private void frmImage_Load(object sender, EventArgs e)
{
//读取相关数据元素的值，并设置窗体、窗宽、窗位
this.Width = items[DicomTags.Columns].ReadValue <ushort>()[0];
this.Height = items[DicomTags.Rows].ReadValue <ushort>()[0];
tsWindow.Text = items[DicomTags.WindowWidth].ReadValue <string>()[0];
tsLevel.Text = items[DicomTags.WindowCenter].ReadValue <string>()[0];
//获取图像像素IOM各数据元素的值
ushort bs = items[DicomTags.BitsStored].ReadValue <ushort>()[0];
ushort hb = items[DicomTags.HighBit].ReadValue <ushort>()[0];
if (items[DicomTags.BitsAllocated].ReadValue <ushort>()[0] == 16) //OW
{
OW ow = new OW(items[DicomTags.PixelData].vrparser.syntax);
items[DicomTags.PixelData].vrparser = ow;
owpixels = items[DicomTags.PixelData].ReadValue <short>();
for (int i = 0; i < owpixels.Length; i++)
{
//BitsAllocated右位移至最低位
owpixels[i] = (short)(owpixels[i] >> (hb - (bs - 1)));
//逐像素单元转换处理得到像素值，放入owpixels
}
}
else
{
OB ob = new OB(items[DicomTags.PixelData].vrparser.syntax);
items[DicomTags.PixelData].vrparser = ob;
obpixels = items[DicomTags.PixelData].ReadValue <byte>();
for (int i = 0; i < obpixels.Length; i++)
{
//BitsAllocated右位移至最低位
obpixels[i] = (byte)(obpixels[i] >> (hb - (bs - 1)));
//逐像素单元转换处理得到像素值，放入obpixels
}
}
}
public VR GetVR(string key)
{
//如果对象存在，则直接从享元池获取
if (VRs.ContainsKey(key))
{
return((VR)VRs[key]);
}
//如果对象不存在，先创建一个新的对象添加到享元池中，然后返回
else
{
VR fw = null;
switch (key)
{
case "SS": fw = new SS(isBE, false); break;
case "US": fw = new US(isBE); break;
case "SL": fw = new SL(isBE, false); break;
case "UL": fw = new UL(isBE, false); break;
case "FL": fw = new FL(isBE, false); break;
case "FD": fw = new FD(isBE, false); break;
case "DA": fw = new DA(isBE, false); break;
case "TM": fw = new TM(isBE, false); break;
case "DT": fw = new DT(isBE, false); break;
case "AS": fw = new AS(isBE, false); break;
case "OB": fw = new OB(isBE); break;
case "OF": fw = new OF(isBE, true); break;
case "OW": fw = new OW(isBE); break;
case "SQ": fw = new SQ(isBE, true); break;
case "LO": fw = new LO(isBE, true); break;
case "UI": fw = new UI(isBE, true); break;
case "SH": fw = new SH(isBE, true); break;
case "AE": fw = new AE(isBE, true); break;
case "CS": fw = new CS(isBE, true); break;
case "PN": fw = new PN(isBE, true); break;
case "DS": fw = new DS(isBE); break;
case "IS": fw = new IS(isBE, true); break;
//default for text
//default: fw = new ST(isBE, false); break;
}
VRs.Add(key, fw);
return(fw);
}
}
public void Stop()
{
OWThread.Abort();
OW.Abort();
}
