From Xojo Documentation
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Used to draw vector graphic shapes composed of lines and curves. It is similar to a polygon except that a “side” may be curved. A figure consists of a set of CurveShapes, with the end point of one curve automatically joined to the starting point of the next.
A figure is formed by drawing each curve it contains in order, joining the endpoint of one to the starting point of the next. The figure is degenerate if doing so does not enclose any area. This will be the case for a figure containing only one line, for example. The appearance of a degenerate figure is undefined.
AddLine, AddCubic, and AddQuad are convenience methods that make it easier to add curves to the figure. You could instead create your own CurveShapes, and add them with the AddCurve or AddCurveAt methods.
fx.AddLine(0, 100, 50, 0)
fx.AddLine(50, 0, -50, 0)
fx.Border = 100 // opaque border
fx.BorderColor = &cFF0000 // red border
fx.FillColor = &cFFFF00 // yellow interior
g.DrawObject(fx, 100, 100)