# PolarChart.DiagramPointToScreenPoint method

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

**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 Point? DiagramPointToScreenPoint(double argument, object value)
```

## Parameters

| name | type | description |
| --- | --- | --- |
| argument | `double` | The angle, in radians. |
| value | `object` | The value on the radial axis. |

## Returns

| type | description |
| --- | --- |
| `Point?` | The position within the control, or `null` if the value falls outside the visible range of the radial axis. |

## See Also

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

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