Latest Contributions by RomanKönig

We are having issues with a single customer machine (until now) when initializing a MapView. The constructor new MapView() throws an error displaying "WebGL not supported. Now we asked the customer to run https://webglreport.com https://webglreport.com/?v=1 displays green whereas  https://webglreport.com/?v=2 displays not supported The customer machine has a Nvidia Quadro NVS 440 graphic card and we asked them to install the newest available drivers installed, but this card does not meet the requirements stated at https://developers.arcgis.com/javascript/latest/guide/system-requirements/index.html  My question is - is there any possibility to check if the system/graphic card is sufficient prior to initializing and running into errors on initializing or using API objects - something like a Javascript API runSupportTest() method or anything like that? ... View more

I can't find any documentation about using WMTS layer with different dimension configurations. And after debugging through the JS API (4.11 in my case) it seems as if dimensions are not supported. WMTSLayer.js and especially wmtsUtils.js parses the capabilitites response and always uses the first <dimension> found if any. So my questions are: Am i right that the dimensions property of WMTS layer capabilities are not supported at the moment? If so, are there any plans on adding support in future releases aof the JS API 4? ... View more

We are sporadically experiencing WebGL rendering issues on one of our development computers in Google Chrome. The whole screen switches to black for a few seconds and after that the Google Chrome (newest version 76) displays an emtpy map. We are using a 2D MapView, layer types are MapImageLayer, FeatureLayer and VectorTileLayer. We are using JS API 4.11. Until now we couldn't find any relation between the displayed layers and the error occuring.  I just wanted to ask if anyone else has experienced something like this and maybe has hints for pinning down the issue. Google Chrome dev tools shows an error: requestAnimationFrame (async) f @ dojo.js:formatted:11387 h @ dojo.js:formatted:11359 l @ dojo.js:formatted:11354 requestAnimationFrame (async) f @ dojo.js:formatted:11387 h @ dojo.js:formatted:11359 l @ dojo.js:formatted:11354 VM1907:103 Uncaught TypeError: Failed to execute 'shaderSource' on 'WebGLRenderingContext': parameter 1 is not of type 'WebGLShader'. at a._loadShader (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:103:238) at a.initialize (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:93:457) at a.bindProgram (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:647:240) at q._drawFill (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:133:20) at q.render (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:127:371) at p._renderFill (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:105:215) at p.renderBucket (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:99:20) at h.doRender (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:73:163) at p.hitTest (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:103:301) at h._hitTest (eval at <anonymous> (eval at <anonymous> (dojo.js:6)), <anonymous>:87:191) a._loadShader @ VM1907:103 a.initialize @ VM1907:93 a.bindProgram @ VM1907:647 q._drawFill @ VM2007:133 q.render @ VM2007:127 p._renderFill @ VM2007:105 p.renderBucket @ VM2007:99 h.doRender @ VM2007:73 p.hitTest @ VM2007:103 h._hitTest @ VM2007:87 After restarting the browser everything works fine again using the same code and layers, so the problem seems not to be directly related to our application. ... View more

Is there any way to influence the blankTile=true|false URL parameter sent by a TileLayer object requesting map tiles? I could not find anything related in the documentation and i see that all our TileLayer objects are sending false. Want to set this to blankTile=true to avoid 404 errors logged into the browser console and webserver logfiles. ... View more

Is there a way to influence the way a FeatureLayer is queried by the JS API (4.11)? For example we use arcgis online hosted feature layers with only a handful or up to < 100 features. Now when we add this FeatureLayer to a MapView there are numerous (in our sample 6) query requests sent to each FeatureLayer on every scale change. I know this was introduced, as in early versions of the js api 4 all features were queried at once, but it would be nice to have an option to force such a behavior. Am i missing something here? ... View more