class abstract static

coordinateSystem.CoordinateSystem

Source: thermodynamicDiagram/CoordinateSystem.js:68

Abstract class to specify the coordinate system of the thermodynamicDiagram.

Child classes define the explicit coordinate system. This class defines already: (can be overridden by child classes)

log-P y-axes with horizontal isobars
straight isotherms, inclinated to the right

import CoordinateSystem from 'meteojs/thermodynamicDiagram/CoordinateSystem';

Properties

height

width

Methods

_normalizeTemperatureRange()
getPByXY(x, y)
getTByXP(x, p)
getTByXY(x, y)
getXByPEquiPotTemp(p, thetae)
getXByPHMR(p, hmr)
getXByPPotentialTemperatur(p, T)
getXByPT(p, T)
getXByYEquiPotTemp(y, thetae)

getXByYHMR(y, hmr)
getXByYPotentialTemperature(y, T)
getXByYT(y, T)
getYByPEquiPotTemp(p, thetae)
getYByPHMR(p, hmr)
getYByPPotentialTemperatur(p, T)
getYByPT(p, T)
getYByXEquiPotTemp(x, thetae)
getYByXHMR(x, hmr)

getYByXP(x, p)
getYByXPotentialTemperature(x, T)
getYByXT(x, T)
isDryAdiabatStraightLine()
isIsobarsStraightLine()
isIsothermsVertical()
update([options])

new CoordinateSystem(options)

Parameter

Name	Type	Optional	Description
options

Fires: module:meteoJS/thermodynamicDiagram/coordinateSystem#change:options

Properties

public

height integer

Visible height, in pixels.

public

width integer

Visible width, in pixels.

Methods

_normalizeTemperatureRange()

getPByXY(x, y) → number

Pressure for a x-y coordinate. Implementation valid for horizontal isobars, log-P y-axes.

Parameters

Name	Type	Optional	Description
x	number		Pixels from the left.
y	number		Pixels from bottom.

Returns: number Pressure in hPa.

getTByXP(x, p) → number

Temperature for pressure and x coordinate. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
x	number		Pixels from the left.
p	number		Pressure in hPa.

Returns: number Temperature in Kelvin.

getTByXY(x, y) → number

Temperature for x-y coordinate. Implementation valid for straight isotherms.

Parameters

Name	Type	Optional	Description
x	number		Pixels from the left.
y	number		Pixels from bottom.

Returns: number Temperature in Kelvin.

getXByPEquiPotTemp(p, thetae) → number

x coordinate for pressure and equipotential temperature . Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
p	number		Pressure in hPa.
thetae	number		Equipotential temperaturen in Kelvin.

Returns: number Pixels from the left.

getXByPHMR(p, hmr) → number

x coordinate for pressure and humid mixing ratio. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
p	number		Pressure in hPa.
hmr	number		Humid mixing ratio. []

Returns: number Pixels from the left.

getXByPPotentialTemperatur(p, T) → number

x coordinate for pressure and potential temperature. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
p	number		Pressure in hPa.
T	number		Potential temperature in Kelvin.

Returns: number Pixels from the left.

getXByPT(p, T) → number

x coordinate for pressure and temperature. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
p	number		Pressure in hPa.
T	number		Temperature in Kelvin.

Returns: number Pixels from the left.

getXByYEquiPotTemp(y, thetae) → number

x coordinate for equipotential temperature and y coordainte. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
y	number		Pixels from bottom.
thetae	number		Equipotential temperaturen in Kelvin.

Returns: number Pixels from the left.

getXByYHMR(y, hmr) → number

x coordinate for humid mixing ratio and y coordinate. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
y	number		Pixels from bottom.
hmr	number		Humid mixing ratio. []

Returns: number Pixels from the left.

getXByYPotentialTemperature(y, T) → number

x coordinate for potential temperature and y coordinate. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
y	number		Pixels from bottom.
T	number		Potential temperature in Kelvin.

Returns: number Pixels from the left.

getXByYT(y, T) → number

x coordinate for temperature and y coordinate. Implementation valid for straight isotherms.

Parameters

Name	Type	Optional	Description
y	number		Pixels from bottom.
T	number		Temperature in Kelvin.

Returns: number Pixels from the left.

getYByPEquiPotTemp(p, thetae) → (number or undefined)

y coordinate for pressure and equipotential temperature . Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
p	number		Pressure in hPa.
thetae	number		Equipotential temperaturen in Kelvin.

Returns: (number or undefined) Pixels from bottom.

getYByPHMR(p, hmr) → (number or undefined)

y coordinate for pressure and humid mixing ratio. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
p	number		Pressure in hPa.
hmr	number		Humid mixing ratio. []

Returns: (number or undefined) Pixels from bottom.

getYByPPotentialTemperatur(p, T) → number

y coordinate for pressure and potential temperature. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
p	number		Pressure in hPa.
T	number		Potential temperature in Kelvin.

Returns: number Pixels from bottom.

getYByPT(p, T) → number

y coordinate for pressure and temperature. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
p	number		Pressure in hPa.
T	number		Temperature in Kelvin.

Returns: number Pixels from bottom.

getYByXEquiPotTemp(x, thetae) → (number or undefined)

y coordinate for equipotential temperature and x coordinate. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
x	number		Pixels from the left.
thetae	number		Equipotential temperaturen in Kelvin.

Returns: (number or undefined) Pixels from bottom.

getYByXHMR(x, hmr) → (number or undefined)

y coordinate for humid mixing ratio and x coordinate. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
x	number		Pixels from the left.
hmr	number		Humid mixing ratio. []

Returns: (number or undefined) Pixels from bottom.

getYByXP(x, p) → number

y coordinate for pressure and x coordinate. Implementation valid for horizontal isobars, log-P y-axes.

Parameters

Name	Type	Optional	Description
x	number		Pixels from the left.
p	number		Pressure in hPa.

Returns: number Pixels from bottom.

getYByXPotentialTemperature(x, T) → (number or undefined)

y coordinate for potential temperature and x coordinate. Implementation valid for horizontal isobars, log-P y-axes and straight isotherms.

Parameters

Name	Type	Optional	Description
x	number		Pixels from the left.
T	number		Potential temperature in Kelvin.

Returns: (number or undefined) Pixels from bottom.

getYByXT(x, T) → (number or undefined)

y coordinate for temperature and x coordinate. Implementation valid for straight isotherms.

Parameters

Name	Type	Optional	Description
x	number		Pixels from the left.
T	number		Temperature in Kelvin.

Returns: (number or undefined) Pixels from bottom.

isDryAdiabatStraightLine() → boolean

Returns if the dry adiabats are straight lines in the defined coordinate system.

Returns: boolean

isIsobarsStraightLine() → boolean

Returns if isobars are straight lines in the defined coordinate system.

Returns: boolean

isIsothermsVertical() → boolean

Returns: boolean

update([options])

Updates options. To restore a default value, pass undefined.

Parameters

Name Type Optional Description

options

Object

Yes

Options.

Values in options have the following properties:

Name	Type	Optional	Description
pressure	module:meteoJS/thermodynamicDiagram/coordinateSystem~pressureOptions	Yes	Pressure options.
temperature	module:meteoJS/thermodynamicDiagram/coordinateSystem~temperatureOptions	Yes	Temperature options.