Saving High Quality graphs within loop

Question

federico nutarelli 2021-7-20

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/882198-saving-high-quality-graphs-within-loop

回答： Bjorn Gustavsson 2021-7-20

Hii all,

I am using a package called borders in matlab to make colored maps. The problem is that the countries have to be colored one by one within a for loop. Now my aim is to save the depicted world in high resolution. My code looks as follows:

bord = borders('countries','r');
borders('countries','facecolor',[0.85,0.85,0.85])
axis tight
%W
for k=1:size(genepy_W_W_pred,1)
    if genepy_W_W_pred.dummy_W(k)==1 %se è W_pred
        borders(cell2mat(genepy_W_W_pred.ctry_W_W_pred(k)),'facecolor',genepy_W_W_pred.color(k,:))
    end
end
exportgraphics(bord,'genepy_hs4_W_HQ.jpg','Resolution',500)

and it is basically creating a map of the world with red boundaries and coloring the countries one by one according to genepy_W_W_pred. I was trying to use exportgraphics(bord,'genepy_hs4_W_HQ.jpg','Resolution',500) but it raisses an handle issue.

Is there a way to name the figure appearing on the panel and save it in high resolution?

Thank you

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Answer 1

Bjorn Gustavsson 2021-7-20

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/882198-saving-high-quality-graphs-within-loop#answer_750298

在 MATLAB Online 中打开

The first input-argument to exportgraphics is supposed to be a handle to any type of axes. The handle you send in might very well be lost in the plotting function-calls you perform after you generate it. Maybe you get the proper handle to the current axes if you use an output-argument to the borders call in the loop:

bord = borders('countries','r');
borders('countries','facecolor',[0.85,0.85,0.85])
axis tight
%W
for k=1:size(genepy_W_W_pred,1)
    if genepy_W_W_pred.dummy_W(k)==1 %se è W_pred
        bord = borders(cell2mat(genepy_W_W_pred.ctry_W_W_pred(k)),...
            'facecolor',genepy_W_W_pred.color(k,:));
    end
end
exportgraphics(bord,'genepy_hs4_W_HQ.jpg','Resolution',500)