aPriori.DNS.Scalar3D¶

class aPriori.DNS.Scalar3D(shape, value=None, path='')¶

A class representing a 3D scalar field.

Attributes:¶

__scalar_dimensionint: The dimension of the scalar field.
test_phasebool: A flag indicating whether the test phase is active.
VALID_DIMENSIONSlist: A list of valid dimensions for the scalar field.

Methods:¶

__init__(shape, value=None, path=’’):: Initializes a Scalar3D object.
value: Getter and setter for the value attribute.
shape: Getter and setter for the shape attribute.
path: Getter and setter for the path attribute.
Nx: Getter and setter for the Nx attribute.
Ny: Getter and setter for the Ny attribute.
Nz: Getter and setter for the Nz attribute.
file_name: Getter and setter for the file_name attribute.
file_id: Getter and setter for the file_id attribute.
filter_size: Getter and setter for the filter_size attribute.
_3d: Getter for the 3D reshaped scalar field.
is_light_mode():: Checks if the scalar field is in light mode.
reshape_3d():: Reshapes the scalar field to 3D.
reshape_column():: Reshapes the scalar field to a column vector.
reshape_line():: Reshapes the scalar field to a row vector.
cut(n_cut=1, mode=’equal’):: Cuts the scalar field.
filter_gauss(delta, n_cut=0, mute=False):: Filters the scalar field with a Gaussian function.
plot_x_midplane(mesh, title=’’, colormap=’viridis’, vmin=None, vmax=None): Plots the x midplane of a 3D field.
plot_y_midplane(mesh, title=’’, colormap=’viridis’, vmin=None, vmax=None): Plots the y midplane of a 3D field.
plot_z_midplane(mesh, title=’’, colormap=’viridis’, vmin=None, vmax=None): Plots the z midplane of a 3D field.

test_phase = True¶

VALID_DIMENSIONS = [3, 1]¶

property shape¶

property value¶

property path¶

property Nx¶

property Ny¶

property Nz¶

property file_name¶

property file_id¶

property filter_size¶

property x_midplane¶

property y_midplane¶

property z_midplane¶

is_light_mode()¶

Checks if the scalar field is in light mode, that is when only the path is specified without specifying the value as an array.

Returns:¶

: bool

True if the scalar field is in light mode, False otherwise.

Raises:¶

ValueError: If neither the value nor the path is specified.

lenght()¶

reshape_3d()¶: Reshapes the scalar field to 3D.

Returns:¶

: array-like

The scalar field reshaped to 3D.

reshape_column()¶: Reshapes the scalar field to a column vector.

Returns:¶

: array-like

The scalar field reshaped to a column vector.

reshape_line()¶: Reshapes the scalar field to a row vector.

Returns:¶

: array-like

The scalar field reshaped to a row vector.

cut(n_cut=1, mode='equal')¶

Cuts the scalar field.

n_cutint or tuple, optional
The number of samples to cut at the extrema. If mode is ‘equal’, n_cut is an integer specifying the number of samples to cut from each side. If mode is ‘xyz’, n_cut is a tuple specifying the number of samples to cut for each dimension. Default is 1.

mode{‘equal’, ‘xyz’}, optional
The mode of cutting. ‘equal’ cuts the same number of samples from each side, ‘xyz’ allows specifying the number of samples to cut for each dimension. Default is ‘equal’.

array-like
The cut scalar field.
>>> # Example of cutting a scalar field
>>> field = Scalar3D(shape=[10, 10, 10], value=np.random.rand(10, 10, 10))
>>> # Cut the field with equal number of samples removed from each side
>>> cut_field_equal = field.cut(n_cut=2, mode='equal')
>>> print("Cut field with equal mode:")
>>> print(cut_field_equal)
>>> # Cut the field with specified number of samples removed for each dimension
>>> cut_field_xyz = field.cut(n_cut=(1, 2, 3), mode='xyz')
>>> print("

Cut field with xyz mode:”)

>>> print(cut_field_xyz)

filter_gauss(delta, n_cut=0, mute=False)¶

Filters the scalar field with a Gaussian function. The variance sigma is considered equal to:

sigma = sqrt(1/12*delta**2)

where delta is the filter size (in this case specified as the number of cells and not in meters)

Parameters:¶

deltafloat: The amplitude of the Gaussian filter.
n_cutint, optional: The number of samples to cut at the extrema. Default is 0.
mutebool, optional: A flag indicating whether to mute the output. Default is False.

Returns:¶

: array-like

The filtered scalar field.

plot_x_midplane(mesh, title='', colormap='viridis', vmin=None, vmax=None)¶

Plots the x midplane of a 3D field.

Description:¶

This method plots the x midplane of a 3D field using the provided mesh. It uses the midpoint of the x-axis to generate a 2D plot of the field values at that plane.

Parameters:¶

meshobject: The mesh object containing the coordinates.
titlestr, optional: The title of the plot. Default is an empty string.
colormapstr, optional: The colormap to use for the plot. Default is ‘viridis’.
vminfloat, optional: The minimum value for the color scale. Default is None.
vmaxfloat, optional: The maximum value for the color scale. Default is None.

Returns:¶

: None

plot_y_midplane(mesh, title='', colormap='viridis', vmin=None, vmax=None)¶

Plots the y midplane of a 3D field.

Description:¶

This method plots the y midplane of a 3D field using the provided mesh. It uses the midpoint of the x-axis to generate a 2D plot of the field values at that plane.

Parameters:¶

meshobject: The mesh object containing the coordinates.
titlestr, optional: The title of the plot. Default is an empty string.
colormapstr, optional: The colormap to use for the plot. Default is ‘viridis’.
vminfloat, optional: The minimum value for the color scale. Default is None.
vmaxfloat, optional: The maximum value for the color scale. Default is None.

Returns:¶

: None

plot_z_midplane(mesh, title='', colormap='viridis', vmin=None, vmax=None)¶

Plots the x midplane of a 3D field.

Description:¶

This method plots the x midplane of a 3D field using the provided mesh. It uses the midpoint of the x-axis to generate a 2D plot of the field values at that plane.

Parameters:¶

meshobject: The mesh object containing the coordinates.
titlestr, optional: The title of the plot. Default is an empty string.
colormapstr, optional: The colormap to use for the plot. Default is ‘viridis’.
vminfloat, optional: The minimum value for the color scale. Default is None.
vmaxfloat, optional: The maximum value for the color scale. Default is None.

Returns:¶

: None