topic Re: StreamLayer 4.29 | Features have black blinking square in ArcGIS JavaScript Maps SDK Questions

StreamLayer 4.29 | Features have black blinking square

orahlagi — Wed, 28 Feb 2024 10:13:27 GMT

Hey, I just upgraded from 4.28.10 to 4.29 and noticed the features are blinking non stop, it's only stop on a very high zoom level.

I'm using sendMessageToClient method on StreamLayer.

I'm not sure how I can give an example to reproduce it, I didn't change anything in my code, I establish a layer with the following config:

new StreamLayer({ idField: 'some-id-field', fields: some fields as FieldProperties[], timeInfo: { trackIdField: 'TRACKID' }, geometryType: 'point', objectIdField: 'something' })

Then I'm adding features as a batch:

myStreamLayer.sendMessageToClient({ type: 'features', features: [{attributes: {someAttributes}, geometry:{x:someCoordinate, y:someCoordinate}}] })

Hope you can see the attached video.

(view in My Videos)

Re: StreamLayer 4.29 | Features have black blinking square

UndralBatsukh — Wed, 28 Feb 2024 18:37:49 GMT

Hi there

Can you please paste the renderer code (especially the symbol part) here? Thanks

Re: StreamLayer 4.29 | Features have black blinking square

orahlagi — Tue, 05 Mar 2024 08:24:03 GMT

@UndralBatsukh Thank you.

Here you go (the uniquevalueinfo and the expression has some logic that I removed in the code example):

{ visualVariables: [ { type: 'rotation', field: 'angle', rotationType: 'geographic', }, ] valueExpression: 'someExpression...', uniqueValueInfos: [ value: value, symbol: new PictureMarkerSymbol({ height: someHeight, width: someWidth, url: url, }), ], }

Re: StreamLayer 4.29 | Features have black blinking square

LaurenBoyd — Wed, 06 Mar 2024 17:18:43 GMT

Hi @orahlagi -

This issue should be fixed for 4.29. Could you please check that this issue is fixed on your end with your application and let us know ASAP if it's still occurring for you? Thanks!

Re: StreamLayer 4.29 | Features have black blinking square

BenjaminLecuona — Thu, 11 Jul 2024 14:53:17 GMT

Hi,

I am facing the same issue with 4.30 (from 4.30.1 to 4.30.8). Will it be fixed?

Thank you.

Re: StreamLayer 4.29 | Features have black blinking square

UndralBatsukh — Thu, 11 Jul 2024 19:43:21 GMT

Hi there,

Can you please provide a reproducible case? If it is not possible then can you please provide the code for the renderer? Thanks

Re: StreamLayer 4.29 | Features have black blinking square

BenjaminLecuona — Mon, 22 Jul 2024 07:42:40 GMT

Sorry I don't have any reproducible case. I am facing the issue even with a basic renderer. Blinking seems to occure on each StreamLayer update/rerender, because it depends on updateInterval property.

I was already facing this issue on some 4.28.x versions but not all of them.

Re: StreamLayer 4.29 | Features have black blinking square

UndralBatsukh — Mon, 22 Jul 2024 16:33:38 GMT

I am not able to reproduce this issue. It would be very useful if you can give some details on when and how it is flickering. You can also reach out the Esri support to work on a reproducible case. Thanks

Re: StreamLayer 4.29 | Features have black blinking square

BenjaminLecuona — Fri, 09 Aug 2024 09:41:35 GMT

My issue has been resolved upgrading Angular to last version.