C# 读取DXF文件文档格式.docx

1、 private double lefty; 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 string2 code, codedata ; return result; private void Read（）

2、 while （sr.Peek（） != -1） str = ReadPair（）; if （str1 = SECTION） switch （str1） case HEADER: ReadHeader（）; break;TABLES ReadTable（）;ENTITIES ReadEntities（）; sr.Close（）; fs.Close（）; btDraw.Enabled = true; label1.Text = count.ToString（）; count = 0; private void ReadTable（） while （str1 != ENDSEC while （st

3、r0 !2 | str1 !LAYER0 while （str0 = & str1 = ReadLAYER（）; private void ReadLAYER（） LAYER newlayer = new LAYER（）;ENDTAB switch （str0） newlayer.name = str1;62 newlayer.colornum = str1;6 newlayer.lstyle = str1;370 newlayer.lwidth = str1; if （str0 = LayerList.Add（newlayer）; return; private void ReadEntit

4、ies（）LINE ReadLine（）;ARC ReadArc（）;CIRCLEELLIPSE ReadEllipse（）;LWPOLYLINE ReadLwpolyline（）;SPLINE ReadSpline（）; default: private void ReadArc（） ARC newarc = new ARC（）;8 newarc.LName = str1;10 newarc.CenterX = Double.Parse（str1）;20 newarc.CenterY = Double.Parse（str1）;40 newarc.Radiu = Double.Parse（st

5、r1）;50 newarc.SAngle = Double.Parse（str1）;51 newarc.EAngle = Double.Parse（str1）; newarc.lwidth = str1; ArcList.Add（newarc）; private void ReadLine（） LINE newline = new LINE（）; newline.LName = str1; newline.StartX = Double.Parse（str1）; newline.StartY = Double.Parse（str1）;11 newline.EndX = Double.Parse

6、（str1）;21 newline.EndY = Double.Parse（str1）; newline.colornum = str1; newline.lwidth = str1; LineList.Add（newline）; private void ReadEllipse（） ELLIPSE newellipse = new ELLIPSE（）; newellipse.LName = str1; newellipse.CenterX = Double.Parse（str1）; newellipse.CenterY = Double.Parse（str1）; newellipse.Del

7、taX = Double.Parse（str1）; newellipse.DeltaY = Double.Parse（str1）; newellipse.Radio = Double.Parse（str1）;41 newellipse.PSAngle = Double.Parse（str1）;42 newellipse.PEAngle = Double.Parse（str1）; newellipse.lwidth = str1; EllipseList.Add（newellipse）; private void ReadLwpolyline（） LWPOLYLINE newlw = new L

8、WPOLYLINE（）; newlw.LName = str1; newlw.lwidth = str1; newlw.colornum = str1;90 newlw.PointCount = Int32.Parse（str1）;70 newlw.Flag = Int32.Parse（str1）; newlw.pointx = new doublenewlw.PointCount; newlw.pointy = new doublenewlw.PointCount; /if （newlw.Flag = 1） newlw.converxity = new doublenewlw.PointCo

9、unt; /else /newlw.converxity = new doublenewlw.PointCount - 1; newlw.pointx0 = Double.Parse（str1）; str=ReadPair（）; newlw.pointy0 = Double.Parse（str1）; for （int i = 1; i newlw.PointCount; i+） string temp = sr.ReadLine（）.Trim（）; if （temp = newlw.converxityi - 1 = Double.Parse（sr.ReadLine（）.Trim（）; i-;

10、 else if （temp = string r = sr.ReadLine（）.Trim（）; newlw.pointyi = Double.Parse（r）; else newlw.pointxi = Double.Parse（r）; string s = sr.ReadLine（）.Trim（）; if （s = newlw.converxitynewlw.PointCount - 1 = Double.Parse（sr.ReadLine（）.Trim（）; else if （s = sr.ReadLine（）; LwopolylineList.Add（newlw）; else sr.

11、ReadLine（）; public void ReadSpline（） SPLINE newspline = new SPLINE（）; newspline.LName = str1; newspline.lwidth = str1; newspline.colornum = str1; newspline.Flag = Int32.Parse（str1）;74 newspline.Count = Int32.Parse（str1）; newspline.throughpx = new doubleInt32.Parse（str1）; newspline.throughpy = new do

12、ubleInt32.Parse（str1）;12 newspline.SVertorX = Double.Parse（str1）;22 newspline.SVertorY = Double.Parse（str1）;13 newspline.EVertorX = Double.Parse（str1）;23 newspline.EVertorY = Double.Parse（str1）; newspline.throughpx0 = Double.Parse（str1）; newspline.throughpy0 = Double.Parse（str1）; for（int i=1;inewspl

13、ine.throughpx.Length;i+） if（str0= newspline.throughpxi=Double.Parse（str1）; else if（str0= newspline.throughpyi=Double.Parse（str1）; if（newspline.Flag=11） for（int i=0;3; SplineList.Add（newspline）; public void ReadHeader（）$EXTMIN leftx = Double.Parse（str1）; lefty = Double.Parse（str1）;$EXTMAX rightx = Do

14、uble.Parse（str1）; righty = Double.Parse（str1）;/打开DXF文件 private void btOpen_Click（object sender, EventArgs e） btDraw.Enabled = false; LayerList.Clear（）; LineList.Clear（）; ArcList.Clear（）; EllipseList.Clear（）; LwopolylineList.Clear（）; SplineList.Clear（）; this.openFileDialog1.ShowDialog（）; if （this.ope

15、nFileDialog1.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 heigh

16、t = Math.Ceiling（righty） - Math.Ceiling（lefty） + 40; Bitmap bmp = new Bitmap（int）width, （int）height）; Graphics gx = Graphics.FromImage（bmp）; double pw = width / （double）460; double ph = height / （double）384; for （int i = 0; LineList.Count; LINE temp = （LINE）LineListi; temp.Move（leftx, lefty, righty

17、- lefty + 39）; temp.Draw（gx）; ArcList.Count; ARC temp = （ARC）ArcListi; EllipseList.Count; ELLIPSE temp = （ELLIPSE）EllipseListi; temp.Move（leftx + 1, lefty + 1）; temp.Draw（gx, height - 1, pw, ph）; LwopolylineList.Count; LWPOLYLINE temp = （LWPOLYLINE）LwopolylineListi; temp.Draw（gx, leftx, lefty, righty - lefty + 39）; SplineList.Count; SPLINE temp = （SPLINE）SplineListi; temp.Draw（gx, leftx - 10, lefty, righty - lefty + 39）; this.pictureBox1.Image = bmp;