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

learn more… | top users | synonyms

13
votes
4answers
442 views

How to make a movie from a complex demonstration?

I have a complex Manipulate-based demonstration containing a few sliders and a Setterbar. I would like to make a movie out of it, avi, or whatever else. The ...
13
votes
4answers
611 views

Is it possible to select outliers on a graph and determine the index of the outliers?

I have a large data set of experimental data for which I have determined a theoretical fit. However, for some of the experimental data I took, there was systematic error, leading to the data deviating ...
13
votes
2answers
1k views

How to extract the numerical value of a dynamical variable

I want to inspect interactively an image by selecting points by the mouse pointer. This is easily done by LocatorPane - here is a simplified example: ...
13
votes
1answer
249 views

Why does a variable become real when using the second argument of Dynamic?

Version 9, on Windows 7. Please compare these 2 very simple examples Manipulate[ x, Row[{Manipulator[Dynamic[x], {0, 10, 1/100}]}], {{x, 1}, None} ] and ...
13
votes
1answer
396 views

How to create interrelated sliders?

Say I want a slider that controls the value of $x$ and another slider that controls the value of $2x$, how would I go about it?
13
votes
1answer
135 views

How to retrieve current FaceForm?

The current colour in a Graphics object can be retrieved using CurrentValue["Color"] for use in Dynamic stuff. Example: ...
13
votes
2answers
655 views

Manipulate slider unresponsive after suspend in Linux

I've tested Linux Mathematica versions 7-9 on various Linux distributions, with identical problem: after suspend/resume cycle my Manipulate controls (i.e. sliders&buttons) appear unresponsive, ...
13
votes
1answer
400 views

How do I stop my joystick from rotating a 3D graphic?

I am trying to use Mathematica to illustrate mixed strategies in Game Theory. I want my students to be able to use common joysticks as controllers. What I find, however, is that in addition to doing ...
13
votes
1answer
443 views

Unique[] symbol not properly tracked

In a nutshell, why does this work (change y and see how the value updates) ...
12
votes
5answers
1k views

How can I simulate this animation of checking for prime numbers?

I can only implement a very simple one, I want to make my code look like that. Any better ideas? ...
12
votes
3answers
489 views

Why do buttons with ChoiceDialog freeze the front end?

Pressing the button below will freeze my front end. An unpainted white dialog box comes up, then it completely freezes, and I need to forcibly kill the front end. CPU usage stays at zero during ...
12
votes
3answers
234 views

Selective evaluation of blocks of code in a Manipulate

Is it possible to attach certain pieces of code to certain controls in a Manipulate? For example, consider the following Manipulate ...
12
votes
2answers
550 views

Syntax highlighter shows error for Manipulate when it's inside a Block or a Module

I'm putting my new copy of Mathematica 10 through its paces and I noticed a weird change in the colouring scheme that I find very annoying, and I'd like to get some insight into why it's happening. ...
12
votes
3answers
313 views

In InputField, how to prevent Shift-Return from generating a new cell?

When running the following in a notebook (not a deployed CDF file), it can sometimes be annoying that accidentally pressing Shift-Return breaks out of the user ...
12
votes
2answers
264 views

ShearingTransform and Dynamic

Background: I have a geometric transformation composed of a RotationTransform, ScalingTransform and ...
12
votes
3answers
573 views

How to anchor a Pane's scroll position to the bottom?

Suppose I have a Pane containing some dynamic text, for example that is being updated by a logging function. ...
12
votes
1answer
288 views

How to create a notebook element that can replace itself?

I would like to create a notebook element that can replace itself. Here's an example to illustrate: ...
12
votes
1answer
275 views

Why is my rasterized graphic blank?

Bug introduced in 7.0 or earlier, and persisting through 10.1 or later (OSX 10.10.2) Consider the following code: ...
12
votes
0answers
302 views

Minesweeper beta:How to Dynamic a lot of graphics with high-speed

Recently I want to write a game,Minesweeper.Here is my completed code. ...
11
votes
4answers
821 views

Manipulate BarChart with Mathematica

In the following minimal working example: Manipulate[BarChart[{a,b}],{a,1,2},{b,1,2}] I'd like to be able to control the size of the bars by using some sort of ...
11
votes
7answers
839 views

How to dynamically toggle curves on/off in a crowded Plot?

When multiple curves appear in a single plot, it is useful to interactively turn certain curves on or off to visually compare smaller numbers of curves. It is trivial to put a quick dynamic together, ...
11
votes
2answers
304 views

Make a button that evaluates a function over and over

I would like to have a command "RedoButton" which would make a button (or whatever control is suitable) that when clicked would print the value of a certain function over and over in the same place. ...
11
votes
2answers
540 views

Soft-Match String Comparison

I have a list of names in which I would like to check for duplicates. However, within the list, the duplicates may not show up as exact duplicates of each other - for instance, ...
11
votes
4answers
456 views

Graphics can't be live and editable

Is there a way to construct an interface so that the Code and the Graphics remain in sync? For example I would like to be able to drag/drop and move around different shapes in Graphic while seeing ...
11
votes
3answers
527 views

Plot on command within DynamicModule?

