# LOC\_BUILDER\_DD

`LOC_BUILDER_DD({})` actually takes an object with the following properties:

* label (optional, defaults to `@`)
* x (float32)
* y (float32)
* alt (float32, optional)
* ttl (optional)

A helper to build [`LOC`](/language-reference/domain-modifiers/loc.md) records. Supply four parameters instead of 12.

Internally assumes some defaults for [`LOC`](/language-reference/domain-modifiers/loc.md) records.

The cartesian coordinates are decimal degrees, like you typically find in e.g. Google Maps.

Examples.

Big Ben: `51.50084265331501, -0.12462541415599787`

The White House: `38.89775977858357, -77.03655125982903`

{% code title="dnsconfig.js" %}

```javascript
D("example.com", REG_MY_PROVIDER, DnsProvider(DSP_MY_PROVIDER),
  LOC_BUILDER_DD({
    label: "big-ben",
    x: 51.50084265331501,
    y: -0.12462541415599787,
    alt: 6,
  }),
  LOC_BUILDER_DD({
    label: "white-house",
    x: 38.89775977858357,
    y: -77.03655125982903,
    alt: 19,
  }),
  LOC_BUILDER_DD({
    label: "white-house-ttl",
    x: 38.89775977858357,
    y: -77.03655125982903,
    alt: 19,
    ttl: "5m",
  }),
);
```

{% endcode %}

Part of the series:

* [`LOC()`](/language-reference/domain-modifiers/loc.md) - build a `LOC` by supplying all 12 parameters
* [`LOC_BUILDER_DD({})`](/language-reference/domain-modifiers/loc_builder_dd.md) - accepts cartesian x, y
* [`LOC_BUILDER_DMS_STR({})`](/language-reference/domain-modifiers/loc_builder_dms_str.md) - accepts DMS 33°51′31″S 151°12′51″E
* [`LOC_BUILDER_DMM_STR({})`](/language-reference/domain-modifiers/loc_builder_dmm_str.md) - accepts DMM 25.24°S 153.15°E
* [`LOC_BUILDER_STR({})`](/language-reference/domain-modifiers/loc_builder_str.md) - tries the coordinate string in all `LOC_BUILDER_DM*_STR()` functions until one works


---

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