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

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9
votes
1answer
143 views

Tracking Initialization

How to track Initialization step by step? Any tricky solution is ok. One condition, x should be ...
9
votes
3answers
199 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 ...
9
votes
1answer
94 views

How to synchronize the display of dynamic objects?

I was looking at this question, which asks to keep the orientation of some 3D graphics objects constant (relative to the viewer) while rotating the rest with the mouse. I thought that maybe the ...
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 ...
8
votes
2answers
724 views

What is special about 70.329862 and InputField and Number and Dynamic?

Is this a bug (happening in V9 and V10 Windows, Linux) or not? It only happens for certain numbers and you need Number in InputField. ...
8
votes
2answers
1k views

Dynamic graph visualisation using JLink/Java and GraphStream

Visualising the addition of new nodes and edges to a graph to 'watch it grow' is to something Mathematica is not suited to by default. However this type of animation really helps convey the emergence ...
8
votes
1answer
338 views

I want to update a financial chart when I select a new stock from a popup menu

I have the following code: Read all the DOW jones financial instruments instruments = FinancialData["^DJI", "Members"] Then I create a dynamic variable called ...
8
votes
3answers
574 views

How to use custom Dynamic inside Manipulate

I was wondering if it is possible to use a custom Dynamic[var, function] inside a Manipulate. The reason for the need is this: ...
8
votes
1answer
584 views

Generating dynamic Inputfields

I want to create a bunch of input fields, four in this case, one for each element of the list "x", but since Dynamic has ...
8
votes
1answer
401 views

Oval or Bunimovich stadium

The dynamic billiard demonstration, that can be found on wolfram demonstrations (here), is only designed for an ellipsoid-shape boundary(snapshot below). The idea is to have a dynamic billiard with ...
8
votes
5answers
637 views

How to save Manipulate bookmarks permanently?

I would like to save current Manipulate parameter values to load them again later. Bookmarks (previously discussed here and here) work fine until the cell is ...
8
votes
1answer
647 views

Prevent PopupWindow from opening multiple windows

PopupWindow objects can be clicked multiple times, opening multiple popup windows for the same object. How can I prevent this? A bit more detail: I have an ...
8
votes
1answer
96 views

How can I defer the loading of a PopupView control until it is used?

Background: I have several PopupViews of which the loadtime adds to the startup time of a program. To improve the perceived performance I want to defer the loading ...
8
votes
1answer
172 views

Using GraphHighlight interactively

I want to build a small GUI, where the user can select either a single edge or a single node of a graph. I got to this point: ...
8
votes
2answers
328 views

Strange behavior of CreateDialog's WindowSize option

Compare the two dialog windows, created by the same code except in the first WindowSize has a value while I omit it in the second one. Note, that ...
8
votes
1answer
387 views

Way to find color at a point in a Graphics?

I need to figure out a way to find out the RGB color value at a certain coordinate in a Graphics object. The Graphics object I am dealing with is continually Dynamically updated, so it is made of ...
8
votes
1answer
147 views

Notebook's WindowSize interference with contents' Dynamic ImageSizes

Bug reproduced in: Win7: V9.0.1, V10.0.2, V10.1.0 ...
8
votes
2answers
644 views

What causes Manipulate to stop evaluating expressions?

I'm working on a N-body simulation within Mathematica, and currently I have something along these lines: ...
8
votes
0answers
77 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 ...
7
votes
3answers
209 views

Using a Slider2D to add data points to a list

This bit of code sets up a list with the first entry already in it -- {{1,1}}: ...
7
votes
2answers
345 views

Click in a vector plot to plot several solutions of a system of differential equations

I am aware of the Locator button and I am aware of the Equation Trekker package, but they are not what I want to use. Here is what I specifically want to know how to do, if possible. Consider the ...
7
votes
3answers
264 views

Wrapping EventHandler by Table

I am making a grid on the screen. The grid is composed of different expressions. I want all of them to have a Gray background, which turns into a ...
7
votes
2answers
328 views

How to efficiently get the value from form UI built with dynamic InputField

Here is the code that I used to make a tabular UI. ...
7
votes
2answers
266 views

Moving controls from Manipulate to a Palette ( or similar GUI object )

Consider the following snippet as a reference. ...
7
votes
2answers
448 views

Detecting double click events

Is there a way to detect double click events? I did not find anything on the doc page of EventHandler. Use case: I want to re-implement the ...
7
votes
2answers
229 views

Palette button with progress bar

Let's say you have a palette with a button that has to do some time-consuming task when clicked: ...
7
votes
1answer
202 views

Asking for input in an event handler

Why won't EventHandler["text", {"MouseClicked" :> (output = Input[];)}] work? When I click "text" the kernel hangs.
7
votes
3answers
646 views

What is the right way to construct DynamicModule

When I'm creating DynamicModules for CDF purposes I'm usualy basing on my experience with that, particular goal and content rather than on deep insight. I want to ...
7
votes
1answer
477 views

Want Interactive PlotRange of Graphics[{}]

I am trying to do: ...
7
votes
2answers
184 views

Is it possible to make a variable wrapped in Dynamic non-dynamic?

