Docs

Docs

Technical documents and product articles covering chart data formats, warning capabilities, deployment integration, application scenarios, and large model integration. Continuously updated with each product release.

All Documents

Screenshot of a merged multi-cell coverage view with field information

Chart Data Format Notes

Explains the differences between S-57, S-63, and S-101 chart data, plus licensing, updates, and what to confirm before integration.

Chart dataS-572026-09-21

Screenshot of the main view with layer manager and chart object properties panel

Warning Capability Notes

Outlines trigger basis, alert levels, and configurable options for shoal, obstruction, off-course, speed-limit, prohibited-area, and bridge-clearance warnings.

WarningNavigation safety2026-09-21

Screenshot of the Eastar Map offline license evaluation dialog

Deployment and Integration Guide

Introduces onboard, shore-side, and hybrid deployment scenarios, runtime environment requirements, and integration flows using NMEA and WebSocket interfaces.

DeploymentIntegration2026-09-21

Screenshot of a loaded chart cell with layer features and chart file properties

Eastar Map: Safer Navigation on Every Voyage

From brand positioning to applicable scenarios, this article explains how Eastar Map supports navigation through chart display, live positioning, risk warning, and route planning.

BrandNavigation support2026-09-21

Charts Are Not Only for Looking: They Participate in Judgment

Chart display is only the start. This article explains how chart data, live positioning, risk warning, and route planning work together to support navigation decisions.

Chart displayRisk warning2026-09-21

Session screenshot of a large model rendering a chart to WebP through the MCP s57render tool

Letting Large Models Call Local Chart Capabilities: The Eastar Map CLI Approach

How local C/C++ chart capabilities reach large model clients safely: a stable C ABI, the eastarmap_cli.exe JSON command contract, and a Python MCP Server.

LLM integrationMCP2026-09-21

Six Navigation Scenarios That All Need Clearer Risk Prompts

Ocean shipping, coastal fishing, inland waterways, port operations, and maritime supervision differ in detail but share one need: seeing risk earlier and keeping the route controllable.

ScenariosNavigation safety2026-09-21

From Website to Release: What Eastar Map Has Prepared

From brand entry and product description to application scenarios and a release path, this article reviews the foundation the Eastar Map website already provides.

BrandRelease readiness2026-09-21

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