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Vuforia Studio and Chalk Tech Tips

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To reference a function on a voice command or gesture use  viewCtrl.myFunction() where "myFunction" is the name of your function.     Check out the Vuforia Studio Help Center for detailed instructions on creating a HoloLens experience using gestures.  
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PDFs can be linked to experiences using a few methods. Below is an example of using the toggle widget or a toggle button to open and close a PDF within your experience.          Example of JavaScript code to add to Home.js file: $scope.toggleButton = function() { //if the toggle is pressed if ( $scope.view.wdg['toggleButton-1']['pressed']==true) { window.location='app/resources/Uploaded/%5BBD-Logbuch%5D20190208-20190310.pdf' console.log($scope.view.wdg['file-1']['url']) } //unpress the toggle button after 1,5 sec $timeout(function () { $scope.view.wdg['toggleButton-1']['pressed']=false;}, 1500); }      
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In Vuforia studio the best way to interact with 3d model components is to define explicit 3d modelitems (widget modelItem). So this will be an easy way to access the componets and to change their properties e.g. setting of the color  e.g.: $scope.setWidgetProp("modelItem-1", "color",  "rgba(128,0,0,1)");   This will  change the modelItem-1 property color to brown – and will display the component which is specified by this modelItem with a  brown color. Another way to do this in javaScript is something like :   $scope.view.wdg['modelItem-1']['color'] = "rgba(128,0,0, 1);";//brown $scope.view.wdg['modelItem-1']['opacity'] = 0.5;//set transparency to 0.5 //or for the same $scope.setWidgetProp("modelItem-1", "color", "rgba(128,0,0,1);"); //brown $scope.setWidgetProp("modelItem-1", "opacity", 0.5); //set transparency to 0.5   But in some cases during the project development it  could  be helpful when we are  able to manipulate the components or request information about them without defining of explicit modelItem widgets. For example if we want to select a component to see some information about the component and change the color of it:   var PICK_COLOR = "rgba(255,0,0,1)"; ... $timeout( //timeout block 1 function() { //timeout function 1 angular.forEach( //==== for each 3d model block // this will call the function below for each 3d model $element.find('twx-dt-model'), function(value, key) { //for each 3d model block function //===================================================================================== angular.element(value).scope().$on('userpick',function(event,target,parent,edata) { // start the $on() listener 'userpick' + function definition //================================================================================= var pathid = JSON.parse(edata).occurrence; $scope.currentSelection = target + "-" + pathid; // create a component selection e.g. "model-1-/0/0/3/2" console.log("twx.app.isPreview() ="+twx.app.isPreview() ); //print an info if is called in preview mode and could be checked if required try{tml3dRenderer.setColor($scope.currentSelection, PICK_COLOR);} catch (ex) {console.warn("Exception 1 in tml3dRenderer.setColor()=>"+ex);} //will set the color of the selected component } //end of mobile device modelItemsList.push($scope.currentSelection); } //end is in array //================================================================================= }); // finish the $on() listener 'userpick' + function definition } //finish for each 3d model block function ); // finish for each 3d model block //================================================================================= } ,50); // finishtimeout block 1 and function   If  we use  PICK_COLOR  = "rgba(255,0,0,0)"; It means that this color (red) is set for a selected component. Here the one additional detail is the last argument - which have a value of 0. Means alpha channel =0 - or full transparence. On the most mobile devices it will hide the selected component, but this is not supported techniques and we have