Latest Contributions by QiZhao

Hi Rene, Thanks for your quick reply. Below are the browsers in which I saw the issue: Chrome v67.0.8896.99 64-bit Chrome v66.0.3359.170 64-bit Microsoft Edge v42.17134.1.0 Firefox v61.0.1 Firefox v60.0.2 All the browsers mentioned above are in Windows 10 v1803 x64. Let me know if you need additional info. Thanks. ... View more

It seems that the empty image issue has been fixed in JSAPI v4.8 release. You don't need to workaround it using Arcade expression anymore. Thanks. ... View more

Hi Raluca, It's not mandatory for us to use queryExtent on layer view. To my understanding, query on layer will run on server-side, while query on layer view will run on browser-side. Since all the graphics I need are already shown in browser, I just thought query on layer view may have better performance than query on layer. Thanks. Best, Qi Zhao ... View more

Hi Matt, Thank you for confirming this issue. Yes, I was able to work around it with Arcade expression. When the image url is empty, I just use a placeholder image instead. The bubble will look like below. It looks better than the empty image but not as good as fully hide the image area. Here is the Arcade expression: {   "popupInfo": {     "title": "{Name}",     "fieldInfos": [...],     "expressionInfos": [{       "name": "expr0",       "title": "ImageUrl",       "expression": "IIf(IsEmpty($feature.Thumbnail),'http://hazegazer.org/assets/image/img_not_available.png',$feature.Thumbnail)",       "returnType": "string"     }],     "mediaInfos": [{       "title": "Image",       "type": "image",       "value": {         "sourceURL": "{expression/expr0}",         "linkURL": "{Image}"       }     }]   } }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more

Hi Raluca, Thank you for looking into this. I'm glad to know that this issue is confirmed and will be fixed in the future. We are trying to change the map view to the extent of feature layer graphics that are shown. Using this page as an example: every time when user select a different "Well Type", a query is performed, and only a subset of features will be shown as query result. We want the map view automatically "go to" the result features. We've implemented a workaround queryExtent function: function queryExtent(lyrView) {     var deferred = new Deferred();     lyrView.queryExtent().then(function(result) {         //queryExtent works well for polyline and polygon layers         deferred.resolve(result);           }).catch(function() {         //queryExtent doesn't work for point layers         return lyrView.queryFeatures();           }).then(function(feature) {         //calculate extent by ourselves         var result = { count: 0, extent: null };         if (!feature || !feature.length)             return deferred.resolve(result);         //all features are points         var xMin = features[0].geometry.x,             xMax = xMin,             yMin = features[0].geometry.y,             yMax = yMin;               for (var feature of features) {             var x = feature.geometry.x,                 y = feature.geometry.y;                       if (x < xMin) xMin = x;             if (x > xMax) xMax = x;             if (y < yMin) yMin = y;             if (y > yMax) yMax = y;         }               require(['esri/geometry/Extent'], function(Extent) {             result.count = features.length;             result.extent = new Extent({                 xMin: xMin,                 xMax: xMax,                 yMin: yMin,                 yMax: yMax,                 spatialReference:                     features[0].geometry.spatialReference             });                       deferred.resolve(result);         };     });           return deferred; }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ This function returns the same type of promise with lyrView.queryExtent function: Returns: Type Description Promise<Object> When resolved, returns the extent and count of the features that satisfy the input query. See the object specification table below for details. Property Type Description count Number The number of features that satisfy the input query. extent Extent The extent of the features that satisfy the query. ... View more