Main Content

fieldsCustom

Plot electric or magnetic field of antenna

collapse all in page

Syntax

fieldsCustom(field,points)
fieldsCustom(field,points,scalefield)
qobj = fieldsCustom(___)
fieldsCustom(axeshandle,___)

Description

fieldsCustom(field,points) plots electric or magnetic field vectors, fields, at specified points in space, points, in the current axes.

example

fieldsCustom(field,points,scalefield) scales the field arrows by a scalar value, scalefield.

example

qobj = fieldsCustom(___) returns the quiver object, using either of the previous syntaxes.

fieldsCustom(axeshandle,___) plots into the axes specified by axeshandle instead of the current axes.

Examples

collapse all

Open Live Script

Load and visualize the magnetic field data available in the file 'fielddata.mat'.

load fielddata
fieldsCustom(H,p)

Figure contains an axes object. The axes object with xlabel X, ylabel Y contains an object of type quiver.

Scale the magnetic field arrows by a factor of 2.

figure
fieldsCustom(H,p,2)

Figure contains an axes object. The axes object with xlabel X, ylabel Y contains an object of type quiver.

Input Arguments

collapse all

Complex electric field strength vector in V/m or magnetic field strength vector in A/m at field points, specified as a 3-by-p complex matrix. p is the number of points in space.

Data Types: double
Complex Number Support: Yes

Cartesian coordinates x, y, and z of field points, specified as a 3-by-p real matrix. p is the number of points in space.

Data Types: double

Axis handle, specified as an axes object.

Data Types: char

Value by which to scale the field arrows, specified as a scalar. A value of 2 doubles the relative length of the field arrows. A value of 0.5 halves the length of the field arrows. A value of 0 plots the field arrows without automatic scaling.

Example: 2

Data Types: double

Output Arguments

collapse all

Electric or magnetic field plot, returned as quiver object.

Version History

Introduced in R2016a

See Also

| |