Pass dynamic value to Feature Layer renderer

RyanRundle — Wed, 25 Aug 2021 17:42:48 GMT

Hi. A little newer to ArcGIS. I'm trying to render a simple marker via a feature layer renderer but pass a dynamic angle value. We have a number of different markers based on certain field values so we're using the `unique-value` type.

Layer looks like this:

layerRef.current = new FeatureLayer({ title : stuff.. id : stuff.. source : graphics objectIdField : stuff.. outFields : stuff.. fields : stuff.. renderer : getHistoryByAssetRenderer(), popupTemplate : stuff.. });

Here's a dumb version of the array of the source objects:

const graphics = [ { eventType : 'direction', angle : 67 }, { eventType : 'turning' angle. : 234 } ]

then the renderer looks like so:

const getHistoryByAssetRenderer = () => ({ type : 'unique-value', field : 'eventType', uniqueValueInfos : [ ..., { value : 'direction', symbol : { type : 'simple-marker', style : 'path', path : EVENT_TRIANGLE_PATH, angle : HOW DO I GET PASS THE ANGLE HERE??? size. : 10 color : fillColor, outline : { color : outlineColor, width } } ] })

So of course the renderer handles finding the `eventType` field and rendering the marker based on the that field, but i'm not sure how to pass the angle to the symbol so the marker can be rotated.

Some notes on what I've tried:

Not sure if there is a way to use Roatation but it seems to balk when the renderer type is `unique-value`

Re: Pass dynamic value to Feature Layer renderer

JohnGrayson — Thu, 26 Aug 2021 15:21:42 GMT

Maybe try using a Rotation VisualVariable to do this task? If it doesn't work for you, having a simple codepen (or similar) so we can see the code and experience the issue really helps.

Re: Pass dynamic value to Feature Layer renderer

RyanRundle — Wed, 01 Sep 2021 22:09:34 GMT

Ah thanks John. It worked once I added `angle` to the fields list that gets passed to the renderer (which I marked above as 'stuff'). Then added this to the renderer:

visualVariables : [{ type : 'rotation', field : 'angle', rotationType : 'geographic' }]

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Pass dynamic value to Feature Layer renderer

Re: Pass dynamic value to Feature Layer renderer

Re: Pass dynamic value to Feature Layer renderer