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 # Interface IOperationsLegendModifier

 Last update: 09.03.2026 

<a id="VM_Operations_Post_Interfaces_IOperationsLegendModifier"></a>

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

This interface contains properties that modify the attributes of the Legend.

```csharp
public interface IOperationsLegendModifier

```

## Examples

To view the examples, refer to the location of the 'Install\_Path\\Motion\\Document\\Postprocessor API for Python.zip' file.

```python
# IOperationsLegendModifier.py
import sys

# Get the current file's path and set the path for external modules.
current_dir = __file__.rsplit('\\', 1)[0]
external_modules_path = current_dir + '\\..\\..\\Modules'
sys.path.append(external_modules_path)

# Import necessary modules
from OperationAPI import *

# Start the headless application interface
applicationHandler = ApplicationHandler()

# Import result file
result_file_path = get_result_file_path()

# Set array about result file
filepaths = List[str]()
filepaths.Add(result_file_path)

# Open about result files
# This will open the result file in the application.
# When the result is first opened, a Page is created and an Animation View is created on that Page.
applicationHandler.AddDocument(filepaths)

# Get Active Page
# This retrieves the currently active page in the application.
page = applicationHandler.GetActivePage()

# Creating a Chart
# Create a new Chart View on the page
# This will create a new chart view with the specified name.
chartView = page.CreateChart("Chart")

chartView.Legend.Background = Colors.Red
chartView.Legend.FontColor = Colors.Black
chartView.Legend.FontFace = FontFamily("Arial")
chartView.Legend.FontSize = 15
chartView.Legend.FontStyle = OperationAPIService.GetFontStyleFromString("Italic")
chartView.Legend.FontWeight = OperationAPIService.GetFontWeightFromString("Bold")
chartView.Legend.LegendPlacement = LegendPlacementType.Bottom
chartView.Legend.ItemsInFilter = "Visible Curves"

# Close the Pages
page.Close()

# Close the Document
applicationHandler.CloseDocument(result_file_path)

```

## Properties

### <a id="VM_Operations_Post_Interfaces_IOperationsLegendModifier_Background"></a> Background

Gets or sets the background color of the legend.

```csharp
Color Background { get; set; }

```

#### Property Value

Color

#### Examples

For an example that includes this property, see the [Interface IOperationsLegendModifier](VM.Operations.Post.Interfaces.IOperationsLegendModifier.md).

#### Remarks

This property allows you to set the background color of the legend. In the UI, this property is represented under the "Font" category with the property name "Background".

### <a id="VM_Operations_Post_Interfaces_IOperationsLegendModifier_FontColor"></a> FontColor

Gets or sets the font color of the legend.

```csharp
Color FontColor { get; set; }

```

#### Property Value

Color

#### Examples

For an example that includes this property, see the [Interface IOperationsLegendModifier](VM.Operations.Post.Interfaces.IOperationsLegendModifier.md).

#### Remarks

This property allows you to set the font color of the legend. In the UI, this property is represented under the "Font" category with the property name "Color".

### <a id="VM_Operations_Post_Interfaces_IOperationsLegendModifier_FontFace"></a> FontFace

Gets or sets the font face of the chart title.

```csharp
FontFamily FontFace { get; set; }

```

#### Property Value

FontFamily

#### Examples

For an example that includes this property, see the [Interface IOperationsLegendModifier](VM.Operations.Post.Interfaces.IOperationsLegendModifier.md).

#### Remarks

This property allows you to set the font face of the chart title. In the UI, this property is represented under the "Font" category with the property name "Face".

### <a id="VM_Operations_Post_Interfaces_IOperationsLegendModifier_FontSize"></a> FontSize

Gets or sets the font size of the chart title.

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

```

#### Property Value

double

#### Examples

For an example that includes this property, see the [Interface IOperationsLegendModifier](VM.Operations.Post.Interfaces.IOperationsLegendModifier.md).

#### Remarks

This property allows you to set the font size of the chart title. In the UI, this property is represented under the "Font" category with the property name "Size".

### <a id="VM_Operations_Post_Interfaces_IOperationsLegendModifier_FontStyle"></a> FontStyle

Gets or sets the font style of the chart title.

```csharp
FontStyle FontStyle { get; set; }

```

#### Property Value

FontStyle

#### Examples

For an example that includes this property, see the [Interface IOperationsLegendModifier](VM.Operations.Post.Interfaces.IOperationsLegendModifier.md).

#### Remarks

This property allows you to set the font style of the chart title. In the UI, this property is represented under the "Font" category with the property name "Style". The supported types are:

- 
- 
- 

### <a id="VM_Operations_Post_Interfaces_IOperationsLegendModifier_FontWeight"></a> FontWeight

Gets or sets the font weight of the chart title.

```csharp
FontWeight FontWeight { get; set; }

```

#### Property Value

FontWeight

#### Examples

For an example that includes this property, see the [Interface IOperationsLegendModifier](VM.Operations.Post.Interfaces.IOperationsLegendModifier.md).

#### Remarks

This property allows you to set the font weight of the chart title. In the UI, this property is represented under the "Font" category with the property name "Weight". The available options are:

- 
- 

### <a id="VM_Operations_Post_Interfaces_IOperationsLegendModifier_ItemsInFilter"></a> ItemsInFilter

Gets or sets the filter option for displaying curves in the chart.

```csharp
string ItemsInFilter { get; set; }

```

#### Property Value

string

#### Examples

For an example that includes this property, see the [Interface IOperationsLegendModifier](VM.Operations.Post.Interfaces.IOperationsLegendModifier.md).

#### Remarks

The ItemsInFilter property allows you to control which curves are shown in the chart. By specifying either AllSeries or AllVisibleSeries, you can choose to display all curves or only the visible ones. The available options are:

- "All Curves"
- "Visible Curves"

### <a id="VM_Operations_Post_Interfaces_IOperationsLegendModifier_LegendPlacement"></a> LegendPlacement

Gets or sets the position of the legend in the chart.

```csharp
LegendPlacementType LegendPlacement { get; set; }

```

#### Property Value

LegendPlacementType

#### Examples

For an example that includes this property, see the [Interface IOperationsLegendModifier](VM.Operations.Post.Interfaces.IOperationsLegendModifier.md).

#### Remarks

Use this property to control the placement of the legend within or outside the chart area. By default, the legend is placed inside the chart area. The placement can be adjusted to improve the visibility and layout of the chart.