Action: FOURIER_TRANSFORM
| Module | fourier |
|---|---|
| Description | Usage |
| Compute the Discrete Fourier Transform (DFT) by means of FFTW of data stored on a 2D grid. |   |
| output value | type |
| the fourier transform of the input grid | grid |
Output components
This action can calculate the values in the following table when the associated keyword is included in the input for the action. These values can be referenced elsewhere in the input by using this Action’s label followed by a dot and the name of the value required from the list below.
| Name | Type | Keyword | Description |
|---|---|---|---|
| real | grid | FT_TYPE | the real part of the function |
| imag | grid | FT_TYPE | the imaginary part of the function |
Input
The arguments that serve as the input for this action are specified using one or more of the keywords in the following table.
| Keyword | Type | Description |
|---|---|---|
| ARG | grid | the label of the grid that you want to fourer transform |
Further details and examples
Text from manual goes here
References
More information about how this action can be used is available in the following articles:
Syntax
The following table describes the keywords and options that can be used with this action
| Keyword | Type | Default | Description |
|---|---|---|---|
| ARG | input | none | the label of the grid that you want to fourer transform |
| FOURIER_PARAMETERS | compulsory | default | what kind of normalization is applied to the output and if the Fourier transform in FORWARD or BACKWARD |
| SERIAL | optional | false | do the calculation in serial |
| FT_TYPE | optional | not used | choose what kind of data you want as output on the grid |