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unity > LineRendererで1本の線を描く

Last updated at Posted at 2015-08-02
Unity 5.1.2 on MacOS X

LineRendererでグラフを描画したい。
第一歩として、1本の線を描く。

Main Cameraに以下のスクリプトを関連づける。
(LR: LineRenderer)

GenerateLR.cs
using UnityEngine;
using System.Collections;

public class GenerateLR : MonoBehaviour {

	void Start () {
		GameObject newLine = new GameObject ("Line");
		LineRenderer lRend = newLine.AddComponent<LineRenderer> ();
		lRend.SetVertexCount(2);
		lRend.SetWidth (0.2f, 0.2f);
		Vector3 startVec = new Vector3 (0.0f, 0.0f, 0.0f);
		Vector3 endVec = new Vector3 (5.0f, 5.0f, 0.0f);
		lRend.SetPosition (0, startVec);
		lRend.SetPosition (1, endVec);
	}
	
	void Update () {
	
	}
}

成果はこちら。

Untitled_-150802_lineRenderer-PC__Mac___Linux_Standalone__Personal.jpg

同じことをListを使って実装したもの

using UnityEngine;
using System.Collections;
using System.Collections.Generic; // for List<>

public class GenerateLR : MonoBehaviour {

	void Start () {
		List<Vector3> myPoint = new List<Vector3>();
		myPoint.Add (new Vector3 (0.0f, 0.0f, 0.0f));	
		myPoint.Add (new Vector3 (5.0f, 5.0f, 0.0f));

		GameObject newLine = new GameObject ("Line");
		LineRenderer lRend = newLine.AddComponent<LineRenderer> ();
		lRend.SetVertexCount(2);
		lRend.SetWidth (0.2f, 0.2f);
		Vector3 startVec = myPoint[0];
		Vector3 endVec = myPoint [1];
		lRend.SetPosition (0, startVec);
		lRend.SetPosition (1, endVec);
	}
	
	void Update () {
	
	}
}
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