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 # Interface IOperationsHeatmapLineDataSeriesViewModel

 Last update: 16.07.2025 

Namespace: [VM.Operations.Post.Interfaces](VM.Operations.Post.Interfaces.md)  
Assembly: VM.Operations.Post.dll

```csharp
public interface IOperationsHeatmapLineDataSeriesViewModel : IOperationsLineDataSeriesViewModelBase, ILineDataSeriesViewModelBase, IHasSourceViewModel, IViewModel, IObservableObject, IDisposableObject, IEnabled, IExpanded, ISelected, IVisible, IThicknessProperty, IOperationsBase

```

#### Implements

[IOperationsLineDataSeriesViewModelBase](VM.Operations.Post.Interfaces.IOperationsLineDataSeriesViewModelBase.md), ILineDataSeriesViewModelBase, IHasSourceViewModel, IViewModel, IObservableObject, IDisposableObject, IEnabled, IExpanded, ISelected, IVisible, IThicknessProperty, [IOperationsBase](VM.Operations.Post.Interfaces.IOperationsBase.md)

## Properties

### Harmonic

Get or Set the slope of the curve at start point.

```csharp
double Harmonic { get; set; }

```

#### Property Value

[double](https://learn.microsoft.com/dotnet/api/system.double)

### Interval

Get or Set the value of the interval.

```csharp
double Interval { get; set; }

```

#### Property Value

[double](https://learn.microsoft.com/dotnet/api/system.double)