Class CoverageSymbolField

Namespace

EncDotNet.S100.Rendering.Scene

Assembly

EncDotNet.S100.Rendering.Scene.dll

The oriented symbols (e.g. S-111 current arrows) of one styled coverage grid, flattened to row-major arrays in EPSG:3857: one entry per grid cell, with the resolved symbol band, the band's symbol scale, the rotation and the thinning priority. Shared by the Mapsui and headless Skia arrow renderers so both place, size and thin the same arrows.

public sealed class CoverageSymbolField

Inheritance

object

CoverageSymbolField

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Properties

Bands

Per-cell resolved symbol band, null for a cell without a symbol.

public SymbolBand?[] Bands { get; }

Property Value

SymbolBand[]

Cols

Number of grid columns.

public int Cols { get; }

Property Value

int

Priority

Per-cell thinning priority: the band-selecting value (for S-111, the speed).

public float[] Priority { get; }

Property Value

float[]

Rotation

Per-cell rotation, degrees clockwise from north.

public float[] Rotation { get; }

Property Value

float[]

Rows

Number of grid rows.

public int Rows { get; }

Property Value

int

Scale

Per-cell symbol scale from the band (ScaleFor(float)), NaN for a cell without a symbol (no data, or no band for the value).

public float[] Scale { get; }

Property Value

float[]

X

Per-cell EPSG:3857 x of the cell centre; NaN for a cell beyond ±MaxLatitude, which has no symbol.

public double[] X { get; }

Property Value

double[]

Y

Per-cell EPSG:3857 y of the cell centre; NaN like X.

public double[] Y { get; }

Property Value

double[]

Methods

Build(StyledCoverageLayer, ICrsTransform)

Builds the field for layer's symbol scheme.

public static CoverageSymbolField Build(StyledCoverageLayer layer, ICrsTransform nativeToWgs84)

Parameters

layer StyledCoverageLayer

A styled coverage layer with a SymbolScheme.

nativeToWgs84 ICrsTransform

Transform from the grid's native CRS to WGS84.

Returns

CoverageSymbolField

The field; every cell is marked symbol-less when the layer has no symbol scheme.