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天雨

请问怎么将极坐标的刻度设置为与风频相对应的百分比？还有怎么填颜色，透明显示底图？
程序如下：b=[48,23,11,14,26,30,79,25]/328;%按照北、东北、东、东南、南、西南、西、西北顺时针顺序
a=72/328;%静风频率
n=length(b);
po=b;
m=5;%圈数
w=ceil(max(po)/m)/100;
dir_ang=(0:360/n:360)*pi/180;
wn=1/m;po=po/w/100*wn;po(n+1)=po(1);
po=po*wn/max(po)*m;
px=(po).*sin(dir_ang);
py=(po).*cos(dir_ang);
ang_cyc=0:0.01:2*pi;
for i=1:n+1
plot([-1 -0.08]*cos(dir_ang(i)),[-1 -0.08]*sin(dir_ang(i)),'k');
hold on
plot([0.08 1]*cos(dir_ang(i)),[0.08 1]*sin(dir_ang(i)),'k');
hold on
end
for i=1:m
plot((i*wn)*cos(ang_cyc),(i*wn)*sin(ang_cyc),'k:');%    text((i-0.4)*wn,0.04,[num2str(i*w*100),'%']);
text((i)*wn,0.04,num2str(i*w*100));
hold on
end
plot(0.08* cos(ang_cyc),0.08*sin(ang_cyc) ,'k');
hold on
grid on
plot(px,py,'-','LineWidth',2);
plot(px,py,'.','LineWidth',4);
fill(px,py,'b');
text((m*wn+0.1)*sin(2/180*pi),(m*wn+0.1)*cos(2/180*pi),'N','rotation',180);
text((m*wn+0.1)*sin(42/180*pi),(m*wn+0.1)*cos(42/180*pi),'NE','rotation',-45);
text((m*wn+0.1)*sin(88/180*pi),(m*wn-0.8)*cos(88/180*pi),'E','rotation',0);
text((m*wn)*sin(132/180*pi),(m*wn+0.25)*cos(132/180*pi),'SE','rotation',45);
text((m*wn+0.1)*sin(178/180*pi),(m*wn+0.1)*cos(178/180*pi),'S','rotation',180);
text((m*wn+0.3)*sin(220/180*pi),(m*wn)*cos(220/180*pi),'SW','rotation',-45);
text((m*wn+0.15)*sin(268/180*pi),(m*wn-0.8)*cos(268/180*pi),'W','rotation',0);
text((m*wn+0.1)*sin(312/180*pi),(m*wn+0.1)*cos(312/180*pi),'NW','rotation',45);
axis off
axis equal

天雨

背景白色，就能显示出线！

天雨

有没有大师可以帮忙指导我，绘制风玫瑰图时遇到很多问题，也是刚刚学习MATLAB，QQ245642316,谢谢！

沙颖凯

http://www.mathworks.com/matlabc ... nge/47248-wind-rose