云中燕谁 云中燕谁
关注数: 32 粉丝数: 39 发帖数: 1,155 关注贴吧数: 20
万方文具专卖 图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff8211f39d2d3ddcbda71b116600ee300a41f6ebd&urlrefer=856502fdcc504648e1b67704478e942b
每天都在楼下买本子,不知道为什么你们就不去支持下! 万方有爱,同学们都去支持下呗,当一个学生不容易呀!图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff675cc69bf389945e1d4ed1d07e01de94f36eff4&urlrefer=78728d5e2fe1748686afaf8630c75645图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff675cc69bf389945e1d4ed1d07e01de94f36eff4&urlrefer=78728d5e2fe1748686afaf8630c75645图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff675cc69bf389945e1d4ed1d07e01de94f36eff4&urlrefer=78728d5e2fe1748686afaf8630c75645图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff675cc69bf389945e1d4ed1d07e01de94f36eff4&urlrefer=78728d5e2fe1748686afaf8630c75645图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff675cc69bf389945e1d4ed1d07e01de94f36eff4&urlrefer=78728d5e2fe1748686afaf8630c75645图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff675cc69bf389945e1d4ed1d07e01de94f36eff4&urlrefer=78728d5e2fe1748686afaf8630c75645图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff675cc69bf389945e1d4ed1d07e01de94f36eff4&urlrefer=78728d5e2fe1748686afaf8630c75645图片来自: http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fxiangce.baidu.com%2Fpicture%2Falbum%2Flist%2Ff675cc69bf389945e1d4ed1d07e01de94f36eff4&urlrefer=78728d5e2fe1748686afaf8630c75645
【求助】关于直线的编码剪切法 思路:画出一个矩形框 #include"graphics.h" #include"stdio.h" #define Top 8 #define Bottom 4 #define Left 1 #define Right 2 /*该函数用于判断给出点在的位置 左上为1001,正上为1000,右上为1010 左边0001 ,正中为0000,右边 0010 左下0101,正下为0100,右下0110 */ int station(int x,int y,int a,int b,int c,int d) { if((x>=a&&x<=b)&&(y>=c&&y<=d)) return 0; if((x>=a&&x<=b)&&y<c) return 8; if((x>=a&&x<=b)&&y>d) return 4; if(x<a&&y<c) return 9; if(x<a&&(y>=c&&y<=d)) return 1; if(x<a&&y>=d) return 5; if(x>b&&y<c) return 10; if(x>b&&(y>=c&&y<=d)) return 2; if(x>b&&y>d) return 6; } main() { int gr=DETECT,gm,x1,y1,x2,y2,temp1,temp2,temp,x,y; int Wxl=200; int Wxr=400; int Wyt=150; int Wyb=350; int draw=0; printf("Please input x1,y1,x2,y2:"); scanf("%d%d%d%d",&x1,&y1,&x2,&y2); initgraph(&gr,&gm,""); cleardevice(); /*根据上面给定的边框的位置,还有输入的两坐标值,画出边框并判断两端点的位置*/ rectangle(Wxl,Wyt,Wxr,Wyb); temp1=station(x1,y1,Wxl,Wxr,Wyt,Wyb); temp2=station(x2,y2,Wxl,Wxr,Wyt,Wyb); while(1) { /*设第一个点为A,另一点为B,如果两点的位置都在矩形框内部则画线*/ if(temp1==0&&temp2==0) { draw=1; printf("both A and B are in Arctangle\n"); break; } /*都不在则不画*/ if((temp1&temp2)!=0) { printf("both A and B aren't in Arctangle\n"); break; } /*如果A点不在则求出A与所交的边的交点, 如果B点不在则求出B与所交的边的交点 如果都不在则先求A与的交点,待处理玩A后在处理B的问题 */ if(temp1!=0) { temp=temp1; printf("A isn't in Arctangle\n"); } else { temp=temp2; printf(" B isn't in Arctangle\n"); } if((temp&Left)!=0) { x=Wxl; y=(y2-y1)/(x2-x1)*(x-x1)+y1; printf("yu left you jiao dian\n "); } if((temp&Right)!=0) { x=Wxr; y=(y2-y1)/(x2-x1)*(x-x1)+y1; printf("y=%d\n",y); printf("yu right you jiao dian\n "); } if((temp&Top)!=0) { y=Wyt; x=(x2-x1)/(y2-y1)*(y-y1)+x1; printf("yu top you jiao dian "); } if((temp&Bottom)!=0) { x=(x2-x1)/(y2-y1)*(Wyb-y1)+x1; y=Wyb; printf("x=%d",x); printf("yu bottom you jiao dian "); } /*把不在的点移到交点上 执行完后再对新的线段进行判读 知道都在退出循环 */ if(temp1==temp) { x1=x; y1=y; printf("x1=%d,y1=%d",x1,y1); temp1=station(x1,y1,Wxl,Wxr,Wyt,Wyb); } if(temp2==temp) { x2=x; y2=y; printf("x2=%d,y2=%d",x,y); temp2=station(x2,y2,Wxl,Wxr,Wyt,Wyb); } } /*画线*/ if(draw) { printf("x2=%d,y2=%d",x2,y2); line(x1,y1,x2,y2); } getch(); closegraph(); } 问题:在WinTC的环境下编辑,对于第一点在框内,第二点不在里面的情况,不正确,
1 下一页