nafem

If I use the following data set, I would expect two circles with an overlap in the middle with one item in: [ {"set":["A"],"name":"node_1"}, {"set":["A"],"name":"node_3"}, {"set":["A"],"name":"node_4"}, {"set":["B"],"name":"node_2"}, {"set":["A","B"],"name":"node_6"}, ] But...