CAD二次开发之简单几行C#代码实现一万个圆的创建

代码示例

using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;

namespace CreateCircle
{
    public class Class1
    {
        [CommandMethod("CreateCircle")]
        public void Test()
        {
            Database db = HostApplicationServices.WorkingDatabase;
            Circle[] circles = new Circle[10000];
            //初始化圆对象
            for (int i = 0; i < 100; i++)
            {
                for (int j = 0; j < 100; j++)
                {
                    circles[i * 100 + j] = new Circle(new Point3d(j * 100, i * 100, 0), Vector3d.ZAxis, 50);
                }
            }
            //开启事务处理
            using (Transaction tr = db.TransactionManager.StartTransaction())
            {
                //只读方式开启块表、只写方式开启块表记录
                BlockTable bt = (BlockTable)tr.GetObject(db.BlockTableId, OpenMode.ForRead);
                BlockTableRecord btr = (BlockTableRecord)tr.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);
                //向块表记录附加实体对象
                for (int i = 0; i < circles.Length; i++)
                {
                    btr.AppendEntity(circles[i]);
                    tr.AddNewlyCreatedDBObject(circles[i], true);
                }
                //提交事务
                tr.Commit();
            }
        }
    }
}

说明：需要引入与调试CAD版本对应的库文件，如：AcCoreMgd.dll、AcMgd.dll、AcDbMgd.dll，将按F7生成的CreateCircle.dll库文件加载到CAD中，输入CreateCircle命令即可看到效果。开发环境配置请参考下文：

CAD2022+VS2022+ObjectARX2022+C#开发环境配置

2年前

1260310

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