How I can extract an object entry from an index of cell array?

Hello.

I want to extract an object which is saved in specific index of cell array.

I need to extract it because I cannot access object properties via 'dot' and cell array index.

I have a object which has an property named "dist"

I saved the object into an cell array and I later on I need to change the object proeprty and i cannot access the property via cell array indexing.

is there any way to extract the object from cell array to change the property?

 function calculateDistance(obj)
            
               tempCell = cell(1,100);
               counter = 1;
               tempCell{1,counter} = MyObject
               tempCell(1,1).dist = 100;
               end
            end
                                          
 end

Answer 1

[Ameer Hamza]

Use the curly brackets to access the content inside the cell arrays

tempCell{1,1}.dist = 100;

[Mehrdad Asadi]

Hello, It doesnt work.

Unable to perform assignment because dot indexing is not supported for variables of this type.

Error in Lane/calculateDistance (line 48)

tempCell{1,j}.dist = 100;

[Ameer Hamza]

Can you show the class of the object in cell array

disp(tempCell{1,1}.dist)

How did you define 'MyObject'?

[Mehrdad Asadi]

Dear Hamza, i think there is no problem with the object and class defintion.

because 'dist' value assignement works when I use simple object.propery = x but not work when I want to assign its property using cell array indexing.

classdef VehicleClass < handle
    properties
        dist = Inf;
methods
        function obj = VehicleClass(dist)
            obj.dist = dist(1);
        end
    end
end

[Ameer Hamza]

Following code works fine.

First i defined the class like this

classdef VehicleClass < handle
    properties
        dist = Inf;
    end
    methods
        function obj = VehicleClass(dist)
            obj.dist = dist(1);
        end
    end
end

and then run the following code

C = cell(1,10);
for i = 1:10
    myObj = VehicleClass(10);
    C{i,1} = myObj;
    C{i,1}.dist = rand();
end

You can compare it with your code to see if there is any difference in your method.

[Mehrdad Asadi]

Thank you.