Error using affine2d.empty

2019 3 28
1 个回答
更新时间：2019 10 30
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0 个投票

Hi there,
I repeatedly received this error message while running the imregtform function. I wonder what can I do to solve it? It seems like nothing to do with my input data. But totally the problem in affine2d.empty().
Error using affine2d.empty
Abstract classes cannot be instantiated. Class 'affine2d' inherits abstract methods or properties but does not implement them. See the list of methods and
properties that 'affine2d' must implement if you do not intend the class to be abstract.
Error in imregtform>parseInputs (line 255)
parser.addParamValue('InitialTransformation',affine2d.empty(),@checkInitialTransformation);
Best,
Clover

6 个评论
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TADA
TADA 2019-3-28
if you try running affine2d.empty(), you will see that it generates an empty affine2d vector, so thats not the problem...
try sharing your code and maybe we can help you
Xiaochun Xu
Xiaochun Xu 2019-3-28
编辑：Xiaochun Xu 2019-3-28
Thanks for your feedback!!! I actually tried and got the same error.
Error using affine2d.empty
Abstract classes cannot be instantiated. Class 'affine2d' inherits abstract methods or properties but does not implement them. See the list of methods and
properties that 'affine2d' must implement if you do not intend the class to be abstract.
Is there any problem with my affine2d (attached)??? I am using a HIPPA compliant laptop, I don't know if this will affect the code running?
TADA
TADA 2019-3-28
It works for me on 2017b... Try typing
which affine2d -all;
Maybe you have another class overriding the built-in one?
TADA
TADA 2019-3-28
Oh, you did override it.... Try renaming your class and file into something else
Xiaochun Xu
Xiaochun Xu 2019-3-29
You saved me!!! Thank you!!!!
TADA
TADA 2019-3-29
Cheers :)

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回答（1 个）

Ba Mo
Ba Mo 2019-10-30
编辑：Ba Mo 2019-10-30

0 个投票

I have had this problem for a couple of months now. i'm glad this was posted just 48 hours ago!
the same goes for the pReLu layer and the maeRegressionLayer in the deep-learning toolbox
I didnt post a question, because I feel the matlab deep learning toolbox is still developing.
for search-indexing, i will paste the text message of this error:
Abstract classes cannot be instantiated. Class 'maeRegressionLayer' inherits abstract methods or properties but does not implement them. Use meta.abstractDetails to see the list of methods and properties that 'maeRegressionLayer' must implement if you do not intend the class to be abstract.
Abstract classes cannot be instantiated. Class 'preluLayer' inherits abstract methods or properties but does not implement them. Use meta.abstractDetails to see the list of methods and properties that 'preluLayer' must implement if you do not intend the class to be abstract.

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Ba Mo
Ba Mo
2019-10-30

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