Day 30: Straight lines between German airports in QGIS. Network structure without route algorithms. #100DayMapChallenge.
Day 29: Romania’s Population as a Mosaic
Day 29: Romania population as a Gridviz mosaic. Density without administrative borders. Week 5 begins. #100DayMapChallenge.
Day 28: EU Bilateral Migration Flows 2020
Day 28: EU bilateral migration 2020 as a chord diagram. Bidirectional, asymmetric flows. #100DayMapChallenge.
Day 27: First Experiment with Star Maps
Day 27: First star globe from HYG (mag < 8). D3 + Versor. Seed for the Day 57 IIB longlist. #100DayMapChallenge.
Day 26: Breaking Down a Nation – SIRUTA Sunburst
Day 26: Romania administrative hierarchy as a zoomable sunburst (SIRUTA). Area = population. #100DayMapChallenge.
Day 25: COVID Outbreaks – Map and Circle Pack
Day 25: Where are the outbreaks? Map + pack views on the same Romania COVID dataset. Series finale. #100DayMapChallenge.
Day 24: COVID Timeline – Bubble Chart and Arc Diagram
Day 24: Same COVID cases, arranged by confirmation day. Velocity and lag that networks hide. #100DayMapChallenge.
Day 23: COVID Full Network – Community Transmission
Day 23: Full COVID network for Romania. Every case, every link. Transmission beyond county borders. #100DayMapChallenge.
Day 22: COVID Network by County – Relationships and Geography
Day 22: Who infected whom, and where? County-grouped COVID network for Romania. #100DayMapChallenge.
Day 21: COVID-19 Daily Cases in Romania – Case Number One
Day 21: Romania case one, Feb 26 2020. Interactive timeline from geo-spatial.org open data. Start of the COVID series. #100DayMapChallenge.









