Axis change - Is it possible to get the data of the new plot?

5 次查看（过去 30 天）
Thalles Leite
Thalles Leite 2016-8-5
评论： DGM 2025-7-14
Hi,
I have a plot, for example, a surface of a sphere, and I'm changing the axis to view a semi-sphere.
Is it possible to get the data of this new plot?
Thanks

请先登录，再回答此问题。

回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2016-8-5
编辑：Azzi Abdelmalek 2016-8-5
Changing the view will not change your data. If you want to get your data from the plot
plot(1:10)
h=findobj('type','line')
x=get(h,'Xdata')
y=get(h,'Ydata')
  4 个评论
显示 2更早的评论
DGM
DGM 2025-7-14
Ran in:
In order to get things from a surface object, you need to query the surface object, not the figure.
% an example
Z = peaks(10);
hs = surf(Z);
zfromsurf = hs.ZData
zfromsurf = 10×10
0.0001 0.0013 0.0053 -0.0299 -0.1809 -0.2465 -0.1100 -0.0168 -0.0008 -0.0000 0.0005 0.0089 0.0259 -0.3673 -1.8670 -2.4736 -1.0866 -0.1602 -0.0067 0.0000 0.0004 0.0214 0.1739 -0.3147 -4.0919 -6.4101 -2.7589 -0.2779 0.0131 0.0020 -0.0088 -0.0871 0.0364 1.8559 1.4995 -2.2171 -0.2729 0.8368 0.2016 0.0130 -0.0308 -0.4313 -1.7334 -0.1148 3.0731 0.4444 2.6145 2.4410 0.4877 0.0301 -0.0336 -0.4990 -2.3552 -2.1722 0.8856 -0.0531 2.6416 2.4064 0.4771 0.0294 -0.0137 -0.1967 -0.8083 0.2289 3.3983 3.1955 2.4338 1.2129 0.2108 0.0125 -0.0014 -0.0017 0.3189 2.7414 7.1622 7.1361 3.1242 0.6633 0.0674 0.0030 0.0002 0.0104 0.1733 1.0852 2.6741 2.6725 1.1119 0.1973 0.0152 0.0005 0.0000 0.0012 0.0183 0.1099 0.2684 0.2683 0.1107 0.0190 0.0014 0.0000
<mw-icon class=""></mw-icon>
<mw-icon class=""></mw-icon>
Probably wasn't relevant, but for tools like fsurf() or fimplicit(), changing the view will change the data stored in the object.
% an example
hfs = fsurf(@(x,y) 5*besselj(1,hypot(x,y)));
axis equal
% for comparison
axis([-5 5, -5 5, -2 3])
drawnow
size(hfs.ZData)
ans = 1×2
1 4865
<mw-icon class=""></mw-icon>
<mw-icon class=""></mw-icon>
% changing the view changes the data
axis([-4 4, -4 4, 0 3])
drawnow
size(hfs.ZData)
ans = 1×2
1 3527
<mw-icon class=""></mw-icon>
<mw-icon class=""></mw-icon>

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by