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jupytext:
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  text_representation:
    extension: .md
    format_name: myst
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---

```{attention}
To run locally, the code for these interactive demos requires
a [Jupyter Notebook](https://jupyter.org/) environment,
and the [Panel extension](https://panel.holoviz.org/).
```

# On uniform background
{py:func}`stimupy.stimuli.gratings.on_uniform`

```{pyodide}
:skip-embed:

import param

class OnUniformParams(param.Parameterized):
    # Image size parameters
    height = param.Integer(default=10, bounds=(1, 20), doc="Height in degrees")
    width = param.Integer(default=10, bounds=(1, 20), doc="Width in degrees")
    ppd = param.Integer(default=20, bounds=(1, 40), doc="Pixels per degree")

    grating_height = param.Number(default=5, bounds=(1, 10), step=0.1, doc="Grating height")
    grating_width = param.Number(default=5, bounds=(1, 10), step=0.1, doc="Grating width")
    frequency = param.Number(default=1, bounds=(0.1, 2), step=0.1, doc="Frequency in cpd")
    phase_shift = param.Number(default=0, bounds=(0, 360), step=1, doc="Phase shift in degrees")
    rotation = param.Number(default=0, bounds=(0, 360), step=1, doc="Rotation in degrees")
    intensity1 = param.Number(default=0.0, bounds=(0, 1), step=0.01, doc="Intensity 1")
    intensity2 = param.Number(default=1.0, bounds=(0, 1), step=0.01, doc="Intensity 2")
    intensity_background = param.Number(default=0.5, bounds=(0, 1), step=0.01, doc="Background intensity")
    intensity_target = param.Number(default=0.5, bounds=(0, 1), step=0.01, doc="Target intensity")
    target_idx = param.Integer(default=5, bounds=(1, 10), doc="Target index")

    def get_stimulus_params(self):
        return {
            "visual_size": (self.height, self.width),
            "ppd": self.ppd,
            "grating_size": (self.grating_height, self.grating_width),
            "frequency": self.frequency,
            "phase_shift": self.phase_shift,
            "rotation": self.rotation,
            "intensity_bars": (self.intensity1, self.intensity2),
            "intensity_background": self.intensity_background,
            "target_indices": (self.target_idx,),
            "intensity_target": self.intensity_target,
        }
```

```{pyodide}
:skip-embed:

from stimupy.stimuli.gratings import on_uniform
from stimupy._docs.display_stimulus import InteractiveStimDisplay

# Create and display the interactive on_uniform
on_uniform_params = OnUniformParams()
disp = InteractiveStimDisplay(on_uniform, on_uniform_params)
disp.layout
```