http://blog.csdn.net/awnuxcvbn/article/details/9199245
效果
代码
[csharp] view plaincopy
- <pre name="code" class="csharp">using UnityEngine;
- using System.Collections;
- using System.IO;
- public class CropPicture : MonoBehaviour
- {
- string localPath = "http://192.168.1.100:8080/picture/15.jpg";
- Texture2D image;
- Texture2D cutImage;
- WWW www;
- Rect rect;
- float time;
- Vector2 pos1;
- Vector2 pos2;
- // Use this for initialization
- void Start()
- {
- StartCoroutine(LoadImage());
- }
- // Update is called once per frame
- void Update()
- {
- //点击鼠标左键,记录第一个位置
- if (Input.GetMouseButtonDown(0))
- {
- pos1 = Input.mousePosition;
- time = Time.time;
- if (time > 1f)
- {
- Debug.Log(pos1);
- }
- }
- //放开左键记录第二个位置
- if (Input.GetMouseButtonUp(0))
- {
- pos2 = Input.mousePosition;
- Debug.Log(pos2);
- StartCoroutine(CutImage());
- time = 0;
- }
- }
- void OnGUI()
- {
- //当下载完成
- if (www.isDone)
- {
- GUI.DrawTexture(new Rect(0, 0, 600, 904), image);
- }
- GUI.Button(new Rect(0, 0, 100, 50), "W" + Screen.width + "H" + Screen.height);
- if (pos1 != null)
- {
- GUI.Button(new Rect(0, 50, 150, 50), pos1.ToString());
- }
- if (pos2 != null)
- {
- GUI.Button(new Rect(0, 100, 150, 50), pos2.ToString());
- }
- if (cutImage != null)
- {
- GUI.Button(new Rect(0, 150, 150, 50), "image W" + cutImage.width + "H" + cutImage.height);
- }
- if (rect != null)
- {
- GUI.Button(new Rect(0, 200, 250, 50), rect.ToString());
- }
- }
- //下载图片
- IEnumerator LoadImage()
- {
- www = new WWW(localPath);
- yield return www;
- image = www.texture;
- if (www.error != null)
- {
- Debug.Log(www.error);
- }
- }
- //截图
- IEnumerator CutImage()
- {
- //图片大小
- cutImage = new Texture2D((int)(pos2.x - pos1.x), (int)(pos1.y - pos2.y), TextureFormat.RGB24, true);
- //坐标左下角为0
- rect = new Rect((int)pos1.x, Screen.height - (int)(Screen.height - pos2.y), (int)(pos2.x - pos1.x), (int)(pos1.y - pos2.y));
- yield return new WaitForEndOfFrame();
- cutImage.ReadPixels(rect, 0, 0, true);
- cutImage.Apply();
- yield return cutImage;
- byte[] byt = cutImage.EncodeToPNG();
- //保存截图
- File.WriteAllBytes(Application.streamingAssetsPath + "/CutImage.png", byt);
- }
- }
时间: 2024-10-09 12:07:53