simongsk/navigating-map-of-denmark-under-changing-sea-levels

How simongsk/navigating-map-of-denmark-under-changing-sea-levels works

This is a JavaFX map application for exploring OpenStreetMap data in Denmark, simulating rising sea levels, and finding routes that avoid submerged roads. The main workflow is choosing map files, parsing OSM and height-curve data, then viewing and interacting with the rendered map; route selection invokes shortest-path search, and sea-level changes update the simulation and route. The README documents binary caching and the major capabilities; sampled excerpts confirm parts of parsing, rendering, UI interaction, and pathfinding, but not all wiring between subsystems.

Main entry points: AppController.java App controller · OsmData.java OSM elements · OsmParser.java OSM parser · HeightCurveParser.java Height parser

Components 19

Map application

App controller src/main/java/models/ui/AppController.java
Dataset selection src/main/java/models/ui/StartupDialog.java
Input events src/main/java/models/ui/EventHandler.java
Map interface src/main/java/models/ui/UserInterface.java
Loaded map state src/main/java/models/ui/AppData.java

Data ingestion

OSM parser src/main/java/models/parser/OsmParser.java
Height parser src/main/java/models/parser/HeightCurveParser.java
Binary cache I/O src/main/java/models/parser/BinaryReader.java
Binary cache writer src/main/java/models/parser/BinaryWriter.java

Map model and rendering

OSM elements src/main/java/models/parser/OsmData.java
Height curve data src/main/java/models/parser/HeightCurveData.java
Submergence model src/main/java/models/heightcurve/HeightCurve.java
Spatial index src/main/java/models/RTree/Tree.java
Map renderers src/main/java/models/rendering/AbstractRenderer.java
Height renderer src/main/java/models/rendering/HeightCurveRenderer.java

Route finding

A* and Dijkstra src/main/java/models/pathfinding/Pathfinder.java
Road graph builder src/main/java/models/pathfinding/GraphBuilder.java
Route selection state src/main/java/models/pathfinding/PathfindingObject.java

Other components

Map user

Connections 24

Map user → Dataset selection: chooses dataset
Dataset selection → App controller: returns choice
Map user → Map interface: map interaction
App controller → Input events: binds handlers
Input events → App controller: dispatches input
App controller → Map interface: updates view
App controller → OSM parser: loads OSM
App controller → Height parser: loads curves
App controller → Binary cache I/O: reads cache
App controller → Binary cache writer: writes cache
OSM parser → OSM elements: builds elements
OSM parser → Road graph builder: connects road nodes
Height parser → OSM elements: associates nodes
Height parser → Height curve data: builds curve data
Height curve data → Submergence model: contains curves
App controller → Loaded map state: updates state
Loaded map state → Spatial index: indexes elements
App controller → Map renderers: draws map
App controller → Height renderer: sets sea level
Height renderer → Submergence model: renders submersion
App controller → Route selection state: updates route
Route selection state → A* and Dijkstra: requests path
A* and Dijkstra → OSM elements: searches road graph
Road graph builder → OSM elements: adds adjacency

Drawn by GitDiagram on September 27, 2026 from the repository's file tree, README and source files. Read as Markdown ·