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ELLIPSE

Draws an ellipse. You can draw a complete ellipse or an Elliptical Arc.

To draw a complete ellipse, type ELLIPSE on the command line. Then you have the following choices (do not specify Arc).

1 <Axis endpoint 1>
2 Axis endpoint 2
3 Either: <Other axis endpoint> - or -

a

Rotation

b

Rotation around major axis

- or -

1 Center
2 Axis endpoint 2
3 Either: <Other axis endpoint> - or -

a

Rotation

b

Rotation around major axis

Rotation defines the major to minor axis ratio by rotating a circle about the first axis. The higher the value (0 to 89.4 degrees), the greater the ratio of minor to major axis. A ratio of 0 defines a circle.

Elliptical Arc

Use the ELLIPSE command to create an elliptical arc.

To draw an elliptical arc, you define the ellipse, then specify the section to be the arc. Type ELLIPSE on the command line. At the prompt, type Arc. Then you have the following two choices.
  • <Axis endpoint 1>
  • Center

<Axis endpoint 1>

1 <Axis endpoint 1>
2 Axis endpoint 2
3 Either:

a

<Other axis distance>

b

Either: Parameter -or -

1

<Start angle>

2

Either: Parameter -or-

a

Included

b

Included parameter -or- <end angle>

-or-

a Rotation
b Rotation around major axis
c Either: Parameter -or-

1

<Start angle>

2

Either: Parameter -or-

a

Included

b

Included parameter -or- <end angle>

Center

1 Center
2 Center of ellipse
3 Axis endpoint
4 Either:

a

<Other axis distance>

b

Either: Parameter -or -

1

<Start angle>

2

Either: Parameter -or-

a

Included

b

Included parameter -or- <end angle>

-or-

a Rotation
b Rotation around major axis
c Either: Parameter -or-

1

<Start angle>

2

Either: Parameter -or-

a

Included

b

Included parameter -or- <end angle>

More Information

Rotation

Rotation defines the major to minor axis ratio by rotating a circle about the first axis. The higher the value (0 to 89.4 degrees), the greater the ratio of minor to major axis. A ratio of 0 defines a circle.

Start angle

Specifying a point determines the start angle of the elliptical arc. Specifying a point for the End angle completes the elliptical arc.

Parameter

Parameter requires the same input as Start angle. The difference is that Parameter creates the elliptical arc using the following equation:

p(u) = c + a* cos(u) + b* sin(u)

where c is the center of the ellipse and a and b are its major and minor axes, respectively.

The Parameter option toggles from Angle to Parameter mode and the Angle option toggles from Parameter to Angle mode. The mode you are in determines how the SolidWorks software calculates the ellipse.

Included

Included defines an included angle beginning at the start angle. Enter a point or an angle.


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