to use always color with alpha channel >0. / transparent but still visible/   Calling of the tml3dRenderer.setColor(…, undefined); will set the component color back to default - example:   tml3dRenderer.setColor(‘model-1-/0/0/3/2’, undefined);    Another important point is that when we know the model name and know the component ids, in this case we can also set the color or hide components without explicit definition of model items. For example for a particular model we have prepared  a json file (*):     { "/0/0/2" :"rgba(255,0,0,1);", "/0/0/0" :"rgba(128,0,0,1);", "/0/0/5" :"rgba(128,0,128,1);", "/0/0/3/0":"rgba(0,255,0,1);", "/0/0/6" :"rgba(255,200,0,1);", "/0/0/3/1":"rgba(0,0,0,0.2);", "/0/0/7/0":"rgba(0,0,0,0.2);", "/0/0/7/1":"rgba(0,0,0,0.2);" }   The model to which this json file was created is placed in Vuforia Studio as model widget with name=model-1  We can then read this json file (from prject->src\phone\resource\Uploaded folder) with some javaScript construct like (below) and set the color property of the components (also change the transparence - for the components with alpha channel =0.2)  Here an example (*):   //======================================================== // reading a json file with component setting for the components //======================================================== $scope.setCompProps=function() { var FILES_MODEL_COMP = { 'model-1':'comp_info.json' }; $scope.compJSON_Data = new Array(); angular.forEach(FILES_MODEL_COMP, function(jsonFile, target) { console.log("angular.forEach jsonFile = "+jsonFile + ", target="+target); $http.get('app/resources/Uploaded/' + jsonFile).success(function(data, status, headers, config) { $scope.compJSON_Data[target]=data; // in this case is $scope.compJSON_Data['model-1']= of the json structure file here the content'comp_info.json'; angular.forEach(data , function(color, path_id){ console.log("target="+target+" --> color = "+color + ",path_id="+path_id); tml3dRenderer.setColor(target+'-'+path_id, color); });//end for each function }) .error(function(data, status, headers, config) {console.log("calling in foreach 1 failed"); }); }); };     So when we start for this particular model the test code it will change the display of the model according to the setting of the comp_info.json  file:     The code above is more than intended for setting colors and transparency  . According a recommendation from development for hiding of components is better to use  the hidden property:   tml3dRenderer.setProperties($scope.currentSelection, { hidden:true } );   The sample  code below  ( more simplified) is  for the case that we want to blank a component by click on it:   angular.forEach($element.find('twx-dt-model'), function(value, key) { // search all twx-td-model's -> means all model widgets angular.element(value).scope().$on('userpick',function(event,target,parent,edata) { //for each model widget will set a userpick listener try{ console.log('edata');console.warn(edata); console.log("JSON.parse(edata)");console.warn(JSON.parse(edata)); var pathid = JSON.parse(edata).occurrence; $scope.currentSelection = target + "-" + pathid; console.log("=>>"+$scope.currentSelection); } catch (ea) {console.error("not twx-model is clicked but still fired")} try{ // here below the change recommended from R&D tml3dRenderer.setProperties($scope.currentSelection, { hidden:true } ); } catch (e1234) {console.error( "e="+e1234); }   Here tested the code on the HoloLens 1.0 device:     When we have a color definiton  with  opacity -> the alpha channel set here e.g. to 0.1 /  and the defined color should be changed later :   var PICK_COLOR_OPACITY1 = "rgba(,,,0.1)";   to change the rgba expression by setting another value of transparency you can use some construct like this:   var PICK_COLOR_OPACITY1 = "rgba(,,,0.1)"; var OPACITY_VAL=0.3; var PICK_COLOR_OPACITY2= PICK_COLOR_OPACITY1.replace( "0.1)",OPACITY_VAL+")");   The JavaScript code above  will set transperancy value of  0.3 (replacing the 0.1 by 0.3) But for the case that we have in a json file a defintion of color with alpha chanel =0  :     ... "/0/0/3/1":"rgba(0,0,0,0.0);", ...   