How to animate a map: territorial expansion

Prepare the map

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   Step 1: Choose your source

   You need an outline of the land and the regions that will change hands. For modern borders, Natural Earth publishes free, public domain map data at several levels of detail. For historical borders, use a reliable historical atlas as reference and trace the regions yourself, since historical borders are often approximate or disputed.

   Don't screenshot a map from another video or website and paint over it. Apart from the copyright problem, you'll end up with blurry, uneditable shapes.

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   Step 2: Draw it as vectors, one region per shape

   Trace or import the map in a vector editor such as Adobe Illustrator or the free Inkscape. Make every region that will change colour a separate closed shape, and name it. Where two regions meet, make sure their edges line up exactly so no gaps or overlaps appear when they fill.

   Simplify the coastline for your zoom level. A map viewed as a whole continent doesn't need every fjord, and fewer points make the file lighter and easier to animate.

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   Step 3: Split it into layers

   Organise the map from bottom to top: water, land, the regions that change, border lines, then labels and icons. Keep borders on their own layer above the fills. That way the fills can change underneath while the borders stay crisp.

Animate the expansion

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   Step 4: Import the map into your animation program

   Moho and Adobe Animate can both import vector artwork from Illustrator, keeping shapes editable. Check that the regions arrive as separate shapes and that their colours survived. Then lock the water, land and border layers so you don't move them by accident.

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   Step 5: Fill regions one at a time

   The simplest expansion: each region fades or snaps from its old colour to the conqueror's colour. Give every region a short transition, about 6 to 12 frames, and stagger them so the expansion has a clear direction instead of everything changing at once.

   Use flat colours rather than full flags for regions. A whole empire in flag stripes is hard to read; a single strong colour is instant. Save the flag for the countryball standing on top.

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   Step 6: Grow a front with a mask

   For a more cinematic look, reveal the new colour with a mask that grows across the region, like an advancing front. Draw the conqueror's colour as one big shape on top of the map, then animate a mask shape that expands from the old border. Both Moho and Adobe Animate can animate mask shapes.

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   Step 7: Add context: dates, arrows and a countryball

   Viewers need to know when and why. A year counter in a corner, arrows for army movements and a short label for important events turn a colourful animation into an explanation. Put the countryball for the expanding country on the map and let it hop to each new region as it's claimed.

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   Step 8: Move the camera

   Start wide so viewers see the whole region, then push in on the area that changes, and pull back out to show the result. Keep camera moves slow and eased. A shaky or fast camera on a detailed map is hard to watch.

Accuracy and sensitivity

Borders are political. Many are disputed today, and historical borders are often uncertain. Say which year your map shows, use the sources you trust most, and mention in the description where borders are approximate. Viewers are far more forgiving of a clearly labelled simplification than of a confident mistake.

Practice exercise

Where to go next

Maps get much easier when your flags and characters are already sorted. See animating flags for complex flags, and making countryball videos for turning a map shot into a full history video.