如何调动图的大小

sjl1983226

clear; clf
x=[0 100 200 300 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1700 1800 1900 2000];
yxy=[9.666 9.614 9.584 9.549 9.513 9.532 9.577 9.606 9.682 9.657 9.579 9.551 9.547 9.583 9.619 9.629 9.627 9.539 9.554 9.56 9.559 9.592 9.607 9.645 9.659 9.63 9.59 9.539 9.538 9.545 9.567 9.586 9.616];
ysy=[9.667 9.608 9.564 9.547 9.541 9.538 9.59 9.621 9.662 9.652 9.585 9.551 9.529 9.581 9.603 9.629 9.627 9.54 9.556 9.557 9.552 9.61 9.611 9.629 9.661 9.626 9.578 9.534 9.539 9.537 9.553 9.596 9.611];
plot(x,ysy,'-r','linewidth',2); hold on
plot(x,yxy,'-b','linewidth',2)
set(gca,'xtick',[0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000],'fontsize',12)
set(gca,'xticklabel',{'0#墩','1/4跨','跨中','3/4跨','1#墩','1/4跨','跨中','3/4跨','2#墩','1/4跨','跨中','3/4跨','3#墩','1/4跨','跨中','3/4跨','4#墩','1/4跨','跨中','3/4跨','5#墩'})
set(gca,'ytick',0:0.05:9.7,'fontsize',12)
axis auto; grid on
xlabel('\bf测点所在桥跨纵桥向位置','fontsize',17,'color','k');
ylabel('\bf高程/m','rotation',90,'fontsize',17,'color','k'); legend('上游侧','下游侧',0)

第一个问题是我的图显示出来如图1，现在我想让他显示出来如图2，就是X轴长度不变，Y方向变矮，问题2是我想让这33个点拟合的线条是一条圆滑的曲线，第三个问题是legend('上游侧','下游侧',0)中的0是什么意思，谢谢

[ 本帖最后由 ChaChing 于 2010-6-12 12:29 编辑 ]

ChaChing

1.使用mouse手动resize图的大小, 或如下调动
hf=get(gcf,'position'); hf(4)=225; set(gcf,'Position',hf);
2. help interp1 ...
3. help legend, 0-auto or best