obj_set_parent¶
obj_set_parent sets the parent object.
-
bool = obj_set_parent(obj, parent)
Return Value
bool is TRUE (1), if the function could set the parent successfully.
Parameters
-
obj
obj is the object created with obj_create.
-
parent
parent is an object created with obj_create.
Comment
The obj_set_parent function copies all key-value pairs from parent to obj and saves a reference of the parent object. Example:
o = [. a = 1,
b = 2
];
o1 = [. c = 3,
d = 4
];
o1.set_parent(o);
o1 contains the variables a, b, c, d. Instead of set_parent
the
following syntax can be used to set the parent object:
o1 = [. __parent__ = o;
c = 3,
d = 4
];
If o contains pointers to objects, only the pointers will be copied. Before UniPlot R2013.2 a copy of all objects were created.
obj “inherits” all properties of its parent. The child object will also inherit all parent methods.
If obj.name(1,2)
is invoked and obj does not possess a method name
, the
parent function will be invoked obj.parent.name(1,2)
. If the parent does not
possess a function a method name
its parent object is invoked
obj.parent.parent.name(1,2)
and so on.
History
Version | Description |
---|---|
R2013.2 | Only references to objects are copied. See above. |
4.1.0 | New. |
See also
id-1665813