/// <summary>
/// 返回dxf文件里包含的路径信息
/// </summary>
/// <param name="dxfPath"></param>
/// <returns></returns>
public DxfdecoderDef.Path[] getPaths()
{
int pathCount = 0; //路径统计
int polyLineN = 0; //多段线的段数
bool inSection = false; //当前指针在Entities段
bool polyLineNReaded = false; //已经读取到polyline的段数
bool isClosed = false; //多段线是否闭合
bool isClosedReaded = false; //是否读到是否闭合属性
bool inPathLine = false, inPathPolyLine = false, inPathCircle = false, inPathArc = false; //当前所在的多段线类型
string lineText = "";
DxfdecoderDef.Path[] paths = new DxfdecoderDef.Path[10000]; //预留的路经集合
for (int i = 0; i < 10000; i++)
{
paths[i] = new DxfdecoderDef.Path();
}
StreamReader sr = new StreamReader(dxfPath, Encoding.ASCII);
do
{
lineText = sr.ReadLine();
if (lineText == "ENTITIES")
{
inSection = true;
}
if (inSection == true && lineText == "AcDbLine")
{
inPathLine = true; inPathArc = false; inPathCircle = false; inPathPolyLine = false;
}
if (inSection == true && lineText == "AcDbPolyline")
{
inPathLine = false; inPathArc = false; inPathCircle = false; inPathPolyLine = true;
polyLineN = 0;
isClosed = false;
isClosedReaded = false;
polyLineNReaded = false;
}
if (inSection == true && lineText == "AcDbCircle")
{
inPathLine = false; inPathArc = false; inPathCircle = true; inPathPolyLine = false;
}
if (inSection == true && lineText == "AcDbArc")
{
inPathLine = false; inPathArc = true; inPathCircle = false; inPathPolyLine = false;
}
if (inPathLine == true)
{
paths[pathCount].Type = LineType.Line;
if (lineText == " 10")
{
paths[pathCount].StartPoint.X = Convert.ToDouble(sr.ReadLine());
}
if (lineText == " 20")
{
paths[pathCount].StartPoint.Y = Convert.ToDouble(sr.ReadLine());
}
if (lineText == " 11")
{
paths[pathCount].EndPoint.X = Convert.ToDouble(sr.ReadLine());
}
if (lineText == " 21")
{
paths[pathCount].EndPoint.Y = Convert.ToDouble(sr.ReadLine());
pathCount++;
inPathLine = false;
}
}
if (inPathPolyLine == true)
{
if (lineText == " 90")
{
polyLineN = Convert.ToInt32(sr.ReadLine());
polyLineNReaded = true;
}
if (lineText == " 70")
{
if (Convert.ToInt32(sr.ReadLine()) == 1)
{
isClosed = true;
}
else
{
isClosed = false;
}
isClosedReaded = true;
}
if (polyLineNReaded == true && isClosedReaded == true)
{
int i = 0;
do
{
if (i == 0 && lineText == " 10")
{
paths[pathCount].Type = LineType.Line;
lineText = sr.ReadLine();
paths[pathCount].StartPoint.X = Convert.ToDouble(lineText);
}
if (i == 0 && lineText == " 20")
{
lineText = sr.ReadLine();
paths[pathCount].StartPoint.Y = Convert.ToDouble(lineText);
i++;
lineText = sr.ReadLine();
}
if (i == 1 && lineText == " 10")
{
lineText = sr.ReadLine();
paths[pathCount].EndPoint.X = Convert.ToDouble(lineText);
}
if (i == 1 && lineText == " 20")
{
lineText = sr.ReadLine();
paths[pathCount].EndPoint.Y = Convert.ToDouble(lineText);
i++;
pathCount++;
}
if (i > 1 && lineText == " 10")
{
lineText = sr.ReadLine();
paths[pathCount].StartPoint.X = paths[pathCount - 1].EndPoint.X;
paths[pathCount].EndPoint.X = Convert.ToDouble(lineText);
}
if (i > 1 && lineText == " 20")
{
lineText = sr.ReadLine();
paths[pathCount].StartPoint.Y = paths[pathCount - 1].EndPoint.Y;
paths[pathCount].EndPoint.Y = Convert.ToDouble(lineText);
i++;
pathCount++;
if (isClosed == true && i == polyLineN)
{
paths[pathCount].StartPoint.X = paths[pathCount - 1].EndPoint.X;
paths[pathCount].StartPoint.Y = paths[pathCount - 1].EndPoint.Y;
paths[pathCount].EndPoint.X = paths[pathCount - polyLineN + 1].StartPoint.X;
paths[pathCount].EndPoint.Y = paths[pathCount - polyLineN + 1].StartPoint.Y;
pathCount++;
}
}
lineText = sr.ReadLine();
} while (!(i == polyLineN));
inPathPolyLine = false;
}
}
if (inPathCircle == true)
{
paths[pathCount].Type = LineType.Circle;
if (lineText == " 10")
{
paths[pathCount].CentrePoint.X = Convert.ToDouble(sr.ReadLine());
