Autocad.net获取行和按行生成行

Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
Editor ed = doc.Editor;

TypedValue[] tvs = new TypedValue[]
{
    new TypedValue((int)DxfCode.Start, "LINE"),
    new TypedValue((int)DxfCode.Operator, "<"),
    new TypedValue((int)DxfCode.Real, 0)
};

SelectionFilter filter = new SelectionFilter(tvs);
PromptSelectionResult selectionResult = ed.SelectAll(filter);

if (selectionResult.Status == PromptStatus.OK)
{
    SelectionSet selectionSet = selectionResult.Value;
    foreach (SelectedObject selectedObject in selectionSet)
    {
        Line line = selectedObject.ObjectId.GetObject(OpenMode.ForRead) as Line;
        // 处理行对象
    }
}

Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
Editor ed = doc.Editor;

using (Transaction tr = db.TransactionManager.StartTransaction())
{
    BlockTable bt = tr.GetObject(db.BlockTableId, OpenMode.ForRead) as BlockTable;
    BlockTableRecord btr = tr.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;

    Point3d startPoint = new Point3d(0, 0, 0);
    Vector3d direction = new Vector3d(1, 0, 0);
    Line line = new Line(startPoint, direction);

    btr.AppendEntity(line);
    tr.AddNewlyCreatedDBObject(line, true);

    tr.Commit();
}