MATLAB BUILDER EX 1 Guida Utente Scaricare il pdf (Pagina 139)

Utility Library Classes

Field name only This format may be used only in the case of a

1-by-1 structure array and returns the named

field’s value. For example:

x("red") = 0.2

x("green") = 0.4

x("blue") = 0.6

In this example, the name of the Item

property was neglected. This is possible since

the

Item property is the default property

of the

MWStruct class. In this case the t wo

statements are equiv a lent:

x.Item("red") = 0.2

x("red") = 0.2

Single index and field name This format accesses array elements

through a single subscripting notation. A

single numeric index

n followed by the

field name returns the named field on

the

nth array element, navigating the

array linearly in column-major order.

Forexample,considera2-by-2arrayof

structures with fields

"red", "green",and

"blue" stored in a variable x.Thesetwo

statements are equiv a lent:

y = x(2, "red")

y = x(2, 1, "red")

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MATLAB BUILDER EX 1 Guida Utente Pagina 139