FOLLOW THE
RESEARCH TRAIL.
Primary documentation for the specific factual claims in the Journal, with a clear separation between source-supported descriptions and illustrative workflows.
How to read the references
Each article contains exactly one editorial outbound source link. It supports the specific discussion next to it, not every possible use of the topic. Practical checklists and invented examples are presented as editorial guidance. No search-volume figures, performance benchmarks, partnerships, or user testimonials are claimed.
Sources were consulted for this edition on September 13, 2026. External product interfaces and documentation can change. A citation is not an endorsement, affiliation, or guarantee that a third-party service will remain available.
OpenStreetMap project overview
Supports the description of community mapping and local knowledge. The surrounding map-selection workflow is editorial guidance.
QGIS general tools documentation
Supports the distinction between Cartesian and ellipsoidal measurements in QGIS. Worked arithmetic examples are independently calculated.
OSRM API documentation
Supports the stated route-service objective and the role of a configured transport profile. This site does not connect to OSRM.
The mapKurator research paper
Provides a concrete example of extracting and linking historical map text. Its scope is not treated as proof of unrelated AI capabilities.
Apple iPhone offline maps guide
Supports the description of downloading and managing map areas in Apple Maps. Apple’s product is separate from this website.
Android location permissions documentation
Supports distinctions in application location access. Readers should check the actual settings on their device and version.
USGS older topographic maps guide
Supports the availability of scanned historical topographic maps and identifies official discovery routes.
RFC 7946: the GeoJSON format
Supports the description of GeoJSON geometry, properties, geographic coordinate order, and WGS 84 decimal-degree coordinates.
QGIS coordinate reference systems introduction
Supports the discussion of projection tradeoffs and choosing a coordinate framework for a map’s purpose.
OR-Tools routing with time windows
Supports the example of modeling travel times, visiting windows, vehicles, and a depot as structured routing inputs.
Examples and corrections
The interactive map lab uses a fictional planar grid. Its distances are sums of straight segments; its areas use the polygon shoelace formula. All example values are local calculations rather than facts about actual places. For a correction, send the relevant page and supporting context to [email protected].