Questions relating to the dynamic family of functions in Mathematica, such as Dynamic, DynamicModule and Manipulate.
6
votes
2answers
164 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.
...
19
votes
3answers
480 views
Does Mathematica have a built-in date picker?
Does Mathematica have an interactive date input control that lets the user choose a date by browsing to a calendar view and returning the selected date as a date list? For example, something like the ...
1
vote
1answer
76 views
Changing the number of locators with SetterBar
Typically when adding locators I would use a button i.e. something along the lines
...
11
votes
1answer
148 views
why does a variable become real when using the second argument of Dynamic?
Version 9, on windows 7
Please compare these 2 very simple examples
Manipulate[
x,
Row[{Manipulator[Dynamic[x], {0, 10, 1/100}]}],
{{x, 1}, None}
]
and
...
4
votes
2answers
114 views
How to execute a function each time the slider is dragged?
I've created a function f and a slider:
Slider[Dynamic[y],{1,4}]
How to execute/call f ...
1
vote
1answer
93 views
How to control dependent PopupMenus?
I created three interdependent PopupMenus with names demographic, region and ...
6
votes
3answers
280 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 ...
7
votes
1answer
125 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 ...
4
votes
1answer
115 views
Execute code when file is modified
I have a function the takes some time to complete. The function imports data from a .csv, parses it, and plots certain vectors from there. The .csv is constantly being updated from an external ...
4
votes
4answers
115 views
Make a slider controlling a generated character's code value
If I execute the following code:
char = 97;
Slider[Dynamic@ToExpression@FromCharacterCode@char, {0, 5}]
the slider will fail to change the value of ...
0
votes
0answers
104 views
A Google Play/App Store for Demonstrations? [closed]
The Demonstration site is similar to Google Play & the App Store except perhaps for the well-known restrictions/limitations it places its downloadable “apps” - its cdf files. Remove these and it ...
19
votes
2answers
675 views
Why animator smoothes dynamic updates, or how to make pacman drink beer
How could I make a pacman drink beer in Mathematica?
This is what I have so far
...
4
votes
1answer
101 views
Dialog inside Dynamic Module
The following doesn't appear to work:
DynamicModule[{}, Button["Press Me", ChoiceDialog["OK or Cancel?"]]]
When I press the button labelled "Press Me", a dialog ...
6
votes
2answers
185 views
Localizing variables within a Manipulate
I have a notebook with several examples of very similar computations, each involving the same variable/parameter names of the ingredients used in a final ...
2
votes
1answer
145 views
Progress indicator with shared variables
I'm trying to create a custom progress indicator for a parallelized computation, using Dynamic and SetSharedVariables to display ...
7
votes
2answers
234 views
How to extract the numerical value of a dynamical variable
I want to inspect interactively an image by selecting points by the mouse pointer. This is easily done by LocatorPane - here is a simplified example:
...
4
votes
3answers
166 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 ...
4
votes
1answer
140 views
Cannot calculate with Dynamic variables in a grid
This is a prototype of a grading scheme. In reality it is bigger. The 10 pts in initPtsPartA comes from the school.
The output cell should be deployed as a CDF ...
10
votes
2answers
259 views
Mathematica Typing Effect
Here is a Typing Effect in javascript.
I could only implement a very simple one:
...
5
votes
2answers
161 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 ...
8
votes
2answers
141 views
Dependent Manipulate sliders
I would like to use dependent sliders in Manipulate.
First slider K0 should be independent and varied from ...
2
votes
2answers
98 views
Updating a tracked symbol inside Refresh?
I have some code inside a Manipulate, whose goal is to allow the user to edit the upper half of the matrix while keeping it symmetric at all time. The minimal code ...
1
vote
0answers
109 views
Having Dynamic evaluated when off screen
As the title says, I want a cell containing the dynamic solution of a DAE-System to be available over the whole document. I use a lot of different Plots and Sliders scattered over the document and it ...
1
vote
2answers
289 views
Manipulating PlotRange
Currently, I am working with some dynamic simulations of mechanical/electrical systems (in this case a kitchen scale). The main simulation is running smoothly but while building a nice GUI around the ...
8
votes
2answers
134 views
What is the point of Refresh if Dynamic has an UpdateInterval option?
