topic Re: Javascript api, info bubbles for stacked graphics in ArcGIS JavaScript Maps SDK Questions

Javascript api, info bubbles for stacked graphics

alexlambson — Wed, 16 Jul 2014 16:44:05 GMT

Hey guys.

Basically, what I need to do is have the left/right arrows of an infobubble cycle between two graphics that are at the same coordinates. I tried putting them on seperate graphic layers, but it did not give me the arrow.

Logic

See if two markers have the same coordinates -> link their info bubbles if they do.

Here is how I am separating the layers.

point = new esri.geometry.Point(item.lon, item.lat);  coordinateCheck = item.lat;  graphic = new esri.Graphic(point, symbol);  graphic.setAttributes({'title': checkbox, 'desc': content});  if (usedCoordinates.indexOf(coordinateCheck) > -1){     graphicsLayer2.add(graphic);     console.log('added to layer 2'); } else {     graphicsLayer.add(graphic);     usedCoordinates.push(coordinateCheck);     console.log('added to layer 1 ' + usedCoordinates); }

Will this method work? How do I get the stacked markers to link info bubbles.

Re: Javascript api, info bubbles for stacked graphics

ReneRubalcava — Wed, 16 Jul 2014 17:12:27 GMT

You can add the features to the maps infoWindow which is an instance of the Popup

popup-amd | API Reference | ArcGIS API for JavaScript‌

So you could take your graphics and do something like

map.infoWindow.setFeatures([graphic1, graphic2]); // pass it an array of your graphics
map.infoWindow.show(e.mapPoint); // assuming this occurs after a maps click event

Be sure to use map.infoWindow.clearFeatures() every time you need to reset it.

Here is a section from docs on working with Popups

Info windows and graphics | Guide | ArcGIS API for JavaScript‌

Re: Javascript api, info bubbles for stacked graphics

alexlambson — Wed, 16 Jul 2014 17:28:04 GMT

I have the graphics displaying their popups, but I cannot get graphics to cycle between each other.

I should probably mention that all of the markers are generated client-side from JSON data from our database.

Re: Javascript api, info bubbles for stacked graphics

ReneRubalcava — Wed, 16 Jul 2014 17:31:56 GMT

If you use the map.infoWindow.setFeatures([n1,n2,...]) that should cycle the graphics in the popup. Can you post the code you're using to display the popups?

Re: Javascript api, info bubbles for stacked graphics

alexlambson — Wed, 16 Jul 2014 17:45:39 GMT

//map is pulled from a webmap id

var graphicsLayer = new esri.layers.GraphicsLayer({
              infoTemplate: template,
              outFields: ["*"]
          });
          var graphicsLayer2 = new esri.layers.GraphicsLayer({
              infoTemplate: template,
              outFields: ["*"]
          }); //create an artboard for our beautiful markers to rest on 
          map.addLayers([graphicsLayer, graphicsLayer2]);

function getIdResults(ids, sortOrder, sortby) {
        map.resize(true);
        map.hideZoomSlider();
        var resData = {'T_IDTrans':ids, 'sortbyfield':sortby, 'sortbylist':sortOrder};
        //reset the map position for seacrh
        //this is done because the window resizes and causes the map to be left of stg.
        var origin = esri.geometry.Point(-113.5581, 37.0953);
        map.centerAndZoom(origin, 12);
        
        graphicsLayer2.clear() //clean up
        graphicsLayer.clear();//give us a clean map
        usedCoordinates = []; //initialize and/or clear the coordinates used

        
        $.ajax({

            //Grab all the json data. Removed this because it is a lot of code
                        var point;  
                        var symbol = new PictureMarkerSymbol(
                        {
                           //symbol info
                        });
                        
                        var graphic; //initialize graphic variable. This is what will be added to the graphic layer
                        
                        var checkbox = //corresponds to a toolbar check box
                         '<input id="p_check_m_' 
                         + item.mls
                         + //more gibberish to make the checkbox

