Questions relating to the dynamic family of functions in Mathematica, such as Dynamic, DynamicModule and Manipulate.

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2
votes
1answer
210 views

Dynamically Updating Function

I use Mathematica 8 and am working with DynamicModule. I'm trying to enter a function in an InputField then later apply it to two values entered in subsequent Input Fields. The function just does not ...
3
votes
1answer
130 views

How can I get precise frame rates in dynamic?

I've been the Spritz sdk in my ios apps, and I love it. For funsies I wanted to see how much less code a mathematica version would take! Using dynamic I get a nice result, shown below in code. ...
1
vote
2answers
163 views

Is it possible restore initial values after modify a control in manipulate?

I used to program in Visual Basic, but in Mathematica I have not seen some kind of restore default values after any user modification command in the Manipulate ...
6
votes
0answers
262 views

How to restrict the mouse cursor to stay within a box?

I'm trying to use Mathematica to write small games, and I find that it would help to restrict the player's mouse into the game window (just like other games do). Is there any way to achieve this? ...
2
votes
3answers
219 views

How to create locked sliders with the ability of unlocking them?

This creates two locked sliders DynamicModule[{p = {2 π, 0}, r}, {Slider2D[Dynamic[r]], Slider2D[Dynamic[1 - r, (r = 1 - #) &]]}] How can I add a check ...
5
votes
1answer
104 views

FlipView can't handle CurrentValue[“MouseOver”]. Kernel crash

Is this code crashing your Mathematica session? (it can so look out :P) ...
5
votes
2answers
172 views

Entering scientific notation in an InputField

I am trying to make an InputField for numeric input, but InputField[Dynamic[num],Number] Does not allow the user to type ...
2
votes
1answer
84 views

Why can I edit only one character of the output of a Dynamic expression?

Try this: DynamicModule[{foo = \[Placeholder]}, foo] Note how we're able to edit the placeholder in the output, e.g. replace it with 42: ...
4
votes
2answers
267 views

DynamicModule/Dynamic CheckboxBar Slow for Large Lists

I am trying to create a dynamic construct that takes a large list of expressions and allows the user to interactively select any number of entries for further manipulation. This is what I have ...
5
votes
2answers
103 views

How to robustly apply ToBoxes to a Dynamic expression?

Inserting a Dynamic object in a boxform expression messes up syntax colouring. See the following example. where the variable ...
4
votes
2answers
149 views

DynamicModule updating unexpectedly

I have cut down a DynamicModule that was updating unexpectedly and found the following behaviour I don' t understand. If I do this I get one random value as expected ...
3
votes
1answer
97 views

Alternate controls in manipulate

Is there a way to have two controls that govern a single variable in a Manipulate? Specifically, I am using a Locator to select an {x,y} coordinate, but I would also like the user to be able to ...
9
votes
3answers
239 views

Problem with CurrentValue[“MouseOver”] when graphics are wrapped with Deploy

Bug reproduced in: V 9.0.1 - 10.1 Please take a look at following toy example: ...
2
votes
1answer
207 views

Render dynamic Graphics objects static

As was discussed in the comments of another question (MathLink Graphical Output (Plots) to File), Graphcis objects produced by commands such as ...
2
votes
2answers
185 views

Solving a dynamic program via recursion

I'm trying to use recursion to solve a joint inventory/ dynamic pricing problem as in monahan, petruzzi and zhao 2004. I tried to solve for y[t] and ...
4
votes
2answers
169 views

TrackedSymbols affected by CurrentValue. Another problem with SetDelayed(:=)+OwnVales in Initialization

It is MWE, only a Disk[] that should print "Click" when clicked. Also "date... updating" ...
6
votes
1answer
148 views

How to inherit options by scoping?

Consider the following example: you have a function framed producing a cell with a button that, when pushed, calls framed again. ...
0
votes
1answer
241 views

GUI and Dynamic update problems

I have made many functions that connect to a MySQL database perform operations then export exel spreadsheet. I also import spreadsheet data into the database. I would like to get many of these ...
5
votes
1answer
106 views

Why does a heavy background slow LocatorPane from updating, even if only the locators are Dynamic?

I'm having some trouble getting a dynamic plot to operate efficiently, and I think I've tracked down at least part of the problem to some pretty weird behaviour on the part of ...
0
votes
1answer
128 views

Why do InputFields not respond in Manipulate utilizing FindGeometricTransform?

In the following code changing the InputField does not result in observing changes in a result from FindGeometricTransform, but ...
0
votes
1answer
125 views

Setting plot size within vector; dynamic slider (two part question)

I have a question about the size of a plot in mathematica. I'm working on some differential equations (a simplified model of heat transfer in a building). I've programmed it so that you can set ...
2
votes
1answer
74 views

How to dynamically update a variable by using mouse over?

I want to extract the Graphics type when I hover my mouse over an object, but I failed to do so. Below is the code I am working on. Any suggestions are welcome ...
3
votes
1answer
191 views

How can I selectively trigger computations in Manipulate?

