Draws a circular arc by defining a center point and two end points.
How to use
1. Click the Preferred Arc icon or choose the Tools > Curves > Arc > Arc: center, point, point command.
2. The program console prompts Local axes origin.
3. Place the centerpoint of the arc either by clicking and dragging in any view (release the mouse button to confirm placement) or by typing its XYZ coordinates in the console. Values must be separated by a comma, i.e. 1,2,3, and confirmed by pressing Enter. If you press Enter without typing any value, the axes origin of the curve will be placed in correspondence with the XYZ origin.
4. The program console prompts Start point.
5. Place the start point either by clicking and dragging in any view or by typing its XYZ coordinates in the console.
6. In the same way, place the end point at the End point console prompt.
To interactively define the arc, hold the mouse button down after the click or click while pressing the Shift key.
Options
Start point
End point
To modify XYZ coordinates of the two arc end points.
Views. Choose the Edit mode. Click the point whose position you want to modify and drag it. Release the mouse button when you reach the desired position.
Modeling Tool panel. Type the new values in the XYZ data fields and confirm them by pressing Enter.
Angle
To change sweep of the arc.
Views. Choose the Edit mode. Click the End point hotSpot and drag it. Release the mouse button when you reach the desired angle.
Modeling Tool panel. Set the value either by moving the slider or by typing it in the data field and pressing Enter. The value can range from 0 to 360 degrees, in which case the arc becomes a circle.
Radius
To change the preferred radius.
Views. Choose the Edit mode. Click the Start point hotSpot and drag it. Release the mouse button when you reach the desired radius.
Modeling Tool panel. Set the value either by moving the slider or by typing it in the data field and pressing Enter . The value can range from 0 to ¥.
Extra
To specify whether you want to visualize the arc contour only or also the radii that make it appear as a pie slice.
Modeling Tool panel. Switch the chosen radio button on. You have the following options: Contour and Pie Slice.
Arc type
To specify whether the arc must be weighted (exact) or non-weighted (approximated).
Modeling Tool panel. Switch the chosen radio button on. You have the following options: Weighted and Non-weighted. If you choose the first option, the number of control points is automatically defined. With the second option you can set the number of control points in the Points section.
Note: in general, you could use Weighted if you do not plan to modify the original shape and Non-weighted if you want to edit it.
Points
To determine the number of control points of the arc in case you have chosen Non-weighted in the above section.
Modeling Tool panel. Set the value either by moving the slider or by typing it in the data field and pressing Enter (remember: the more the control points, the more approximated the arc).
See also: