Image module

class lys.widgets.canvas.interface.Image.ImageData(canvas, wave, axis)[source]

Bases: WaveData

Interface to access image data in the canvas.

Instance of ImageData is automatically generated by display or append methods.

Example:

from lys import display
g = display([[1,2,3],[4,5,6]])
g.getImages()[0].setColormap('gray')

getAutoColorRange()[source]

Get the automarically-calculated color range of the image, which is used by setColorRange() method.

Returns: minimum and maximum value of the range.
Return type: tuple of length 2

getColorRange()[source]

Get the color range of the image.

Returns: minimum and maximum value of the range.
Return type: tuple of length 2

getColorbarDirection()[source]

Get the direction of the colorbar.

Returns: The direction of the colorbar.
Return type: str

getColorbarPosition()[source]

Get the position of the colorbar.

Returns: The position of the colorbar.
Return type: length 2 float

getColorbarSize()[source]

Get the size of the colorbar.

Returns: The size of the colorbar.
Return type: length 2 float

getColorbarVisible()[source]

Get the visibility of the colorbar.

Returns: The visibility.
Return type: bool

getColormap()[source]

Get colormap of the image.

Returns: colormap string such as ‘gray’
Return type: str

getGamma()[source]

Get the gamma value of the image.

Returns: The gamma value.
Return type: float

getOpacity()[source]

Get the opacity of the image.

Returns: The opacity.
Return type: float

isLog()[source]

Return true if the color scale is logarithmic.

Returns: If True, logarithmic scale is enabled.
Return type: bool

setColorRange(min='auto', max='auto')[source]

Set the color range of the image.

Parameters

min (float or 'auto') – The minimum value of the range.
max (float or 'auto') – The maximum value of the range.

setColorbarDirection(direction)[source]

Set the direction of the colorbar.

Parameters: direction ('vretical' or 'horizontal') – The direction of the colorbar.

setColorbarPosition(pos)[source]

Set the position of the colorbar.

Parameters: pos (length 2 float) – The position of the colorbar in the form of (x,y).

setColorbarSize(size)[source]

Set the size of the colorbar.

Parameters: size (length 2 float) – The size of the colorbar in the form of (width, height).

setColorbarVisible(visible)[source]

Set the visibility of the colorbar.

Parameters: visible (bool) – The visibility.

setColormap(cmap)[source]

Set colormap of the image.

Parameters: colormap (str) – colormap string such as ‘gray’.

setGamma(gamma)[source]

Set gamma value of the image.

Parameters: gamma (float) – The gamma value.

setLog(log)[source]

Set the color scale to be logarithmic.

Parameters: log (bool) – If log is True, logarithmic scale is enabled.

setOpacity(opacity)[source]

Set the opacity of the image.

Parameters: opacity (float) – The opacity.