---
title: "PathMeasure"
description: ""
type: "interface"
---

<div class='type'>Interface</div>


<a id='references'></a>

<div class='sourceset sourceset-common'>Common</div>



```kotlin
@JvmDefaultWithCompatibility
interface PathMeasure
```

## Properties

<div class='sourceset sourceset-common'>Common</div>


```kotlin
val length: Float
```


The total length of the current contour, or 0 if no path is associated with this measure
object.



## Functions

```kotlin
fun getSegment(
        startDistance: Float,
        stopDistance: Float,
        destination: Path,
        startWithMoveTo: Boolean = true,
    ): Boolean
```


Given a start and stop distance, return in dst the intervening segment(s). If the segment is
zero-length, return false, else return true. startD and stopD are pinned to legal values
(0..getLength()). If startD >= stopD then return false (and leave dst untouched). Begin the
segment with a moveTo if startWithMoveTo is true.


```kotlin
fun setPath(path: Path?, forceClosed: Boolean)
```


Assign a new path, or null to have none.


```kotlin
fun getPosition(distance: Float): Offset
```


Pins distance to 0 <= distance <= getLength(), and then computes the corresponding position

#### Parameters

| | |
| --- | --- |
| distance | The distance along the current contour to sample |


#### Returns

| | |
| --- | --- |
|  | `Offset.Unspecified` if there is no path set |



```kotlin
fun getTangent(distance: Float): Offset
```


Pins distance to 0 <= distance <= getLength(), and then computes the corresponding tangent

#### Parameters

| | |
| --- | --- |
| distance | The distance along the current contour to sample |


#### Returns

| | |
| --- | --- |
|  | `Offset.Unspecified` if there is no path set |