public void loaded_Image()
{
Console.WriteLine("ltbufffer的大小 " + ltBuffer.Count);
if (ltBuffer.Count>640)
{
//System.Windows.MessageBox.Show("show");
Bitmap b = new Bitmap(16, 40);
MemoryStream m = new MemoryStream(); //緩衝區
//鎖定位圖
BitmapData bbb = b.LockBits(new System.Drawing.Rectangle(0, 0, b.Width, b.Height), ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
IntPtr ptr = bbb.Scan0; //找到位圖首地址
byte[] byteData = new byte[b.Width * b.Height * 3];//存放位圖
System.Runtime.InteropServices.Marshal.Copy(ptr, byteData, 0, b.Width * b.Height * 3); //給RGB賦值
Console.WriteLine("get_strData 的大小：" + get_strData.Length + "----" + ltBuffer.Count);//錯誤異常的原因，ltbuffer的大小還沒有獲取到
for (int i = 16 * 40 - 1; i >= 0; i--)
{
double dscal;
//加一個短路判斷
//在循環的時候，過濾掉T 替換掉t
if (ltBuffer[40 * 16 - 1 - i].ToString() == "T" || ltBuffer[40 * 16 - 1 - i].ToString() == "Z" || ltBuffer[40 * 16 - 1 - i].ToString() == "S" )
{
continue;
}/* double.TryParse(ltBuffer[639 - i], out num);*/
try
{
// if (ltBuffer[16 * 40 - 1 - i].Contains("T")) ltBuffer[16 * 40 - 1 - i] = "84";
if (double.Parse(ltBuffer[16 * 40 - 1 - i]) > 145)
{
dscal = 1;
}
else
{
if (double.Parse(ltBuffer[16 * 40 - 1 - i]) < 16)
{
dscal = 0;
}
else
{
dscal = (double.Parse(ltBuffer[16 * 40 - 1 - i]) - 16) / 255.0;
}
}
if (dscal > 1)
{
dscal = 1;
}
byteData[i * 3 + 0] = (byte)(255 - 255 * dscal);//B
byteData[i * 3 + 1] = (byte)(255 - 255 * dscal);//G
byteData[i * 3 + 2] = (byte)(255 - 255 * dscal);//R
}
catch
{
System.Windows.MessageBox.Show("image_picture2 : "+ltBuffer[16 * 40 - 1 - i] + " "+(639-i));
Console.WriteLine();
}
}
// 放回位圖
System.Runtime.InteropServices.Marshal.Copy(byteData, 0, ptr, b.Width * b.Height * 3);
//釋放位圖
b.UnlockBits(bbb);
//保存位圖
b.Save(m, ImageFormat.Bmp);
RotateTransform rotateTransform = new RotateTransform(180, 80, 200);//180度
#region 11 可用 OK 方法一：
//MemoryStream ms = new MemoryStream();
//b.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
//BitmapImage bitmapImage = new BitmapImage();
//bitmapImage.BeginInit();
//bitmapImage.StreamSource = new MemoryStream(ms.ToArray());
//bitmapImage.EndInit();
////以下代碼，進行位圖的顯示操作 ，
//System.Drawing.Image bba = System.Drawing.Image.FromStream(m);
//image1.Source = bitmapImage;//將圖片顯示到Image控件上
#endregion
#region 22 可用 OK 方法二
//System.Drawing.Image bbc = System.Drawing.Image.FromStream(m);
//System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(bbc);
//IntPtr hBitmap = bmp.GetHbitmap();
//System.Windows.Media.ImageSource WpfBitmap = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(hBitmap, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
//this.Dispatcher.Invoke(new Action(delegate
//{
// //這裏寫代碼
// this.image1.Source = WpfBitmap;
//}));
#endregion
#region 44 可用 OK 方法三
Bitmap bitmap = b;
IntPtr ip = bitmap.GetHbitmap();//從GDI+ Bitmap創建GDI位圖對象
System.Windows.Media.Imaging.BitmapSource bitmapSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(ip, IntPtr.Zero, Int32Rect.Empty,
System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());
