博客
关于我
VC++绘制铁路道岔
阅读量:108 次
发布时间:2019-02-26

本文共 2558 字,大约阅读时间需要 8 分钟。

绘制代码;

void CDaocaView::OnDraw(CDC* pDC){	CDaocaDoc* pDoc = GetDocument();	ASSERT_VALID(pDoc);	// TODO: add draw code for native data here	COLORREF DaoChaColor= RGB(0,0,0);	int width = m_rect.Width() ;	int height = m_rect.Height() ;	CPen newpen(PS_SOLID,60,DaoChaColor);	CPen newpen1(PS_SOLID,60,RGB(0,255,255));	CPen *pOldPen = pDC->SelectObject(&newpen);     pDC->MoveTo(m_rect.left,(int)(m_rect.top + height*0.5));	 pDC->LineTo((int)(m_rect.left +width*0.33),(int)(m_rect.top + height*0.5));    	 pDC->MoveTo((int)(m_rect.left +width*0.33),(int)(m_rect.top+height*0.5));	 pDC->LineTo((int)(m_rect.left +width*0.5),(int)(m_rect.top+(height*0.5+width*(sqrt(3))/6)));	 pDC->MoveTo((int)(m_rect.left +width*0.67),(int)(m_rect.top + height*0.5));	 pDC->LineTo((int)(m_rect.left +width),m_rect.top+height*0.5);	m_rect.left=240;	m_rect.right=440;	 pDC->MoveTo(m_rect.left,(int)(m_rect.top + height*0.5));	 pDC->LineTo((int)(m_rect.left +width/3),(int)(m_rect.top + height*0.5));	 pOldPen = pDC->SelectObject(&newpen1);	 pDC->MoveTo((int)(m_rect.left +width/3),(int)(m_rect.top+height*0.5));	 pDC->LineTo((int)(m_rect.left +width*2/3),(int)(m_rect.top+height*0.5));	 pOldPen = pDC->SelectObject(&newpen);	 pDC->MoveTo((int)(m_rect.left +width*2/3),(int)(m_rect.top + height*0.5));	 pDC->LineTo((int)(m_rect.left +width),m_rect.top+height*0.5);	 m_rect.left=470;	 m_rect.right=670; 	 pDC->MoveTo(m_rect.left,(int)(m_rect.top + height*0.5));	 pDC->LineTo((int)(m_rect.left +width/3),(int)(m_rect.top + height*0.5));	 pDC->MoveTo((int)(m_rect.left +width/3),(int)(m_rect.top+height*0.5));	 pDC->LineTo((int)(m_rect.left +width*0.5),(int)(m_rect.top+(height*0.5-width*(sqrt(3))/6)));	 pDC->MoveTo((int)(m_rect.left +width*2/3),(int)(m_rect.top + height*0.5));	 pDC->LineTo((int)(m_rect.left +width),m_rect.top+height*0.5);	 m_rect.left=700;	 m_rect.right=900; 	 pDC->MoveTo(m_rect.left,(int)(m_rect.top + height*0.5));	 pDC->LineTo((int)(m_rect.left +width/3),(int)(m_rect.top + height*0.5));	 pDC->MoveTo((int)(m_rect.left +width/3),(int)(m_rect.top+height*0.5));	 pDC->LineTo((int)(m_rect.left +width/2),(int)(m_rect.top+(height*0.5+width*(sqrt(3))/6)));	 pDC->MoveTo((int)(m_rect.left +width*2/3),(int)(m_rect.top + height*0.5));	 pDC->LineTo((int)(m_rect.left +width),m_rect.top+height*0.5);       	pDC->SetBkMode(TRANSPARENT);	pDC->SelectObject(pOldPen);}

头文件添加一个成员变量:CRect m_rect;

初始化;

CDaocaView::CDaocaView(){	// TODO: add construction code here	m_rect.left=10;	m_rect.top=10;	m_rect.right=210;	m_rect.bottom=210;}

包含<math.h>;

绘制效果如下;

    我也不太了解什么是道岔;可能是指的铁路交叉的地方;

转载地址:http://kpyy.baihongyu.com/

你可能感兴趣的文章
mysql 审核_审核MySQL数据库上的登录
查看>>
mysql 导入 sql 文件时 ERROR 1046 (3D000) no database selected 错误的解决
查看>>
mysql 导入导出大文件
查看>>
MySQL 导出数据
查看>>
mysql 将null转代为0
查看>>
mysql 常用
查看>>
MySQL 常用列类型
查看>>
mysql 常用命令
查看>>
Mysql 常见ALTER TABLE操作
查看>>
MySQL 常见的 9 种优化方法
查看>>
MySQL 常见的开放性问题
查看>>
Mysql 常见错误
查看>>
mysql 常见问题
查看>>
MYSQL 幻读(Phantom Problem)不可重复读
查看>>
mysql 往字段后面加字符串
查看>>
mysql 快照读 幻读_innodb当前读 与 快照读 and rr级别是否真正避免了幻读
查看>>
MySQL 快速创建千万级测试数据
查看>>
mysql 快速自增假数据, 新增假数据,mysql自增假数据
查看>>
MySql 手动执行主从备份
查看>>
Mysql 批量修改四种方式效率对比(一)
查看>>