In this case we can  modify (recommended)  the code to check the value of the alpha channel and if it is ==0 to set  the "hidden" property  - example (*) :   ... //======================================================== // reading a json file with component setting for the components //======================================================== $scope.setCompProps=function() { var FILES_MODEL_COMP = { 'model-1':'comp_info.json' }; $scope.compJSON_Data = new Array(); angular.forEach(FILES_MODEL_COMP, function(jsonFile, target) { console.log("angular.forEach jsonFile = "+jsonFile + ", target="+target); $http.get('app/resources/Uploaded/' + jsonFile).success(function(data, status, headers, config) { $scope.compJSON_Data[target]=data; // in this case is $scope.compJSON_Data['model-1']= of the json structure file here the content'comp_info.json'; //because R&D statement to use hidde property need to check of alpha chanel ==0 angular.forEach(data , function(color, path_id){ console.log("target="+target+" --> color = "+color + ",path_id="+path_id); var start_alpha = color.lastIndexOf(","); var end_alpha = color.lastIndexOf(")"); var alpha_str = color.substring(start_alpha+1, end_alpha); var num = Number(alpha_str); if ( (isNaN(num )) || (num <= 0.0) ) {//set color properly to alpha channel 1.0 var new_color= color.substring(0,start_alpha+1)+"1.0"+ color.substring(end_alpha,color.length) tml3dRenderer.setColor(target+'-'+path_id, new_color); tml3dRenderer.setProperties(target+'-'+path_id, { hidden:true } ); } else { // color unchanged tml3dRenderer.setColor(target+'-'+path_id, color); } });//end for each function }) .error(function(data, status, headers, config) {console.log("calling in foreach 1 failed"); }); }); }; ///////////// ...   The example above will set to the component the correct values of the color but with alpha channel 1.0 and will interpret the original alpha value from the file as setting of the hidden property to true.  Does this make sense? Yes if we later set the hidden property to false then the color setting will be applied according to the definition from  the json file
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1.) The first point  here is to clarify : is it possible to extract model data of 3d models in Vuforia Studio?  ( data could be extracted by Creo View Toolkit apps but here is considered only the Vuforia Studio environment) Supposing , we have a model widget for an assembly model without explicit modelitem  widget definitions. The question is: Can we extract data for the components and if yes,  then what data we can extract? In Vuforia Studio Environment Extracting of data is possible only in Preview mode, because we have in preview mode the method tml3dRenderer.GetObject() where we can access a model object (a component) example:   let comp_widget=tml3dRenderer.GetObject(selection).GetWidget()   where the selection is some thing like "<modelname>-<compPath>" e.g. : "model-1-/0/0/3/2"   Then from the widget we can extract data:   var loc=tml3dRenderer.GetObject(selection).GetWidget().GetLocation() console.error("DEBUG getObj.GetWidget()") console.warn(tml3dRenderer.GetObject(selection).GetWidget())   When we   explore  the different methods in the crome debugging console,  we will find methods to  get or  to set  properties. To extract data, we can use the get... methods.   The methods of  tml3dRenderer.GetObject() seems currently not to work in Vuforia View on end devices (the tml3dRenderer object is a handle of the cordova vuforia plug in and it has a different implementation on the different end devices.In preview mode so far I know, the graphic is based on WebGL and Three.js)  Therefore we will be not able for example to get the data of a component selection on the end device. So means we need a way to extract data in Preview mode and make it available in the Vuforia view on the end device.  