Erstellen Sie ein Rechteck als Polylinien und füllen Sie es mit Schraffur

Wie man ein Rechteck als Polylinien erstellt und es mit Schraffur füllt

Problem: Wie man ein Rechteck als Polylinien erstellt und es mit Schraffur füllt (CADNET-1351).

Tipps: Dazu erstellen Sie eine CadLwPolyline und fügen die Punktkoordinaten hinzu, verwenden Sie CadHatch, um mit Farben zu arbeiten, und verwenden Sie CadEdgeBoundaryPath, um zu verbinden. Verwenden Sie CadHatch, um mit Winkeln zu arbeiten, und CadHatchPatternData für das Muster.

Beispiel:

CadLwPolyline polyline = new CadLwPolyline();
polyline.Coordinates = new List<Cad2DPoint>();
polyline.Coordinates.Add(new Cad2DPoint(-5d, -5d));
polyline.Coordinates.Add(new Cad2DPoint(-5d, 10d));
polyline.Coordinates.Add(new Cad2DPoint(20d, 10d));
polyline.Coordinates.Add(new Cad2DPoint(20d, -5d));
polyline.Flag = CadLwPolylineFlag.Closed;
polyline.ConstantWidth = 0.1;


CadHatch hatch = new CadHatch();
hatch.PatternName = "SOLID";
hatch.ColorId = 1; // index of color: https://gohtx.com/acadcolors.php
hatch.HatchPatternType = 1; // 0 = User-defined; 1 = Predefined; 2 = Custom, we support only predefined now
hatch.BoundaryPaths = new List<CadHatchBoundaryPathContainer>();
CadHatchBoundaryPathContainer container = new CadHatchBoundaryPathContainer();
container.BoundaryPath = new List<ICadBoundaryPath>();

CadEdgeBoundaryPath path = new CadEdgeBoundaryPath();
path.Objects = new List<ICadBoundaryPathEntity>();
path.Objects.Add(new CadBoundaryPathLine() { FirstPoint = new Point2D(-5, -5), SecondPoint = new Point2D(-5, 10) });
path.Objects.Add(new CadBoundaryPathLine() { FirstPoint = new Point2D(-5, 10), SecondPoint = new Point2D(20, 10) });
path.Objects.Add(new CadBoundaryPathLine() { FirstPoint = new Point2D(20, 10), SecondPoint = new Point2D(20, -5) });
path.Objects.Add(new CadBoundaryPathLine() { FirstPoint = new Point2D(20, -5), SecondPoint = new Point2D(-5, -5) });

container.BoundaryPath.Add(path);
hatch.BoundaryPaths.Add(container);

List<CadBaseEntity> entities = new List<CadBaseEntity>();
entities.Add(polyline);
entities.Add(hatch);
cadImage.Entities = entities.ToArray();
cadImage.UpdateSize();




CadHatch hatch = new CadHatch();
hatch.PatternName = "ANGLE"; // only known values are available here
hatch.ColorId = 1;
hatch.HatchPatternType = 1; // 
hatch.BoundaryPaths = new List<CadHatchBoundaryPathContainer>();
CadHatchBoundaryPathContainer container = new CadHatchBoundaryPathContainer();
container.BoundaryPath = new List<ICadBoundaryPath>();

CadEdgeBoundaryPath path = new CadEdgeBoundaryPath();
path.Objects = new List<ICadBoundaryPathEntity>();
path.Objects.Add(new CadBoundaryPathLine(){FirstPoint = new Point2D(-5, -5), SecondPoint =  new Point2D(-5,10)});
path.Objects.Add(new CadBoundaryPathLine() { FirstPoint = new Point2D(-5, 10), SecondPoint = new Point2D(20, 10) });
path.Objects.Add(new CadBoundaryPathLine() { FirstPoint = new Point2D(20, 10), SecondPoint = new Point2D(20, -5) });
path.Objects.Add(new CadBoundaryPathLine() { FirstPoint = new Point2D(20, -5), SecondPoint = new Point2D(-5, -5) });

container.BoundaryPath.Add(path);
hatch.BoundaryPaths.Add(container);

hatch.PatternDefinitions = new List<CadHatchPatternData>();
CadHatchPatternData data1 = new CadHatchPatternData();
data1.LineBasePoint = new Cad3DPoint();
data1.DashLengths = new List<double>();
data1.DashLengths.Add(4);
data1.DashLengths.Add(1.5);
data1.DashLengthCount = (short)data1.DashLengths.Count;
data1.LineOffset = new Cad2DPoint(0d, 5.5d);

CadHatchPatternData data2 = new CadHatchPatternData();
data2.LineBasePoint = new Cad3DPoint();
data2.DashLengths = new List<double>();
data2.DashLengths.Add(4);
data2.DashLengths.Add(-1.5);
data2.LineAngle = 90;
data2.DashLengthCount = (short)data2.DashLengths.Count;
data2.LineOffset = new Cad2DPoint(-5.5d, 0d);

hatch.PatternDefinitions.Add(data1);
hatch.PatternDefinitions.Add(data2);
hatch.NumberOfPatternDefinitions = (short)hatch.PatternDefinitions.Count;

List<CadBaseEntity> entities = new List<CadBaseEntity>();
entities.Add(polyline);
entities.Add(hatch);
cadImage.Entities = entities.ToArray();
cadImage.UpdateSize();