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Kharita Challenges
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An abstract browser panel contains stacked GIS layers, feature marks and a magnifying lens for inspecting the map.

Ship an inspectable web GIS layer

Budget features, labels and transfer before handing a compact, inspectable public-service review map to a browser.

Web GIS

Steps
4
Each assumes the one before it
Time
~3 h
At the problems' own estimates
XP
1,230
Before hint costs and speed bonuses
Progress
0/4
Start the pathBegins with At which zoom does the dock layer fit in a tile?

What you will be able to do

Plan map feature and label budgets, measure transfer demand, then deliver a compact New York 311 review layer with traceable requests and a measured payload.

The sequence

Each step assumes the one before it.

  1. Up nextAt which zoom does the dock layer fit in a tile?Up nextCount features per XYZ tile across zoom levels to set a vector-tile pipeline's minimum zoom and its per-tile limit honestly.intermediateDifficulty: intermediate190 XP~30 min
  2. 2At which zoom does every capital get its own tile?Count capitals per XYZ tile across zooms to decide where a label layer switches from clustering to one label per city.intermediateDifficulty: intermediate180 XP~25 min
  3. 3Polling a live feed: what does it cost per day?Size the transfer cost of a live layer from the file as served — uncompressed, gzipped, and per day at scale — before choosing between polling and push.advancedDifficulty: advanced280 XP~35 min
  4. 4Deliver a compact sewer review mapProjectExtract a review cohort, make its browser payload inspectable, and measure the transfer budget.advancedDifficulty: advanced580 XP~90 min

Where it leads

Web GIS is examined in the Geospatial systems design review.