Pass a polygon to a geoprocessor, datatypes issue?

JamesHone1 — Sun, 12 Dec 2021 10:28:00 GMT

I am trying to call a geoprocessor from WAB that will clip some tiffs and supply them to the user.

I am passing in a list of boolean and a polygon to clip to.

I am getting the polygon from the dawbox dijit as shown below.

postCreate: function() {
			this.inherited(arguments);
			
			this.drawBox.setMap(this.map);
			this.drawBox.showClear = true;
			this.drawBox.keepOneGraphic = true;
			this.own(on(this.drawBox, 'DrawEnd', lang.hitch(this, this._onDrawComplete)));
    },
    

    _onDrawComplete: function(graphic) {
      var geometry = graphic.geometry;‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

I then attempted to pass this directly into the geoprocessor which resulted in an error, apparently it needed to be a GPFeatureSet. I got around this error by creating a featureset with my geom in, and passing that to the geoprocessor.

var features = [];
      features.push(geometry);

      var featureSet = new FeatureSet();
      featureSet.features = features;


      // setup gp stuff and params
      var params = { "BoolList":boollist, "poly": featureSet };
      var gp = new Geoprocessor('https://arcgispreprodent.admiralty.co.uk/server/rest/services/Jim/BathyClip/GPServer/BathyClip')‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

The problem I appear to have now is that poly is always an empty string when I get to the geoprocessor.

If I log poly before I execute the GP it has values, but if I log poly from within the GP its an empty string, the boolean list is passing fine but the poly param is empty.

What do I need to do to pass a polygon to my geoprocessor?

Re: Pass a polygon to a geoprocessor, datatypes issue?

JamesHone1 — Sun, 12 Dec 2021 10:28:02 GMT

So it seems my error was originated when I extracted the geometry from graphic.

    _onDrawComplete: function(graphic) {
      var geometry = graphic.geometry;‍‍

The FeatureSet expects the entire graphic to be passed in rather than just the geom.

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Pass a polygon to a geoprocessor, datatypes issue?

Re: Pass a polygon to a geoprocessor, datatypes issue?