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Handles.DrawDottedLine

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public static void DrawDottedLine(Vector3 p1, Vector3 p2, float screenSpaceSize);

Parameters

p1 The start point.
p2 The end point.
screenSpaceSize The size in pixels for the lengths of the line segments and the gaps between them.

Description

Draw a dotted line from p1 to p2.


Draw Line in the Scene View.

// Draw lines to the connected game objects that a script has.
// if the target object doesnt have any game objects attached
// then it draws a line from the object to 0,0,0.

using UnityEditor;
using UnityEngine;

[CustomEditor(typeof(ConnectedObjectsExample))]
class ConnectLineHandleExample : Editor
{
    float dashSize = 4.0f;
    void OnSceneGUI()
    {
        ConnectedObjectsExample connectedObjects = target as ConnectedObjectsExample;
        if (connectedObjects.objs == null)
            return;

        Vector3 center = connectedObjects.transform.position;
        for (int i = 0; i < connectedObjects.objs.Length; i++)
        {
            GameObject connectedObject = connectedObjects.objs[i];
            if (connectedObject)
            {
                Handles.DrawDottedLine(center, connectedObject.transform.position, dashSize);
            }
            else
            {
                Handles.DrawDottedLine(center, Vector3.zero, dashSize);
            }
        }
    }
}

And the script attached to this Handle:

using UnityEngine;
using System.Collections;
public class ConnectedObjectsExample : MonoBehaviour
{
    public GameObject[] objs = null;
}
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