Actual zone docs

source/components/zone.markdown

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+---
+layout: page
+title: "Zone"
+description: "Instructions how to setup zones within Home Assistant."
+date: 2015-10-04 09:23
+sidebar: false
+comments: false
+sharing: true
+footer: true
+---
+
+Zones allow you to specify certain regions on earth (for now). When a device tracker sees a device
+to be within a zone, the state will take the name from the zone. Zones can also be used as a
+[trigger](/components/automation.html#zone-trigger) or [condition](/components/automation.html#zone-condition)
+inside automation setups.
+
+Zones support the usual method to specify multiple zones, use keys `zone:`, `zone 2:` etc.
+
+```yaml
+# Example configuration.yaml entry
+zone:
+  name: School
+  latitude: 32.8773367
+  longitude: -117.2494053
+  # Optional radius in meters (default: 100)
+  radius: 250
+  # Optional icon to show instead of name
+  icon: group-work
+
+zone 2:
+  name: Work
+  latitude: 32.8753367
+  longitude: -117.2474053
+
+# This will override the default home zone
+zone 3:
+  name: Home
+  latitude: 32.8793367
+  longitude: -117.2474053
+  radius: 100
+  icon: social:people
+```
+
+#### {% linkable_title Home zone %}
+
+If no configuration is given, the zone component will create a zone for home. This zone will use
+location given in the `configuration.yaml` file and have a radius of 100 meters. To override this,
+create a zone configuration and name it 'Home'.
+
+#### {% linkable_title Icons %}
+
+It is preferred to pick an icon to use for your zone. By default, Home Assistant includes most of the
+[material icons](https://www.google.com/design/icons/). See [the source][icon-source] for a specific list which
+categories are included.
+
+For all but the action category you will need to prefix the icon name with its category. For example
+`social:people` or `av:radio`. For the action category, you will not need to do this, examples are
+`home`, `work,`, `group-work` and `shopping-cart`.
+
+[icon-source]: https://github.com/balloob/home-assistant-polymer/blob/master/src/resources/home-assistant-icons.html#L3