Class: Emagram

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 Emagram()

Extends: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem
See also: https://en.wikipedia.org/wiki/Emagram

Properties

public

height unknown

Visible height, in pixels.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#height

public

width unknown

Visible width, in pixels.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#width

Methods

_normalizeTemperatureRange()

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#_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			Pixels from the left.
y			Pixels from bottom.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getPByXY
Returns: 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			Pixels from the left.
p			Pressure in hPa.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getTByXP
Returns: Temperature in Kelvin.

getTByXY(x, y) → number

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

Parameters

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

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getTByXY
Returns: 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			Pressure in hPa.
thetae			Equipotential temperaturen in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getXByPEquiPotTemp
Returns: 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			Pressure in hPa.
hmr			Humid mixing ratio. []

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getXByPHMR
Returns: 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			Pressure in hPa.
T			Potential temperature in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getXByPPotentialTemperatur
Returns: 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			Pressure in hPa.
T			Temperature in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getXByPT
Returns: 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			Pixels from bottom.
thetae			Equipotential temperaturen in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getXByYEquiPotTemp
Returns: 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			Pixels from bottom.
hmr			Humid mixing ratio. []

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getXByYHMR
Returns: 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			Pixels from bottom.
T			Potential temperature in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getXByYPotentialTemperature
Returns: 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			Pixels from bottom.
T			Temperature in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getXByYT
Returns: 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			Pressure in hPa.
thetae			Equipotential temperaturen in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getYByPEquiPotTemp
Returns: 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			Pressure in hPa.
hmr			Humid mixing ratio. []

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getYByPHMR
Returns: 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			Pressure in hPa.
T			Potential temperature in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getYByPPotentialTemperatur
Returns: 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			Pressure in hPa.
T			Temperature in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getYByPT
Returns: 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			Pixels from the left.
thetae			Equipotential temperaturen in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getYByXEquiPotTemp
Returns: 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			Pixels from the left.
hmr			Humid mixing ratio. []

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getYByXHMR
Returns: 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			Pixels from the left.
p			Pressure in hPa.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getYByXP
Returns: 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			Pixels from the left.
T			Potential temperature in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getYByXPotentialTemperature
Returns: 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			Pixels from the left.
T			Temperature in Kelvin.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#getYByXT
Returns: Pixels from bottom.

isDryAdiabatStraightLine() → boolean

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

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#isDryAdiabatStraightLine
Returns

isIsobarsStraightLine() → boolean

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

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#isIsobarsStraightLine
Returns

isIsothermsVertical() → boolean

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#isIsothermsVertical
Returns

update([options])

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

Parameters

Name Type Optional Description

options

Yes

Options.

Values in options have the following properties:

Name	Type	Optional	Description
pressure		Yes	Pressure options.
temperature		Yes	Temperature options.

Inherited from: module:meteoJS/thermodynamicDiagram/coordinateSystem.CoordinateSystem#update