how to make a legend for a single point

Question

Thomas Roza 2019-9-17

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/480818-how-to-make-a-legend-for-a-single-point

评论： madhan ravi 2019-9-18

采纳的回答： madhan ravi

在 MATLAB Online 中打开

Hi,

I have a problem with making a legend, I have used this code to make a graph:

figure; hold on
for i = 0:0.005:1
C_vm=(1-i)*C_al+i*C_sic;    % i stands for the folume fraction
Cm_1212_voigt=C_vm(4,4)     % for a isotropic material
plot(i,Cm_1212_voigt,'.','color','green')
end

But when I want to make a legend of this graph made of points, I get a legend of all the points on that line. I just want a legend of a single point. How can i make it happen?

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Answer 1

madhan ravi 2019-9-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/480818-how-to-make-a-legend-for-a-single-point#answer_392314

在 MATLAB Online 中打开

h=plot(i,Cm_1212_voigt,'.g') % inside loop
legend(h,'Points') % outside loop

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Thomas Roza 2019-9-18

在 MATLAB Online 中打开

it works, but how do i edit multiple different points in a graph? in this case it only prints the last legend and not the first, i would like to have them both in the graph?

%% calculation stiffness matrix Voigt
figure; hold on
for i = 0:0.05:1
C_vm=(1-i)*C_al+i*C_sic;    % i stands for the folume fraction
Cm_1212_voigt=C_vm(4,4);     % for a isotropic material
%plot(i,Cm_1212_voigt,'.','color','green')
h=plot(i,Cm_1212_voigt,'.g') % inside loop
end
legend(h,'voigt') % outside loop
%% calculation stiffness matrix Reuss
for i = 0:0.05:1
C_rm=inv((1-i)*inv(C_al)+i*inv(C_sic));
Cm_1212_reuss=C_rm(4,4);
r=plot(i,Cm_1212_reuss,'.r')
end
legend(r,'reuss')

madhan ravi 2019-9-18

You put some random code with missing datas and you ask one question. With a hunch an answer is being given and after a while another comment again with missing datas and then you expect an answer by magic?

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