHelper.ConvertToMultiSegLine(drawObject as Circle, points); } else if (drawObject.FigureType == FigureTypes.Arc) { draws = BridgeHelper.ConvertToMultiSegLine(drawObject as ArcBase, points); } else if (drawObject.FigureType == FigureTypes.LwPolyline) { draws = BridgeHelper.ConvertToMultiSegLine(drawObject as MultiSegmentLineBase, points); } if (draws != null) { draws.RemoveAll(p => (p as MultiSegmentLineBase).Points.Count < 2); temps.AddRange(draws); } } else { oldDraws.Add(drawObject); } } #endregion #region 连接最新的桥接图形 for (int i = 0; i < bridgePoints.Count - 1; i += 2) { var bridge1 = bridgePoints[i]; var bridge2 = bridgePoints[i + 1]; bool clockwise1 = HitUtil.IsClockwiseByCross(p1, p2, bridge1.Point1.Point); bool clockwise2 = HitUtil.IsClockwiseByCross(p1, p2, bridge2.Point1.Point); UnitPointBulge point11 = !clockwise1 ? bridge1.Point1 : bridge1.Point2; UnitPointBulge point12 = clockwise1 ? bridge1.Point1 : bridge1.Point2; UnitPointBulge point21 = !clockwise2 ? bridge2.Point1 : bridge2.Point2; UnitPointBulge point22 = clockwise2 ? bridge2.Point1 : bridge2.Point2; MultiSegmentLineBase draw11 = temps.Find(d => (d as MultiSegmentLineBase).Points.Contains(point11)) as MultiSegmentLineBase; MultiSegmentLineBase draw12 = temps.Find(d => (d as MultiSegmentLineBase).Points.Contains(point12)) as MultiSegmentLineBase; MultiSegmentLineBase draw21 = temps.Find(d => (d as MultiSegmentLineBase).Points.Contains(point21)) as MultiSegmentLineBase; MultiSegmentLineBase draw22 = temps.Find(d => (d as MultiSegmentLineBase).Points.Contains(point22)) as MultiSegmentLineBase; if (draw11 == null) { draw11 = new MultiSegmentLineBase() { LayerId = (bridge1.Owner as DrawObjectBase).LayerId, GroupParam = CopyUtil.DeepCopy(bridge1.Owner.GroupParam), Points = new List <UnitPointBulge>() }; } if (draw12 == null) { draw12 = new MultiSegmentLineBase() { LayerId = (bridge1.Owner as DrawObjectBase).LayerId, GroupParam = CopyUtil.DeepCopy(bridge1.Owner.GroupParam), Points = new List <UnitPointBulge>() }; } if (draw21 == null) { draw21 = new MultiSegmentLineBase() { LayerId = (bridge2.Owner as DrawObjectBase).LayerId, GroupParam = CopyUtil.DeepCopy(bridge2.Owner.GroupParam), Points = new List <UnitPointBulge>() }; } if (draw22 == null) { draw22 = new MultiSegmentLineBase() { LayerId = (bridge2.Owner as DrawObjectBase).LayerId, GroupParam = CopyUtil.DeepCopy(bridge2.Owner.GroupParam), Points = new List <UnitPointBulge>() }; } #region 组合多段线 if (draw11 == draw12 && draw21 == draw22) { if (draw11.Points.Count > 0 && draw11.Points[0] == point11) { draw11.ReverseDirection(); } if (draw21.Points.Count > 0 && draw21.Points[0] != point21) { draw11.ReverseDirection(); } if (draw11.Points.Count > 0) { draw11.Points[draw11.Points.Count - 1].Bulge = double.NaN; } if (draw21.Points.Count > 0) { draw21.Points[draw21.Points.Count - 1].Bulge = double.NaN; } draw11.Points.AddRange(draw21.Points); draw11.IsCloseFigure = true; temps.Remove(draw21); } else if (draw11 == draw12 && draw21 != draw22) { if (draw21.Points.Count > 0 && draw21.Points[0] == point21) { draw21.ReverseDirection(); } if (draw22.Points.Count > 0 && draw22.Points[0] != point22) { draw22.ReverseDirection(); } if (draw11.Points.Count > 0 && draw11.Points[0] != point11) { draw11.ReverseDirection(); } if (draw21.Points.Count > 0) { draw21.Points[draw21.Points.Count - 1].Bulge = double.NaN; } if (draw11.Points.Count > 0) { draw11.Points[draw11.Points.Count - 1].Bulge = double.NaN; } draw21.Points.AddRange(draw11.Points); draw21.Points.AddRange(draw22.Points); temps.Remove(draw11); temps.Remove(draw22); } else if (draw11 != draw12 && draw21 == draw22) { if (draw11.Points.Count > 0 && draw11.Points[0] == point11) { draw11.ReverseDirection(); } if (draw21.Points.Count > 0 && draw21.Points[0] != point21) { draw21.ReverseDirection(); } if (draw12.Points.Count > 0 && draw12.Points[0] != point12) { draw12.ReverseDirection(); } if (draw11.Points.Count > 0) { draw11.Points[draw11.Points.Count - 1].Bulge = double.NaN; } if (draw21.Points.Count > 0) { draw21.Points[draw21.Points.Count - 1].Bulge = double.NaN; } draw11.Points.AddRange(draw21.Points); draw11.Points.AddRange(draw12.Points); temps.Remove(draw21); temps.Remove(draw12); } else if (draw11 == draw21 && draw12 == draw22) { if (draw11.Points.Count > 0 && draw11.Points[0] != point11) { draw11.ReverseDirection(); } if (draw12.Points.Count > 0 && draw12.Points[0] != point12) { draw12.ReverseDirection(); } if (draw11.Points.Count > 0) { draw11.Points[draw11.Points.Count - 1].Bulge = double.NaN; } if (draw12.Points.Count > 0) { draw12.Points[draw12.Points.Count - 1].Bulge = double.NaN; } draw11.IsCloseFigure = true; draw12.IsCloseFigure = true; } else if (draw11 == draw21 && draw12 != draw22) { if (draw11.Points.Count > 0 && draw11.Points[0] != point11) { draw11.ReverseDirection(); } if (draw12.Points.Count > 0 && draw12.Points[0] == point12) { draw12.ReverseDirection(); } if (draw22.Points.Count > 0 && draw22.Points[0] != point22) { draw22.ReverseDirection(); } if (draw11.Points.Count > 0) { draw11.Points[draw11.Points.Count - 1].Bulge = double.NaN; } if (draw12.Points.Count > 0) { draw12.Points[draw12.Points.Count - 1].Bulge = double.NaN; } draw11.IsCloseFigure = true; draw12.Points.AddRange(draw22.Points); temps.Remove(draw22); } else if (draw11 != draw21 && draw12 == draw22) { if (draw12.Points.Count > 0 && draw12.Points[0] != point12) { draw12.ReverseDirection(); } if (draw11.Points.Count > 0 && draw11.Points[0] == point11) { draw11.ReverseDirection(); } if (draw21.Points.Count > 0 && draw21.Points[0] != point21) { draw21.ReverseDirection(); } if (draw12.Points.Count > 0) { draw12.Points[draw12.Points.Count - 1].Bulge = double.NaN; } if (draw11.Points.Count > 0) { draw11.Points[draw11.Points.Count - 1].Bulge = double.NaN; } draw12.IsCloseFigure = true; draw11.Points.AddRange(draw21.Points); temps.Remove(draw21); } else { if (draw11.Points.Count > 0 && draw11.Points[0] == point11) { draw11.ReverseDirection(); } if (draw21.Points.Count > 0 && draw21.Points[0] != point21) { draw21.ReverseDirection(); } if (draw12.Points.Count > 0 && draw12.Points[0] == point12) { draw12.ReverseDirection(); } if (draw22.Points.Count > 0 && draw22.Points[0] != point22) { draw22.ReverseDirection(); } if (draw11.Points.Count > 0) { draw11.Points[draw11.Points.Count - 1].Bulge = double.NaN; } if (draw12.Points.Count > 0) { draw12.Points[draw12.Points.Count - 1].Bulge = double.NaN; } draw11.Points.AddRange(draw21.Points); draw12.Points.AddRange(draw22.Points); temps.Remove(draw21); temps.Remove(draw22); } #endregion } #endregion isChanged = true; temps.ForEach(d => d.Update()); temps.AddRange(oldDraws); return(temps); } return(drawObjects); }