Suppose I have a DynamicModule with all sorts of controls to set some parameters for a graphics object. ...
11
votes
3answers
442 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 ...
11
votes
3answers
277 views

Intermediate display similar to PrintTemporary

Using MMA we often come across situations like the following cityLIST = CityData[#, "Name"] & /@ CityData[]; This code if you evaluate will emit some display ...
11
votes
1answer
588 views

InputField does not update correctly

By fiddling with Vitaliy's solution for a small GUI, I've come accross this particular behaviour of InputField: ...
11
votes
1answer
2k views

How to work around Mathematica hanging when showing a large SparseArray?

Bug introduced in 9.0 and fixed in 9.0.1 In Mathematica 9, if I display any large SparseArray object in the default way (which looks something like ...
11
votes
1answer
234 views

TimeConstrained dynamic change of maximum time

I would like to run a time consuming function: TimeConstrained[f[x],maxseconds] and be able to change maxseconds during running (increasing or decreasing max ...
11
votes
1answer
284 views

Possible bug with second argument of Dynamic

Bug fixed in V 10. According to the documentation, Dynamic Details & Options section, especially: For interactive mouse operations ...
11
votes
2answers
563 views

Dynamic graphics are less responsive inside a Manipulate

I have some code which displays a GraphPlot and allows the user to click on any vertex in the graph to display some information about that vertex in a popup window. ...
11
votes
2answers
360 views

Memory leak in FE?

A very abridged example of what was originally a major leak ...
11
votes
1answer
240 views

Time range selector à la InteractiveTradingChart

I have time series data and I would like to interactively select a part of it. This problem is beautifully solved in the lower part of the InteractiveTradingChart command: I would like to be able ...
11
votes
0answers
63 views

How to service preemptive computations while running a LibraryLink function?

Cross-posted to Wolfram Community The following is from the comparison between WSTP (MathLink) and LibraryLink in the documentation: When the Wolfram Language is waiting for a WSTP application ...
10
votes
3answers
478 views

Mathematica as a report generator

I would like to use Mathematica as a kind of report generator. I'm working in a Mathematica notebook and I want to handle Mathematica like this: 1) I want to define one cell as a text cell. In this ...
10
votes
1answer
1k views

What does the message 'This file contains potentially unsafe …' mean and how serious is it?

I had some Mathematica files on over which recently I have faced to this message: However, after searching, I have seen some blogs in Mathematica SE or in somewhere else about that, but I could not ...
10
votes
2answers
360 views

How to draw the image of a circle under the action of a transformation of the phase flow?

How to draw the image of a circle $x^2+(y-1)^2<1/4$ under the action of a transformation of the phase flow for the equation $\dot{x}=y,\ \dot{y}=-\sin x$? Here $\dot{x}$ means $dx/dt$. Any help or ...
10
votes
2answers
310 views

Localizing variables within a Manipulate

I have a notebook with several examples of very similar computations, each involving the same variable/parameter names of the ingredients used in a final ...
10
votes
2answers
301 views

Mathematica Typing Effect

Here is a Typing Effect in javascript. I could only implement a very simple one: ...
10
votes
2answers
192 views

Synchronizing the camera view of multiple Image3D panels within a Manipulate interface

I'm trying to synchronize the camera view of multiple Image3D panels displayed within a Manipulate interface. A random 3D image ...
10
votes
2answers
355 views

Restrict Sensitivity of Locators in LocatorPane

We can restrict the movement of locators in a LocatorPane as follows: In the following example, the first locator's movement is confined to the x-axis and the ...
10
votes
4answers
405 views

Possible bug in Dynamic

The code below crashes the Mathematica kernel in version 10 (not in V9) every time I run it on Windows and on Mac OS. I've sent it to WRI, but was told that they could not reproduce the crash. Does ...
10
votes
2answers
359 views

Dependent Manipulate sliders

I would like to use dependent sliders in Manipulate. First slider K0 should be independent and varied from ...
10
votes
2answers
293 views

Update only one element in a dynamic grid?

I've got a grid of buttons that each display an image from an array. When a button is clicked, its image changes. ...
10
votes
2answers
247 views

Difference between action of a Slider and a HorizontalGauge

First time posting. I am working on creating some interactive materials for the engineering classes that I teach and have run into an issue that I cannot puzzle out. I am using a slider to allow for a ...
10
votes
2answers
289 views

Two-sided slider getting stuck

I'm implementing a two-sided slider to be able to set upper and lower bound in just one slider: The problem is that it can get stuck when both locators are at the far left: And I'm unable to ...
9
votes
6answers
431 views

How to make text flash for a short period

How could I display text that flashed red for a half second or so and then reverted to black? (Or was put in bold and reverted to normal, etc.)
9
votes
5answers
497 views

Manipulate Exp[I θ]+b Exp[-I θ]

I've uploaded an image showing a demonstration I'd like to create, but I definitely need help. There is a lot of talent on this list, so maybe someone can help me get started learning how to add ...
9
votes
3answers
245 views

Problem with UpdateInterval

I want to monitor current results with Dynamic ...