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

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2
votes
1answer
131 views

Input[] inside DynamicModule causing a kernel crash [duplicate]

I have those few lines of code causing a crash and I can't figure out why: ...
3
votes
1answer
125 views

Dynamically apply a function fed by Input[]

Here is a bit of code: funlist = {Plot,ListPlot}; Input[Panel[PopupMenu[Dynamic@whichfun, funlist], "blabla"],Dynamic@whichfun] The idea here is to select what ...
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 ...
3
votes
2answers
148 views

Dynamically show usage

As the title states I would like to dynamically show ::usage on several functions. Let's consider two functions here: ...
2
votes
1answer
153 views

Delay of events detection dependent of “MouseDown” position

Let's say we have a Rectangle with color which depends of CurrentValue["MouseOver"]: ...
3
votes
1answer
561 views

Automatically dealing with “disable dynamic updating”

I'm programmatically creating notebooks containing dynamic content. When a new notebook is being created, a window pops up: I then manually click on "Continue" and it will create the notebook. The ...
1
vote
1answer
137 views

Creating a Dynamic MSSQL connection

Hello i am trying to create a notebook that automatically connects to a database on MSSQL server and would then query this to create a sort of personal report. I have connected to this database and ...
2
votes
1answer
128 views

Interaction between two sliders that update the same variable

I'm basing this on the code found in the Introduction to Dynamics. I added one more slider which doesn't use the "round and snap" feature given in the link above: ...
2
votes
1answer
160 views

Remove braces, {}, from around DynamicModule output?

Is there a way to remove the braces from the front end output associated with DynamicModule? For instance: ...
5
votes
1answer
204 views

Make dynamic controls from existing list

I have a list of variables (c1,c2,c3,c4), each with its ...
0
votes
1answer
94 views

Can a large Grid of 3DListPlots be rotated by a single Dynamic control?

So I have a few hundred plots in a grid, that I thought would be nice to adjust the data view with a Dynamic slider. I'm using Jens solution for the Grid plotting here . Manipulating multiple plots ...
3
votes
2answers
163 views

Using list elements in TrackedSymbols for Dynamic

During the execution of the following code a column of three lists and two sliders are displaying in output. The first list updates if either a or b changes. The second list updates only if the value ...
1
vote
0answers
63 views

Convert ImageSize to FieldSize [duplicate]

How might I construct a function called EmToPX[p] such that the following 2 InputFields would be the same width. If not please ...
1
vote
2answers
108 views

Using Refresh to skip expensive computations

I have several variables in my DynamicModule and some parts of my computation depend only on subset of them. I am trying to use Refresh to "cache" values but can't ...
2
votes
1answer
131 views

Module Inside ToBoxes or MakeBoxes

Does someone mind explaining why Module doesn't seem to work while inside ToBoxes or MakeBoxes. ...
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 ...
1
vote
1answer
115 views

Locator with Integer value coordinates [duplicate]

I want to get the Pixel value of an image.and here is my code ...
3
votes
1answer
61 views

Delete `x,y,z` occurrence (or any permutation of it) from parent data set (dynamically)?

Simple question: I would like to dynamically specify a list of 3 elements, {x,y,z}. Then I'd like to find that list, or any of its permutations, in a parent data ...
2
votes
3answers
183 views

Wrapping grid with dynamic

I'm trying to build a sortable grid: ...
7
votes
1answer
347 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 ...
2
votes
1answer
94 views

Strange response with dynamic texture and MousePosition

I built a cubic, then use MousePosition together with GUIScreenShot to take a floating region with fixed size (200*200) on the ...
5
votes
1answer
207 views

How can I use Dynamic to run a script when a new file is added to a directory?

I have an external program saving files to some directory on my hard disc. I'd like to run a script that imports and runs a script on each file as it is added to the directory. Is there a simple way ...
2
votes
1answer
268 views

Dynamic [ NotebookEvaluate [“_”] ]

A nice way to centralize various tasks in one notebook is the NotebookEvaluation function. For instance I can evaluate ten notebooks from a single notebook (e.g. ...
0
votes
1answer
136 views

InputField equations and Solve

I'm trying to get this piece of code to work: ...
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? ...
1
vote
2answers
316 views

Import image using InputField and Button

I've got a pretty basic problem, which is probably easily solved, but for all my efforts I haven't found a solution yet: I want to make an Image importer of the following form: An ...
0
votes
1answer
130 views

Reuse a dynamic list [duplicate]

Consider this Dynamic list ...
3
votes
3answers
450 views

Making a multiple choice button

I've written the following code to create a multiple choice button that takes an arbitrary number of answer options and will assign a variable true/false depending on whether or not the correct choice ...
0
votes
1answer
214 views

How to compute values only if input fields are filled?