I haven't found an example where I can't get rid of Refresh[]:
...
2
votes
2answers
99 views
How to display only a certain part of the content in a Panel?
I have a Panel of size {850, 400} as myPanel with a Pane of size {450, 400} and four images ...
6
votes
1answer
144 views
Using more than one set of Locators in a Manipulate
I need to add locators dynamically to different sets.
With one set this works OK:
...
3
votes
1answer
110 views
How can I allow a user to input a list using parentheses and convert this to Mathematica notation dynamically?
I have the following dynamic module. It works. The problem is that whenever I try to make the variable list or the variable s dynamic the code doesn't work.
My goal is to allow students to enter a ...
7
votes
1answer
315 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 ...
0
votes
0answers
58 views
How to create a dynamically self-updating table of content for a notebook? [duplicate]
Possible Duplicate:
Generating a table of contents
How to create a dynamically self-updating table of content for a notebook? The TOC should contain the titles for the section, subsection, ...
6
votes
2answers
176 views
A good way to manage code in a complicated CDF?
When doing complicated programming in a Mma notebook I define several functions that I use in my higher level funtions, and I use a "Subsection" cell for each definition. For example I might write:
...
5
votes
2answers
122 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 ...
4
votes
1answer
197 views
Emulating a button push or a mouse click with Mathematica code
I need to perform a long action with a button. I tried setting the DynamicEvaluationTimeout, but it seems it doesn't work for me. So I want to try using several ...
2
votes
1answer
141 views
Defining a function that handles Dynamic arguments similar to Built-ins
Firstly please note that I'm using simply Dynamic behavior to illustrate my question, I'm not asking how to move a Disk or make ...
5
votes
1answer
184 views
Enabled option for slider in Manipulate not updating dynamically
In a Manipulate expression I have a slider control which has the Enabled option
...
5
votes
3answers
176 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 ...
5
votes
1answer
140 views
“Masking” an InputField
In building an assignment for my class, I would like set up an InputField, where they will enter a function. I was wondering if there was a way to "continuously" check if their function is being ...
3
votes
2answers
94 views
How to set the timeout of the preemptive link?
I apologize if this is a RTFM question, but I couldn't find this in the docs.
How can I set the timeout of the preemptive link?
For example:
...
6
votes
1answer
142 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 ...
2
votes
2answers
141 views
How can I create CDF applications which adjust their screen dimensions based on the end-user's display configuration?
I am trying to make a CDF application that takes the user's system information (screen information) and adjusts the size of the application to give a seamless experience over different screens with ...
1
vote
1answer
122 views
Defining a user defined function in DynamicModule
How can I define a user defined function within DynamicModule? For example, if
h[x_] := x^2
I want to find ...
0
votes
1answer
147 views
How to get the associated popup menu?
I have threePopupMenu and they work in such a way that second PopupMenu value depends on the value selected by the first ...
3
votes
1answer
207 views
1
vote
1answer
187 views
How to change the values dynamically in a grid
I am trying to write a function which creates a Grid which has no value in the starting and when some value is passed to it, it should show that value in that ...
1
vote
1answer
229 views
How draw dynamic empty rectangle over a bitmap?
I am trying to make a cookie cutter that will extract a small square from a much larger bitmap with a click of the mouse. The LocatorPane appears to be a useful way ...
6
votes
1answer
219 views
4
votes
1answer
122 views
Transform sequential cell operations to programmatic workflow
Let's say I have a workflow that involves importing images and turning them into an animated gif.
Here's how I currently have it setup:
Import Images:
...
5
votes
1answer
135 views
How to convert String to an Expression inside Manipulate which depends on control variable
Normally, in Global context, these 2 are equivalent
eqn = "r-x";
r = -2;
Plot[ToExpression[eqn], {x, -5, 5}]
and
...
5
votes
1answer
110 views
Control variable and body variable decoupling in Manipulate
This issue was raised as an offside problem in this thread. Consider the following example, that does not work as expected:
...
2
votes
2answers
175 views
Dynamically choosing which Manipulate controls to use
I have some stuff I would like to manipulate, using two different kinds of control, one at a time, using another variable as a switch. These controls are similar in principle to
...
