### Auto Cylinder Construction

The following table indicates the type of cylinder that will be constructed when the specified inputs are selected and the AUTO option is chosen. The order of the selected features is not important. If an incorrect input feature(s) is selected, PC-DMIS will display an error message and will not automatically construct the indicated feature type.

Input Feature(s) | Constructs
5 or more Features = | Best Fit Cylinder
Any 1 Feature = (other than Cylinder/Set) | Cast Cylinder
Any 1 Set = | Best Fit Cylinder
Cylinder = | Reverse Cylinder
Plane + Any Feature = | Project Cylinder

Note: Be aware that certain patterns of points (such as two rows of three equally spaced points or two rows of four equally spaced points) result in multiple ways to construct or measure a cylinder, and PC-DMIS's Best Fit algorithm may construct or measure the cylinder using an unexpected solution. For best results, measured or constructed cylinders should use a pattern of points that will eliminate unwanted solutions.

To allow PC-DMIS to automatically determine the best method of construction:

1. Access the Construct Cylinder dialog box (Insert | Feature | Constructed | Cylinder).

2. Select the Auto option from the list of options.

3. Select the desired feature(s) based on the table below.

4. Click the Create button.