I have a Manipulate that uses RandomVariate and Random that I would like to have redraw and ...
2
votes
0answers
43 views

Differences in SetDelayed (:=) in Module and DynamicModule [duplicate]

I have a question about the differences in SetDelayed assignment functions in a Module and in a ...
2
votes
2answers
117 views

DynamicModule with intermediate expressions

I am trying to generalize a Manipulate construct into a DynamicModule one to try and include smoother controls, but I seem to be ...
1
vote
1answer
131 views

TabView switches tab number without user input in first evaluation

I've attempted to use TabView in a Manipulate to display sets of controls and alter a "display" associated with each set of ...
3
votes
1answer
159 views

Dynamic generation of Buttons

The Project I am trying to dynamically turn on/off the display of data for a circos-esque plot that I generated. The Code I have data stored in mfData and a ...
2
votes
2answers
99 views

How could I change the apperance of a button when some hard computation is finished?

I want to have some bottons inside manipulate to calculate some time consuming functions. For example the following code changes its color after the calculation of Total[Range[123456000]] is ...
2
votes
1answer
238 views

Trouble using If[] within TabView Manipulate control

If I place an If in the "body" of a Manipulate as in: ...
0
votes
2answers
165 views

trouble with Dynamic range in SetterBar

It appears that I can set the range to a Dynamic variable in a Manipulate control, but not in a ...
2
votes
0answers
82 views

Is there a function similar to SQL's Iserror? [duplicate]

I have an output which I want to hide if there is an error otherwise display it. The output is a Dynamic[output] so I can't simply use something like ...
1
vote
2answers
140 views

Rate of change of dynamic variable

I have made a program that goes like this, the goal is to estimate the remaining time of a function (it is running a bunch of solveChase[] functions with different parameters which can be seen in the ...
0
votes
2answers
195 views

Dynamically change the variables plotted against in Plot3D

This question posed by @Cam is the closest I can find to my question but I feel that the answers don't really guide me in the way in which I'd like to proceed.... How do I dynamically change ...
0
votes
1answer
178 views

How to build an interface that plots an equation given as text by a user?

I would like to create a window where a student may enter an equation and, by clicking on a button, the function gets plotted. In the original Spanish: Quiero realizar una ventana en la cual el ...
4
votes
0answers
189 views

DynamicModule, SaveDefinitions and global functions

Unfortunately, I had not checked stackoverflow, because there, the exact same behavior was already reported. Please see the Q&A "SaveDefinitions considered dangerous". Up-front, I'm on Ubuntu ...
0
votes
1answer
121 views
8
votes
3answers
234 views

How to allow ContinuousAction on something that is not all

I have this code: DynamicModule[{r = 1}, Grid[{{Slider[Dynamic[r]], SpanFromLeft}, {f[Dynamic[r]], g[Dynamic[r]]}}]] While I move the slider, $f$ ang $g$ are ...
4
votes
2answers
277 views

How to add the pause button to that dynamic stopwatch?

Referring to How to make a dynamic stopwatch? Timers can now be created with timer = makeTimer[] and utilised with actions such as ...
1
vote
1answer
324 views

dynamically set fit parameters and models with FindFit

I want to fit a gaussian profile by setting some values dynamically, but FindFit returns an error and i can't see the problem. with a given gaussian: ...
11
votes
3answers
421 views

Drawing an arrow pointing at the “Enable Dynamics” button

Sometimes my students are given Mathematica notebooks as part of an assignment, and asked to go through some demonstrations contained in the .nb file. A lot of times I get complaints that the "graphs ...
1
vote
1answer
74 views

InputField Insertion Point Movement

I am trying to make the Return Key move the insertion point to the end of the input field's text. Please see the example below for the problem I am facing. Namely, when the return key is pressed, the ...
0
votes
1answer
77 views

Trouble avoiding computation in DynamicModule when input field is not defined [duplicate]

I'm having trouble detecting when my InputForm supplied String variable has a value. After looking at: How to compute values only if input fields are filled? I tried a StringQ test: ...
2
votes
1answer
109 views

Manual CellGrouping option causes crash at cell evaluation

Update: Try to reproduce this behaviour with CellGrouping set to manual. To do that: either evaluate ...
5
votes
3answers
385 views

How to change the color of a button while it is pressed

I want to change the color of a button while it is pressed, pause for a short time and then change the color back to the original color. I can't seem to figure out how to do this (tried various forms ...
9
votes
2answers
191 views

Asynchronous evaluation on EventHandler

How can I make this progress bar appears when I press Enter? The Button Evaluate works just fine, but when Enter is pressed it jumps the progress bar. It would be ...
5
votes
1answer
203 views

How to make a piece of a pie chart change color upon clicking it?

I am trying to use the EventHandler and have managed to make the text change color upon clicking it, but cannot seem to make each piece of the pie chart change ...
1
vote
1answer
94 views

Issue with DateListPlot and Dynamic List

Imagine that we are getting readings from an external device (ie Arduino) at a given interval of time. We'll simulate the reading as follows. ...
0
votes
1answer
87 views

Use a pre-computed list instead of RandomInteger

I would like to replace RandomInteger[{1, 10}, {10, 10}] in the following code: ...
3
votes
1answer
334 views

Combine a dynamic module with a manipulation

I would like to combine a dynamic module with a manipulation, whilst maintaining the functionality of both. I have tried things like Show and ...
3
votes
1answer
96 views