Example.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Example : MonoBehaviour
{

	// Use this for initialization
	void Start ()
	{

	}

	// Update is called once per frame
	void Update ()
	{

	}

	// ギズモをレンダリングするときに呼ばれるメソッド
	void OnDrawGizmos ()
	{
		Vector3 o = new Vector3 (0.0f, 0.0f, 0.0f);
		float r = 0.1f;
		Vector3 v1 = new Vector3 (1.0f, 0.5f, 0.0f);
		Vector3 v2 = new Vector3 (0.5f, 2.0f, 0.0f);
		Vector3 v3 = v1 + v2;
		Vector3 v4 = v1 - v2;
		Gizmos.color = new Color (1.0f, 0.0f, 0.0f);
		Gizmos.DrawLine (o, v1);
		Gizmos.DrawWireSphere (v1, r);
		Gizmos.color = new Color (0.0f, 1.0f, 0.0f);
		Gizmos.DrawLine (o, v2);
		Gizmos.DrawWireSphere (v2, r);
		Gizmos.DrawLine (v1, v1 + v2);
		Gizmos.color = new Color (1.0f, 1.0f, 0.0f);
		Gizmos.DrawLine (o, v3);
		Gizmos.DrawWireSphere (v3, r);
		Gizmos.color = new Color (1.0f, 0.0f, 1.0f);
		Gizmos.DrawLine (o, v4);
		Gizmos.DrawWireSphere (v4, r);
		Gizmos.DrawLine (v2, v2 + v4);
	}
}