How to search through nested property's values of the class array?
6 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Assume we have array of class objects. Our class is a subclass of the handle class. We can use findobj function to find handle objects by first-level property's value. It's ok.
For example, a class structure:
className
|——property1
|——property2
|——structproperty1
———|——innerProperty1
———|——innerProperty2
A findobj function will return results only if every structure field is filled. Below is an example.
b = 1x1234 className;
structToFind = struct ('innerProperty1', 10, 'innerProperty2', 20);
H = findobj (b, 'structproperty1', structToFind);
I want to search className handle objects by innerProperty1. Is there any way to make it possible?
0 commentaires
Réponses (2)
Tejas
le 22 Mar 2016
‘findobj’ matches the properties with in an object to find a matching object with the specified property.
As you are looking to match inner properties, I am not sure ‘findobj’ can be helpful. If you are open to implementing your own way of achieving this then the following might be useful.
Let us suppose your objects belong to class that looks like this:
classdef WithStruct < matlab.mixin.SetGet
properties
struct_prop
end
methods
function obj = WithStruct
val1 = randi(100); val2 = randi(50);
obj.struct_prop.inner1 = val1;
obj.struct_prop.inner2 = val2;
end
end
end
I am using ‘ structfind ’ from File Exchange to find the matching object. You could implement something that does this which is more tailored to your requirements.
>> h = [WithStruct WithStruct];
>> structfind(cell2mat(get(h,'struct_prop')),'inner1',49)
ans =
1 % index of the matching object in ‘h’ array
0 commentaires
Voir également
Catégories
En savoir plus sur Graphics Object Programming dans Help Center et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!