Luna Marine Charts

Map Area

The Map Area is the central workspace where all nautical charts, routes, and location overlays are displayed. It supports smooth zooming and panning, highlights chart coverage dynamically, and responds to tool selections from the sidebar. When GPS is active, the vessel’s position and heading appear directly on the map. Visual styling adapts to the selected theme, base map, and chart layer configuration.

Sidebar

The Sidebar provides structured access to the app’s major features, including chart management, route planning, display preferences, and user settings. It can be collapsed to maximize map visibility or expanded to reveal detailed controls and tools.

Map Tools

Map Tools are interactive utilities that modify how you explore the map, inspect charts, or plan navigation. Selecting a tool updates the Map Area with relevant controls and overlays.

Query: Search and Inspect Charts

The Query tool lets you inspect chart features. You can tap features on the map to inspect details.

Route: Plan and Measure Routes

The Route tool allows you to create and edit navigation routes directly on the map. Add waypoints, adjust legs, and measure distances and bearings. Routes can be saved, renamed, or exported for use in other navigation systems.

GPS: Live Location Updates [Mobile Only]

The GPS tool displays your vessel’s real‑time position. When enabled, the map can automatically follow your movement.

Chart Manager

The Chart Manager organizes all chart packages available to you, including those stored locally for offline use. It helps you keep your chart library current and ensures you have the right data for your voyage.

You must be signed in to download charts.

Update Package List

Refreshes the chart catalog from the server. This retrieves new packages, updates, and any changes to existing chart data.

Package Description Card

Each chart package appears as a card summarizing its region, edition, and update status. The card provides quick access to actions for viewing, downloading, or removing the package.

View

Displays this chart on the map area.

Details

Shows metadata such as scale and charts included in the package.

Download

Downloads the package for offline use. A progress indicator shows download status, and completed packages are stored locally.

Remove

Deletes the package from local storage to free space. Removed packages remain visible in the catalog and can be downloaded again.

Route Manager

The Route Manager stores all saved routes and provides tools for reviewing, editing, and organizing them. Routes can be opened on the map for planning or navigation.

Route Description Card

Each route is represented by a card showing its name, total distance, and number of waypoints. The card includes actions for viewing, editing, or deleting the route.

View

Loads the route onto the map, displaying waypoints and lines with clear symbology.

Edit

Allows the route name to be updated.

Delete

Permanently removes the route from your device.

Display Settings

Display Settings control the visual appearance of the map and charts, helping you adapt the interface to lighting conditions and personal preferences.

Theme Select

Switches between light, dark, and dusk themes. Themes adjust UI colors and map styling for readability.

Base Map Select

Allows selection of the underlying base map, currently either Open Street Map or None.

Chart Layers

Enables toggling of individual chart layers like depth contours, labels, aids to navigation, and bathymetry. This helps you focus on the information most relevant to your task.

User Settings

User Settings store personal preferences and vessel‑specific parameters used throughout the app.

Units of Measurement

Select preferred units for distance, speed, and depth, including nautical miles, kilometers, meters, feet, and knots.

Vessel Parameters

Enter vessel details such as cruising speed, draft, air draft, and fuel consumption. These values improve route planning accuracy and estimated travel times.

Go to Position

The Go to Position dialog allows you to manually enter a specific latitude and longitude and move the map to that location. This tool is useful for inspecting known coordinates, verifying reported positions, or jumping to areas outside the current view.

Search

Provides a search interface for finding map features. Search is based on the object name of features in the current map view.

Sign In / Create Account

Allows you to sign in or create an account. Signing in is required to download electronic charts.

Sign in is provided by Clerk, an industry leading user management and security platform.