Drillhole Angle Options

Use the options on the Drillhole Angles tab of the Ring Design Options form to specify how the hole angles are referenced.

The default reference angle for the holes starts from a 90° (right) direction and is measured anti-clockwise (as shown in the example). You can change the default behaviour so that :

• the reference angle starts from direction 0° (up) 180° (left) or 270° (down)
• holes are measured in a clockwise or anti-clockwise direction.
• negative angles are included.
• the hole angle decimal precision is adjusted.