}
if (lineText == " 20")
{
paths[pathCount].CentrePoint.Y = Convert.ToDouble(sr.ReadLine());
}
if (lineText == " 40")
{
paths[pathCount].Radium = Convert.ToDouble(sr.ReadLine());
pathCount++;
inPathCircle = false;
}
}
if (inPathArc == true)
{
paths[pathCount - 1].Type = LineType.Arc;
if (lineText == " 50")
{
paths[pathCount - 1].StartAngle = Convert.ToDouble(sr.ReadLine());
}
if (lineText == " 51")
{
paths[pathCount - 1].EndAngle = Convert.ToDouble(sr.ReadLine());
inPathArc = false;
}
}
} while (!(inSection == true && lineText == "ENDSEC" || lineText == null));
DxfdecoderDef.Path[] paths1 = new DxfdecoderDef.Path[pathCount];
Array.Copy(paths, 0, paths1, 0, paths1.Length);
return(paths1);
}
/// <summary>
/// 生成按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
GfilePath = textBox1.Text;
GfileName = textBox7.Text + ".nc";
if (GfileName == "" || GfilePath == "")
{
MessageBox.Show("请输入正确的路径或者文件名！");
return;
}
StreamWriter sw1 = new StreamWriter(GfilePath + @"\" + GfileName, false, Encoding.UTF8);
DxfdecoderDef.Path[] pathTem = new DxfdecoderDef.Path[pathcopy.Length];
for (int i = 0; i < pathcopy.Length; i++) //复制路径的拷贝，用作处理
{
pathTem[i] = pathcopy[i].Clone();
}
double[] limit = getLimit(pathTem); //读取路径的边界，用来计算缩放因子
if (bLength / (limit[1] - limit[0]) > bWidth / (limit[3] - limit[2]))
{
scalePara = bWidth / (limit[3] - limit[2]);
}
else
{
scalePara = bLength / (limit[1] - limit[0]);
}
scale(pathTem, scalePara * scalePer / 100); //进行缩放
limit = getLimit(pathTem); //读取缩放后的边界，用作图像平移
//偏移
bias(pathTem, 0 - (limit[0] + limit[1]) / 2, 0 - (limit[2] + limit[3]) / 2);
sw1.WriteLine("G00 X0.000 Y0.000 Z" + dHeight.ToString("0.000"));
for (int i = 0; i < pathTem.Length; i++)
{
if (pathTem[i].Type == LineType.Arc)
{
DxfdecoderDef.Point[] ArcTeminal = pathTem[i].GetArcTeminal();
sw1.WriteLine("G00 X" + ArcTeminal[0].X.ToString("0.000") + " Y" + ArcTeminal[0].Y.ToString("0.000") + " Z" + dHeight.ToString("0.000"));
sw1.WriteLine("G00 X" + ArcTeminal[0].X.ToString("0.000") + " Y" + ArcTeminal[0].Y.ToString("0.000") + " Z" + dDeepth.ToString("0.000"));
sw1.WriteLine("G03 G17 X" + ArcTeminal[1].X.ToString("0.000") + " Y" + ArcTeminal[1].Y.ToString("0.000") + " R" + pathTem[i].Radium.ToString("0.000"));
sw1.WriteLine("G00 X" + ArcTeminal[1].X.ToString("0.000") + " Y" + ArcTeminal[1].Y.ToString("0.000") + " Z" + dHeight.ToString("0.000"));
}
if (pathTem[i].Type == LineType.Circle)
{
double onePointX = pathTem[i].CentrePoint.X, onePointY = pathTem[i].CentrePoint.Y - pathTem[i].Radium;
sw1.WriteLine("G00 X" + onePointX.ToString("0.000") + " Y" + onePointY.ToString("0.000") + " Z" + dHeight.ToString("0.000"));
sw1.WriteLine("G00 X" + onePointX.ToString("0.000") + " Y" + onePointY.ToString("0.000") + " Z" + dDeepth.ToString("0.000"));
sw1.WriteLine("G03 G17 X" + onePointX.ToString("0.000") + " Y" + onePointY.ToString("0.000") + " R" + pathTem[i].Radium.ToString("0.000"));
sw1.WriteLine("G00 X" + onePointX.ToString("0.000") + " Y" + onePointY.ToString("0.000") + " Z" + dHeight.ToString("0.000"));
}
if (pathTem[i].Type == LineType.Line)
{
sw1.WriteLine("G00 X" + pathTem[i].StartPoint.X.ToString("0.000") + " Y" + pathTem[i].StartPoint.Y.ToString("0.000") + " Z" + dHeight.ToString("0.000"));
sw1.WriteLine("G00 X" + pathTem[i].StartPoint.X.ToString("0.000") + " Y" + pathTem[i].StartPoint.Y.ToString("0.000") + " Z" + dDeepth.ToString("0.000"));
sw1.WriteLine("G01 X" + pathTem[i].EndPoint.X.ToString("0.000") + " Y" + pathTem[i].EndPoint.Y.ToString("0.000") + " Z" + dDeepth.ToString("0.000"));
sw1.WriteLine("G00 X" + pathTem[i].EndPoint.X.ToString("0.000") + " Y" + pathTem[i].EndPoint.Y.ToString("0.000") + " Z" + dHeight.ToString("0.000"));
}
}
sw1.WriteLine("M30");
sw1.Close();
MessageBox.Show("已生成");
}
