SANJIESAN LORE / Planet-scale maps
Check what meets across the edge of a world map
A rectangle has edges; a spherical world does not end at the paper’s border. USGS explains world projections as flat representations of a curved surface. When an original planet map is intended to wrap around, choose where its seam falls and inspect the relationships that cross that seam before adding distant regions to the story.
State whether the map is meant to wrap
Identify the map’s intended global structure. If it is only a regional illustration, do not imply that its left and right edges join. If it represents a chosen full-world arrangement, make a rough wrap or another suitable globe reference using your own artwork. An arbitrary hand-drawn rectangle is not automatically a valid input for every projection tool, so keep the exercise’s assumptions explicit.
Choose one crossing relationship
Pick an island chain, a climate sketch or a route that approaches the chosen seam. Inspect whether its counterpart continues on the other edge as intended. Do not invent exact distances from the flat page while doing this. The immediate question is connection and continuity. If a landmass looks cut in two, decide whether moving the map’s centre would make the reader’s task clearer without changing the world.
Read the prose near the imagined edge
Look for phrases such as the far eastern end of the world. Decide whether a character uses them from a local viewpoint or the narrator claims a literal planetary limit. A familiar saying can remain meaningful without being a geometric fact. Keep local maps and world references aligned where the connection affects the plot. The page edge should serve the publication, not quietly create a new wall around a spherical setting.