In the following code how can I keep the DynamicModule from computing values if the input values are not all filled? If I don't specify default values it will show the code used to compute the values ...
0
votes
0answers
32 views

Asynchronous evaluation of a button's action [duplicate]

What would be the best way to have the value of x update before the pause (or a similarly slow function) finishes executing? ...
4
votes
4answers
234 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: ...
2
votes
1answer
172 views

Change the behaviour of a LocatorPane

Normally, LocatorPane detects any single click as in the following example: ...
8
votes
3answers
696 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 ...
3
votes
3answers
213 views

Extracting the coordinates of a point of interest from a ListDensityPlot

How can I extract coordinates from a list density plot. Example plot of interest: I need to place two points on either side of the center white circle and calculate the distance between them. My ...
0
votes
2answers
124 views

Assigning several values inside DynamicModule

I have coded a model that contains several parameters. The parameters can be changed interactively by the user using an interface contained in a DynamicModule[]. There are several "basic states" of ...
0
votes
3answers
586 views

Plotting function with Dynamic parameter

I'm trying to get this code working: a = 2; func[t_] := Dynamic[t + a]; Plot[func[t], {t, -5, 5}] The idea is: I'd like to have the dynamic parameter a change ...
0
votes
1answer
188 views

Embedded CDF Not Working

I happened to be looking at an old CDF (19 months old). It previously worked and does not now. It works if downloaded (opening or at URL). It requires dynamic functionality to be enabled but no longer ...
1
vote
2answers
296 views

Plotting a dynamical NonlinearModelFit Function

Currently I'm playing around with dynamics and the NonlinearModelFit function. To be precise, I want to fit a function the data, which range I want to specify ...
4
votes
3answers
442 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 ...
2
votes
2answers
623 views

How to make a Dynamic Calculator to solve a quadratic equation?

Taking my first steps in the world of Mathematica Programming. The aim of my program was to modify Wolfram's dynamic calculator (which performs an addition subtraction and a product - in response ...
5
votes
3answers
430 views

Unexpected Setter Bar Behavior when Manipulate Nested in Dynamic Module

Consider this code: DynamicModule[{x, y}, x[t_] := t^2 + 5; y[t_] := t^3 + 5; Manipulate[Plot[fcn[t], {t, -5, 5}], {fcn, {x -> "Square", y -> "Cubic"}}]] ...
2
votes
1answer
201 views

Autoupdate Dynamic Variable and Selectable

Does there exist a technique to construct a Cell that allows you to both auto update a Dynamic variable and allows you select the code while the variable is being ...
1
vote
1answer
411 views

Initialization Cells in CDF

I am wanting to run about 15 pages of initialization cells in a CDF, but can't seem to do so. I have set the InitializationCellEvaluation to True and InitializationCellWarning to False, but it doesn't ...
14
votes
4answers
618 views

Button evaluation inside DynamicModule

Someone know why this Button works when clicked: ...
3
votes
2answers
135 views

Restrict MousePosition to specific Graphics object

I have a problem using MousePosition. I want to restrict the value returned by MousePosition to a specific Graphics object. ...
2
votes
3answers
303 views

Changing the Actions in EventHandler

I would like to be able to change which action specified events take depending on some condition. For example, I have established a SetterBar ...
4
votes
1answer
413 views

Manipulate Plot and control variables using multiple controls

Here's a simple Manipulate example: ...
4
votes
1answer
209 views

Change CurrentValue of a key press

I was wondering if there is a way that I could change the value of a key press such as Shift, Ctrl, etc. Normally, when nothing is pressed, the CurrentValue will ...
5
votes
1answer
218 views

Using the keyboard to interactively and dynamically specify coordinates in a grid (a la Battleship board game)

In Mathematica, it is possible to create a Table or Grid of \[Placeholder] boxes. For ...
0
votes
2answers
240 views

Using Button to display dynamic graphics

I have a DynamicModule with several graphic elements. I would like to create a button which would change a parameter and re-run the entire module. Say that we have ...