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How to create a 3D plot from 2D set of data .

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Nasir Qazi
Nasir Qazi 2013-11-17
回答： Faisal Khan 2018-4-25
%I have a data set
x1 =[ 0 0.12780 0.2145 0.2761 0.3211 0.354 0.379 0.396 0.409 0.417 0.421 0.421 0.417 0.412 0.406 0.394];
x2 = [0 0.025 0.050 0.075 0.100 0.125 0.150 0.175 0.200 0.225 0.250 0.275 0.300 0.325 0.350 0.375];
y=[31.117 37.28 43.13 48.67 53.90 58.840 63.450 67.740 71.740 75.390 78.720 81.680 84.240 86.090 87.230 87.880 ];
% if I plot normally
plot(x1,y); hold on
plot(x2,y);hold off
% attach is the picture
% but how can I plot 3D using this data?
  2 个评论
Walter Roberson
Walter Roberson 2013-11-18
So that we can understand what you are trying to do:
For the first line, please indicate what the x, y, and z coordinates should be for the first two points.
For the second line, please indicate what the x, y, and z coordinates should be for the first two points.

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回答（2 个）

Roger Stafford
Roger Stafford 2013-11-17
编辑：Roger Stafford 2013-11-17
Assuming that when you say "3D" you mean that x1 and x2 are along axes in different dimensions, then do:
plot3(x1,x2,y)
If by any chance you mean that the two curves are to be plotted as a single continuous curve, then do:
p = length(y):-1:1;
plot([x1,x2(p)],[y,y(p)],'y-')
  1 个评论
Nasir Qazi
Nasir Qazi 2013-11-18
编辑：Nasir Qazi 2013-11-18
% with plot3(x1,x2,y)I come up with the following result , though I am looking for two line but it only one line.
% Secondly I am seeking for something like a surface plot. but I don't really know how can I do that .

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Faisal Khan
Faisal Khan 2018-4-25
why not try hold on command to get both the curves on the same figure

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