If I have a function call wrapped in Dynamic can I make one or more of the parameters in the call non-dynamic? i.e. I would like to make ...
7
votes
1answer
170 views

Momentary Checkbox

I'm trying to create a demonstration in Mathematica where a checkbox will show an answer, but I only want the answer to be shown while the mouse button is pressed. There seems to be a ...
7
votes
1answer
279 views

Poincaré map for dynamic billiard

There's a very nice demonstration of dynamic billiard written by Dan S. Reznik that can be found on demonstrations wolfram(along with the code): here I was thinking whether it would be possible to ...
7
votes
1answer
270 views

Why do Tooltips slow down Dynamic so much? Is there a faster alternative?

I'm working on a Dynamic ListPlot with a few thousand plots, and it seems that wrapping the points with Tooltip slows the Dynamic responsiveness substantially. With the simple example below, dragging ...
7
votes
1answer
202 views

Prevent interdependence of controls

My question is probably best illustrated with this small sample code: ...
7
votes
2answers
609 views

Switching off Dynamic updating on a cell by cell basis

Is there a simple way to switch off Dynamic evaluation for a particular cell? I usually delete the cell if it disturbs other evaluations or affects the performance ...
7
votes
1answer
241 views

Why is the Locator snapping back to the original coordinates? How can I prevent this?

Take the following code: p = {3, 3}; Graphics[Circle[{5, 5}, 5], Epilog -> Dynamic@Locator[Dynamic[p]], Axes -> True, GridLines -> {{3}, {3}}] ...
7
votes
2answers
187 views

Dynamically transform one Graphics to another

I would like to have two Graphics objects displayed side by side such that: they are mirror images of each other if I change the left-hand one interactively using ...
7
votes
1answer
312 views

How to make dynamic input fields work with drag & drop

I have an application using InputField to allow a user to dynamically update a data structure. In some cases the user will want to remove a string from one field ...
7
votes
1answer
405 views

How to create a multi-selectable setterbar with colored buttons

Background: consider the following code-snippet. ...
7
votes
1answer
196 views

How can I have interruptible computations inside a manipulate?

Here's a perfect example of my problem: Manipulate[Pause[n], {n, {1, 10}, ContinuousAction -> False}, SynchronousUpdating -> False] It is illustrated by ...
7
votes
2answers
147 views

How to track Part of Symbol or How to symbolize Parts of Symbol without copying data

Let's create simple function: SetAttributes[h, HoldFirst]; h[data_] := Dynamic[Grid[data], TrackedSymbols :> {data}] test = RandomReal[1, {2, 2}]; h[test] ...
7
votes
1answer
407 views

Locking a value when Manipulating variables

I'm trying to achieve something similar to Bret Victor's brilliant Scrubbing Calculator in Mathematica. By using Manipulate I'd like to change the values of the variables such that if I modify one ...
7
votes
1answer
217 views

Can I select or implement a Manipulate bookmark from an arbitrary control?

I understand how I can select a bookmark from the "+" menu of a Manipulate. Is there a way to select a bookmark from an arbitrary control, or define a control that ...
6
votes
3answers
345 views

Simple blink comparator for two images

I tried to build a simple 'blink comparator' - where you can click on an image repeatedly to switch between two similar images. (An old-fashioned notion in the days of powerful image processing ...
6
votes
2answers
815 views

Formatted text in a Dynamic or Manipulate control

I am using a Manipulate control to show different calculations for the same user-specified parameters. I would like to show the results for the calculation the ...
6
votes
2answers
417 views

A command for outputting a list of parameter values in a Manipulate interface

I am looking for a command that will output a list of values that correspond to the current parameter values manually set on a particular Manipulate interface. For ...
6
votes
3answers
399 views

Locators in Manipulate not moving properly

I thought a simple Mathematica kerning machine (for adjusting the space between characters) would be interesting, but I'm having trouble with the locators. (There are a number of other questions ...
6
votes
2answers
497 views

How can I make a list animation of images that fade in and out?

I'm not sure how to get a "fade in" effect.
6
votes
3answers
257 views

Displaying a locator that moves smoothly and updates some dynamic variables

I want to select a point on a graph and display a function of the coordinates value. Asking here a related question I learned to use Setting. Consider the example, where I display the coordinate ...
6
votes
2answers
390 views

How to get state of checkbox?

Please explain how to get state of checkbox for its usage in further calculations. And I want to keep the selection from session to session without external savings. Thanks in advance