# altitudeEnvelopeContour

Draw altitude envelope contour plot

## Syntax

## Description

### Draw Contour Plots with Load Factors and Meshes

`altitudeEnvelopeContour(`

draws a
contour plot of the `loadfactor`

)`loadfactor`

matrix in the
*x*-*y* plane. This function is based on the
MATLAB^{®}
`contour`

function. The
*x*-coordinates of the vertices correspond to the column indices of
`loadfactor`

and the *y*-coordinates correspond to
the row indices of `loadfactor`

. The contour automatically chooses the
contour levels.

`altitudeEnvelopeContour(`

draws a contour plot of the `airspeed`

,`altitude`

,`loadfactor`

)`loadfactor`

matrix using vertices from
the mesh that `airspeed`

and `altitude`

define.

### Draw Contour Plots with Customizations

`altitudeEnvelopeContour(___,`

plots an altitude envelope contour specified by the desired levels
`levels`

)`levels`

.

`altitudeEnvelopeContour(___,`

plots an altitude envelope contour specified by the desired line spec
`LineSpec`

)`LineSpec`

.

`altitudeEnvelopeContour(___,`

plots an altitude envelope contour specified by one or more
`Name,Value`

)`Name,Value`

arguments.

`altitudeEnvelopeContour(`

draws an altitude contour plot onto the axes `ax`

,___)*ax*.

### Return Matrix, Contour Object, and Boundary Line Object

`[`

returns contour matrix `c`

,`h`

,`bline`

] = altitudeEnvelopeContour(___)`c`

, a contour object `h`

,
and a vector of `boundaryline`

objects `b`

. To label
the plot, use the `c`

and `bs`

arguments as inputs
to the `clabel`

function when using the
`LabelSpacing`

property.

**Tip**

For more information on the contour matrix, see the Contour Properties property for contour objects.

## Examples

## Input Arguments

## Output Arguments

## More About

## Version History

**Introduced in R2021b**