📄 form1.cs
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using DXF;
using System.Collections;
using System.IO;
namespace DxfExportTest
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private Point[] arrBezier = new Point[13]{
new Point(200, 230), new Point(190, 310), new Point(280, 330),
new Point(310, 310), new Point(340, 290), new Point(390, 270),
new Point(355, 225), new Point(330, 240), new Point(305, 255),
new Point(415, 255), new Point(440, 240), new Point(480, 220),
new Point(430, 200)};
private void btnWriteDxf_Click(object sender, EventArgs e)
{
if (dlgSaveDxf.ShowDialog() != DialogResult.OK) return;
if (dlgSaveDxf.FileName != "")
{
DXFExport vDXF = new DXFExport();
DXFData Data = new DXFData();
DXFLayer vLayer;
DXFPoint Pt = new DXFPoint();
//line types
vDXF.AddLType("_SOLID", new float[] { 5, 0 });
vDXF.AddLType("_DASH", new float[] { 5, -2 });
vDXF.AddLType("_DOT", new float[] { 2, -2 });
vDXF.AddLType("_DASHDOT", new float[] { 5, -2, 2, -2 });
vDXF.AddLType("_DASHDOTDOT", new float[] { 5, -2, 2, -2, 2, -2 });
// {blocks}
vDXF.BeginBlock("1");
Data.point.X = 0;
Data.point.Y = -3;
Data.point1.X = 10;
Data.point1.Y = 0;
vDXF.AddRectangle(Data);
Data.Clear();
Data.height = 1;
Data.text = "Block";
Data.point.X = 1;
Data.point.Y = -2;
vDXF.AddText(Data);
vDXF.EndBlock();
vDXF.BeginBlock("2");
Data.Clear();
Data.color = ((int)DXFIntConst.DXF_OLIVE);
Data.point.X = 0;
Data.point.Y = 0;
Data.radius = 40;
vDXF.AddCircle(Data);
vDXF.EndBlock();
vDXF.BeginBlock("3");
Data.Clear();
Data.color = DXFExport.ColorToDXF(Color.Red);
Data.count = 1;
Data.points = new ArrayList();
Data.points.Add(new ArrayList()); // hatch can consist of more that one bound
Pt = new DXFPoint();
Pt.X = 300;
Pt.Y = -100;
Pt.Z = 0.0f;
((ArrayList)Data.points[0]).Add(Pt);
Pt = new DXFPoint();
Pt.X = 0;
Pt.Y = -100;
Pt.Z = 0.0f;
((ArrayList)Data.points[0]).Add(Pt);
Pt = new DXFPoint();
Pt.X = 100;
Pt.Y = 0;
Pt.Z = 0.0f;
((ArrayList)Data.points[0]).Add(Pt);
Data.style = ((byte)DXF.HatchStyle.hsFDiagonal);
vDXF.fOffset = 50;
vDXF.AddHatch(Data);
vDXF.EndBlock();
vDXF.BeginBlock("4"); // Bezier
Data.Clear();
Data.color = ((int)DXFIntConst.DXF_PURPLE);
Data.count = arrBezier.Length;
Data.points = new ArrayList();
Data.points.Add(new ArrayList());
int I;
for (I = 0; I < Data.count; I++)
{
Pt = new DXFPoint();
Pt.X = arrBezier[I].X;
Pt.Y = -arrBezier[I].Y;
Pt.Z = 0;
((ArrayList)Data.points[0]).Add(Pt);
}
vDXF.AddPolyBezier(Data, 0);
vDXF.EndBlock();
vDXF.SetLayerByString("0");
// {entities}
Data.Clear();
Data.color = ((int)DXFIntConst.DXF_TEAL);
Data.thickness = 10;
Data.point.X = 10;
Data.point.Y = 10;
Data.point1.X = 20;
Data.point1.Y = 20;
vDXF.AddLine(Data);
