topic Re: Re: Legend with Class Break Renderer normalization in Web AppBuilder Custom Widgets Questions

Re: Legend with Class Break Renderer normalization

RobertScheitlin__GISP — Sun, 12 Dec 2021 10:17:16 GMT

David,

See if this helps:

...
        classDef.breakCount = 5;
        classDef.classificationMethod = "quantile";
        classDef.type = "classBreaksDef";
        if(this.selectNorm.get('value')){
          classDef.normalizationType = "field"
          classDef.normalizationField = this.selectNorm.get('value');
        }
...‍‍‍‍‍‍‍‍‍

Re: Legend with Class Break Renderer normalization

DavidTreering2 — Tue, 06 Feb 2018 17:02:47 GMT

Perfect, thank you.

- David Treering, GISP

Re: Legend with Class Break Renderer normalization

RobertScheitlin__GISP — Tue, 06 Feb 2018 17:18:25 GMT

Don’t forget to mark your question as answered.

Re: Legend with Class Break Renderer normalization

DavidTreering2 — Tue, 06 Feb 2018 20:53:36 GMT

I can't figure out why the legend will not refresh until I change the view or navigate.

startup: function() {
this.own(on(this.selectField, "change", lang.hitch(this, this.onFieldChange, this.legendRefresh)));
.......
legendRefresh: function(evt){
this.legend.refresh();
},

I tried to add this.legend.refresh(); to the end of onFieldChange, but it doesn't make sense having to call legend.refresh() right after legend.startup() runs within the createLegend function.

Re: Legend with Class Break Renderer normalization

RobertScheitlin__GISP — Tue, 06 Feb 2018 21:15:05 GMT

David,

Have you tried a layer refresh?

Re: Re: Legend with Class Break Renderer normalization

DavidTreering2 — Tue, 06 Feb 2018 21:57:24 GMT

I have, and the layer does refresh on the map:

this.map.getLayer("tracts").refresh();

But the legend does not refresh.

Re: Legend with Class Break Renderer normalization

RobertScheitlin__GISP — Tue, 06 Feb 2018 22:02:37 GMT

David,

I think you attached the wrong Widget.js. That one you attached is for Google Earth or something.

Re: Legend with Class Break Renderer normalization

DavidTreering2 — Tue, 06 Feb 2018 22:21:53 GMT

I edited that post now with the correct attachments, sorry!

Re: Legend with Class Break Renderer normalization

RobertScheitlin__GISP — Tue, 06 Feb 2018 22:38:31 GMT

David,

Give these changes a try. Basically you where refreshing and trying to recreate the legend before the new renderer was applied.

Re: Legend with Class Break Renderer normalization

DavidTreering2 — Fri, 09 Feb 2018 19:58:02 GMT

Very helpful. It won't let me mark this as the answer, maybe because I branched the discussion from one of your posts? Anyway, if you ever get to Chicago, I need to buy you a drink!

Re: Legend with Class Break Renderer normalization

RobertScheitlin__GISP — Fri, 09 Feb 2018 20:25:22 GMT

No problem. I thought it was strange when I saw my name as the original poster.

Re: Legend with Class Break Renderer normalization

DavidTreering2 — Fri, 09 Feb 2018 22:12:10 GMT

I'm having trouble setting the value of the dropdown fields. Am I in the ballpark?

this.selectField.set("value", selectField.options[2]);

Re: Legend with Class Break Renderer normalization

RobertScheitlin__GISP — Fri, 09 Feb 2018 22:25:00 GMT

David,

this.selectField.set("value", this.selectField.options[2].value);‍