9

Arc Spline 275
Creating an arc using the End-End-Middle creation method
To create an ar c using the center-end-end method:
1.
GototheCreatepanelandchoose
Shapes.
2. Click Arc.
3. Choose the Center-End-End creation method.
4. Press the mouse button to define the center of
the arc.
5. Drag and release th
e mouse button to specify
the start point of the arc.
6. Move the mouse and click to specify the other
end of the arc.
Creating an arc
using the Center-End-End creation m ethod
Inter face
Rendering and Interpolation rollouts
All spline-bas
ed shapes share these parameters.
See Splines (page 1–266) for an explanation of
these p arameters.
Creation Method rollout
Theseoptionsdeterminethesequenceofmouse
clicks involved in the creation of the arc.
End-End-Middle—Drag and release to set t he two
endpoints of the arc, and then click to specify the
third p oint between the two endpoints.
Center-End-End—Press the mouse button to specify
the center point of the arc, drag and release to
specify one endpoint of the arc, and click to specify
the other endpoint of the arc.
Parameters rollout
Once you have created an arc, you can make
changes using the following parameters:
Radius—Specifies the arc radius.
Fr o m—Specifies the location of the start point as
an angle measured from the local positive X axis.
To—Specifies the location of the end point as an
angle measured from the local positive X axis.
Pie Slice—Whenon,createsaclosedsplineinthe
form of a pie. The start point and end point are
connected to the center with straight segments.