Arc as Curve

Creates an arc curve using the options shown in the following image to achieve the required shape. An arc can serve as a reference for downstream modelling tasks such as limiting a surface or panel, creating a point along a curve, creating web frames, and as a design aid for creating complex geometries.

An arc can be defined using different types of points, for example, coordinates from a ray intersection, or an existing CRM point. Multiple point types can be combined to define a single arc.

You can create an arc on an absolute plane, grid plane, surface, or panel.

• If located on a surface, the arc curve is created as a CRM Curve.

• If located on a panel, the arc curve is created as a Local Curve.

Create an arc as curve

1. On the Common Reference tab, in the Create group, select Curve then select Arc as Curve from the dropdown list.

   Note: The default method for arc creation is Center and Radius. To use a different method, make a selection from the dropdown list that appears when you hover your mouse pointer over Arc as Curve. The following steps are slightly different for each method.

2. In the 3D View, select the absolute plane, grid plane, surface, or panel you want to place the arc.

3. Select a point in the 3D View to define the center point, or enter the coordinates of the center point in the text fields.

   

   To choose a different method for defining the center point, press the down arrow. Possible options are shown in the following image:

   

4. Enter the radius by selecting in the 3D View, or by entering a value in the Distance: field.

   

   To use diameter instead of radius, press the down arrow and select Diameter, or press D.

5. Set the start and end points for the arc by selecting in the 3D View, or by entering the coordinates in the text fields:

   

   After you enter these values, the application creates the arc as an ICRCUR element in the Model Explorer and displays it in the 3D View.

   

   You can view or modify the center point, radius, and start and end point attributes in the Properties window:

   

   For more information on how to use the Properties window, see Properties.

   Alternatively, double-click the circle in the 3D View to show grips for the center point, radius, and start and end points to make interactive adjustments.