> ## Documentation Index
> Fetch the complete documentation index at: https://docs.resq.software/llms.txt
> Use this file to discover all available pages before exploring further.

# Resq common geo NoFlyZone

## NoFlyZone

```cpp theme={null}
#include <nfz.hpp>
```

No-Fly Zone polygon definition.

Represents a restricted airspace area as a polygon. Altitude bounds define the vertical extent of the restriction.

### Public Attributes

| Return                    | Name                                | Description                            |
| ------------------------- | ----------------------------------- | -------------------------------------- |
| `std::string`             | [`id`](#id)                         | Unique identifier for the NFZ.         |
| `NFZType`                 | [`type`](#type)                     | Type of no-fly zone.                   |
| `std::vector< GeoPoint >` | [`vertices`](#vertices)             | Polygon vertices (lat, lon pairs)      |
| `double`                  | [`min_altitude_m`](#min_altitude_m) | Minimum altitude affected (meters MSL) |
| `double`                  | [`max_altitude_m`](#max_altitude_m) | Maximum altitude affected (meters MSL) |

***

#### id

```cpp theme={null}
std::string id
```

Unique identifier for the NFZ.

***

#### type

```cpp theme={null}
NFZType type
```

Type of no-fly zone.

***

#### vertices

```cpp theme={null}
std::vector< GeoPoint > vertices
```

Polygon vertices (lat, lon pairs)

***

#### min\_altitude\_m

```cpp theme={null}
double min_altitude_m
```

Minimum altitude affected (meters MSL)

***

#### max\_altitude\_m

```cpp theme={null}
double max_altitude_m
```

Maximum altitude affected (meters MSL)

### Public Methods

| Return | Name                                              | Description                                             |
| ------ | ------------------------------------------------- | ------------------------------------------------------- |
| `bool` | [`contains_point`](#contains_point) `const`       | Check if a point is inside the NFZ polygon (horizontal) |
| `bool` | [`contains_altitude`](#contains_altitude) `const` | Check if an altitude is within the NFZ vertical bounds. |
| `bool` | [`contains`](#contains-3) `const`                 | Check if a point (including altitude) is in the NFZ.    |

***

#### contains\_point

`const`

```cpp theme={null}
inline bool contains_point(const GeoPoint & point) const
```

Check if a point is inside the NFZ polygon (horizontal)

#### Parameters

* `point` The geographic point to check

#### Returns

true if point is inside the polygon

***

#### contains\_altitude

`const`

```cpp theme={null}
inline bool contains_altitude(double altitude_m) const
```

Check if an altitude is within the NFZ vertical bounds.

#### Parameters

* `altitude_m` Altitude in meters

#### Returns

true if altitude is within the NFZ vertical extent

***

#### contains

`const`

```cpp theme={null}
inline bool contains(const GeoPoint & point) const
```

Check if a point (including altitude) is in the NFZ.

#### Parameters

* `point` The 3D geographic point

#### Returns

true if point is within the NFZ