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Ellipse

Ellipse

Ellipse

System variable PELLIPSE controls the type of newly created ellipses.

The variable value PELLIPSE = 0 creates a true ellipse.

The variable value PELLIPSE = 1 creates a 2D polyline representation of ellipse from arc segments.

Ellipse by Semi-axes

MouseOK    Ribbon: Home, Draw – Draw >  By Semi-axes

MouseOK   Menu: Draw – Ellipse By > эллипс Р Semi-axes

MouseOK   Toolbar: Draw – эллипс Р

KeyboardOK Command line: ELLIPSE1

The command creates an ellipse by center and radiuses.

Command options:

Rotation

Relation between ellipse axes by rotation around first axis.

Command prompts:

Specify center point for ellipse:

Specify center point for ellipse (point 1).

Specify endpoint of axis:

Specify first radius (point 2).

Specify distance to other axis or [Rotation]:

Specify second radius (point 3). 

Ellipse by axis and semi-axis

MouseOK    Ribbon: Home, Draw – Draw >  By Axis and Semi-axis

MouseOK   Menu: Draw – Ellipse By > эллипс ДР Axis and Semi-axis

MouseOK   Toolbar: Draw – эллипс ДР

KeyboardOK Command line: ELLIPSE2, ELLIPSEBYDIAMETER

The command creates an ellipse by axis and semi-axis.

Command options:

Rotation

Relation between ellipse axes by rotation around first axis.

 

Command prompts:

Specify axis endpoint of ellipse:

Specify point 1.

Specify other axis endpoint of ellipse:

Specify diameter of ellipse (point 2).

Specify distance to other axis or [Rotation]:

Specify radius of ellipse (point 3).

Elliptic Arc

MouseOK    Ribbon: Home, Draw – Draw >  Elliptical Arc

MouseOK   Menu: Draw – Ellipse By > эллипс ДУГА Elliptic Arc

MouseOK   Toolbar: Draw – эллипс ДУГА

KeyboardOK Command line: ELLIPTICARC

Command options:

Center

 Center of elliptic arc.

Rotation

Relation between ellipse axes by rotation around the first axis

Parameter

Select Parameter when specifying the start and end points of the elliptic arc to create an elliptic arc according to the parameter vector:

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

c – ellipse center;

a – major axis;

b -  minor axis.

Inner angle

Inner angle of the elliptic arc; specified relative to the origin angle.

Angle

Switch to the arc creation mode by specified angles.

Command prompts:

Specify axis endpoint of elliptical arc or [Center]:

Specify point 1.

Specify other axis endpoint of elliptical arc:

Specify length of ellipse axis (point 2).

Specify distance to other axis or [Rotation]:

Specify length of another axis (point 3).

Specify start angle or [Parameter]:

Specify start angle (point 4).

Specify end angle or [Parameter/Inner angle]:

Specify end angle (point 5).

Creation of ellipses and elliptic arcs with one command

KeyboardOK Command line: EL, ELLIPSE

Universal command allows you to create ellipses by center, minor and major axes, and create elliptic arcs.

Command options:

Arc

Switches to the mode of elliptic arc creation.

Center

Center of ellipse.

Rotation

Creation of ellipse by rotating a circle about the first axis.

Command options of the creation of elliptic arc mode:

Center

 Center of elliptic arc.

Rotation

Relation between ellipse axes by rotation around the first axis.

Parameter

Select Parameter when specifying the start and end points of the elliptic arc to create an elliptic arc according to the parameter vector:

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

c – ellipse center;

a – major axis;

b –  minor axis.

Inner angle

Inner angle of the elliptic arc; specified relative to the origin angle.

Angle

Switch to the arc creation mode by specified angles.

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