Cannot apply UniqueValueRenderer to ImageryLayer at ArcGIS JavaScript API 4.18+

RyanSutcliffe

At 4.18, we are no longer able to successfully render our ImageryLayers with a UniqueValueRenderer. Here is the gist of what we used to do successfully at 4.17 and earlier:

 

 

 

// Raster functions
  var extractRF = new RasterFunction({
    functionName: "ExtractBand",
    functionArguments: {
      bandIds: [0]   // lets say we want 1st band
    },
    variableName: "Raster"
  });

  var remapRF = new RasterFunction({
    functionName: "Remap",
    functionArguments: {
      inputRanges: [0, 255], // get all vals
      outputValues: [1], //set them all to 1
      raster: extractRF,
      AllowUnmatched: true
    }
  });

  const newRaster = new ImageryLayer({
    url: [my raster url here],
    renderingRule: remapRF,
    renderer: new UniqueValueRenderer({ 
      type: "unique-value",
      uniqueValueInfos: [{
        value: 1,   // take values of 1 and symbolize them
        label: " ",
        symbol: {
          type: "simple-fill",
          color: "black"
        }
      }]
    })
  });

 

 

 

But this no longer works at 4.18 and 4.19. Here is a codepen showing the problem.

 

A warning in the console says:

[esri.layers.mixins.ArcGISImageService] ArcGISImageService Switching to the default renderer. Renderer applied is not valid for this Imagery Layer

But I don't see anything in 4.18 indicating any breaking changes and docs still say UniqueValuesRenderer works fine on ImageryLayers. Anyone know what the fix might be?

UndralBatsukh

Hi there, 

We are able to reproduce the issue you described. Thank you very much for the reproducible case. I will update you as soon as we install a fix for this. 

In meantime, if it is acceptable you can use the `Colormap` raster function as a ImageryLayer.renderingRule for a workaround. This sdk sample shows how to use it. 

 

Thanks,

-Undral