What is this cdata stands for?
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I see to some of the functions the cdata as follows:
model.cdata = [];
model.alpha = [];
model.xdata = [];
model.ydata = [];
model.zdata = [];
model.parent = [];
model.handles = [];
model.texture = '3D';
tag = tempname;
model.tag = ['vol3d_' tag(end-11:end)];
What is this Cdata means? And generally, what this . [dot] and the parameter that follows mean?
回答（2 个）
Ameer Hamza
2018-5-24
1 个投票
Dot notation is used to access the properties of a class in MATLAB. For more details refer here: https://www.mathworks.com/help/stateflow/ug/identify-data-using-dot-notation.html. The CData property usually represents the image data, i.e. the RGB value of pixels. For more information refer here: https://www.mathworks.com/help/matlab/ref/matlab.graphics.primitive.image-properties.html#d119e542055.
3 个评论
Stelios Fanourakis
2018-5-24
Ameer Hamza
2018-5-24
Not the metadata of the DICOM image. But it will contain the grayscale values of the DICOM image.
Walter Roberson
2018-5-24
The code appears to be initializing a data structure that will later be filled out with actual data. In that actual data, cdata will likely be image data, perhaps from dicomread() . As Ameer indicates, it is unlikely that anyone would use cdata as the name of a field to store DICOM metadata.
Jan
2018-5-24
1 个投票
Either . accesses the properties of class objects, or it is used to address fields of a struct. See doc struct .
As soon as you show us, how "model" is defined, it is immediately clear, which kind of dot notation is used here.
The name "cdata" can be chosen freely. Together with the other names it seems, like model is a GUI element. Then see Ameer's answers.
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2018-5-24
2018-5-24
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