Vintage

Two old maps, drawn on live ones

Old maps were made to do a job. A 1930s travel poster sold a trip with a few flat inks and a sunburst. A fire-insurance atlas hand-coloured every building so an underwriter could judge the risk at a glance. Here are both, drawn on the real Mappedin demo maps rather than as pictures of them: you can still pan, zoom and change floors.

Visit the Departures Hall

The Mappedin demo airport as a 1930s travel poster. Every room is raised by its size and printed in one of four inks: the biggest rooms are orange and tallest, then teal, then gold, and the smallest stay cream. Behind the building is a sunburst, and the sun casts real shadows across the floor.

Drag the sun along its arc and the shadows swing round and stretch toward evening; walls facing away from the sun go navy. The chips above the poster switch between three halls, and each one prints its own headline.

How far is the door?

The Mappedin demo hospital as a plate from a fire-insurance atlas. Each room is coloured by the walk from its middle to the nearest of the hospital's 12 marked exits, using stairs and doors but never the lifts. Yellow is close, then orange, then pink; past the limit, a room is hatched in red.

With a 90 m limit, 219 of the 596 rooms are past it, 36% of the floor area. The longest walk is 220 m, on Level 2: about 2.8 minutes at a steady 1.3 m/s. Level 4 is the worst floor, with 75% of its area past the limit, and Level 3 has 47%. On Level 1 every room is within reach: the longest walk there is 87 m.

Drag the slider to set your own limit and watch the hatching spread or shrink. Tap a room on the map, or a row in the list of longest walks, to draw its way out in red.

How it's made

Live maps, restyled. Both are the Mappedin SDK's own maps with new colours, heights and walls, plus layers of our own drawn on top in three.js: the poster's shadows and the atlas's washes and hatching. Floors, zoom and taps are the map's.

The poster is about looks. Its heights and inks come from room size only, ranked across the whole airport. They say nothing about what a room is for or how tall it really is.

The atlas is a model, not a fire-code review. Each walk follows the demo map's walking network from the middle of a room to the nearest marked exit, the shortest way, with no lifts. Real egress rules measure differently, count other exits and depend on the building's use. The 90 m limit is an illustrative number you can change, not a value from any code. Rooms under 9 m² are coloured but left out of the ranked list.