topic Re: Labels all grouped together in ArcGIS JavaScript Maps SDK Questions

Labels all grouped together

DiegoMonge_Chinchilla — Mon, 21 Oct 2019 18:23:16 GMT

Hello everyone

I'm trying to label an ImageLayer but all labels grouped all together:

I'm labeling with this:

labelingInfo: [

{

labelExpression: '[Contour] CONCAT "mm"',

labelPlacement: "always-horizontal",

minScale: 2000000,

maxScale: 1000

}

]

}

]

I would like to see only the label of the feature or features that I'm watching. Thanks for any help that you can give me!

Re: Labels all grouped together

Noah-Sager — Mon, 21 Oct 2019 18:49:53 GMT

Hi Diego, what version of the API are you using, and what specific layer are you labeling? I'm not 100% sure what you mean by "ImageLayer".

Re: Labels all grouped together

DiegoMonge_Chinchilla — Mon, 21 Oct 2019 19:42:34 GMT

Hi Noah

Sorry I forgot to tell that I´m using version 4.13.

What I meant with "ImageLayer" is for a MapImageLayer

I using this layer:

const layer = new MapImageLayer({

url: "https://sig.icafe.cr/server/rest/services/pronosticos_image/MapServer",

sublayers: [

{

id: 0,

//popupTemplate: popup,

renderer: renderer,

opacity: 0.6,

labelingInfo: [

{

labelExpression: '[Contour] CONCAT "mm"',

labelPlacement: "always-horizontal",

minScale: 2000000,

maxScale: 1000

}

]

}

]

});

Re: Labels all grouped together

Noah-Sager — Mon, 21 Oct 2019 21:17:11 GMT

Unfortunately, I think the issue you are seeing is caused by the data. Each feature (polygon) is labeled as close to the centroid as possible. So if there are no outlines for the features, it can appear that there is groupings when really there aren't.

Simplified sample using FeatureLayer instead of MapImageLayer

https://codepen.io/noash/pen/abbpwjN

Re: Labels all grouped together

DiegoMonge_Chinchilla — Tue, 22 Oct 2019 14:24:36 GMT

Noah thanks a lot, I took it from NOAA and uploaded to the server with an arcpy script, seems that now they are making an overlapping of features :S, I didn't realice about that change, now I have to solve that, thank you very much!