import Pandas DataFrame with Polyline field using Python API

Question

Been playing around with the Python API.  I'm using a Pandas dataframe, to which I've added a column that has a Polyline (arcgis.geometry.Polyline class) as it's attribute.  I would like to add this dataframe to a map, but the import_data method only seems to work on dataframes with x,y or lat,long column names, and I couldn't find a way to specify the Shape field when invoking the method.  Is this possible?

My code, in general, looks like:

fc_lines =  gis.content.import_data(df_lines)

map1 = gis.map()
map1.add_layer(fc_lines)

df_lines is a dataframe with a column, named "Lines" that contains an arcgis.geometry.Polyline object.  At least I think it contains an object - when I print out the dataframe, that column has something like

{"paths": [[32.08138, 40.17111], [35.182777, 39.4016666]], "spatialReference": {"wkid": 4326}}

which is the string representation of the object. But if it's actually stored as a string, that's a different matter (and maybe why it won't work).

Is there a way to do what I want using the Python API, or should I somehow export the dataframe to a feature class, if that's even possible.

Jay_Gregory · Answer

Thanks - so it seems like Esri still has some work to do on this API....

JillRKelly · Answer

Much stripped down, this works:

my_line_geom = {'paths' : [[[-78.8,38.8],[-78.8,38.2]]]}
my_line = arcgis.geometry.Polyline(my_line_geom)
my_line_feature = arcgis.features.Feature(my_line)
my_line_feature_set = arcgis.features.FeatureSet([my_line_feature])
map1 = gis.map('Orkney Springs')
map1.draw(my_line_feature_set)
map1

I have not been able to draw both features of a two-feature feature set.  Only the second one shows up.  Nor have I had any success setting the symbology.

Jay_Gregory · Answer

Even though I mixed up x and y, it still won't work