Spatial reference for Geoprocessing Task

Question

I am using the JS 4.0 API and am trying to get the return result from an asynchronous service, but I keep getting the error:

TypeError: d.spatialReference is undefined

on the result.

When I created the GP task I set the output spatial reference to that of the base map ...

gp = new Geoprocessor(testURL);

gp.outSpatialReference = {

wkid: 102100

};

However, when I try to get the result image, I get the error stating that spatialReference is undefined.  I am getting the result as follows:

var resultImage = gp.getResultImageLayer(result.jobId, "myImage", imageParams);

Is there any way to force or set the spatialReference on the return result image?  Maybe in the "imageParams"?  But the docs on imageParameters don't really seem to say that I can set the spatialReference.  Is it possible?

Thanks,

Charlie

KristianEkenes · Answer

Thanks for the feedback Charlie. I think it is apparent that our Geoprocessing documentation isn't complete at the moment. We will make sure to revisit it, including with more snippets so it is more clear.

DougCollins · Answer

I tried setting the imageSpatialReference property but it gave another error this time:

"Error: [accessor] cannot access unknown property 'layerDefinitions' on instance of esri.layers.support.ImageParameters."

So I also tried setting layerDefinitions as well, but I still got the same 'layerDefinitions' error.

Maybe I will wait until the 4.0 API is more complete.   I hope that they add a bit more documentation to the geoprocessing section as well.  Maybe more example snippets would help.

Thanks for your help.

Charlie

KristianEkenes · Answer

Ah. I see now. Yeah. I don't think all of the Geoprocessor code is complete yet, but you can try setting the spatial reference on the ImageParameters using the imageSpatialReference property. This isn't documented in 4.0, but it may (or may not) work.

Another thing to note is that SceneView in global mode does not support projected coordinate systems. However, SceneView in local mode does. So if you switch to a local viewingMode and add the image to the view, then you may be able to see it then. Keep in mind that the SceneView must be constructed with that SR - 102008 (NAD_1983_Albers). You can't change the spatial reference of the view after it's been created (yet anyway).

Try those ways and let me know if either of them work out for you.