# show

Visualize 2D coverage space

Since R2023a

## Syntax

``ax = show(space)``
``ax = show(space,Name=Value)``

## Description

````ax = show(space)` visualizes the polygons in coverage space `space` with numbering corresponding to the order that the polygons were specified at the time of creation of `space`. You can also use the `show` function for showing coverage space polygons that were decomposed with the `coverageDecomposition` function.```

example

````ax = show(space,Name=Value)` specifies additional options using one or more name-value arguments.```

## Examples

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This example shows how to plan a coverage path that surveys the parking lots of the MathWorks Lakeside campus.

Get the geodetic coordinates for the MathWorks Lakeside campus. Then create the limits for our map.

```mwLS = [42.3013 -71.375 0]; latlim = [mwLS(1)-0.003 mwLS(1)+0.003]; lonlim = [mwLS(2)-0.003 mwLS(2)+0.003];```

Create a figure containing the map with the longitude and latitude limits.

```fig = figure; g = geoaxes(fig,Basemap="satellite"); geolimits(latlim,lonlim)```

Get the outline of the first parking lot in longitude and latitude coordinates. Then create the polygon by concatenating them.

```pl1lat = [42.3028 42.30325 42.3027 42.3017 42.3019]'; pl1lon = [-71.37527 -71.37442 -71.3736 -71.37378 -71.375234]'; pl1Poly = [pl1lat pl1lon];```

Repeat the process for the second parking lot.

```pl2lat = [42.30035 42.2999 42.2996 42.2999]'; pl2lon = [-71.3762 -71.3734 -71.37376 -71.37589]'; pl2poly = [pl2lat pl2lon];```

Create the coverage space with both of those polygons, set the coverage space to use geodetic coordinates, and set the reference location to the MathWorks Lakeside campus location.

`cs = uavCoverageSpace(Polygons={pl1Poly,pl2poly},UseLocalCoordinates=false,ReferenceLocation=mwLS);`

Set the height at which to fly the UAV to 25 meters, and the sensor footprint width to 20 meters. Then show the coverage space on the map.

```ReferenceHeight = 25; cs.UnitWidth = 20; show(cs,Parent=g);```

Set the sweep angle for polygons 1 and 2 to `85` and `5` degrees, respectively, to have paths that are parallel to the roads in the parking lots. Then create the coverage planner for that coverage space with the exhaustive solver algorithm.

```setCoveragePattern(cs,1,SweepAngle=85) setCoveragePattern(cs,2,SweepAngle=5) cp = uavCoveragePlanner(cs,Solver="Exhaustive");```

Set the takeoff position to a location in the courtyard, then plan the coverage path.

```takeoff = [42.30089 -71.3752, 0]; [wp,soln] = plan(cp,takeoff); hold on geoplot(wp(:,1),wp(:,2),LineWidth=1.5); geoplot(takeoff(1),takeoff(2),MarkerSize=25,Marker=".") legend("","","Path","Takeoff/Landing") hold off```

## Input Arguments

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Coverage space, specified as an `uavCoverageSpace` object.

### Name-Value Arguments

Specify optional pairs of arguments as `Name1=Value1,...,NameN=ValueN`, where `Name` is the argument name and `Value` is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Example: `show(cs,FontSize=5)`

Parent axes for plotting, specified as either an `Axes` object or a `GeographicAxes` object.

If the value of the `UseLocalCoordinates` property of `space` is `true`, then the parent axes must be a `Axes` object. If the value is `false`, then the parent axes must be a `GeographicAxes` object.

Font size of polygon numbering, specified as a positive numeric scalar. Units are in points, where 1 point = 1/72 of an inch.

Width of polygon outlines, specified as a positive numeric scalar. Units are in points, where 1 point = 1/72 of an inch.

## Output Arguments

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Axes handle, returned as an `Axes` object or a `GeographicAxes` object.

## Version History

Introduced in R2023a