Here I did not find a methods to extract the original component name but I was able to create a list (json) with the position data ( I did not add color but this is possible to access it - e.g. tml3dRenderer.GetObject(selection).GetWidget().GetColor()) We can create a json  e.g. of  following data:   {"model-1-/0/0/0":{"valid":false,"orientation":{"x":0,"y":0,"z":0}, "size":{"x":1,"y":1,"z":1},"scale":{"x":1,"y":1,"z":1}, "position":{"x":9.999999998199587e-24,"y":9.999999998199587e-24,"z":9.999999998199587e-24}}, "model-1-/0/0":{"valid":false,"orientation":{"x":0,"y":0,"z":0},"size":{"x":1,"y":1,"z":1}, "scale":{"x":1,"y":1,"z":1},"position":{"x":0,"y":0,"z":0}}, "model-1-/0/0/2":{"valid":false,"orientation":{"x":0,"y":90,"z":0},"size":{"x":1,"y":1,"z":1}, "scale":{"x":1,"y":1,"z":1},"position":{"x":0,"y":0.029500000178813934,"z":-5.51091050576101e-18}}, ...}   we can  assign the json to a variable e.g. $scope.COMP_LOCs So later we can read the current position data on end device:   var selection_location=$scope.COMP_LOCs[l_currentSelection] //read the location data from json varible console.log("selection:"+l_currentSelection+"->X= "+ selection_location.position.x); //print it to console selection_location.position.x= round(parseFloat(selection_location.position.x) + 0.005,4) //add 0.005 shift and round to 4 dec   2.)In point 1.)  we checked how to  extract the data of an compoent (a selection) .But Actually  we have a couple of methods to extract the data but what we do not have is a valid  selection of an assembly  component . This is required to obtain a valid modelitem widget (temporar) via tml3dRenderer.GetObject(). For the selection generation we have the model widget name e.g. “model-1” but   we do not have the component ID paths. To be able to construct a selection handle we need to construct the ID path of a component and then we need to check if it exist. This is some kind of graph search where we have an assembly with a components tree.  There the edges are the ids of the components. e.g. /0/0/1/1 , /0/0/1/2, /0/0/1/4, … etc. One possible algorithm is the deep first search:     To implement this I used the following javaScript code:   ///////////////////////////// var max_asm_depth=6; //this is the max depth in Creo Parametric var max_numb_comp_asm=25; /////////////////////////// ->deep first function check_comp_deep_first_recursively(target,path,arr) { //console.warn("called check_comp_deep_first_recursively(target="+target+",path="+path+")"); var selection = target+'-'+path var path_array = path.split('/') var depth = parseInt(path_array.length) var num = parseInt(path_array[depth -1]) var prev_num = parseInt(path_array[depth -2]) var prev_path = '' for (var i=1;i < depth -1;i++) {prev_path= prev_path +'/' + path_array[i]} if( check_for_valid_selection(selection) == 1) { arr[selection]=tml3dRenderer.GetObject(selection).GetWidget().GetLocation() if( (depth+1) < max_asm_depth) check_comp_deep_first_recursively(target, path + '/0', arr) else { if(num +1 < max_numb_comp_asm) check_comp_deep_first_recursively(target, prev_path + '/'+(num +1), arr)} } else { var right_num = num +1 if(right_num < max_numb_comp_asm) check_comp_deep_first_recursively(target, prev_path + '/'+right_num, arr) else if(!Number.isNaN(prev_num) ) {//console.log("--2") prev_path = '' for (var i=1;i < depth -2;i++) {prev_path = prev_path +'/' + path_array[i]} prev_path = prev_path +'/' + (prev_num +1) check_comp_deep_first_recursively(target, prev_path , arr) } } } ////////////////////////// ///call of the function: $scope.compJSON_loc_Data = new Object(); var target="model-1" check_comp_deep_first_recursively(target,'/0',$scope.compJSON_loc_Data) ...   The code above has the following weak spot - I need to give the maximum depth (max_asm_depth) and the maximum possible branches (max_numb_comp_asm)  The maximum depth currently in Creo assembly is 25 so that value which > 25 will not make a sense.  