How to modify a sphereModel

Question

Alonso Figueroa 2019-9-24

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https://ww2.mathworks.cn/matlabcentral/answers/481908-how-to-modify-a-spheremodel

回答： Athul Prakash 2019-9-27

Hello, I am trying to modify the radius of a set sphereModel object to 1. So far I have tried modifying the radius through the Parameters of the object and this field is read-only. Also, if I try to modify to access the Radius directly the error apears to be that this is a dependant variable. any ideas on how to solve this issue?

roi.Bead1 = VBody_disection(Bead_model.vertices)
model.Bead1 = pcfitsphere(pointCloud(roi.Bead1), maxDist);
model.Bead1.Parameters(4) = 1;
model.Bead1.Radius = 1;

Thank you

Alonso

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Answer 1

Athul Prakash 2019-9-27

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Hi Alonso,

There's usually a reason for attributes to be set as 'Read Only' for a specific class. If you actually changed those, it would probably lead to an inconsistency, since 'Radius' is a Dependent variable.

The attributes you mention can only be set by calling the constructor.

Hence, I would recommend creating a new sphereModel object: you may set the Radius to the modified value and use the values from 'model.Bead1' for all other attributes.

Hope it Helps!