C# 读取DXF文件参考模板

1、using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.IO;using System.Collections;namespace DXF public partial class Form1 : Form private FileStream fs; private StreamReader sr; priva

2、te ArrayList LayerList = new ArrayList(); private ArrayList LineList = new ArrayList(); private ArrayList ArcList=new ArrayList(); private ArrayList EllipseList = new ArrayList(); private ArrayList LwopolylineList = new ArrayList(); private ArrayList SplineList=new ArrayList(); private string str =

3、new string2; private int count; private double leftx; private double lefty;1 / 18 private double rightx; private double righty; public Form1() InitializeComponent(); private string ReadPair() string code = sr.ReadLine().Trim(); string codedata = sr.ReadLine().Trim(); count += 2; string result = new

4、string2 code, codedata ; return result; private void Read() while (sr.Peek() != -1) str = ReadPair(); if (str1 = "SECTION") str = ReadPair(); switch (str1) case "HEADER": ReadHeader(); break; case "TABLES": ReadTable(); break; case "ENTITIES": ReadEntities();

5、break; sr.Close(); fs.Close(); btDraw.Enabled = true; label1.Text = count.ToString(); count = 0; private void ReadTable() while (str1 != "ENDSEC") while (str0 != "2" | str1 != "LAYER") str = ReadPair(); while (str0 != "0" | str1 != "LAYER") str = Rea

6、dPair(); while (str0 = "0" && str1 = "LAYER") ReadLAYER(); while (str1 != "ENDSEC") str = ReadPair(); private void ReadLAYER() LAYER newlayer = new LAYER(); while (str1 != "ENDTAB") str = ReadPair(); switch (str0) case "2": = st

7、r1; break; case "62": newlayer.colornum = str1; break; case "6": newlayer.lstyle = str1; break; case "370": newlayer.lwidth = str1; break; if (str0 = "0" && str1 = "LAYER") LayerList.Add(newlayer); return; LayerList.Add(newlayer); private voi

8、d ReadEntities() while (str1 != "ENDSEC") switch (str1) case "LINE": ReadLine(); break; case "ARC": ReadArc(); break; case "CIRCLE": ReadArc(); break; case "ELLIPSE": ReadEllipse(); break; case "LWPOLYLINE": ReadLwpolyline(); break; case &q

9、uot;SPLINE": ReadSpline(); break; default: str = ReadPair(); break; private void ReadArc() ARC newarc = new ARC(); while (str1 != "ENDSEC") str = ReadPair(); switch (str0) case "8": newarc.LName = str1; break; case "10": newarc.CenterX = Double.Parse(str1); break;

10、case "20": newarc.CenterY = Double.Parse(str1); break; case "40": newarc.Radiu = Double.Parse(str1); break; case "50": newarc.SAngle = Double.Parse(str1); break; case "51": newarc.EAngle = Double.Parse(str1); break; case "370": newarc.lwidth = str1;

11、break; case "0": ArcList.Add(newarc); return; private void ReadLine() LINE newline = new LINE(); while (str1 != "ENDSEC") str = ReadPair(); switch (str0) case "8": newline.LName = str1; break; case "10": newline.StartX = Double.Parse(str1); break; case "2

12、0": newline.StartY = Double.Parse(str1); break; case "11": newline.EndX = Double.Parse(str1); break; case "21": newline.EndY = Double.Parse(str1); break; case "62": newline.colornum = str1; break; case "370": newline.lwidth = str1; break; case "0&quo

13、t;: LineList.Add(newline); return; private void ReadEllipse() ELLIPSE newellipse = new ELLIPSE(); while (str1 != "ENDSEC") str = ReadPair(); switch (str0) case "8": newellipse.LName = str1; break; case "10": newellipse.CenterX = Double.Parse(str1); break; case "20&

14、quot;: newellipse.CenterY = Double.Parse(str1); break; case "11": newellipse.DeltaX = Double.Parse(str1); break; case "21": newellipse.DeltaY = Double.Parse(str1); break; case "40": newellipse.Radio = Double.Parse(str1); break; case "41": newellipse.PSAngle =

