JSAPI 4.2: SimpleRenderer mixing up colors. What's up with that?

DirkVandervoort — Thu, 19 Jan 2017 16:37:11 GMT

I create a simple renderer with an extrusion and assign it to a feature layer:

var symbol = new PolygonSymbol3D({
   symbolLayers: [new ExtrudeSymbol3DLayer({
      size: 50000, // meters in height extruded
   })]
});

var renderer = new SimpleRenderer({
   symbol: symbol,
   label: "Tract by ROW Acquisition Status",
   visualVariables: [{
      type: "color",
      field: "Acquisition_Status",
      stops: [
         {
            value: 'Not Acquired',
            color: "green", // DISPLAYS AS ***RED*** IN THE WEB SCENE
            label: "Not Acquired"
         },{
            value: 'Acquired',
            color: "red", // DISPLAYS AS ***GREEN*** IN THE WEB SCENE
            label: "Acquired"
         }
      ]}
   ]
});

Then when I view the results in a scene the colors are reversed; i.e., "Acquired" is green and "Not Acquired" is red, even though the code told the renderer to have "Acquired" to be red and "Not Acquired" to be green. WUWT?

Re: JSAPI 4.2: SimpleRenderer mixing up colors. What's up with that?

RalucaNicola1 — Thu, 19 Jan 2017 17:12:04 GMT

Hi Dirk,

Don't use SimpleRenderer with visualVariables in this case. Visual variables are meant to map continuous numeric data. Instead what you need is a UniqueValueRenderer. This works well when you have categories.

Here is a sample that is quite similar to your case: Extrude building footprints based on real world heights | ArcGIS API for JavaScript 4.2

topic JSAPI 4.2: SimpleRenderer mixing up colors. What's up with that? in ArcGIS JavaScript Maps SDK Questions

JSAPI 4.2: SimpleRenderer mixing up colors. What's up with that?

Re: JSAPI 4.2: SimpleRenderer mixing up colors. What's up with that?