Using the C++ Math Library

Assigning Values to a Structure Field

To assign an initial value to a field (creating the field if it doesn't exist) or to modify the value of an existing field, use structure array indexing on the left-hand side of the assignment operator. For example, to change the description field of the seventeenth image, you'd write this code:

images(17).field("description") = "Ferris Wheel";

images(17).description = 'Ferris Wheel' performs the same operation in MATLAB.

Accessing the Contents of a Structure Field

Assigning Values to Elements in a Field