Sample project of working with splines is located in the Drawing\Examples\DevGuide\OdSplinesEx subdirectory of the ODA installation folder (for example, C:\Program Files\Open Design Alliance).
The sample project demonstrates creating two identical splines, using NURBS data and using fit data, and setting and displaying its properties. The application creates a .dwg file, and then prints the following information about the created splines objects:
The application generates a .dwg file that contains two spline objects, which show two methods of creating the splines:
Specific Properties of Splines
Computed Properties of Splines
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