# Simplify(float)

> Generates a simplified version of the original line by removing points that fall within the specified tolerance.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public void Simplify(float tolerance)
```

### Parameters

**** (\[float]\(https\://learn.microsoft.com/dotnet/api/system.single)): This value is used to evaluate which points should be removed from the line. A higher value results in a simpler line (less points). A positive value close to zero results in a line with little to no reduction. A value of zero or less has no effect.

### Remarks

Uses [LineUtility.Simplify](/engine/6000.6/script-reference/unityengine/lineutility/simplify.md) to perform the line simplification.

This example shows how an existing line can be simplified:

```csharp
using UnityEngine;

// This example shows how to apply line simplification to a line that already contains points.
[RequireComponent(typeof(LineRenderer))]
public class SimpleExampleLineRenderer : MonoBehaviour
{
    public float tolerance = 1;
    void Start()
    {
        var lineRenderer = GetComponent<LineRenderer>();
        int pointsBefore = lineRenderer.positionCount;
        lineRenderer.Simplify(tolerance);
        Debug.Log("Line reduced from " + pointsBefore + " to " + lineRenderer.positionCount);
    }
}
```

**This example generates a line in the shape of a sine wave and provides a GUI for customizing the line generation and simplification parameters.**

```csharp
using System.Collections.Generic;
using UnityEngine;

// This example creates a sine wave and then simplifies it using LineRenderer.Simplify.
// The parameters can be adjusted through an in game GUI to allow for experimentation.
[RequireComponent(typeof(LineRenderer))]
public class LineRendererExample : MonoBehaviour
{
    public int numberOfPoints = 1000;
    public float length = 50;
    public float waveHeight = 10;
    public float tolerance = 0.1f;

    private LineRenderer lineRenderer;
    private List<Vector3> points = new List<Vector3>(); // Generated points before Simplify is used.

    public void Start()
    {
        lineRenderer = GetComponent<LineRenderer>();
        GeneratePoints();
    }

    // Generates the sine wave points.
    public void GeneratePoints()
    {
        points.Clear();
        float halfWaveHeight = waveHeight * 0.5f;
        float step = length / numberOfPoints;
        for (int i = 0; i < numberOfPoints; ++i)
        {
            points.Add(new Vector3(i * step, Mathf.Sin(i * step) * halfWaveHeight, 0));
        }
        lineRenderer.SetPositions(points.ToArray());
    }

    // Draw a simple GUI slider with a label.
    private static float GUISlider(string label, float value, float min, float max)
    {
        GUILayout.BeginHorizontal(GUILayout.Width(Screen.width / 2.0f));
        GUILayout.Label(label + "(" + value + ") :", GUILayout.Width(150));
        var val = GUILayout.HorizontalSlider(value, min, max);
        GUILayout.EndHorizontal();
        return val;
    }

    public void OnGUI()
    {
        GUILayout.Label("LineRenderer.Simplify", GUI.skin.box);

        // We use GUI.changed to detect if a value was changed via the GUI, if it has we can then re-generate the points and simplify the line again.
        GUI.changed = false;

        numberOfPoints = (int)GUISlider("Number of Points", numberOfPoints, 0, 1000);
        length = GUISlider("Length", length, 0, 100);
        waveHeight = GUISlider("Wave Height", waveHeight, 0, 100);
        if (GUI.changed)
            GeneratePoints();

        tolerance = GUISlider("Simplify Tolerance", tolerance, 0, 2);
        if (GUI.changed)
            lineRenderer.Simplify(tolerance);

        float percentRemoved = 100.0f - ((float)lineRenderer.positionCount / numberOfPoints) * 100.0f;
        if (tolerance > 0.0f)
            GUILayout.Label("Points after simplification: " + lineRenderer.positionCount + "(Removed " + percentRemoved.ToString("##.##") + "%)");
    }
}
```