WorldWind Kotlin/earth.worldwind.shape.milstd2525/MilStd2525Renderer

MilStd2525Renderer

Target-agnostic facade over the per-target mil-sym-ts (C5Ren) + canvg bindings, expressed in plain Kotlin / DOM types only, so the WorldWind-facing point-symbol code (MilStd2525, MilStd2525Placemark) can live in webMain while the generated @JsModule externs (C5Ren / C5RenTypes / Canvg) stay per-target behind this seam.

The signatures deliberately leak NO generated types: Map<String, String> (not the per-target JsMap), Double (not the int/number aliases that resolve to Number on js vs Double on wasm), and HTMLCanvasElement (a kotlinx-browser type present on both targets). Each per-target adapter (createMilStd2525Renderer) absorbs the Number↔Double coercion, the JS-Map construction, and the @JsModule/@JsNonModule difference internally.

Multipoint tactical graphics (MilStd2525TacticalGraphic) are NOT routed through here — they consume the MilStdSymbol / multipoint renderer API directly and remain per-target.

Functions

applyTextAttributes

abstract fun applyTextAttributes(textAttributes: TextAttributes)

Apply the renderer's current label-font settings (family / size / weight) to textAttributes.

getUnfilledAttributes

abstract fun getUnfilledAttributes(symbolId: String): Map<String, String>

MIL-STD attribute overrides that render symbolId unfilled (affiliation line colour), or empty.

isTacticalGraphic

abstract fun isTacticalGraphic(symbolId: String): Boolean

Whether symbolId denotes a tactical graphic (vs a point symbol).

renderSymbol

abstract fun renderSymbol(symbolCode: String, modifiers: Map<String, String>? = null, attributes: Map<String, String>? = null): MilStd2525Symbol?

Render a point symbol: the rasterized canvas plus the symbol-center and symbol-bounds geometry the placemark needs for its image/label offsets. Null if the renderer produced nothing. Both maps are optional — null is treated as empty.

renderTacticalGraphic

abstract fun renderTacticalGraphic(symbolID: String, controlPoints: List<Location>, pointULLon: Double, pointULLat: Double, scale: Double, densityFactor: Float, modifiers: Map<String, String>? = null, attributes: Map<String, String>? = null): List<MilStd2525Shape>

Render a multipoint tactical graphic to a list of target-agnostic MilStd2525Shapes. The adapter builds & configures the MilStdSymbol from controlPoints, runs the multipoint renderer at the given scale/densityFactor anchored at the upper-left (pointULLon, pointULLat), and converts every resulting shape (pixels→geo, colours, images) into plain Kotlin.