this.Dispatcher.Invoke(new Action(delegate
{
//這裏寫代碼
image1.Source = bitmapSource;
}));
#endregion
#region 33 可用 OK 也可以用
// System.Drawing.Image bmp = System.Drawing.Image.FromStream(m);
// System.IO.MemoryStream ms = new System.IO.MemoryStream();
// bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
// System.Windows.Media.Imaging.BitmapImage bi = new System.Windows.Media.Imaging.BitmapImage();
// bi.BeginInit();
// bi.StreamSource = new MemoryStream(ms.ToArray());
// bi.EndInit();
//// Visual.VisualYSnappingGuidelines = "true";
// this.Dispatcher.Invoke(new Action(delegate
// {
// //這裏寫代碼
// image1.Source = bi;
// }));
SetValue(RenderOptions.BitmapScalingModeProperty, BitmapScalingMode.HighQuality);
image1.RenderTransform = rotateTransform;//圖片控件旋轉
//image1.RenderSize = new System.Windows.Size(16,40);
// ms.Close();
Console.WriteLine("+++++++++++++++++++++++++++++我是繪製圖像，我應該發生在獲取數據之後");
#endregion
Console.WriteLine("+++++++++++++++++++++++++++++over");
#region 55 有點問題，stream 處參數無效化
// image1.Source = BitmapToBitmapImage(AddHeader(StreamToBytes(m)));
// image1.Source = BitmapToBitmapImage(AddHeader(byteData));
#endregion
ltBuffer.Clear();
change_loaded = true;
}
//else if (ltBuffer.Count > 640)
//{
// Console.WriteLine("我被清理了");
// ltBuffer.Clear();
//}
#endregion
}
public Bitmap AddHeader(byte[] imageDataDetails)
{
Bitmap bitmap = null;
int length = imageDataDetails.GetLength(0);
using (MemoryStream stream = new MemoryStream(length + 14))//爲頭騰出14個長度的空間
{
byte[] buffer = new byte[13];
buffer[0] = 0x42;//Bitmap 固定常數
buffer[1] = 0x4d;//Bitmap 固定常數
stream.Write(buffer, 0, 2);//先寫入頭的前兩個字節
//把我們之前獲得的數據流的長度轉換成字節,
//這個是用來告訴“頭”我們的實際圖像數據有多大
byte[] bytes = BitConverter.GetBytes(length);
stream.Write(bytes, 0, 4);//把這個長度寫入頭中去
buffer[0] = 0;
buffer[1] = 0;
buffer[2] = 0;
buffer[3] = 0;
stream.Write(buffer, 0, 4);//在寫入4個字節長度的數據到頭中去
int num2 = 0x36;//Bitmap 固定常數
bytes = BitConverter.GetBytes(num2);
stream.Write(bytes, 0, 4);//在寫入最後4個字節的長度
stream.GetBuffer();
stream.Write(imageDataDetails, 0, length);//把實際的圖像數據全部追加到頭的後面
bitmap = new Bitmap(stream);//用內存流構造出一幅bitmap的圖片
bitmap.RotateFlip(RotateFlipType.Rotate180FlipX);
stream.Close();
return bitmap;//最後就得到了我們想要的圖片了
}
}
private BitmapImage BitmapToBitmapImage(System.Drawing.Bitmap bitmap)
{
BitmapImage bitmapImage = new BitmapImage();
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
bitmap.Save(ms, bitmap.RawFormat);
bitmapImage.BeginInit();
bitmapImage.StreamSource = ms;
bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
bitmapImage.EndInit();
bitmapImage.Freeze();
}
return bitmapImage;
}
public byte[] StreamToBytes(Stream stream)
{
byte[] bytes = new byte[stream.Length];
stream.Read(bytes, 0, bytes.Length);
// 設置當前流的位置爲流的開始
stream.Seek(0, SeekOrigin.Begin);
return bytes;
}
//獲取到數據流的數據，將之轉換爲相應的圖片
public static BitmapImage ByteArrayToBitmapImage(byte[] byteArray)
{
BitmapImage bmp = null;
try
{
bmp = new BitmapImage();
bmp.BeginInit();
bmp.StreamSource = new MemoryStream(byteArray);
bmp.EndInit();
}
catch
{
bmp = null;
}
return bmp;
}