---
id: "T:cAlgo.API.ChartFibonacciBase"
kind: "interface"
namespace: "cAlgo.API"
url: "https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/Fibonacci/ChartFibonacciBase/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# ChartFibonacciBase (interface)

Represents the Fibonacci tools options.

Environments: Desktop supported · CLI works differently · Cloud works differently.

- CLI: Created and kept with all its properties, but never drawn: the CLI displays no chart.
- Cloud: Created and kept with all its properties, but never drawn: the cloud displays no chart.

## Definition

```csharp
public interface ChartFibonacciBase
```

## Examples

C#:

```csharp
ChartFibonacciBase fibonacci = Chart.DrawFibonacciRetracement("retracement", Bars.OpenTimes.Last(50), Bars.HighPrices.Last(50), Bars.OpenTimes.LastValue, Bars.LowPrices.LastValue, Color.Red);
fibonacci.DisplayPrices = true;
fibonacci.LineStyle = LineStyle.Dots;
Print("Fibonacci levels: {0}", fibonacci.FibonacciLevels.Count);
```

Python:

```python
fibonacci = api.Chart.DrawFibonacciRetracement("retracement", api.Bars.OpenTimes.Last(50), api.Bars.HighPrices.Last(50), api.Bars.OpenTimes.LastValue, api.Bars.LowPrices.LastValue, Color.Red)
fibonacci.DisplayPrices = True
fibonacci.LineStyle = LineStyle.Dots
api.Print(f"Fibonacci levels: {fibonacci.FibonacciLevels.Count}")
```

## Properties

- `Color Color {get; set;}` — Gets or sets the lines color. [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/Fibonacci/ChartFibonacciBase/Color/index.md)
- `bool DisplayPrices {get; set;}` — Defines if the Fibonacci levels display the prices [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/Fibonacci/ChartFibonacciBase/DisplayPrices/index.md)
- `IReadonlyList<FibonacciLevel> FibonacciLevels {get;}` — Gets the Fibonacci levels. [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/Fibonacci/ChartFibonacciBase/FibonacciLevels/index.md)
- `LineStyle LineStyle {get; set;}` — Gets or sets the lines style. [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/Fibonacci/ChartFibonacciBase/LineStyle/index.md)
- `int Thickness {get; set;}` — Gets or sets the lines thickness. [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/Fibonacci/ChartFibonacciBase/Thickness/index.md)

## Inherited members

- `string Name {get;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/Name/index.md)
- `string Comment {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/Comment/index.md)
- `ChartObjectType ObjectType {get;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/ObjectType/index.md)
- `bool IsInteractive {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/IsInteractive/index.md)
- `bool IsLocked {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/IsLocked/index.md)
- `bool IsHidden {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/IsHidden/index.md)
- `int ZIndex {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/ZIndex/index.md)
- `bool IsAlive {get;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/IsAlive/index.md)