Revisions to How to eliminate the need to double evaluate a Manipulate so that a Module in its Initialization section works?

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edited Apr 13, 2017 at 12:56

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The problem is that the first time Manipulate is executed makeObj[] is not yet defined when obj is initialized. But if you put the definition of makeObj[] just before calling it, it works !

See this related post that lead to this question How can you give a Module a context and have its local variables and Modules belong to that context?How can you give a Module a context and have its local variables and Modules belong to that context?. It contains many different ideas about representing simple objects in MM.

Manipulate[ x; init[obj]; get[obj] , Button["run", x++] , {x, None} , {{obj, makeObj[] := Module[{Obj, u}, init[Obj] ^:= u = {1, 2, 3}; get[Obj] ^:= {u, Date[]}; Obj ]; makeObj[]}, None} , TrackedSymbols :> {x} ]

The problem is that the first time Manipulate is executed makeObj[] is not yet defined when obj is initialized. But if you put the definition of makeObj[] just before calling it, it works !

See this related post that lead to this question How can you give a Module a context and have its local variables and Modules belong to that context?. It contains many different ideas about representing simple objects in MM.

Manipulate[ x; init[obj]; get[obj] , Button["run", x++] , {x, None} , {{obj, makeObj[] := Module[{Obj, u}, init[Obj] ^:= u = {1, 2, 3}; get[Obj] ^:= {u, Date[]}; Obj ]; makeObj[]}, None} , TrackedSymbols :> {x} ]

The problem is that the first time Manipulate is executed makeObj[] is not yet defined when obj is initialized. But if you put the definition of makeObj[] just before calling it, it works !

See this related post that lead to this question How can you give a Module a context and have its local variables and Modules belong to that context?. It contains many different ideas about representing simple objects in MM.

Manipulate[ x; init[obj]; get[obj] , Button["run", x++] , {x, None} , {{obj, makeObj[] := Module[{Obj, u}, init[Obj] ^:= u = {1, 2, 3}; get[Obj] ^:= {u, Date[]}; Obj ]; makeObj[]}, None} , TrackedSymbols :> {x} ]

edited body

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edited Jan 25, 2012 at 23:06

faysou

11.1k
3
52
159

The problem is that the first time Manipulate is executed makeObj[] is not yet defined when obj is initialized. But if you put the definition of makeObj[] just before calling it, it works !

See this related post that lead to this question How can you give a Module a context and have its local variables and Modules belong to that context?. It contains many different ideas about representing simple objects in MM.

Manipulate[ x; init[obj]; get[obj] , Button["run", x++] , {x, None} , {{obj, makeObj[] := Module[{objObj, u}, init[obj]init[Obj] ^:= u = {1, 2, 3}; get[obj]get[Obj] ^:= {u, Date[]}; objObj ]; makeObj[]}, None} , TrackedSymbols :> {x} ]

The problem is that the first time Manipulate is executed makeObj[] is not yet defined when obj is initialized. But if you put the definition of makeObj[] just before calling it, it works !

See this related post that lead to this question How can you give a Module a context and have its local variables and Modules belong to that context?. It contains many different ideas about representing simple objects in MM.

Manipulate[ x; init[obj]; get[obj] , Button["run", x++] , {x, None} , {{obj, makeObj[] := Module[{obj, u}, init[obj] ^:= u = {1, 2, 3}; get[obj] ^:= {u, Date[]}; obj ]; makeObj[]}, None} , TrackedSymbols :> {x} ]

The problem is that the first time Manipulate is executed makeObj[] is not yet defined when obj is initialized. But if you put the definition of makeObj[] just before calling it, it works !

See this related post that lead to this question How can you give a Module a context and have its local variables and Modules belong to that context?. It contains many different ideas about representing simple objects in MM.

Manipulate[ x; init[obj]; get[obj] , Button["run", x++] , {x, None} , {{obj, makeObj[] := Module[{Obj, u}, init[Obj] ^:= u = {1, 2, 3}; get[Obj] ^:= {u, Date[]}; Obj ]; makeObj[]}, None} , TrackedSymbols :> {x} ]

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answered Jan 25, 2012 at 22:54

faysou

11.1k
3
52
159

The problem is that the first time Manipulate is executed makeObj[] is not yet defined when obj is initialized. But if you put the definition of makeObj[] just before calling it, it works !

See this related post that lead to this question How can you give a Module a context and have its local variables and Modules belong to that context?. It contains many different ideas about representing simple objects in MM.

Manipulate[ x; init[obj]; get[obj] , Button["run", x++] , {x, None} , {{obj, makeObj[] := Module[{obj, u}, init[obj] ^:= u = {1, 2, 3}; get[obj] ^:= {u, Date[]}; obj ]; makeObj[]}, None} , TrackedSymbols :> {x} ]

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