{'field': 'Lat', 'type': 'quantitative'}
{'field': 'Long', 'type': 'quantitative'}
{'field': 'region', 'type': 'nominal'}
{'field': 'USMapID', 'type': 'nominal'}
{'field': 'death', 'type': 'quantitative'}
{'field': 'confirmed', 'type': 'quantitative'}
{'field': 'date', 'type': 'temporal'}
Generate 22 vis, time last 1.700 s.

Cost:61.110

Cost:61.110

Cost:61.180

Cost:61.180

Cost:61.180

Cost:61.180

Cost:61.180

Cost:61.180

Cost:61.180

Cost:61.180

Cost:61.227

Cost:61.227

Cost:61.227

Cost:61.227

Cost:61.390

Cost:61.390

Cost:61.390

Cost:61.390

Cost:61.390

Cost:61.390

Cost:127.260

Cost:127.330