definitionExpression on a raster ?

JUBJUB — Sun, 12 Dec 2021 16:06:23 GMT

I have a MapImageLayer who contains both featureLayer and raster (referenced .tif).

I am able to apply a "definitionExpression" on the feature layer with an SQL expression but not on the raster.


var layer = new MapImageLayer({
   url: "https://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer",
   sublayers: [

      {
         id: 1, // for example this one is a raster
         definitionExpression: "Pixel > 6" // Which SQL where clause here ????? Pixel ? PixelValue ?
      },
      {
         id: 0, // for example this one is a FeatureLayer
         definitionExpression: "pop2000 > 100000" // Works on a FeatureLayer !!!!!
      }
   ]
});

Is it possible to query a raster on a MapImageLayer ? Or do I have to query an ImageLayer ?

My goal is then to apply a client slider on the raster like in this example : https://developers.arcgis.com/javascript/3/sandbox/sandbox.html?sample=layers_raster

Is it possible to apply a slider on a raster contents in a MapImageLayer ? Or maybe this slider only works on ImageryLayer ?

Thanks

Re: definitionExpression on a raster ?

UndralBatsukh — Thu, 26 Sep 2019 15:17:12 GMT

Hi there,

Yep it only works with ImageLayer and the service has to be ImageService.

-Undral

Re: definitionExpression on a raster ?

JUBJUB — Thu, 26 Sep 2019 15:43:49 GMT

Thanks Undral for your answer

topic definitionExpression on a raster ? in ArcGIS JavaScript Maps SDK Questions

definitionExpression on a raster ?

Re: definitionExpression on a raster ?

Re: definitionExpression on a raster ?