Extract time series data from figure

16 次查看（过去 30 天）
Felix
Felix 2011-9-29
I have certain data only as .fig files but I want to extract the time series (x- and y points) of a particular graph and have them as a normal variable in my workspace for further analysis.
A first step that might be helpful is to open the fig file as a .mat file with load('Example.fig','-mat') The .fig file (see my dropbox link below) contains 4 figures, I am only interested in the upper part of figure 2 (see arrow http://i27.lulzimg.com/92f4285ead.png ). So I suppose the XDATA and YDATA of figure 2 should be somewhere in the second struct file under children --> .... I cannot find it within this complicated structure, and the variable editor doesn't seem to offer a search function. Can you find it?
http://dl.dropbox.com/u/368757/Example.fig (84MB)

请先登录，再回答此问题。

采纳的回答

Fangjun Jiang
Fangjun Jiang 2011-9-29
Use this example:
f=figure(1);
h=plot(magic(4));
l=findobj(gca,'type','line');
x1=get(l(1),'xdata')
y1=get(l(1),'ydata')
x2=get(l(2),'xdata')
y2=get(l(2),'ydata')
  3 个评论
显示 1更早的评论
Felix
Felix 2011-9-29
So, within the figure window when I go under properties editor and select the line that I want it shows me it's name under "Display Name: ..."
How can I access this object with findobj when I know the display name?
Fangjun Jiang
Fangjun Jiang 2011-9-29
findobj(gca,'type','line','DisplayName',WhateverName).
After running the example code, try get(l(1)) to see all the properties.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Graphics Object Identification 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by