# ITickLens

Provides functions for fetching chunks of tick data for a pool

This avoids the waterfall of fetching the tick bitmap, parsing the bitmap to know which ticks to fetch, and then sending additional multicalls to fetch the tick data

### Functions[​](https://docs.uniswap.org/contracts/v3/reference/periphery/interfaces/ITickLens#functions) <a href="#functions" id="functions"></a>

#### getPopulatedTicksInWord[​](https://docs.uniswap.org/contracts/v3/reference/periphery/interfaces/ITickLens#getpopulatedticksinword) <a href="#getpopulatedticksinword" id="getpopulatedticksinword"></a>

```solidity
  function getPopulatedTicksInWord(
    address pool,
    int16 tickBitmapIndex
  ) external returns (struct ITickLens.PopulatedTick[] populatedTicks)
```

Get all the tick data for the populated ticks from a word of the tick bitmap of a pool

**Parameters:**[**​**](https://docs.uniswap.org/contracts/v3/reference/periphery/interfaces/ITickLens#parameters)

| Name              | Type    | Description                                                                                              |
| ----------------- | ------- | -------------------------------------------------------------------------------------------------------- |
| `pool`            | address | The address of the pool for which to fetch populated tick data                                           |
| `tickBitmapIndex` | int16   | The index of the word in the tick bitmap for which to parse the bitmap and fetch all the populated ticks |

**Return Values:**[**​**](https://docs.uniswap.org/contracts/v3/reference/periphery/interfaces/ITickLens#return-values)

| Name             | Type                       | Description                                                 |
| ---------------- | -------------------------- | ----------------------------------------------------------- |
| `populatedTicks` | ITickLens.PopulatedTick\[] | An array of tick data for the given word in the tick bitmap |