api/dev.s7a.strata.component/TiledImageLevel

TiledImageLevel

data class TiledImageLevel(val tilePixelSize: IntSize, val contentUnitsPerPixel: Long)(source)

Describes one immutable resolution level in a tiled raster source.

Each source pixel covers a square of TiledImageLevel.contentUnitsPerPixel content units. Multiplying that value by TiledImageLevel.tilePixelSize gives the content extent of one tile at this level. Sources list levels from finest to coarsest and keep this geometry unchanged for their entire identity lifetime.

Throws

IllegalArgumentException

when a pixel extent or unit scale is not positive.

ArithmeticException

when a tile's content extent exceeds a Long.

Constructors

TiledImageLevel

constructor(tilePixelSize: IntSize, contentUnitsPerPixel: Long)

Properties

contentUnitsPerPixel

val contentUnitsPerPixel: Long

positive number of content-coordinate units represented by one source pixel on both axes.

tilePixelSize

val tilePixelSize: IntSize

exact positive pixel extent required from every ready tile at this level.