Hello everyone, I would like to ask a question. The question is as follows: how to draw a five-pointed star and a square on a point.

MATLAB code：

x=[25 30 35 40 45 50 55];
y1=[3.48 3.42 3.32 3.28 3.1 2.93 2.88];
y2=[12.5 13.4 14.3 15.2 17.1 17.9 18.5];
hold on;
[AX,H1,H2] =plotyy(x,y1,x,y2,@plot);% 
set(get(AX(1),'ylabel'),'string', 'Power consumption（KW）','fontsize',16);
set(get(AX(2),'ylabel'),'string', 'Heating capacity（KW）','fontsize',16);
xlabel('Hot air temperature（℃）','fontsize',16);
%plot(x,y1,'-s');
set(H1,'Linestyle','-s');
%plot2(x,y2,'-p');
set(H2,'Linestyle','-p');
set(gcf,'color','white')

%set(gca,'linewidth',1.5) %
axis([20 60 2.8 3.55])

Line chart in the literature：

Line chart I drew：

Answer 1

[Walter Roberson]

x=[25 30 35 40 45 50 55];
y1=[3.48 3.42 3.32 3.28 3.1 2.93 2.88];
y2=[12.5 13.4 14.3 15.2 17.1 17.9 18.5];
[AX,H1,H2] = plotyy(x,y1,x,y2,@plot);% 
set(get(AX(1),'ylabel'),'string', 'Power consumption（KW）','fontsize',16);
set(get(AX(2),'ylabel'),'string', 'Heating capacity（KW）','fontsize',16);
xlabel('Hot air temperature（℃）','fontsize',16);
set(H1, 'Marker', 's', 'Color', 'k', 'LineWidth', 1.5, 'MarkerFaceColor', 'k');
set(H2, 'Marker', 'p', 'Color', 'b', 'LineWidth', 1.5);
set(gcf,'color','white')
axis([20 60 2.8 3.55])

[Wesley]

Thank you very much for your answers.

[Wesley]

There are still some problems with this image. The start and end points of the blue line do not match the original picture. I don't know which part of the code has a problem.

[Walter Roberson]

axis([20 60 2.8 3.55])

Which of the two axes are you intending to apply that axis() command to?

[Wesley]

x,y1

[Walter Roberson]

 axis([20 60 2.8 3.55])

replace that with

xlim(ax, [20 60])

[Wesley]

ok,thank you very much!