# TriangleEdgeTreatment

[View Source](https://github.com/material-components/material-components-android/blob/1.14.0/lib/java/com/google/android/material/shape/TriangleEdgeTreatment.java)

*** ** * ** ***


```
public class TriangleEdgeTreatment extends EdgeTreatment
```

<br />

|---|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) |||
| ↳ | [com.google.android.material.shape.EdgeTreatment](https://developer.android.com/reference/com/google/android/material/shape/EdgeTreatment) ||
|   | ↳ | [com.google.android.material.shape.TriangleEdgeTreatment](https://developer.android.com/reference/com/google/android/material/shape/TriangleEdgeTreatment) |

*** ** * ** ***

An edge treatment which draws triangles at the midpoint of an edge, facing into or out of the shape.

If you want to draw a triangular shape below a circle (similar to a map marker), use `https://developer.android.com/reference/com/google/android/material/shape/MarkerEdgeTreatment` instead.

## Summary

| ### Public constructors |
|---|
| `https://developer.android.com/reference/com/google/android/material/shape/TriangleEdgeTreatment#TriangleEdgeTreatment(float,boolean)(float size, boolean inside)` Instantiates a triangle treatment of the given size, which faces inward or outward relative to the shape. |

| ### Public methods |
|---|---|
| `void` | `https://developer.android.com/reference/com/google/android/material/shape/TriangleEdgeTreatment#getEdgePath(float,float,float,com.google.android.material.shape.ShapePath)( float length, float center, float interpolation, https://developer.android.com/reference/com/google/android/material/shape/ShapePath shapePath )` Generates a `https://developer.android.com/reference/com/google/android/material/shape/ShapePath` for this edge treatment. |

| ### Inherited methods |
|---|
| From [com.google.android.material.shape.EdgeTreatment](https://developer.android.com/reference/com/google/android/material/shape/EdgeTreatment) |---|---| | `void` | `[getEdgePath](https://developer.android.com/reference/com/google/android/material/shape/EdgeTreatment#getEdgePath(float,float,com.google.android.material.shape.ShapePath))(float length, float interpolation, https://developer.android.com/reference/com/google/android/material/shape/ShapePath shapePath)` **This method is deprecated.** Does not support interpolation. <br /> | |

## Public constructors

### TriangleEdgeTreatment

```
public TriangleEdgeTreatment(float size, boolean inside)
```

Instantiates a triangle treatment of the given size, which faces inward or outward relative to the shape.

| Parameters |
|---|---|
| `float size` | the length in pixels that the triangle extends into or out of the shape. The length of the side of the triangle coincident with the rest of the edge is 2 \* size. |
| `boolean inside` | true if the triangle should be "cut out" of the shape (i.e. inward-facing); false if the triangle should extend out of the shape. |

## Public methods

### getEdgePath

```
public void getEdgePath(
    float length,
    float center,
    float interpolation,
    ShapePath shapePath
)
```

Generates a `https://developer.android.com/reference/com/google/android/material/shape/ShapePath` for this edge treatment.

EdgeTreatments have an origin of (0, 0) and a destination of (0, length) (i.e. they represent the top edge), and are automatically rotated and scaled as necessary when applied to other edges. Only the horizontal, top EdgeTreatment needs to be defined in order to apply it to all four edges.

| Parameters |
|---|---|
| `float length` | the length of the edge. |
| `float center` | the distance to the center of the edge. This takes into account any offset added by the proceeding corner. Drawing anything at (center, 0) will be center aligned with the shape. Normally you'll want to use this instead of length / 2. |
| `float interpolation` | the interpolation of the edge treatment. Ranges between 0 (none) and 1 (fully) interpolated. Custom edge treatments can implement interpolation to support shape transition between two arbitrary states. Typically, a value of 0 indicates that the custom edge treatment is not rendered (i.e. that it is a straight line), and a value of 1 indicates that the treatment is fully rendered. Animation between these two values can "heal" or "reveal" an edge treatment. |
| `https://developer.android.com/reference/com/google/android/material/shape/ShapePath shapePath` | the `https://developer.android.com/reference/com/google/android/material/shape/ShapePath` that this treatment should write to. |