Loop in Illustrate ignored in Studio?

@feil  Could you please provide more info about how you are using the loop inside Studio application.

As I already mentioned I requested info by PTC dev team.  The development confirmed that this functionality is not used in Vuforia Studio

DEV STATEMENT:

=================

"

looping is only used for preview - it is not saved as part of the sequence definition so the only way to acheve what you are trying to achieve is through (java)scripting. Note it makes virtually no sense to record/define an step-by-step animation with 'loops' - why would the user want to see the same thing replayed ad-infinitum.  Yes, there are cases where a user might say 'show me again' but that applies for any step. 

so, if you want to repeat a step, use the scripting capabilities in Studio

"

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So means we can achieve this functionality if use a script which will implement the loop. 

For example we can  stepcompleted event as desribed in  the tech tip "List of Vuforia Studio events which we could be used as listener by javaScript/angular.js"  Item 2

E.g. from the callback function  we can execute the play service to have a loop.

scope.$on('stepcompleted', function(evt, arg1, arg2, arg3) { 
 var parsedArg3 = JSON.parse(arg3);
console.log("stepcompleted stepNumber="+parsedArg3.stepNumber + " nextStep="+parsedArg3.nextStep);
 
$scope.app.stepNumber=parseInt(parsedArg3.stepNumber);
$scope.app.nextStep=parseInt(parsedArg3.nextStep);
$scope.app.duration=parseFloat(parsedArg3.duration);
//here the $scope.current_modelName and $scope.current_figure and $scope.loop_continue
//are a global variables where we defined the current modelname, used figure and if loop should continue 
$scope.app.playModelStep($scope.current_figure,$scope.current_modelName,$scope.app.stepNumber,true)
 
});

//////////////
//definition of the play function
$scope.app.playModelStep = function (sequence,modelName,step_number,play) {
//sequnece -sequnece name e.g. TestFigure1 - as shown in UI
//modelName - model name e.g. model-1
//step_number - set this number to current step
//play true/false execute play for the model
 
$scope.$applyAsync(()=>{$scope.setWidgetProp(modelName, 'sequence', '');});


 $timeout(function () {
 $scope.$applyAsync(()=>{$scope.setWidgetProp(modelName, 'sequence', 'app/resources/Uploaded/l-Creo 3D - '+sequence +'.pvi');}); 
 },50);

 $timeout(function () {
 
 $scope.$applyAsync(()=>{$scope.setWidgetProp(modelName, 'currentStep', parseInt(step_number));});
 
 if(play) //check if play should be applyed
 
 $timeout(function () {angular.element(document.getElementById(modelName)).scope().play(); }, 100);
 }, 500);
};
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