## Calculate a distance matrix between points

`routing().matrix(RoutingMatrixParamsparams, RequestOptionsrequestOptions = RequestOptions.none()) : MatrixResult`

**post** `/api/v1/matrix`

Calculate a distance matrix between points

### Parameters

- `params: RoutingMatrixParams`

  - `matrixRequest: MatrixRequest`

### Returns

- `class MatrixResult:`

  - `distances: List<List<Double>>`

    Distance matrix (meters), origins x destinations

  - `durations: List<List<Double>>`

    Duration matrix (seconds), origins x destinations

### Example

```kotlin
package com.plazafyi.example

import com.plazafyi.client.PlazaClient
import com.plazafyi.client.okhttp.PlazaOkHttpClient
import com.plazafyi.models.GeoJsonGeometry
import com.plazafyi.models.routing.MatrixRequest
import com.plazafyi.models.routing.MatrixResult
import com.plazafyi.models.routing.RoutingMatrixParams

fun main() {
    val client: PlazaClient = PlazaOkHttpClient.fromEnv()

    val params: MatrixRequest = MatrixRequest.builder()
        .destinations(GeoJsonGeometry.builder()
            .coordinatesOfDoubles(listOf(0.0))
            .type(GeoJsonGeometry.Type.POINT)
            .build())
        .origins(GeoJsonGeometry.builder()
            .coordinatesOfDoubles(listOf(0.0))
            .type(GeoJsonGeometry.Type.POINT)
            .build())
        .build()
    val matrixResult: MatrixResult = client.routing().matrix(params)
}
```

#### Response

```json
{
  "distances": [
    [
      0
    ]
  ],
  "durations": [
    [
      0
    ]
  ]
}
```