=====AlertProperty=====

====Summary====
The **AlertProperty** effect adds an alert that only exists at //runtime// (ie. only when ARDI-VE is running).

They are often used to drive cosmetic effects based on calculations that aren't being performed in your existing control or information management system(s). 

====Parameters====

===Property===
//Type: [[property_name]]
Default: None//

The property to compare.

===Comparison===
//Type: [[text]]
Default: ge//

The type of comparison to perform. Must be one of the following values...

^Code^Meaning^
|=|**Equal**. Alert raised if the values are exactly equal|
|less|**Less Than**. Alert raised if the //property// is less than the //value//.|
|more|**More Than**. Alert raised if the //property// is more than the //value//.|
|le|**More Than or Equal**. Alert raised if the //property// is less or equal to the //value//.|
|ge|**Less Than or Equal**. Alert raised if the //property// is greater than or equal to the //value//.|
|in|**Inside a Window**. Alert raised if the //property// is greater than or equal to the //value//.|
|out|**Outside a Window**. Alert raised if the //property// is greater than or equal to the //value//.|

===Value===
//Type: [[float]] [[bindable]]
Default: **0**//

The value to compare against. 

When dealing with the **in** and **out** //comparison// options, this value is a dash-separated range. For example, a range of 10 to 25 would be 10-25.

**Note that you can not bind to a RANGE when your comparison mode is //in// or //out//**

====Examples====

<code>
<alertproperty property="level" comparison="ge" value="80"/>
</code>

> This creates an alert that will appear on-top of an asset once the level is greater than or equal to 80%.

<code>
<alertproperty property="pressure" comparison="le" value="240"/>
</code>

> In this case, the alert activates when the pressure drops below 251.