Changing Color via ALERT Trigger

Question

Team,
 
Customer has the following scenario:
1. They created a function to change the color of a particular object - created a function within the .JS
2. They want to execute this function everytime a particular Thing Property is within an alert range
3. They have created an ALERT in the Thing Property, but how to connect the ALERT to call the FUNCTION?
 
Please, any better way of doing this?
 
Tks,
Chris

RolandRaytchev · Accepted Answer

In Studio we can also used a Thingworx State definition.

Depending on the value of particular Thingworx Thing property the state will change the apearance of a value

Here in the example the value of Value Display widget is the dependent Field. Means this what is used to decide which state from the thingworx stated defintion is used for the display of the widget

Here is a sample definition for a Style definition :

Regarding to the question how to check a value in a code to execute a function depending on a value change - in this case you can use the Angular js watch construct - something like this:

////////////
$scope.$watch( // watch for the color setting
 function() {
 return $scope.app.params['testNUMber'];
 }
 ,
 function()
 { console.warn("$watch with nubmer= "+ $scope.app.params['testNUMber'])
 $scope.setWidgetProp('gauge-1', 'hiddenValue', $scope.app.params['testNUMber'])
 $scope.setWidgetProp('gauge-1', 'stateFormatValue','hiddenValue')
 }
 //end of the second function
);

This code will call the function when the parameter testNUMber will change its value

In this case it will set the value to hiddenValue /customized value/ this will determing the correct state for the guage display

RolandRaytchev · Answer

Hi @vieirac1 ,one possible option is to use some state base filter - where you bind the value to e.g. application parameter and then used the techniques described in the post :"Using Connection Filters for state-based rendering and value formatting"

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