The value of  max_numb_comp_asm  in a flat assembly (only one level of depth) corresponds to the number of the components - the maximum number of branches on particular level of depth   The another possible algorithm is the breadth first search:     To implement this  I used the following JavaScript code:   ///////////////////////////// var max_asm_depth=6; //this is the max depth in Creo Parametric var max_numb_comp_asm=25; /////////////////function check_comp_at_level(target,num,depth,arr) // ->breadth first function check_comp_at_level(selection,num,depth,arr) { var position =''; // console.log("call check_comp_at_level =>"+selection); try{ // console.log("====== check here ==========="); //console.warn(tml3dRenderer.GetObject(selection).GetWidget().GetLocation()); var loc=tml3dRenderer.GetObject(selection).GetWidget().GetLocation() if( (loc.scale.x == 0) || (loc.scale.y == 0) || (loc.scale.z == 0) ) return 0; // the scale could not be zero //position= tml3dRenderer.GetObject(selection).GetWidget().GetLocation().position //console.warn(position); //arr[selection]=position arr[selection]=loc return arr[selection]; } catch (e) {console.error("failsed with error="+e); return 0;} } /////////////////////////// function check_comp_at_level_recursively(selection,depth,arr) { //console.warn("called check_comp_at_level_recursively("+selection+",depth="+depth+")"); var num =0; if(depth >= max_asm_depth) { //console.log("maximum depth of max_asm_depth ="+max_asm_depth+" reached"); return 0;} for (num=0;num < max_numb_comp_asm; num++) { var currentSelection =selection+'/'+num if(depth <0) return 0; var pos = check_comp_at_level(currentSelection,num,depth,arr) if(pos ==0 ) { continue;} else {check_comp_at_level_recursively(currentSelection,(depth+1),arr) } } //end of for } ////////////////////////// //////////////////////////////// function check_for_valid_selection(selection) { //console.log(" check_for_valid_selection =>"+selection); try{ var loc=tml3dRenderer.GetObject(selection).GetWidget().GetLocation() if( (loc.scale.x == 0) || (loc.scale.y == 0) || (loc.scale.z == 0) ) return 0; return 1; } catch (e) {console.error("failsed with error="+e); return 0;} } /////////////////////////// ///call of the function: $scope.compJSON_loc_Data = new Object(); var target="model-1" check_comp_at_level_recursively(target,'/0',$scope.compJSON_loc_Data) ...     The code for the breadth first search uses also the parameters for maximum depth (max_asm_depth) and the maximum possible branches (max_numb_comp_asm)  - so means it have the mentioned  restriction. If we set a value which is large this will increase the time until the search is completed so therefore depending of the particular assembly we need to set the both parameter properly ( we need to be able to scan the whole assembly but to minimize the search time) For different assemblies the first deep or first breadth could lead to better results. For example, for flat assembly structures the better approach will be to use the first breadth algorithm  But actually the performance is not so important here, because the search will be called one time and  then the json list should be saved.  With the current functionality we can read a file (json file ) from the project  upload directory , but it seems that it is  not  possible to save the information to a e.g. json file there (upload folder). To read a json file form the upload folder we can use some code like this:     target='model-1' $http.get('app/resources/Uploaded/' + jsonFile).success(function(data, status, headers, config) { $scope.compJSON_mod=data; // in this case the data is the received json object angular.forEach(data , function(color, path_id){ $scope.compJSON_Data[path_id] =position; console.log("target="+target+" --> $scope.compJSON_Data["+path_id+"] = "+$scope.compJSON_Data[path_id]); });//end of the error function ////////// finish for each path_id }) .error(function(data, status, headers, config) {console.log("problem in the http will create a new ");   When we want to save data  (the generated json list) we need to use another workaround - we can use a thingworx repository. Following functions /events could be used to save and receive an json object to/from a twx repository:   // the methods SaveJSON and LoadJSON // for the repository object should have //run permision for es-public-access user ////////////////////////////////////////////////////////////// $scope.SaveJsonToTwxRepository = function(path, content) { $scope.$applyAsync(function() { $rootScope.