The first is calculated via $\arctan(x)$ the second via $\cos(x)$ and $\sin(x)$ or one of them replaced by the square root function. The problem is that you would need to calculate: If the shortest path is wanted, one needs to modify the above. Which could involve segments of length more than $\pi$. The spline will be converted to the polyline.The interpolation you want is a linear interpolation of the angle (which is identical to the arclength for the unit circle): Specify the precision value between 0 and 99. The command line will look like the below image:ĥ. The steps to convert a spline into a polyline are listed below: The spline with a specified degree will be created. Specify the points by clicking with the help of the cursor. Click on the ' Degree' option on the command line, as shown below:ĥ. Select the Spline icon under the Draw interface from the ribbonpanel.Ģ. The steps to create such spline are listed below:ġ. Press the Ctrl button to switch between different operations. The operations such as Stretch, Add, Refine, and Remove can be performed on different vertices, according to the requirements.ģ. The vertices on the spline will look like the below image:Ģ. We can define as many points according to our requirements. The shape depends on the points defined by us. The created spline is shown below: Note: We can also create splines with a closed-loop. Specify the vertices by clicking with the help of the mouse. Click on the 'CV' option, as shown below:Ĥ. Click on the 'Method' option on the command line, as shown below:ģ. Select the Spline icon under the Draw interface from the ribbon panel.Ģ. The steps to create spline using Control Vertices ( CV) are listed below:ġ. It is shown below:Ĭontinue specifying points and press Enter or Esc to exit. Specify the fit points by clicking with the help of the mouse. Click on the ' Fit' option, as shown below:Ĥ. Click on the ' Method' option on the command line, as shown below:ģ. Type SPL on the command line or command prompt and press Enter.Ģ. Select the Spline icon under the Draw interface from the ribbon panel, as shown below: The steps to create spline using fit points are listed below:ġ. The control vertices define a control frame, which is used to control the shape of the spline, while fit points coincided with the spline.Thus, spline can be created by defining fit points or Control Vertices ( CV) points.It creates a non-uniform curve passing through the points.The spline command in AutoCAD is used to create a smooth curve, which passes through a set of predefined points.
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