Question

点在MxDrawCAD控件下为一个实体类：

class ARXDLL McDbPoint: public McDbEntity

通过调用点的构造函数：

// -------------------------------------------------------------------------
// Summary:
//  构造函数
// -------------------------------------------------------------------------
McDbPoint();
// -------------------------------------------------------------------------
// Summary:
//  构造函数
// Parameters:
//  position - 点位置
// -------------------------------------------------------------------------
McDbPoint(const McGePoint3d&   position);

初始化，或使用默认的构造函数，代码如下：

	{
		McDbPoint * pEnt = new McDbPoint(McGePoint3d(1, 1, 0));
		SetEnt(256, _T("ByLayer"), pEnt);//颜色随层，线型随层
	}
	{
		McDbPoint * pEnt = new McDbPoint(McGePoint3d(2, 2, 0));
		SetEnt(0, _T("ByBlock"), pEnt);//颜色随块，线型随块
	}
	{
		McDbPoint * pEnt = new McDbPoint(McGePoint3d(3, 3, 0));
		SetEnt(2, _T("BORDER"), pEnt);//黄色，BORDER线型	
	}