antenna.Ellipse

Create ellipse centered at origin on X-Y plane

Since R2020a

Description

Use the antenna.Ellipse object to create an ellipse centered at the origin on the X-Y plane.

Creation

Syntax

ellipse = antenna.Ellipse

ellipse = antenna.Ellipse(Name=Value)

Description

ellipse = antenna.Ellipse creates an ellipse centered at the origin on the X-Y plane.

ellipse = antenna.Ellipse(Name=Value) sets properties using one or more name-value arguments. Name is the property name and Value is the corresponding value. You can specify several name-value arguments in any order as Name1= Value1, ..., NameN=ValueN. Properties not specified retain their default values.

Properties

Name — Name of ellipse

"myEllipse" (default) | string | character vector

Name of ellipse, specified as a string or a character vector.

Example: "ellipse1"

Data Types: char | string

Center — Cartesian coordinates of ellipse center

[0 0] (default) | two-element vector

Cartesian coordinates of center of ellipse, specified as a two-element vector with each element measured in meters.

Example: [0.006 0.006]

Data Types: double

Major axis — Major axis of ellipse

1 (default) | scalar

Major axis of ellipse, specified as a scalar in meters.

Example: 2

Data Types: double

Minor axis — Minor axis of ellipse

0.5 (default) | scalar

Minor axis of the ellipse, specified as a scalar in meters.

Example: 0.9

Data Types: double

NumPoints — Number of discretization points on circumference

30 (default) | scalar

Number of discretization points on circumference, specified as a scalar.

Example: 28

Data Types: double

Object Functions

add	Boolean unite operation on two shapes
subtract	Boolean subtraction operation on two shapes
intersect	Boolean intersection operation on two shapes
plus	Shape1 + Shape2
minus	Shape1 - Shape2
and	Shape1 & Shape2
area	Calculate area of shape in square meters
show	Display antenna, array structures or shapes
plot	Plot boundary of shape
mesh	Mesh properties of metal, dielectric antenna, or array structure
rotate	Rotate shape about axis and angle
rotateX	Rotate shape about x-axis and angle
rotateY	Rotate shape about y-axis and angle
rotateZ	Rotate shape about z-axis and angle
translate	Move shape to new location
scale	Change the size of the shape by a fixed amount
mirrorX	Mirror shape along X-axis
mirrorY	Mirror shape along Y-axis
removeHoles	Remove holes from shape
removeSlivers	Remove sliver outliers from boundary of shape

Examples

Create an Ellipse with Default Properties

Create ellipse using antenna.Ellipse object.

e1 = antenna.Ellipse

e1 = 
  Ellipse with properties:

         Name: 'myEllipse'
       Center: [0 0]
    MajorAxis: 1
    MinorAxis: 0.5000
    NumPoints: 30

View the antenna.Ellipse object using the show function.

show(e1)

Create an Ellipse with Specified Properties

Create an ellipse with major axis of 2 m and a minor axis of 0.8 m.

e2 = antenna.Ellipse(MajorAxis=2,MinorAxis=0.8)

e2 = 
  Ellipse with properties:

         Name: 'myEllipse'
       Center: [0 0]
    MajorAxis: 2
    MinorAxis: 0.8000
    NumPoints: 30

Create a mesh with a Maximum edge Length of 20 cm.

mesh(e2,MaxEdgeLength=2e-1) 

Subtract Two Shapes

Create an ellipse with default properties.

 e3 = antenna.Ellipse;

Create a rectangle with a length of 0.1 m and width of 0.2 m.

 r = antenna.Rectangle(Length=0.1,Width=0.2);

Subtract the two shapes using the minus operator.

 s = e3-r;

Mesh the subtracted shape with a maximum edge length of 1 m.

 mesh(s,1)

Version History

Introduced in R2020a