Skip to main content

plotting - Controlling the 2D $x–y$ aspect ratio of a 3D plot


I have some data representing a nested list, each element being composed of 3 real numbers like {{652.112, 0, 0.111838}, {664.096, 29.134, 0.0000485323}, {713.531, 12.1382, 0.805022} ...}. I would like to make an illustration for a journal article out of this list. The first idea is to use ListPlot3D function. The points in my list span in space from 600 to 1300 along $x$ (e.g. about 700 units along $x$) and from -100 to 100 along $y$ (e.g. about 200 units along $y$).


It is principally important for me that the illustration gives a correct feeling about the $x/y$ ratio. However, when I build it the image looks about equal along $x$ and along $y$. Changing AspectRatio->0.2 to 0.5 only helps partially, but disturbs another aspects of the image.


Is there a way to control the $x\text{–}y$ aspect ratio of a 3D image?



Answer



You need BoxRatios, it works also in ListPlot3D.


GraphicsRow[ Table[ Graphics3D[ Sphere[], BoxRatios -> a],
{a, {{1, 1, 1}, {2, 1, 1}, {1, 2, 1}, {1, 1, 2}}}]]

enter image description here



You can use it in ListPlot3D, e.g.


GraphicsRow[ Table[ ListPlot3D[Table[Sin[x y], {x, 0, 3, 0.1}, {y, 0, 3, 0.1}], 
BoxRatios -> {1, 1, 1/k}],
{k, 3}] ]

enter image description here


Comments

Popular posts from this blog

front end - keyboard shortcut to invoke Insert new matrix

I frequently need to type in some matrices, and the menu command Insert > Table/Matrix > New... allows matrices with lines drawn between columns and rows, which is very helpful. I would like to make a keyboard shortcut for it, but cannot find the relevant frontend token command (4209405) for it. Since the FullForm[] and InputForm[] of matrices with lines drawn between rows and columns is the same as those without lines, it's hard to do this via 3rd party system-wide text expanders (e.g. autohotkey or atext on mac). How does one assign a keyboard shortcut for the menu item Insert > Table/Matrix > New... , preferably using only mathematica? Thanks! Answer In the MenuSetup.tr (for linux located in the $InstallationDirectory/SystemFiles/FrontEnd/TextResources/X/ directory), I changed the line MenuItem["&New...", "CreateGridBoxDialog"] to read MenuItem["&New...", "CreateGridBoxDialog", MenuKey["m", Modifiers-...

How to thread a list

I have data in format data = {{a1, a2}, {b1, b2}, {c1, c2}, {d1, d2}} Tableform: I want to thread it to : tdata = {{{a1, b1}, {a2, b2}}, {{a1, c1}, {a2, c2}}, {{a1, d1}, {a2, d2}}} Tableform: And I would like to do better then pseudofunction[n_] := Transpose[{data2[[1]], data2[[n]]}]; SetAttributes[pseudofunction, Listable]; Range[2, 4] // pseudofunction Here is my benchmark data, where data3 is normal sample of real data. data3 = Drop[ExcelWorkBook[[Column1 ;; Column4]], None, 1]; data2 = {a #, b #, c #, d #} & /@ Range[1, 10^5]; data = RandomReal[{0, 1}, {10^6, 4}]; Here is my benchmark code kptnw[list_] := Transpose[{Table[First@#, {Length@# - 1}], Rest@#}, {3, 1, 2}] &@list kptnw2[list_] := Transpose[{ConstantArray[First@#, Length@# - 1], Rest@#}, {3, 1, 2}] &@list OleksandrR[list_] := Flatten[Outer[List, List@First[list], Rest[list], 1], {{2}, {1, 4}}] paradox2[list_] := Partition[Riffle[list[[1]], #], 2] & /@ Drop[list, 1] RM[list_] := FoldList[Transpose[{First@li...

dynamic - 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? Or is there something else I should have to use? Answer ArrayPlot is much more than just a simple array like Grid : it represents a ranged 2D dataset, and its visualization can be finetuned by options like DataReversed and DataRange . These features make it quite complicated to reproduce the same layout and order with Grid . Here I offer AnnotatedArrayPlot which comes in handy when your dataset is more than just a flat 2D array. The dynamic interface allows highlighting individual cells and possibly interacting with them. AnnotatedArrayPlot works the same way as ArrayPlot and accepts the same options plus Enabled , HighlightCoordinates , HighlightStyle and HighlightElementFunction . data = {{Missing["HasSomeMoreData"], GrayLevel[ 1], {RGBColor[0, 1, 1], RGBColor[0, 0, 1], GrayLevel[1]}, RGBColor[0, 1, 0]}, {GrayLevel[0], GrayLevel...