Line markers disappeared after save as .eps/.emf when yyaxis was used

Question

zelong yu 2020-5-11

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回答： Mingheng 2025-5-28

Dear all,

I am currenty having the issues about disappeared line markers in the exported figures. The simplified example code is showing below:

clc, clear all
x = 1:10;
y1= 1*x;
y2= 0*x;
figure
newcolors = [1 0 0; 0 0 1];
colororder(newcolors);
[hAx,hLine1,hLine2] = plotyy(x,y2, x,y1); hold on
hLine1.LineStyle = '-';
hLine1.Marker = 'o';
hLine2.LineStyle = '--';
hLine2.Marker = 's';
ax = gca;
ax.YLim = ([0 1]);
figure
newcolors = [1 0 0; 0 0 1];
colororder(newcolors);
yyaxis left
plot(x,y2, ' o-'); hold on
ylim([0 1])
yyaxis right
plot(x,y1, ' s--'); hold on

For both methods, the pop-up figures have no issues. However, after saving the figures as .eps/.emf, the line markers disappears if yyaxis was used, while there is no issue if plotyy was used.

I could use plotyy for the figure plotting. However, I am wondering if someone help me with using yyaxis for the figure plotting? Many thanks.

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Answer 1

Harsha Priya Daggubati 2020-5-14

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Hi,

Can you elaborate on how you are trying to save your figure as '.eps' file, and the application you are using to view the eps file.

At my end, I am proceeding as follows:

clc, clear all
x = 1:10;
y1= 1*x;
y2= 0*x;
figure
newcolors = [1 0 0; 0 0 1];
colororder(newcolors);
[hAx,hLine1,hLine2] = plotyy(x,y2, x,y1); hold on
hLine1.LineStyle = '-';
hLine1.Marker = 'o';
hLine2.LineStyle = '--';
hLine2.Marker = 's';
ax = gca;
ax.YLim = ([0 1]);
print('fig1','-depsc2');
figure
newcolors = [1 0 0; 0 0 1];
colororder(newcolors);
yyaxis left
plot(x,y2, ' o-'); hold on
ylim([0 1])
yyaxis right
plot(x,y1, ' s--'); hold on
print('fig2','-depsc2');