Interface IDynamicFeaturePortrayal

Namespace

EncDotNet.S100.Portrayals.Application

Assembly

EncDotNet.S100.Portrayals.dll

A code-defined portrayal of the features of an IDynamicFeatureSource: S-100 Part 9 drawing instructions, built with an InstructionBuilder, plus the palette and symbols they resolve against.

public interface IDynamicFeaturePortrayal

Remarks

A dynamic source's features are drawn by a host-specific renderer (for Mapsui, PortrayedDynamicFeatureRenderer in EncDotNet.S100.Renderers.Mapsui). A portrayal keeps the symbology renderer-neutral, so the same instructions draw on the map, headless, and in tests, by the same rules as a vector product's: symbol and text scale, SCAMIN and rotation.

Each instruction's feature reference is the feature's Id; resolve geometry with DynamicFeatureGeometryProvider. Implementations must be pure functions of the feature and safe to call from any thread.

Properties

Palette

The palette the instructions' colour tokens and the symbols' palette classes resolve against.

ApplicationPalette Palette { get; }

Property Value

ApplicationPalette

SymbolProvider

Resolves a symbol reference to its S-100 SVG, or null for an unknown one.

Func<string, string?> SymbolProvider { get; }

Property Value

Func<string, string>

Methods

CanPortray(DynamicFeature)

Whether this portrayal draws feature.

bool CanPortray(DynamicFeature feature)

Parameters

feature DynamicFeature

The feature.

Returns

bool

Portray(DynamicFeature)

The drawing instructions of feature; empty when it has nothing to draw.

IReadOnlyList<DrawingInstruction> Portray(DynamicFeature feature)

Parameters

feature DynamicFeature

The feature.

Returns

IReadOnlyList<DrawingInstruction>