Maak rechthoek als polylijnen en vul deze met hatching

Hoe maak je een rechthoek als polylijnen en vul je deze met hatching

Probleem: Hoe maak je een rechthoek als polylijnen en vul je deze met hatching (CADNET-1351).

Tips: Om dit te doen, maak een CadLwPolyline aan en voeg coördinaten van punten toe, gebruik CadHatch om met kleuren te werken en gebruik CadEdgeBoundaryPath om verbinding te maken, gebruik CadHatch om met hoeken te werken en CadHatchPatternData voor het patroon.

Voorbeeld:

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();