Documentation

Why it matters

EncDotNet.S100 combines multiple S-100 products, portrayals, and renderers in one stack. This documentation is organized to get you to a visible success quickly, then guide you into deeper API and architecture detail.

Quick win

Start here: choose your path and get a result in minutes.

🧭 Audience paths: Viewer / Library / Contributor ⚡ First success in minutes 📚 Curated top APIs by package

Deep dive

Supported products

Standard	Subject	Encoding	Portrayal	Validation pack	Library
S-101	Electronic Navigational Charts	ISO 8211	Lua (Part 9A)	✅	Datasets.S101
S-102	Bathymetric Surfaces	HDF5	Coverage (Lua)	✅	Datasets.S102
S-104	Water Level Information	HDF5	Coverage	✅	Datasets.S104
S-111	Surface Currents	HDF5	Coverage arrows	✅	Datasets.S111
S-122	Marine Protected Areas	GML	XSLT	✅	Datasets.S122
S-124	Navigational Warnings	GML	XSLT	✅	Datasets.S124
S-125	Marine Aids to Navigation	GML	XSLT	✅	Datasets.S125
S-127	Marine Resources & Services	GML	XSLT	✅	Datasets.S127
S-128	Catalogue of Nautical Products	GML	XSLT	✅	Datasets.S128
S-129	Under Keel Clearance Management	GML	XSLT	✅	Datasets.S129
S-131	Marine Harbour Infrastructure	GML	Lua (Part 9A)	✅	Datasets.S131
S-201	Aids to Navigation Information (IALA)	GML	XSLT	✅	Datasets.S201
S-411	Sea Ice Information	GML	XSLT	✅	Datasets.S411
S-421	Route Plans	GML	XSLT	✅	Datasets.S421
S-401 (IEHG)	Inland ENC	ISO 8211	Lua (Part 9A)	—	Specifications/content/S401
S-57 (legacy)	Electronic Navigational Charts (Ed 3.1)	ISO 8211	via S-101 pipeline	✅ (delegated)	Datasets.S57

Guides

Start here — audience-based entry page.
Getting started — first rendered output via Viewer, library, or CLI.
Loading datasets — files, folders, ZIPs, exchange sets and S-101 updates.
Reading protected exchange sets — S-100 Part 15 permits, decryption and signatures.
Reading product data — each product's features, typed models, grids and time series.
Custom catalogues and validation — your own catalogues, and validation rules.
Scenario guides — task-focused workflows.
Top APIs — curated API entry points per package.
Command-line rendering — full s100 command and option guide.
Embedding the renderer — scene/rendering integration seam.
Typed data models — strongly-typed projections on feature bags.
Observability — logs, traces, and metrics.
C# coding style guide — normative style for contributors.
MCP server — AI-agent tool surface.
What's new — docs and experience highlights.

Visual gallery

S-101 ENC	S-102 Bathymetry

Portrayal comparison (before/after workflow)

Before (base chart context)	After (with temporal/overlay analysis)

flowchart LR
  A[Reader] --> B[Portrayal]
  B --> C[Drawing instructions / coverage]
  C --> D[Renderer]
  D --> E[Viewer / CLI / PNG]

Design notes

The design/ folder collects shipped implementation contracts and rationale.

Troubleshooting

Important

If the site looks unstyled, check that docs/template (which provides public/main.css) is still listed under template in docfx.json.

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