# PolarChart.ScreenPointToDiagramPoint method

Converts a position in control coordinates to the corresponding angle and value.

**Namespace:** [`Eremex.AvaloniaUI.Charts`](../index.md)  
**Assembly:** `Eremex.Avalonia.Charts.dll`  
**NuGet Package:** [Eremex.Avalonia.Controls](https://www.nuget.org/packages/Eremex.Avalonia.Controls)

## Declaration

```csharp
public PolarDiagramCoordinates ScreenPointToDiagramPoint(Point position)
```

## Parameters

| name | type | description |
| --- | --- | --- |
| position | `Point` | The position within the control, in device-independent units. |

## Returns

| type | description |
| --- | --- |
| [`PolarDiagramCoordinates`](../PolarDiagramCoordinates.md) | The angle in radians and the value under the given position, together with a flag that tells whether the position falls inside the plot area. |

## See Also

* class [PolarDiagramCoordinates](../PolarDiagramCoordinates.md)
* class [PolarChart](../PolarChart.md)
* namespace [Eremex.AvaloniaUI.Charts](../index.md)

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