Adventures in Ocean Mapping
summary
The demo describes building EMU Explorer App with Esri’s Android SDK to render 52 million points and interactive depth columns; spatial queries use buffered polygons to guarantee at least one match and then pick the nearest water‑column by center distance; a single‑activity approach keeps the map responsive where recreating activities is too expensive; UI black‑box tests exercise flows but expose hard-to-mock SDK classes, prompting a move toward dependency injection and architecture patterns (MVP, fragments, material widgets) that aid testability.
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chapters (11)
- 0:00Outline
- 0:24Oceans
- 3:13Ocean Measurements Clustered into Statistical Groupings
- 9:34App Development Patterns - MVP
- 15:03Mapping Patterns - MVP Architecture
- 20:16Mapping Patterns - Setting up the Map
- 21:35Mapping Patterns. Querying
- 22:59Mapping Patterns - Calculating Distance
- 23:57Map and App Patterns
- 28:20Lessons Learned
- 29:42Resources
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