Buat persegi panjang sebagai poligon dan isi dengan pola

Cara membuat persegi panjang sebagai poligon dan mengisinya dengan pola

Masalah: Cara membuat persegi panjang sebagai poligon dan mengisinya dengan pola (CADNET-1351).

Tips: Untuk melakukan ini, buat CadLwPolyline dan tambahkan koordinat titik ke dalamnya, gunakan CadHatch untuk bekerja dengan warna dan gunakan CadEdgeBoundaryPath untuk menghubungkan, gunakan CadHatch untuk bekerja dengan sudut dan CadHatchPatternData untuk pola.

Contoh:

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();