# Mesh Tools

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## Introduction

```csharp
public static class MeshTools
```

Found in namespace:

```csharp
using HeathenEngineering.UnityPhysics.API;
```

{% hint style="info" %}
We recommend using aliases to reduce typing and simplify names. and reduce possible collisions with similarly named objects.

```csharp
using API = HeathenEngineering.UnityPhysics.API;
```

doing this you can fully qualify the name of this class as

```csharp
API.MeshTools
```

{% endhint %}

### What can it do?

Mesh tools is used to create convex hulls, calculate the volume of a mesh, find surface area and various other geometry functions handy when your working on physics problems.

## Convex Hull

The most common use of mesh tools is to create a convex hull. You can get a convex hull for a single mesh, multiple mesh or for any collection of points in space.

```csharp
var mesh = MeshTools.ConvexHull(meshfilters);
```

```csharp
var mesh = MeshTools.ConvexHull(meshes);
```

```csharp
var mesh = MeshTools.ConvexHull(vertexList);
```

## Mesh Volume

You can find the volume of a mesh, or find the convex hull of a mesh then find the volume of that

```csharp
var volume = MeshTools.VolumeOfConvexMesh(mesh, scale);
```

or

```csharp
var volume = MeshTools.VolumeOfMesh(mesh, scale);
```

## Surface Area

### Whole Mesh

```csharp
var surface = MeshTools.SurfaceArea(mesh);
```

### Cross Section area

```csharp
var surface = MeshTools.FacingSurfaceArea(mesh, direction);
```

## Area and Volume

A quick short cut to do both 

```csharp
MeshTools.GetAreaAndVolume(mesh, scale, out surface, out volume);
```


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