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

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1answer
306 views

Function that evaluates in notebook does not evaluate in CDF

I am trying to access the values of a dynamic value outside function package. Within the function package, the function is defined under the Dynamic module option. There is an error with this. I ...
5
votes
1answer
103 views

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

Is this code crashing your Mathematica session? (it can so look out :P) ...
5
votes
1answer
153 views

How to make MousePosition more reliable

This takes a little patience to reproduce, but I got a screenshot of it in version 9 on Mac OS X 10.7.5: With a small Graphics object, it occasionally happens that ...
5
votes
0answers
71 views

Graph: PropertyValue changes and Dynamic

I almost never work with Graph in Mathematica but lately I helped someone with it. For this, I tried to make an animation using ...
4
votes
4answers
224 views

How to avoid writing $K$ loops?

I want to evaluate a mathematical function of $K$ variables each of variables varying between 1:N. One way to do this is writing $K$ loops and varying variables accordingly, as shown below: ...
4
votes
3answers
151 views

Using Mouseover to change the appearance of a button without writing the button specification twice

When I code in Mathematica, I often find myself having to repeat large chunks of code for a function to work. The latest example of this is a color changing button that prints when clicked, code shown ...
4
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2answers
294 views

How can I change a Slider's appearance?

I am using Mathematica 9.0 and Windows 7. I want to create a Slider that looks like the following: I tried the following: ...
4
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2answers
179 views

How to execute a function each time the slider is dragged?

I've created a function f and a slider: Slider[Dynamic[y],{1,4}] How to execute/call f ...
4
votes
2answers
422 views

How can one popup menu be used to add another?

I'm trying to construct a GUI that changes depending on what's chosen in certain popup menu's. For example: The default state of the menu is condition one, but when the first PopupMenu is selected ...
4
votes
3answers
340 views

How can I compare a dynamic variable with a literal in Mathematica?

I'm doing a Mathematica Notebook and I want to make an alarm clock. Something like this: ...
4
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2answers
92 views

Write GUI to select spheres in a grid

I'd like to generate a code that: 1) starts with a grid of circles (in general, it won't be a square grid) 2) allows the user to choose some of those circles 3) allows the user to choose the type of ...
4
votes
3answers
146 views

Dynamic ListLinePlot

I have a list of lists looking like this: {{{x1, y1}, {x2, y2}}, {x1, y1},...}}. Furthermore I have defined a legend, which is taken from the filenames. Now I want ...
4
votes
2answers
677 views

Moving From Dynamic Module to Manipulate

In trying to implement Vitaly's suggestion about how to take control of Locator events, I have been able to make headway using ...
4
votes
2answers
207 views

How to set the timeout of the preemptive link?

I apologize if this is a RTFM question, but I couldn't find this in the docs. How can I set the timeout of the preemptive link? For example: ...
4
votes
4answers
691 views

How to change color dynamically?

I am new to Mathematica and want to change the FillingStyle Dynamically in this Plot. I want ...
4
votes
4answers
148 views

Make a slider controlling a generated character's code value

If I execute the following code: char = 97; Slider[Dynamic@ToExpression@FromCharacterCode@char, {0, 5}] the slider will fail to change the value of ...
4
votes
3answers
484 views

Dynamic[] and Print[] [duplicate]

Possible Duplicates: Intermediate display similar to PrintTemporary Estimating progress on plots How to create a progress bar? How to determine how much of a table is generated? I'm ...
4
votes
3answers
196 views

Is it possible to replicate the “magic” of OptionPatterns[] with DynamicModule's local variables?

Creating richer interactive interfaces that are generated by a DynamicModule invariably requires more complex data structures and in particular, a larger argument ...
4
votes
2answers
202 views

Tracing a path on a polar coordinate grid

I attempt to trace the path of a point when shift-dragged on a polar coordinate as shown on the picture below. But I only managed to snap the point to the grid. Insight on how to accomplish this? Any ...
4
votes
3answers
410 views

Slow image manipulation

This is some extremely simple code that shows an image and manipulates a circle (that will be used to select a region of the image to analyze). All those Dynamics ...
4
votes
1answer
263 views

Evaluation inside Button stops after some seconds

I would like to trigger a long calculation inside a dynamic module with a Button. It seems that the evaluation stops without an error-message after some seconds. I made a test outside the a dynamic ...
4
votes
2answers
146 views

Fill curve betwen specified abscissa points [duplicate]

I am plotting the Maxwell-Boltzman distribution of molecular speeds. I want to be able to select a region to integrate using a manipulate function. Then I want to have that same region filled in on ...
4
votes
1answer
96 views

Question about usage of Style as Dynamic object

I saw a Dynamic snippet in this answer, which wrote ...
4
votes
1answer
162 views

Automatically tracing and keeping ViewPoints in a list while manually rotating 3D graphics

I will need to make a video from the manual rotation of a 3D graphics. In order to do this, I will need to record the set of all view points that I made during rotation. There is method that we can ...
4
votes
2answers
265 views

How can I emit a sound only during a mouseover?

