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How to plot vertical lines for reference using vline?

73 vues (au cours des 30 derniers jours)
Jonas Lara
Jonas Lara le 23 Avr 2018
Im using vline and hline unsuccesfully. It seems that doesn't work when i need it. Example:
if true
x = -10:.2:10;
y = sin(x)+2;
plot(x, y)
vline(0, 'k')
hline(0, 'k')
grid minor
axis([-5 5 -5 5])
hold on
y = sin(x) - 2;
plot(x,y)
end
  4 commentaires
Pawel Jastrzebski
Pawel Jastrzebski le 23 Avr 2018
Jonas Lara
Jonas Lara le 23 Avr 2018
Modifié(e) : Jonas Lara le 23 Avr 2018
wow, thank you. It is more than i need, i guess it will work perfectly. Let me try it and come back with a feedback.

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Réponses (1)

Pawel Jastrzebski
Pawel Jastrzebski le 24 Avr 2018
Modifié(e) : Pawel Jastrzebski le 24 Avr 2018
I've moved my comment to the answer so the question can be closed. I've also tried to copy your example to show you what I think you're trying to achieve:
% DATA
x = -10:.2:10;
y0 = sin(x);
y1 = y0+2;
y2 = y0-2;
% PLOTTING
f(1) = figure; % create a new figure window
ax(1)= gca(); % handle to the current's figure axis
% Handles to the plot lines.
% Alternatively you could write it as:
% p(1:3) = plot(x, [y0; y1; y2]);
p(1) = plot(x,y0);
hold on
p(2) = plot(x,y1);
p(3) = plot(x,y2);
% USE THE HANDLES TO CHANGE THE PROPERTIES OF THE AXES AND LINES
set(p(1),...
'LineWidth', 0.5,...
'LineStyle', '--');
set([p(2) p(3)],...
'LineWidth', 2,...
'LineStyle', '-');
set(ax(1),...
'XAxisLocation','origin',...
'YAxisLocation','origin',...
'XLim', [-8 6],...
'YLim', [-4 2],...
'XMinorGrid','on',...
'YMinorGrid','on');
set(ax(1).Title,...
'String','Sine plots',...
'Color',[1 0 0],...
'FontSize',14);
set(ax(1).XLabel,...
'String', 'X-label');
set(ax(1).YLabel,...
'String', 'Y-label');
set([ax(1).XLabel ax(1).YLabel],...
'Color',[0 0 1],...
'FontSize',12);
Output:
All of the properties that you can change are listed in the following:

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