Small Visual Basic v2.2.5
sVB 2.2 supports creating custom complex shapes using the GeometricPath type.
For example, you can draw a hex polygon shape, add it to the shapes, then rotate it by this code:
GraphicsWindow.BrushColor = Colors.AliceBlue
GraphicsWindow.PenColor = Colors.Red
GraphicsWindow.PenWidth = 3
' Crate a figure to draw a new custom shape
GeometricPath.CreateFigure(100, 100)
GeometricPath.AddLineSegment(50, 150, True)
GeometricPath.AddLineSegment(100, 200, True)
GeometricPath.AddLineSegment(200, 200, False) ' using `False` hides the line
GeometricPath.AddLineSegment(250, 150, True)
GeometricPath.AddLineSegment(200, 100, True)
GeometricPath.AddLineSegment(100, 100, True)
Sh1 = Shapes.AddGeometricPath()
Shapes.Rotate(Sh1, 45)
And you may use curves and arcs not just lines:
GraphicsWindow.BrushColor = Colors.Transparent
GraphicsWindow.PenColor = Colors.Blue
GraphicsWindow.PenWidth = 5
' Create a new empty geometric path
GeometricPath.CreatePath()
GeometricPath.CreateFigure(100, 100)
GeometricPath.AddLineSegment(50, 150, True)
GeometricPath.AddArcSegment(100, 200, 20, 30, 30, False, True, True)
GeometricPath.AddLineSegment(200, 200, True)
GeometricPath.AddBezierSegment(210, 210, 230, 230, 250, 150, True)
GeometricPath.AddQuadraticBezierSegment(230, 110, 200, 100, True)
GeometricPath.AddLineSegment(100, 100, True)
Sh2 = Shapes.AddGeometricPath()
Shapes.Move(Sh2, 130, 100)
You can also combine some basic shapes in one path:
GraphicsWindow.BrushColor = Colors.Yellow
GraphicsWindow.PenColor = Colors.Black
GraphicsWindow.PenWidth = 1
GeometricPath.CreatePath()
GeometricPath.AddLine(100, 100, 400, 400)
GeometricPath.AddRectangle(100, 100, 200, 200)
GeometricPath.AddEllipse(150, 150, 100, 100)
GeometricPath.AddTriangle(300, 300, 400, 200, 400, 400)
Sh3 = Shapes.AddGeometricPath()
Shapes.Move(Sh3, 300, 0)
Shapes.Rotate(Sh3, 45)
You can see this code in action in the Geometric Path
app in the samples folder. And this is the 3 shapes that the above code draws:
You can also add the geometric path to a label, by calling the AddGeometricPath()
method of this label:
Label1.AddGeometricPath(
Colors.Red, ' Pen color
2, ' Pen width
Colors.Yellow ' Brush color
)
This allows you to add complex shpes on the form with code, and program their events.
See the Geometric Path2
in the samples folder. It adds the same shapes of the previous sample to the form, and allow you to drag them by the mouse.