Two graphs in one plot with own RGB hex or decimal code

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Jogibaer
Jogibaer 2017-6-13
评论： Adam 2017-6-15
Hi, I would like to set my own RGB color to my graphs. I did it with single plots, this works, but I can't get it working with two graphs in one plot and own color codes. How? Here is my single plot code:
% figure(6);
plot(f,Yr,...
'LineWidth',1,...
'color', [0/255 177/255 175/255])
xlim([20e6 30e6])
%ylim([4 5])
grid on
title('Admittance Y_r')
xlabel('f[Hz]')
ylabel('Yr(f)')
And here is the plot I would like to set my own RGB color code as well, but doesn't matter how I change the syntax, it doesn't work on the same principle like in the single graph plot.
figure(7);
plot(f,Bn,'green',f,Gn,'black',...
'LineWidth',1)
xlim([20e6 30e6])
%ylim([4 5])
grid on
title('Conductance Gn and susceptance Bn')
xlabel('f[Hz]')
ylabel('Bn and Gn')
Can somebody help me please. I googled for so long, but all "solutions" failed. I'm using MATLAB R2017a with a student license.
best regards Jogibaer
  2 个评论
Adam
Adam 2017-6-13
What exactly is wrong? When I run code similar to yours I get a green plot and a black plot, as expected. I don't have your exact data so I made some up, but that should be irrelevant.
Jogibaer
Jogibaer 2017-6-13
Like I wrote above, I would like to add my own RGB color code for each graph. Concerning the second code, green should be replaced with 0/255 177/255 175/255, the second graph should stay black, but I don't know how to write the syntax to do so.

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回答（1 个）

Adam
Adam 2017-6-14
You'd have to plot them in two instructions to do that, e.g.
plot( hAxes, x1, y1, 'color', [0 0.5 0] );
hold( hAxes, 'on' );
plot( hAxes, x2, y2, 'color', [0 0 0.5] );
  5 个评论
显示 3更早的评论
Jogibaer
Jogibaer 2017-6-14
编辑：Jogibaer 2017-6-14
Thank you very much, now it looks like how I imagined. I had no idea of handles and how to use them in MATLAB, good to know. ^^ For completion, my final plot code:
figure(7);
hAxes = gca;
plot( hAxes, f, Bn,...
'LineWidth',1,...
'color', [0/255 177/255 175/255]);
hold( hAxes, 'on' );
plot( hAxes, f, Gn,...
'LineWidth',1,...
'color', [0/255 0/255 0/255]);
xlim([20e6 30e6])
%ylim([4 5])
grid on
title('Conductance Gn and susceptance Bn')
xlabel('f[Hz]')
ylabel('Bn and Gn')
The image :)
Adam
Adam 2017-6-15
It is very useful to get used to graphic object handles in Matlab and it is more intuitive now that they are proper visible objects. Anything you want to change on a plot you can just do so via the handle that you keep hold of (likewise axes etc) and you can play around with settings to see what you want by using, for example
inspect( hAxes )
and changing settings on there as you please. Then you can put them in code when you are happy. Also just typing
hAxes
on the command line will show you all the properties that you can edit.

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