                        var content = '<div><b>' //the body of the info window
                        + item.SaleLease 
                        + '</b></div><div>Listing: ' 
                        + item.T_ListBrokerage 
                        + ' / ' 
                        + item.T_ListAgent 
                        + buying 
                        + '</div>'
                        + '<div>List Date:' + item.T_ListDate + '</div>'
                        + '<div>List Price:' + item.price + '</div>'
                        + '<div>' + addCommas(area) + '</div>';
                        
                        point = new esri.geometry.Point(item.lon, item.lat); //point for graphic
                        
                        coordinateCheck = item.lat; 
                         //I just use latitude since I do not know how to check an array of arrays
                        
                        graphic = new esri.Graphic(point, symbol); //create the graphic
                        
                        graphic.setAttributes({'title': checkbox, 'desc': content}); //set its attributes
                        
                        if (usedCoordinates.indexOf(coordinateCheck) > -1){ 
                              //check to see if item.lat has already been used
                            graphicsLayer2.add(graphic);
                            console.log('added to layer 2');
                        } else {
                            graphicsLayer.add(graphic);
                            usedCoordinates.push(coordinateCheck);
                            console.log('added to layer 1 ' + usedCoordinates);
                        }
                    });    
                    /*dojo.forEach(graphicsLayer.graphics, function(relate){
                        var u;
                    });*/
                    updateContainer();

Re: Javascript api, info bubbles for stacked graphics

ReneRubalcava — Wed, 16 Jul 2014 18:00:41 GMT

I'm almost out the door, so can't test at the moment, but if you remove the template you set in the constructors for your GraphicsLayers and use the map.infoWindow methods to manually populate the infoWindow, I think you'll get the desired behavior. The infoWindow templates on the graphicslayer would override the manual method and since they are not linked they won't do the toggle via next feature you are looking for. It will probably just the Popup for the topmost feature of the overlapping layers.

Depending on how much control you need over when the popup is shown and you really need to keep them in separate layers you could adjust the workflow slightly.

No template for GraphicsLayers
Listen for click event of map
Get graphics from multiple graphicslayers that intersect click point
Dynamically generate the content and add templates to graphics
Use map.infoWindow methods to add features to Popup
Display Popup

Unless the graphics are on the same layer, I don't think you could automate it much easier.

Here is a sample that uses the map.infoWindow.setFeatures method similar to how I was trying to describe it

Feature layer with popup | ArcGIS API for JavaScript‌

Re: Javascript api, info bubbles for stacked graphics

alexlambson — Wed, 16 Jul 2014 18:41:02 GMT

Thanks for your help so far. I added a new function, but it does not work. If you get the time later, then perhaps you can tell me why it does not work. Should I just disable the template?

                        //replace the if/else from the first post
                        point = new esri.geometry.Point(item.lon, item.lat);
                        
                        graphic = new esri.Graphic(point, symbol);
                        
                        graphic.setAttributes({'title': checkbox, 'desc': content});
                        
                        coordinateCheck = [item.lon, item.lat, graphic];
                        
                        graphicsLayer.add(graphic);
                        if(checkCoordinatesAndLink(coordinateCheck, usedCoordinates)){
                            usedCoordinates.push(coordinateCheck);
                        }

//function somewhere else

function checkCoordinatesAndLink(graphicIn, listOfUsedCoordinates){
        var array = listOfUsedCoordinates; //easier to type
        var graphicLon = graphicIn[0]; //get longitude of the graphic we are checking
        var graphicLat = graphicIn[1];
        console.log(graphicLon + ' ' + graphicLat + ' ' + array);
        for(i=0; i < array.length; i++){ //loop through already placed graphics
            usedLon = array[0]; //get the longitude of already placed graphics
            usedLat = array[1];
            console.log("looping " + i);
            if(usedLon == graphicLon && usedLat == graphicLat){
                map.infoWindow.setFeatures([graphicIn[2], array[2]]);
                console.log('linked');
                return false; //do not add this coordinate to the list of used ones
            }
        }
        return true; //add this praphic to the list of used ones
    }