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

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6
votes
1answer
87 views

Bug with Initialization in DynamicModule?

In exploring Tracking Initialization, I came across this. The following usually shows a value for x of 300000 to ...
9
votes
1answer
157 views

Tracking Initialization

How to track Initialization step by step? Any tricky solution is ok. One condition, x should be ...
1
vote
1answer
72 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. ...
15
votes
3answers
521 views

How to manipulate a circle in GeoGebra style?

I want to emulate the GeoGebra app. I want to get an effect like this in Mathematica. I don't know how to move whole circle without changing the radius of the circle. My sample code: ...
5
votes
1answer
249 views

Is there a way to make an interactive plot so one can pan and zoom?

My googling efforts returned nothing so I thought I'd ask here. I often make a ListPlot[] with a huge array, and sometimes it has smaller features that I'd like to take a closer look at, but aren't ...
4
votes
2answers
107 views

Manipulate in modal mode

It is sometimes convenient to use Manipulate to set up global values which are to be used in the rest of the notebook. In such cases one can select and run the ...
2
votes
2answers
122 views

How to make functions from datasets

I have a csv that encodes the results of plugging certain parameters (say, A and B) into certain functions (say, ...
5
votes
1answer
232 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: ...
4
votes
3answers
198 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 ...
0
votes
1answer
120 views

Unusual Slow Down with LocatorPane/DynamicModule

I have coded up a little interactive DynamicModule to help me with image processing/segmentation of stacks of timelapse microscopy images. I am experiencing a crippling slow down in the ...
4
votes
2answers
338 views

Selectively updating individual graphics in a dynamic, multiple-plot Show

Suppose Show contains multiple graphics objects that differ markedly in the amount of computation needed for their display. Hence, when dynamically updating only ...
1
vote
1answer
161 views

Locators, lists of variable length, all in Manipulate

I'm trying to implement a complicated Manipulate[] interface. I'm not really interested in working code, but for those interested, I would like the program to allow you to drag around a variable ...
3
votes
1answer
335 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: ...
1
vote
2answers
66 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 ...
4
votes
2answers
279 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 ...
2
votes
1answer
133 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
2answers
126 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 ...
7
votes
3answers
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 ...
4
votes
1answer
168 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 ...
4
votes
2answers
291 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 ...
1
vote
0answers
291 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 ...
2
votes
1answer
793 views

Why is either Listable or HoldFirst not working?

Starting with a fresh kernel, I evaluate the following: ...
10
votes
4answers
536 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 ...
3
votes
4answers
268 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 ...
2
votes
2answers
128 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. ...
4
votes
2answers
199 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 ...
1
vote
2answers
114 views

Slider with varying scales

I am trying to implement a slider whose control range varies depending on the current value: ...
6
votes
2answers
239 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 ...
12
votes
2answers
641 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. ...
2
votes
0answers
318 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, ...
2
votes
3answers
146 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 ...
2
votes
1answer
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 ...
2
votes
1answer
71 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 ...
4
votes
1answer
163 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: ...
0
votes
1answer
125 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 ...
2
votes
2answers
188 views

Evaluating an If expression inside Dynamic

I was trying to display some value inside a InputField. Usually it looks like this: ...
2
votes
1answer
143 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 ...
1
vote
1answer
212 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 ...
0
votes
1answer
222 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 ...
6
votes
2answers
199 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 ...
1
vote
1answer
252 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 ...
0
votes
0answers
26 views

How can I give input to an ArrayPlot [duplicate]

I would like to create a dynamic ArrayPlot so that the squares, when clicked, provide input. Can I use ArrayPlot for this? Or is there something else I should have to use.
1
vote
1answer
86 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 ...
0
votes
0answers
53 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: ...
3
votes
1answer
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: ...
8
votes
1answer
335 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 ...
1
vote
2answers
97 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 ...
4
votes
3answers
249 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 ...
5
votes
0answers
171 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 ...
5
votes
2answers
144 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: ...