/// <summary>
/// Initialize string builder with initial sections + line types
/// Instantiate DL_Dxf class and DL_Writer class
/// </summary>
/// <param name="factory"></param>
public override void Initialize(PicFactory factory)
{
DL_Codes.dxfversion version = DL_Codes.dxfversion.AC1012;
dw = new DL_Writer(version);
dxf = new DL_Dxf();
dxf.writeHeader(dw);
dw.sectionEnd();
// opening the table section
dw.sectionTables();
// writing viewports
dxf.writeVPort(dw);
// writing line types
dw.tableLineTypes(25);
dxf.writeLineType(dw, new DL_LineTypeData("BYBLOCK", 0));
dxf.writeLineType(dw, new DL_LineTypeData("BYLAYER", 0));
dxf.writeLineType(dw, new DL_LineTypeData("CONTINUOUS", 0));
dxf.writeLineType(dw, new DL_LineTypeData("ACAD_ISO02W100", 0));
dxf.writeLineType(dw, new DL_LineTypeData("ACAD_ISO03W100", 0));
dxf.writeLineType(dw, new DL_LineTypeData("ACAD_ISO04W100", 0));
dxf.writeLineType(dw, new DL_LineTypeData("ACAD_ISO05W100", 0));
dxf.writeLineType(dw, new DL_LineTypeData("BORDER", 0));
dxf.writeLineType(dw, new DL_LineTypeData("BORDER2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("BORDERX2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("CENTER", 0));
dxf.writeLineType(dw, new DL_LineTypeData("CENTER2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("CENTERX2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DASHDOT", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DASHDOT2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DASHDOTX2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DASHED", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DASHED2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DASHEDX2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DIVIDE", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DIVIDE2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DIVIDEX2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DOT", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DOT2", 0));
dxf.writeLineType(dw, new DL_LineTypeData("DOTX2", 0));
dw.tableEnd();
// writing the layers
int numberOfLayers = 3;
dw.tableLayers(numberOfLayers);
// CUT
dxf.writeLayer(dw, new DL_LayerData("L5-113", 0),
new DL_Attributes("", // leave empty
(int)DL_Codes.dxfcolor.red, // default color
100, // default width
"CONTINUOUS")); // default line style
// FOLD
dxf.writeLayer(dw, new DL_LayerData("L8-123", 0),
new DL_Attributes("", // leave empty
(int)DL_Codes.dxfcolor.blue, // default color
100, // default width
"CONTINUOUS")); // default line style
// COTATION
dxf.writeLayer(dw, new DL_LayerData("LDM-4", 0),
new DL_Attributes("", // leave empty
(int)DL_Codes.dxfcolor.green, // default color
100, // default width
"CONTINUOUS")); // default line style
dw.tableEnd();
dw.sectionEnd();
// write all entities
dw.sectionEntities();
}