$broadcast('app.mdl.CAD-Files-Repository.svc.SaveJSON', {"content": content, "path":path} );} ,500 ); }; ////////////////////////////////////////////////////////////// $scope.GetJsonFromTwxRepository = function(path) { $scope.$applyAsync(function() { $rootScope.$broadcast('app.mdl.CAD-Files-Repository.svc.LoadJSON', {"path":path} );} ,500 ); $scope.app.speak("after call of GetJsonFromTwxRepository") //in the modelloaded listener register // LoadJSON-complete event -> to laod the data into session rootScope.$on('modelLoaded', function() { //// $scope.$root.$on('LoadJSON-complete', function(event, args) { console.log("LoadJSON-complete event"); $scope.COMP_LOCs=args.data console.log(JSON.stringify( $scope.COMP_LOCs)) }); /// });   In  the code above I use the 'modelloaded' listener to register LoadJSON-complete event . Because the service is called asyncronously- we need this event to load the data into session when it is received from thingworx. Here in this example the repository object is named "CAD-Files-Repository" The Thingworx services should have run permission and it is required to be added in the external data panel :     So when we start the project in PREVIEW mode we can call the search for the assembly structure and save it then  to thingworx. In Vuforia View mode   then we can receive the previously saved json object from thingworx. To check the current mode (if Preview or End Device)  we can use    if(twx.app.isPreview() == true) ...   it will  check if the current mode is preview mode or Vuforia View on the end device - here an example of the workflow:   if(twx.app.isPreview() == true) {// preview mode //calling breadth first - test check_comp_at_level_recursively(target+'-',0,$scope.compJSON_POS_Data) //console.warn($scope.compJSON_POS_Data) //calling deep first a second test and generating a data - locations check_comp_deep_first_recursively(target,'/0',$scope.compJSON_loc_Data) console.log("========================================") console.log("$scope.compJSON_POS_Data ->breadth first") console.log("========================================") console.log(JSON.stringify($scope.compJSON_POS_Data)) console.log("========================================") console.log("") console.log("") console.log("========================================") console.log("$scope.compJSON_loc_Data ->deep first") console.log("========================================") console.log(JSON.stringify($scope.compJSON_loc_Data)) $scope.SaveJsonToTwxRepository('/CADFiles/json_lists/compJSON_loc_Data.json',$scope.compJSON_loc_Data) $scope.GetJsonFromTwxRepository('/CADFiles/json_lists/compJSON_loc_Data.json') console.log("========================================") console.log("") } else { //here is the part on mobile device $scope.GetJsonFromTwxRepository('/CADFiles/json_lists/compJSON_loc_Data.json') }   I tested all points of  the described techniques above in a  test project which I want to provide here as zip file for the HoloLens (hideComponetsHoloLens .zip):     So to be able to test it you need to create in Thingworx a repository thing - means a thing which uses  the thing template "FileRepositroy" with the name "CAD-Files-Repository" and create a folder there "/CADFiles/json_lists/" (if you use another name and another folder (e.g. "/" no folder - the root repository folder) you have to adapt the javaScript code:   ... /CADFiles/json_lists/compJSON_loc_Data.json ... app.mdl.CAD-Files-Repository.svc.SaveJSON' ... app.mdl.CAD-Files-Repository.svc.LoadJSON'    
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Your company might have a css that represents the corporate identity - or you may have other sources of reusable css styles that you want to include with minimal effort. Here is what you have to do to use corporate css files to drive the look and feel of your experiences: Add the corporate css file (e.g. company.css) to your resources In Application styles add the following at the beginning (before any other css style entry: @import url(#{$resources}/Uploaded/company.css);     With the following content in company.css: And this label definition:   Produces this outcome (you see it in the editor as well as in the preview):   Gotcha!    
