<commit_before># Isoline Functions

The following functions provide an isolines generator service based on time or distance. This service uses the isolines service defined for the user (currently, only the Here isolines service is available).

**This service is subject to quota limitations, and extra fees may apply**. Please view our [terms and conditions](https://cartodb.com/terms/) and check out the [Quota information section](http://docs.cartodb.com/cartodb-platform/dataservices-api/quota-information/) for details and recommendations related with quota usage.

### cdb_isodistance(_source geometry, mode text, range integer[], [options text[]]_)

#### Arguments

Name | Type | Description | Accepted values
--- | --- | --- | ---
`source` | `geometry` | Source point, in 4326 projection, which defines the start location. |
`mode` | `text` | Type of transport used to calculate the isolines. | `car` or `walk`
`range` | `integer[]` | Range of the isoline, in meters. |
`options` | `text[]` | (Optional) Multiple options to add more capabilities to the analysis. See [Optional isolines parameters](#optional-isoline-parameters) for details.


#### Returns

Name | Type | Description
--- | --- | ---<commit_msg>added link to HERE coverage<commit_after># Isoline Functions

The following functions provide an isolines generator service based on time or distance. This service uses the isolines service defined for the user (currently, only the [HERE](https://developer.here.com/coverage-info) isolines service is available).

**This service is subject to quota limitations, and extra fees may apply**. Please view our [terms and conditions](https://cartodb.com/terms/) and check out the [Quota information section](http://docs.cartodb.com/cartodb-platform/dataservices-api/quota-information/) for details and recommendations related with quota usage.

### cdb_isodistance(_source geometry, mode text, range integer[], [options text[]]_)

#### Arguments

Name | Type | Description | Accepted values
--- | --- | --- | ---
`source` | `geometry` | Source point, in 4326 projection, which defines the start location. |
`mode` | `text` | Type of transport used to calculate the isolines. | `car` or `walk`
`range` | `integer[]` | Range of the isoline, in meters. |
`options` | `text[]` | (Optional) Multiple options to add more capabilities to the analysis. See [Optional isolines parameters](#optional-isoline-parameters) for details.


#### Returns

Name | Type | Description
--- | --- | ---
{'fraction_non_alphanumeric': 0.1223916532905297, 'fraction_numerical': 0.0032102728731942215, 'mean_word_length': 4.479120879120879, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 3, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '2098157', 'n_tokens_mistral': 666, 'n_tokens_neox': 636, 'n_words': 276}