Working from geometry to feature to map, can't display polygon feature

JillRKelly

I've created a valid polygon geometry.

CTcorners = { 'rings' : [[[-72.0,42.0],[-72.1,42.0],[-72.1,42.1],[-72.0,42.1],[-72.0,42.0]]]} # clockwise

CTpolygeom = arcgis.geometry.Polygon(CTcorners)

I converted it to a feature.

CTpoly = arcgis.features.Feature(CTpolygeom)

That step seems to work properly, but when I try to add it to the map,

map2 = gis.map('Connecticut') # focus on CT                     
map2.basemap = 'topo'
map2.add_layer(CTpoly)
map2

it throws the error:

TypeError: argument of type 'Feature' is not iterable

on the add_layer line.  Do I need to make a layer of it for display maybe?

ps -- is 'rings' a reserved term in this context or arbitrary?  Thanks.

SupratimBanik

A Feature is not a layer and you wont be able to use map.add_layer() to draw the feature in the map widget. You can convert the feature to a featureset and use map.draw() to draw it:

   map.draw(FeatureSet([CTpoly]))

import_data() results in a FeatureCollection which is a layer that can be added to a map widget.