how to add a STAR or Triangle shape to plot simply without knowing their vertex?

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roudan
roudan 2021-7-15
评论： roudan 2021-7-16
Hi
I have a contourf. I'd like to just add a simple Star or Triangular shape to certian location within the plot. I am thinking to use Patch() but patch still requires to provide the vertext of this Star or triangular shape in order to draw it. Is there a command to add this shape without knowing their vertex? Thanks

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Jonas
Jonas 2021-7-15
编辑：Jonas 2021-7-15
smth. like that probably
Z = peaks;
contourf(Z); hold on;
plot(15,10,'rp','MarkerSize',15,'MarkerFaceColor','r')
all markers can be found here, there are also triangles and hexagonal stars
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Jonas
Jonas 2021-7-16
hi roudan, you can show your code how you saved your handles. the following worked for me without problems:
Z = peaks;
contourf(Z); hold on;
mark=plot(15,10,'rp','MarkerSize',15,'MarkerFaceColor','r');
delete(mark)

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