Table of Contents

Class PressureIsobarStyle

Namespace
EncDotNet.S100.Datasets.Weather
Assembly
EncDotNet.S100.Datasets.Weather.dll

Mean sea level pressure (pressure.msl) as isobars every IntervalHectopascals hPa, labelled in hectopascals (e.g. 1012). On by default (wherever the data has pressure).

public sealed class PressureIsobarStyle : WeatherCoverageStyle, ICoverageStyle
Inheritance
PressureIsobarStyle
Implements
Inherited Members

Remarks

The isobars are value-based ContourStyles (Contours) in the field's stored unit, pascals, from LowestHectopascals to HighestHectopascals hPa, beyond the recorded extremes; only the levels a grid's values reach are traced. WeatherPortrayal traces them with marching squares through the sampled grid (CoverageContours) into an IsolineCoverageSubLayer, which both renderers draw as solid lines of constant pixel width with labels along them.

Layer order (design note weather-sources.md §5): S-98 OtherChartOverlays at priority IsolinePriority (90), under the observations. Pressure is drawn over land as well as sea, so the lines aren't clipped to water.

Constructors

PressureIsobarStyle()

Creates the style, with the Day palette active.

public PressureIsobarStyle()

Fields

HighestHectopascals

The highest isobar: 1100 hPa, over any recorded sea level pressure.

public const int HighestHectopascals = 1100

Field Value

int

IntervalHectopascals

The isobar interval: 4 hPa.

public const int IntervalHectopascals = 4

Field Value

int

Key

The sub-layer key, "weather.pressure.isobars".

public const string Key = "weather.pressure.isobars"

Field Value

string

LineWidth

The line width, in device-independent pixels.

public const float LineWidth = 1.2

Field Value

float

LowestHectopascals

The lowest isobar: 860 hPa, under any recorded sea level pressure.

public const int LowestHectopascals = 860

Field Value

int

Properties

Contours

One solid, labelled contour per LevelsPascals level, in pascals, in the active palette's IsobarInkToken.

public override IReadOnlyList<ContourStyle> Contours { get; }

Property Value

IReadOnlyList<ContourStyle>

LevelsPascals

The isobar levels in pascals, lowest first: 86000, 86400, … 110000.

public static IReadOnlyList<double> LevelsPascals { get; }

Property Value

IReadOnlyList<double>

Methods

FormatContourLabel(ContourStyle)

The label of an isobar: its pressure in whole hectopascals, e.g. "1012".

public override string FormatContourLabel(ContourStyle contour)

Parameters

contour ContourStyle

An isobar, valued in pascals.

Returns

string
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