15、Double.Parse(str1); break; case "42": newellipse.PEAngle = Double.Parse(str1); break; case "370": newellipse.lwidth = str1; break; case "0": EllipseList.Add(newellipse); return; private void ReadLwpolyline() LWPOLYLINE newlw = new LWPOLYLINE(); while (str1 != "ENDS

16、EC") str = ReadPair(); switch (str0) case "8": newlw.LName = str1; break; case "370": newlw.lwidth = str1; break; case "62": newlw.colornum = str1; break; case "90": newlw.PointCount = Int32.Parse(str1); break; case "70": newlw.Flag = Int32.Pars

17、e(str1); break; case "10": newlw.pointx = new doublenewlw.PointCount; newlw.pointy = new doublenewlw.PointCount; /if (newlw.Flag = 1) newlw.converxity = new doublenewlw.PointCount; /else /newlw.converxity = new doublenewlw.PointCount - 1; newlw.pointx0 = Double.Parse(str1); str=ReadPair();

18、 newlw.pointy0 = Double.Parse(str1); for (int i = 1; i < newlw.PointCount; i+) string temp = sr.ReadLine().Trim(); if (temp = "42") newlw.converxityi - 1 = Double.Parse(sr.ReadLine().Trim(); i-; else if (temp = "20") string r = sr.ReadLine().Trim(); newlw.pointyi = Double.Pars

19、e(r); else string r = sr.ReadLine().Trim(); newlw.pointxi = Double.Parse(r); i-; string s = sr.ReadLine().Trim(); if (s = "42") newlw.converxitynewlw.PointCount - 1 = Double.Parse(sr.ReadLine().Trim(); else if (s = "0") sr.ReadLine(); LwopolylineList.Add(newlw); return; else sr.R

20、eadLine(); break; case "0": LwopolylineList.Add(newlw); return; public void ReadSpline() SPLINE newspline = new SPLINE(); while (str1 != "ENDSEC") str = ReadPair(); switch (str0) case "8": newspline.LName = str1; break; case "370": newspline.lwidth = str1; bre

21、ak; case "62": newspline.colornum = str1; break; case "70": newspline.Flag = Int32.Parse(str1); break; case "74": newspline.Count = Int32.Parse(str1); newspline.throughpx = new doubleInt32.Parse(str1); newspline.throughpy = new doubleInt32.Parse(str1); break; case "

22、;12": newspline.SVertorX = Double.Parse(str1); break; case "22": newspline.SVertorY = Double.Parse(str1); break; case "13": newspline.EVertorX = Double.Parse(str1); break; case "23": newspline.EVertorY = Double.Parse(str1); break; case "11": newspline.thr

23、oughpx0 = Double.Parse(str1); str = ReadPair(); newspline.throughpy0 = Double.Parse(str1); str = ReadPair(); for(int i=1;i<newspline.throughpx.Length;i+) str=ReadPair(); if(str0="11") newspline.throughpxi=Double.Parse(str1); i-; else if(str0="21") newspline.throughpyi=Double.P

24、arse(str1); i-; if(newspline.Flag=11) for(int i=0;i<3;i+) str=ReadPair(); break; case "0": SplineList.Add(newspline); return; public void ReadHeader() while (str1 != "ENDSEC") str = ReadPair(); switch (str1) case "$EXTMIN": str = ReadPair(); leftx = Double.Parse(str1

25、); str = ReadPair(); lefty = Double.Parse(str1); break; case "$EXTMAX": str = ReadPair(); rightx = Double.Parse(str1); str = ReadPair(); righty = Double.Parse(str1); break; /打开DXF文件 private void btOpen_Click(object sender, EventArgs e) btDraw.Enabled = false; LayerList.Clear(); LineList.Cl

26、ear(); ArcList.Clear(); EllipseList.Clear(); LwopolylineList.Clear(); SplineList.Clear(); this.openFileDialog1.ShowDialog(); if (this.openFileDialog1.FileName.Trim() != "") string path = this.openFileDialog1.FileName; fs = new FileStream(path, FileMode.Open, FileAccess.Read); sr = new StreamReader(fs); Read(); private void btDraw_Click(object sender, EventArgs e) double width = Math.Ceiling(rightx) - Math.Ceiling(leftx) + 40; double height = Math.Ceiling(righty) - Math.Ceiling(lefty)