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This is the third JavaScript quark in the series: it can be used to change a widget color by cycling through a given array of colors. You can find the second quark here.   Here's the code to copy & paste  to your H ome.js :   $scope.cycleColors = function(widget, colors, time, interval) {   let w = (widget.color !== undefined ? widget : $scope.view.wdg[widget]);   if (!w || w.color === undefined) { throw "Cannot color-cycle this widget"; }   let originalColor = w.color;   w.color = colors[0];   w.visible = true;   w.opacity = 1;    let nSteps = Math.ceil(Math.floor(time/interval) / colors.length) * colors.length;   return $interval(iterationCount => w.color = iterationCount === nSteps ? originalColor : colors[iterationCount % colors.length], interval, nSteps); } This JavaScript quark will make the widget color cycle through the colors provided in the colors array. The effect will last time milliseconds, and each color change will happen every interval milliseconds.   Invoke the function like this:   cycleColors(widget, colors, time, interval);   where   widget   is either the id of the widget (e.g.   modelItem-1) or the widget itself (e.g. $scope.view.wdg['modelItem-1']), colors represents an array of colors (e.g. ["rgba(200,0,0,1)", "rgba(0,0,200,1)"]), time represents the total time in milliseconds it takes to execute this effect, and interval represents the amount of time in milliseconds between each color change.   Here's an example:   cycleColors("modelItem-1", ["rgba(200,0,0,1)", "rgba(0,200,0,1)", "rgba(0,0,200,1)"], 2000, 50); This example cycles the model item color through red, green and blue; the effect will last for 2 seconds with a color change every 50 ms.   Comments and suggestions are welcome.   -Alessio  
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This is the second Javascript quark in the series: it can be used to fade a widget out. You can find the first quark here.   Here's the code to copy & paste  to your H ome.js :   $scope.fadeOut = function(widget, time, interval) { let w = (widget.opacity !== undefined ? widget : $scope.view.wdg[widget]); if (time <= 0 || interval <= 0 || w.opacity === undefined) { throw "Cannot fade this widget"; } let steps = Math.floor(time / interval); let opDelta = w.opacity / steps; return $interval(() => w.opacity = (opDelta < w.opacity) ? (w.opacity - opDelta) : 0, interval, steps); } This quark will make the widget fade out from its current opacity to 0 in time milliseconds, uniformly decrementing opacity at every interval .   Invoke the function like this:   fadeOut(widget, time, interval);   where   widget   is either the id of the widget (e.g.   modelItem-1) or the widget itself (e.g. $scope.view.wdg['modelItem-1']), time represent the total time it takes to fade the widget out from its current opacity, and interval represents the amount of time between each opacity change.   Here's an example:   fadeOut('modelItem-1', 2000, 50); This example fades the model item out by bringing its current opacity to zero after 2 seconds with an opacity change every 50 ms.   Comments and suggestions are welcome.   -Alessio    
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Hi,   we can do many tricks with Javascript in Studio and most of the times it's just a matter of copying & pasting the right code.   I'd like all Studio users, not just coders, to benefit from this, and thought I could drop here a snippet to blink a widget.    I call this a quark - from the particle physics standard model - and not atom, because it's really a smaller building block than an atom    Blinking a widget can be useful, for example, if you are not using Creo Illustrate to create a sequence but still want to draw the user attention to some item in the scene.     Here's the Javascript code to copy & paste  to your H ome.js:  (to Javascript coders: I'm using modern Javascript syntax, don't be frightened by that )   $scope.blink = function(widget, times, interval) { let w = (widget.visible !== undefined ? widget : $scope.view.wdg[widget]); if (!w || w.visible === undefined) { throw "Cannot blink this widget"; } $interval(() => w.visible = !w.visible, interval, times); }    Invoke the function like this:   blink(widget, times, delay); where widget is either the id of the widget (e.g. modelItem-1) or the widget itself (e.g. $scope.view.wdg['modelItem-1']). The other two numbers are the number of times that you want visibility to change, and the amount of milliseconds between each visibility change.     Here follow some examples.   You want to blink the widget 4 times with a 300 ms interval (and leave the widget visible at the end): blink('modelItem-1', 2*4, 300);   You want to blink the widget 4 times with a 300 ms interval (and leave the widget not visible at the end): blink('modelItem-1', 2*4+1, 300);   You can comment and suggest additional quarks if you want.   Alessio  
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