how to extract data from 2D graph?

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Safwana Razak
Safwana Razak 2019-1-7
评论： Safwana Razak 2019-1-8
Hi,
I got 2D graph like attacment. how to extract the data from .jpg? i do convert it in .fig but i have error:
"No appropriate method, property, or field 'ZData' for class 'matlab.graphics.primitive.Image'.
Error in test123 (line 12)
z = dataObjs(1).ZData"
Thanks untitled.jpg

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采纳的回答

KSSV
KSSV 2019-1-7
See this file exchange: https://in.mathworks.com/matlabcentral/fileexchange/7173-grabit
If you have .fig,,,you can get the handles of the figure and the handles have XData and YData.

更多回答（1 个）

madhan ravi
madhan ravi 2019-1-7
https://www.mathworks.com/matlabcentral/answers/100687-how-do-i-extract-data-from-matlab-figures#answer_110036 - save your graph as .fig instead of .jpg ("No appropriate method, property, or field 'ZData' for class 'matlab.graphics.primitive.Image'. )
  1 个评论
Safwana Razak
Safwana Razak 2019-1-8
If i get my graph from report format like pdf or word or .jpg? when i convert into .fig i got the error mgs:
"No appropriate method, property, or field 'ZData' for class 'matlab.graphics.primitive.Image'.
Error in test123 (line 12)
z = dataObjs(1).ZData"

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