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

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10
votes
4answers
588 views

Animate point go round a triangle

How can I animate a point moving on triangle sides? I can generate traingle and point but I have no idea how to define point movement. I'm guessing that I have to use sin and cos in coordinates but I ...
9
votes
1answer
257 views

Possible bug with second argument of Dynamic

According to the documentation, Dynamic Details & Options section, especially: For interactive mouse operations Dynamic[expr,{f_start, f, f_end}] typically ...
7
votes
1answer
348 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 ...
7
votes
1answer
120 views

Notebook's WindowSize interference with contents' Dynamic ImageSizes

Consider the following MWE: ...
7
votes
3answers
206 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
567 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 ...
6
votes
2answers
102 views

Injecting list of controls into manipulate

I am trying to program a method to manually move around graph vertices, and then output the new coordinates. I'd like to turn this into a function that can be called with a variable number of ...
6
votes
1answer
146 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. ...
6
votes
1answer
160 views

How can I make sure all InputFields have values before processing a nb form?

This is a two part problem: I have a form that accepts both numeric and text inputs, then runs a function using a "process" Button. The issue I'm having is users that forget to fill out all of the ...
5
votes
1answer
179 views

Dynamic panel crashes Mathematica 10.0.0.0

This answer by @paw have revealed a bug that causes Mathematica v 10.0.0.0 to crash the GUI and kernel. So far the offending code is this: ...
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
105 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 ...
5
votes
1answer
182 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 ...
5
votes
3answers
427 views

How do you properly create Buttons to change dynamic variables using Table

In this example, I want a series of four buttons to change the value of a variable that is used dynamically to drive a plot. I am trying to figure out why using Table around the buttons causes a ...
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
319 views

Manipulate Plot and control variables using multiple controls

Here's a simple Manipulate example: ...
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 ...
3
votes
2answers
77 views

Toggle plot visibility of dynamic number of data sets

I have multiple curves in my plot, and want to be able to toggle their visibility off/on. Which I got to work thanks to a different post. ...
3
votes
1answer
120 views

How to build a constant Graphics object

I'm making an animation with Manipulate for a representation. The code looks like this ...
3
votes
2answers
157 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 ...
3
votes
1answer
123 views

Comparing data sets with fade transitions (Code speed-up)

I am using the utility below for data comparison. However, with my real (more complex) charts the processing is quite slow, so setting the Pause time under ...
3
votes
2answers
346 views

Dynamic matrix multiplication

I have the following problem: I want to multiply two matrices and sum them to another matrix C. A.B+ 2B Easy! The matrix A varies as a function of three inputs a,b and c. The second matrix, B, is a ...
3
votes
1answer
219 views

Avoid crash in recursive Dynamic

With the following Dynamic cell, I can reproducibly crash Mathematica, so do not try this unless you have saved all your work! ...
2
votes
1answer
261 views

Dynamic graph construction and visualization (Watts' “Small Worlds” α-model)

I need some help in creating a Mathematica program for building and visualizing Watts' "Small Worlds" α-model. This is a variant of the more known (and much more simple) β-model (also known as ...
2
votes
1answer
105 views

Multiple plots using dynamics

I am studying Dynamic and DynamicModule, and I have tried to make a simple plot of a family of real functions. The number of functions should be a dynamic variable controlled by a slider. So I have ...
2
votes
1answer
46 views

Is the use of Block to temporarily override definitions inherently unsafe? [duplicate]

This may have been discussed before, if so, please let me know. Consider the following example: x = 5 Dynamic[{Clock[], x}] This will always display the ...
2
votes
1answer
209 views

Trouble using If[] within TabView Manipulate control

If I place an If in the "body" of a Manipulate as in: ...
2
votes
1answer
147 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: ...
2
votes
3answers
265 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 ...
2
votes
1answer
249 views

Dynamically updating interactive objects in Mathematica

Is it possible to create interactive code in Mathematica (via EventHandler[] or Manipulate[] perhaps) that continually updates some calculation based on external data in the time when no user input is ...
2
votes
2answers
322 views

How to format dynamic InputField value using NumberForm?

Background: I want all numbers in InputField's displayed as NumberForm[num,2]; Now, consider the following the snippet of ...
1
vote
1answer
102 views

How to combine manipulate and eventhandler

I combine manipulate and eventhandler, now I can change the controller when working on eventhandler, but how to change the value in eventhandler when I control the manipulate controller? ...
1
vote
1answer
78 views

Nothing happens when I click the mouse clicked on my graphics

I wrote codes to record list of coordinates when mouse clicked. It is expected that the coordinates should be plotted dynamically. But actually nothing happened. Can anybody help me to find the ...
1
vote
1answer
159 views

Help in Bifurcation Diagram

My dears, I need to plot a bifurcation diagram for the following non-linear systems represented by the next Mathematica code ...
1
vote
1answer
58 views

Why does my Dynamic NonliearModelFit keep running?

I have complex data and which I am fitting to a complex formula. In order to use NonlinearModelFit I split the formula and the data into real and imaginary parts. ...
1
vote
2answers
196 views

Locator following other locator in DynamicModule

I'm trying to create a dynamic environment where I specify, using two locators, the initial condition (position (x,y) and velocity angle (alpha)) of a 2D particle. To simplify, I'm assuming the ...
0
votes
1answer
125 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
119 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 ...
0
votes
2answers
154 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 ...
0
votes
2answers
186 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
177 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 ...
0
votes
1answer
193 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
3answers
439 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
148 views

TabView resets to default when selecting data using Control object

I have 3 drop down boxes on one of the tabs in my TabView. Two of the drop down boxes results are used in a Select statement to ...
0
votes
0answers
151 views

Using Control Objects with TabView [duplicate]

I have a number of different tabs on my 'dashboard'. Each tab has a few different Controls (drop down boxes) that the user makes selections with. These selections determine what is displayed on the ...
0
votes
1answer
85 views

Retain values between sessions

This is a real newbie question, so apologies in advance for may seem a very dumb question ... I'm trying to understand the various ways in which information can be retained in a notebook between ...