Emitting a constant sound or note (no interruptions) for a fixed duration is easy, but a dynamic duration, not so easy.
4
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2answers
2k views

Using a Slider to manipulate a Plot

Why does this work (displays the curve): Graphics[Plot[Sin[x], {x, 0, Pi}]] and this doesn't (no curve) ...
4
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2answers
71 views

Button that starts an evaluation which is monitored with a progress indicator

I have a DynamicModule in which I which I wish to start an operation (actually import files) with a button. I would like to monitor the progress with a ...
4
votes
2answers
145 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 ...
4
votes
3answers
352 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 ...
4
votes
1answer
136 views

Using Dynamic with UpdateInterval and EventHandler Together

I've been having some difficulty with the aforementioned use of these three functions/options and would greatly appreciate some help. I know that they're is probably an easy way of making a disk move ...
4
votes
1answer
310 views

Execute code when file is modified

I have a function the takes some time to complete. The function imports data from a .csv, parses it, and plots certain vectors from there. The .csv is constantly being updated from an external ...
4
votes
3answers
211 views

How can I create a custom control which evaluates to a list of values or replacements?

I have a set of variables which are used in various places in my calculations (solving a system, initial conditions, etc.). In order to make this easier to deal with, I want to make a control-like ...
4
votes
1answer
91 views

Unwanted interaction between instances of a Manipulate function

The function trajectory below is defined in terms of Manipulate and calls the auxiliary function ...
4
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2answers
174 views

Manipulate in Manipulate

Question 63982 (Altering values in Manipulate with dynamically generated controls) got a very interesting answer from @belisarius, in which he used a Manipulate ...
4
votes
3answers
159 views

Altering values in Manipulate with dynamically generated controls

I have a Manipulate whose controls are generated based on a parameter in a containing Manipulate: ...
4
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2answers
156 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 ...
4
votes
2answers
166 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" ...
4
votes
1answer
162 views

How can I monitor and detect when a website has changed?

I'd like to detect when a website has changed, in particular when new products are announced on a site that doesn't change to often. Here's the code I wrote but I don't think it is perfect. Also the ...
4
votes
2answers
149 views

Layers of Locators of Different Colors?

I am a Mathematica novice trying to do some interactive segmentation of microscopy images. I've been trying to understand and build upon some code from a previous StackExchange discussion (Can ...
4
votes
1answer
127 views

ExampleData menu view

I'm trying to build an ExampleData browser, so that the "collection"/"type" is selectable in a drop down menu, and the "name" is selectable in another drop down menu. What I have so far: ...
4
votes
1answer
147 views

Confusing font information from CurrentValue

I'm trying to programmatically get the width of a character in Mathematica's default fixed-width font, Courier. I believe CurrentValue holds the answer but I'm ...
4
votes
1answer
319 views

Manipulate Plot and control variables using multiple controls

Here's a simple Manipulate example: ...
4
votes
2answers
136 views

Refresh dynamic variable when used with Get

I came across this issue with a more complicated program I was working on. Suppose we have a volatile variable data: ...
4
votes
1answer
144 views

Using the mouse coordinates to index a matrix

I would like to "write" on to a matrix using the mouse. That is, I would like to use the integer value of Locator coordinates (p) to index a matrix. Then, if the mouse button is down, write a 1 in ...
4
votes
1answer
482 views

Emulating a button push or a mouse click with Mathematica code

I need to perform a long action with a button. I tried setting the DynamicEvaluationTimeout, but it seems it doesn't work for me. So I want to try using several ...
4
votes
1answer
261 views

Dynamic legends involving show

My question is how do I get dynamic legends (legends that turn data on/off) to work with Show? This is an extension of an old question here; How to dynamically toggle curves on/off in a crowded ...
4
votes
1answer
237 views

Cannot calculate with Dynamic variables in a grid

This is a prototype of a grading scheme. In reality it is bigger. The 10 pts in initPtsPartA comes from the school. The output cell should be deployed as a CDF ...
4
votes
1answer
161 views

Transform sequential cell operations to programmatic workflow

Let's say I have a workflow that involves importing images and turning them into an animated gif. Here's how I currently have it setup: Import Images: ...
4
votes
1answer
385 views

help with dynamic input

I'm trying to build a pop up window with i lines. Each line would read: Number of neurons in layer 1: Number of neurons in layer 2: etc until layer i The user would enter a numeric value on each ...
4
votes
2answers
258 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 ...