Class: WindowLevel

new WindowLevel(center, width)

WindowLevel class.
Pseudo-code:

 if (x <= c - 0.5 - (w-1)/2), then y = ymin
 else if (x > c - 0.5 + (w-1)/2), then y = ymax,
 else y = ((x - (c - 0.5)) / (w-1) + 0.5) * (ymax - ymin) + ymin

Parameters:

Name	Type	Description
`center`	number	The window center.
`width`	number	The window width.

Source: src/image/windowLevel.js, line 36
See: DICOM doc for Window Center and Window Width

Methods

apply(value) → {number}

Apply the window level on an input value.

Parameters:

Name	Type	Description
`value`	number	The value to rescale as an integer.

Source: src/image/windowLevel.js, line 163

Returns:

The leveled value, in the [ymin, ymax] range (default [0,255]).

Type:: number

equals(rhs) → {boolean}

Check for window level equality.

Parameters:

Name	Type	Description
`rhs`	object	The other window level to compare to.

Source: src/image/windowLevel.js, line 181

Returns:

True if both window level are equal.

Type:: boolean

getCenter() → {number}

Get the window center.

Source: src/image/windowLevel.js, line 120

Returns:

The window center.

Type:: number

getWidth() → {number}

Get the window width.

Source: src/image/windowLevel.js, line 128

Returns:

The window width.

Type:: number

setRange(min, max)

Set the output value range.

Parameters:

Name	Type	Description
`min`	number	The output value minimum.
`max`	number	The output value maximum.

Source: src/image/windowLevel.js, line 138

setSignedOffset(offset)

Set the signed offset.

Parameters:

Name	Type	Description
`offset`	number	The signed data offset, typically: slope * ( size / 2).

Source: src/image/windowLevel.js, line 150

toString() → {string}

Get a string representation of the window level.

Source: src/image/windowLevel.js, line 192

Returns:

The window level as a string.

Type:: string