Data.Clear();
Data.color = ((int)DXFIntConst.DXF_OLIVE);
Data.text = "_DASHDOT";
Data.thickness = 1;
Data.point.X = 12;
Data.point.Y = 12;
Data.radius = 45;
vDXF.AddCircle(Data);
Data.Clear();
Data.height = 50;
Data.rotation = 0;
Data.text = "DXF Exporter";
Data.point.X = 57;
Data.point.Y = 76;
vDXF.AddText(Data);
Data.Clear();
Data.color = DXFExport.ColorToDXF(Color.Yellow);
Data.point.X = 80;
Data.point.Y = 10;
Data.point1.X = 120;
Data.point1.Y = 30;
vDXF.AddRectangle(Data);
Data.Clear();
Data.color = DXFExport.ColorToDXF(Color.Green);
Data.text = "_DASH";
Data.thickness = 3;
Data.point.X = 100;
Data.point.Y = 20;
Data.radius = 30;
Data.startAngle = -90;
Data.endAngle = 90;
vDXF.AddArc(Data);
Data.Clear();
vLayer = new DXFLayer("Blocks");
vDXF.CurrentLayer = vLayer;
Data.thickness = 0;
Data.text = "1";
Data.point.X = 70;
Data.point.Y = -30;
Data.scale.X = 3;
Data.scale.Y = 3;
vDXF.Insert(Data);
Data.text = "1";
Data.point.Y = -40;
Data.scale.X = 5;
Data.scale.Y = 5;
vDXF.Insert(Data);
Data.point.Y = -60;
Data.scale.X = 10;
Data.scale.Y = 10;
vDXF.Insert(Data);
Data.Clear();
Data.text = "2";
Data.point.X = 12;
Data.point.Y = 80;
Data.scale.X = 1;
Data.scale.Y = 1;
vDXF.Insert(Data);
Data.Clear();
vLayer = new DXFLayer("Hatch");
vDXF.CurrentLayer = vLayer;
Data.text = "3";
Data.point.X = 120;
Data.point.Y = 80;
Data.scale.X = 1;
Data.scale.Y = 1;
vDXF.Insert(Data);
Data.Clear();
vLayer = new DXFLayer("Bezier");
vDXF.CurrentLayer = vLayer;
Data.text = "4";
Data.point.X = 0;
Data.point.Y = 200;
Data.scale.X = 1;
Data.scale.Y = 1;
vDXF.Insert(Data);
//******************** */
vDXF.SaveToFile(dlgSaveDxf.FileName);
}
}
private void button1_Click(object sender, EventArgs e)
{
WriteDXFPolygon("", 5, 20, 50, 8);
}
private void WriteDXFPolygon(string dxfFile, int iSides, double dblX, double dblY, double dblLen)
{
double dblA1, dblA, dblPI, dblNX, dblNY;
string path = @"c:\test.dxf";
using (StreamWriter sw = File.CreateText(path))
{
sw.WriteLine("0");
sw.WriteLine("SECTION");
sw.WriteLine("2");
sw.WriteLine("ENTITIES");
dblPI = Math.PI;
dblA1 = (2.0 * dblPI) / iSides;
dblA = dblPI /2.0;
for (int i = 1; i < iSides + 1; i++)
{
sw.WriteLine("0");
sw.WriteLine("LINE");
sw.WriteLine("8");
sw.WriteLine("Polygon");
sw.WriteLine("10");
sw.WriteLine(dblX);
sw.WriteLine("20");
sw.WriteLine(dblY);
dblNX = dblLen * Math.Cos(dblA) + dblX;
dblNY = dblLen * Math.Sin(dblA) + dblY;
sw.WriteLine("11");
sw.WriteLine(dblX);
sw.WriteLine("21");
sw.WriteLine(dblNY);
dblX = dblNX;
dblY = dblNY;
dblA = dblA + dblA1;
}
sw.WriteLine("0");
sw.WriteLine("ENDSEC");
sw.WriteLine("0");
sw.WriteLine("EOF");
}
}
}
}
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