# Tagged Questions

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

385 views

### Table with dynamic iterator

I would like to make a Table whose iterator has a dynamically updated endpoint, i.e. Table[i,{i,1,Dynamic[n]}] Is this possible? Here is the context: ...
69 views

### How to use the output we see of expression when this expression is inside Dynamic

Consider this example: Manipulate[status = Dynamic[If[a < b, Yes, No]], {a, 2}, {b, 5}] The output of this calculation is ...
300 views

### How draw a line dynamically using manipulate?

I want to paint a curve on a sphere while I’m manipulating stereoscopic projection points on the plane with a 2D slider, but I’m having trouble collecting the points needed to create the Line ...
134 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 ...
137 views

### How can my Manipulate be aware of a local variable inside a nested Module

I have 3 sets of 5 x-y points: RandomInteger[10, {3, 5, 2}] I want to display only one set of points at a time, and use a slider to move on to show the next ...
214 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 ...
172 views

### Generate a dynamic interface with sliders out of a list of rules

I would like to generate a function which takes a list of rules as input and generates sliders which are altering the values of the list. Then I would like to use this function in an dynamic module as ...
296 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 ...
299 views

### Speeding Up Image Processing Functions

I am working with stacks of 1024x1024 timelapse microscopy images that I am performing a series of image processing functions on to help segment each image. These functions include ...
824 views

### Why is either Listable or HoldFirst not working?

Starting with a fresh kernel, I evaluate the following: ...
551 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 ...
282 views

### EventHandler Not Detecting KeyDown

I am trying to use EventHandler to detect KeyDown within a LocatorPane. Anytime I press a key inside the LocatorPane the proper action is not executed (doesn't matter which key I choose) but rather ...
139 views

### Why isn't Refresh working as expected? [duplicate]

This seems to me to be a very easy question, but I can't seem to figure it out. Instead of updating every 1 second, it auto-updates as quickly as possible. ...
207 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 ...
116 views

### Slider with varying scales

I am trying to implement a slider whose control range varies depending on the current value: ...
261 views

### How to program a click panel for chemical elements (like a periodic table)?

The command ColorData["Atoms", "Panel"] indicates RGBColors of atoms by clicking a panel. As I don't want to reinvent the ...
679 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. ...
321 views

### Export Notebook causes an INTERNAL SELF-TEST ERROR: Files2|c|1713 message

On my machine (Windows 8.1) and M10 the following two lines, that must be run on an already saved notebook, ...
148 views

### Initial Image Size of dynamic plot

I have a dynamic plot. I want to set an initial image size and then be able to resize it by dragging with the mouse. When the image is updated, I want to maintain the "dragged" size. A naive attempt ...
53 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 ...
72 views

### Dynamic with RegionNearest keeps one CPU core at 100% - Is this a bug?

Normally, when you use Dynamic with a CPU-intensive expression, the expression only gets evaluated when a symbol in the expression changes. This doesn't seem to ...
166 views

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: ...
128 views

### What is wrong with combining two programs with event handlers?

I can delete the unwanted nodes of a RandomGraph by double-clicking on them from the first program, and I can change the positions of the nodes by dragging them ...
202 views

### Evaluating an If expression inside Dynamic

I was trying to display some value inside a InputField. Usually it looks like this: ...
146 views

### Two controls to Manipulate all elements of a list

Say, I have a list list and I don't want to assign different names to all its elements. What I want to do it to be able to interactively manipulate any of the ...
219 views

### Checkbox Matrix

Is it possible to create a dynamically changing binary $n \times n$ matrix $A$, which appears to the user as a $n \times n$ matrix/table of checkboxes and the user can change the entries of $A$ by ...
231 views

### Graphics // Triangle // Manipulation

I have been Mathematica user for a considerably short while. I have learned some of its functionality using wolfram how-to resources and the documentation. I am having difficulties constructing ...
202 views

### Why the Mouse dragging response not as smooth as Locator

I am experimenting to use MouseDragged eventhandler to change the vertices positions of a triangle, it works, but not as smooth as using Locators. Is this the ...
299 views

### Dynamically updating linked Manipulate variables

I am trying to write a simple cylindrical tank design notebook. Once the user inputs the desired capacity in gallons, it will compute the required volume (in cubic feet) and then offer sliders for ...
60 views

### How can I make a clickable ArrayPlot that returns input?

I would like to create a dynamic ArrayPlot so that the rectangles, when clicked, provide the input. Can I use ArrayPlot for this?...
87 views

### Generation of Sliders via Tables/For loops

I have a list named data that contains lists of arbitrary size, data={{0.5, 0.5}, {}, {0.5, 0.5, 0.5}, {}, {}, {}, {}, {}, {}, {}} I now want to generate for ...
55 views

### Hide your controls inside Manipulate [duplicate]

I didn't find any topic that could help me; I hope this isn't repeated. I just want to show a control if a specific option is selected inside a popupmenu: ...
122 views

### Export LocatorPane as image by button

How to Export LocatorPane as image by button or at least by something else? Kuba, thank you! Your method works in a simple case: ...
348 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 ...
100 views

### Manipulate which creates and deletes Manipulators dynamically

I want to plot a function in a Manipulate in which the number of terms varies and a Manipulator for the coefficient of each term ...
262 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 ...
172 views

### Multi-Camera streaming using Mathematica [closed]

I am attempting to capture dynamic streams from multiple usb webcams using only mathematica. Using ImageCapture["Device" -> \$ImagingDevices[[x]], I've tried to ...
146 views

### Checkbox behaving weird when variables are local

I have a DynamicModule in which I need a checkbox with a Max in the dynamic part: ...
239 views

### Resources for Sound Synthesis & Design

Are there any resources for sound synthesis using Mathematica? This page, Mathematica: Audio Synthesis Software, refers to other software packages, e.g. Max/MSP and Csound, for real-time synthesis. ...
79 views

### Switching the plot variable when plotting a two-variable function as a single variable function with a parameter

I would like to make easy to change the variable for which I am making a set of plots. Say I want to plot Sin, Tan, Cos and other functions of the same argument. To quickly switch from plotting it as ...
217 views

### DynamicModule inconsistent behavior; was: DynamicModule persistent UI changes

Update: I'll restate the question in hopefully more terse and clearer terms. To illustrate the issue, run this and save the resulting notebook: ...
352 views

### How to run function every x seconds?

I want to make a Graphics with a Disk whose position should update every 4 seconds. This is what I've got so far: ...
387 views

### Why does Dynamic for PlotRange in ListLinePlot prevent the proper range from being used?

I am using Manipulate to simulate Brownian motion. I want to be able to zoom in. Thus, I want to use Dynamic for the ...
398 views

### How to efficiently drag points on a curve within a Manipulate

My intention is to demonstrate on any conic various metrics properties on points belonging to the conic and connected by lines. I want the points to be dynamically moved not the usual way, ...
154 views

### How to simulate the 1-D motion of a particle under constant acceleration? [duplicate]

I am trying to represent the position of an object under freefall, but am completely lost. Here is my attempt so far: ...
157 views

### How to control Manipulate speed

I want to ask about how can we control Manipulate function so that it is not incrementing the step until the expression is calculated. I have the following simple ...
161 views

### A timed switch with Dynamic

I'm trying to make a binary switch that switches after a fixed given interval. Why doesn't the following work: ...
228 views

### Dynamic inside Button

This bit of code runs a little animation of a stochastic process: ...