Search Results

When you edit ls, all dynamics that depend on ls will update instantly, this will cause ls to be edited which will update the dynamic which edits ls.... etc. … The way to avoid this is to specify that there should be no tracked symbols: Dynamic[Refresh[AppendTo[ls, k++]; Last@ls, UpdateInterval -> 10], TrackedSymbols -> {}] …

This page in the section "Nesting Dynamic" is a good read about a situation in which this trick is also used. However there it is used to avoid unwanted dynamic updates. … The thing is that Dynamic has the attribute HoldFirst Attributes[Dynamic] {HoldFirst, Protected, ReadProtected} This means the first argument given to it is held in place, consider for example …

You need to assign imageList for it to actually update, also you need to make the graphics dynamic for it to update when the list is changed. … EventHandler[Dynamic@Show[First[ ... …

I'm not sure if this fully answers your question, but here is a method of using the Dynamic to check if a dialog is already open and reopen it if it has been closed: DynamicModule[{nb = CreateDialog[Dynamic … @y]}, TogglerBar[ Dynamic[y, (y = #;If[Not@MemberQ[Notebooks[], nb],nb = CreateDialog[Dynamic@y]]) &], Range[5]]] …

If I understand you correctly, you can simply display h in a Dynamic and then create your button to increase k, so first define your module: k = 1; h := Plot[Sin[k*x], {x, 0, 10}] Then display the plot … and button: Button["Increase k", k = k + 1] Dynamic[h] …

You can simply get what you are expecting by also including the snap functionality in the dynamically displayed value through: DynamicModule[{x = 0}, Column@{Slider[ Dynamic[If[Abs[x- Round[x]] < 0.3 … , Round[x], x], If[Abs[# - Round[#]] < 0.3, x = Round[x], x = #] &], {0, 5}] , Slider[Dynamic[x], {0, 5}] , Dynamic[x] }] …

Since that returns a dynamic slider, you wold think that your function f[a_,b_]:=a+b would return a dynamicly updated value if you just ran: f[Dynamic[v1], Dynamic[v2]]. … For this example, you would have needed to express how f should handle a dynamic, and could have used: f[Dynamic[a_], Dynamic[b_]] := Dynamic[a + b], which would then work in the way expected above. …

Also you missed a Dynamic in the inputfield: tx = {4, 1, 6, 7, 8}; yourLoop=Reap[For[i = 1, i <= 5, i++, With[{i = i}, Sow[{ InputField[Dynamic[tx[[i]]]], Dynamic[If … [(tx[[i]] < 10), "right", "wrong"]] }] ] ]]; yourLoop[[2, 1]] // Grid //Panel There's some more details about the With[{i=i}] solution in my answer to the question Generating dynamic …

In you first definition everything goes as you expect: g[point_] := Slider2D[point] g[Dynamic[p]] = (* Becomes => Slider2D[Dynamic[p]] *) But in the second case you are stripping away the Dynamic … Dynamic[var_] :> Dynamic[var[[1]]]] p = {.1, .1} g[Dynamic[p]] Dynamic[p] Though I would personally define this as: g[Dynamic[point_]] := Slider[Dynamic[point[[1]]]] Simply to make it clear that I'm …

What you can then do is to simply write the code for you setter bar: SetterBar[Dynamic[x], Range[3], AutoAction -> True, Appearance -> None] And then slightly change the value specification. … So then you could add a dynamic panel which changes color to red if it's value is equal to the selected value: turnRed[n_] := (n -> Dynamic@Panel[n, Background -> If[x == n, Red, White]]) SetterBar[ …

Put With[{i=i}] to get the indexing in the dynamic right: a = Table[List[ StringJoin[{"Number of neurons in layer ", ToString[i], ":"}], With[{i = i}, InputField[Dynamic[d[i]], Number]]], {i, 3}]; AppendTo … I have added some more details on why this problem occurs, and why the solution works to a previous related question: Generating dynamic Inputfields …

level: SetAttributes[updateTree, HoldFirst] updateTree[tree_, newposition_, indices__] := tree[[indices]] = Map[# + (newposition - tree[[indices, 1]]) &, tree[[indices]], {-2}]; Then I define a new dynamic … SetAttributes[treeDynamic, HoldAll] treeDynamic[tree_[[indices__]]] := Dynamic[tree[[indices]]] treeDynamic[tree_[[indices__, 1]]] := Dynamic[tree[[indices, 1]], updateTree[tree, #, indices …

then pass it through as an argument to a function, you can also just not have any function at all: Component1 := Button["Increase x", x++]; Component2 := Button["Decrease y", y--]; Component3 := {Dynamic … @x, Dynamic@y}; DynamicModule[{x = 1, y = 2}, Row[{Component1, Component2, Component3}] ] …

The first part of your question can be done very simply by making dynamic popupmenues where the options are related to the choices of the other popupmenues: PopupMenu[Dynamic[varA], {a, b}] Dynamic[ … PopupMenu[Dynamic[varB], Switch[varA, a, {c, d, e}, b, {f}, _, {}]]] Dynamic[PopupMenu[Dynamic[varC], Switch[varB, c, {g, h}, _, {"So on"}]]] Hopefully someone else will be able to help with the best …

I know this doesn't answer the question of the buggy behavior, but I would suggest an implementation without using Manipulate: DynamicModule[{pt = {}, pt2 = {}}, Column[{ Graphics[{ Dynamic … @MapIndexed[With[{i = #2[[1]]}, Locator[Dynamic[pt[[i]]], Appearance -> Small]] &, pt], Dynamic@MapIndexed[With[{i = #2[[1]]}, Locator[Dynamic[pt2[[i]]], Appearance -> Large]] &, pt2] }, PlotRange …