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File:Sine of distance from origin.png

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Sine_of_distance_from_origin.png(800 × 589 pixels, file size: 144 KB, MIME type: image/png)

Description

A 3D surface plot of the sine of distance from the origin: .

This represents the displacement for a point source in 2D, with no attenuation due to distance.
Date
Source

Self-Made with Mathematica

 
This diagram was created with Mathematica.
Author Inductiveload
Permission
(Reusing this file)
Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
     Mathematical Function Plot
Description Sine of the distance from the origin
Equation
Co-ordinate System Cartesian
X Range -2π .. 2π
Y Range -2π .. 2π

Mathematica Code

Please be aware that at the time of uploading (21:24, 13 June 2007 (UTC)), this code may take a significant amount of time to execute on a consumer-level computer.


This uses Chris Hill's antialiasing code to average pixels and produce a less jagged image. The original code can be found here.
\!\(gr = Plot3D[\[IndentingNewLine]Sin[Sqrt[x^2 + 
      y^2]], \[IndentingNewLine]{x, \(-2\)\ Pi, 2  Pi}, \[IndentingNewLine]{
      y, \(-2\)\ Pi, 2  
      Pi}, \[IndentingNewLine]PlotPoints -> 600, \[IndentingNewLine]Mesh -> 
      False, \[IndentingNewLine]BoxRatios -> {4,
             4, 1}, \[IndentingNewLine]Axes -> True, \[IndentingNewLine]Boxed \
-> True, \[IndentingNewLine]AxesLabel -> {"\<x\>", "\<y\>", 
      "\<u\>"}, \[IndentingNewLine]Ticks -> {\[IndentingNewLine]{\
\[IndentingNewLine]{\(-2\) 
      Pi, \(-2\) π, 0.01, {AbsoluteThickness[4]}}, \[IndentingNewLine]{\(-
      Pi\), \(-π\), 0.01, {AbsoluteThickness[4]}}, \[IndentingNewLine]{0, 0, 
      0.01, {AbsoluteThickness[4]}}, \[IndentingNewLine]{Pi, π, 0.01, {
      AbsoluteThickness[
      4]}}, \[IndentingNewLine]{2  
        Pi, 2  π, 0.01, {AbsoluteThickness[4]}}\[IndentingNewLine]}, \
\[IndentingNewLine]{\[IndentingNewLine]{\(-2\) 
        Pi, \(-2\) π, 0.01, {AbsoluteThickness[
          4]}}, \[IndentingNewLine]{\(-Pi\), \(-π\), 
            0.01, {AbsoluteThickness[
      4]}}, \[IndentingNewLine]{0, 0, 0.01, {
        AbsoluteThickness[4]}}, \[IndentingNewLine]{Pi, π, 0.01, \
{AbsoluteThickness[4]}}, \[IndentingNewLine]{2  Pi, 2  π, 0.01, {
            AbsoluteThickness[
            4]}}\[IndentingNewLine]}, \
\[IndentingNewLine]{\[IndentingNewLine]{\(-1\), \(-1\), 
                  0.01, {AbsoluteThickness[4]}}, \[IndentingNewLine]{0, 0, 
          0.01, {AbsoluteThickness[
          4]}}, \[IndentingNewLine]{1, 1, 0.01, {
            AbsoluteThickness[4]}}\[IndentingNewLine]}\[IndentingNewLine]}, \
\[IndentingNewLine]TextStyle -> {FontSize -> 
            40}, \[IndentingNewLine]BoxStyle -> {AbsoluteThickness[4]}, \
\[IndentingNewLine]ImageSize -> 200, \[IndentingNewLine]]\[IndentingNewLine]\
\[IndentingNewLine]
  aa[gr_] := Module[{siz, kersiz, ker, dat, as, ave, is,
                   ar}, \[IndentingNewLine]is = ImageSize /. Options[gr, \
ImageSize]; \[IndentingNewLine]ar = AspectRatio /. Options[gr, 
      AspectRatio]; \[IndentingNewLine]If[\(! NumberQ[is]\), is = 288]; \
\[IndentingNewLine]kersiz = 
                      4; \[IndentingNewLine]img = \
ImportString[ExportString[gr, "\<PNG\>", ImageSize -> \((is\ 
      kersiz)\)], 
        "\<PNG\>"]; \[IndentingNewLine]siz = Reverse@\(Dimensions[img[\([1, 
                1]\)]]\)[\([{1, 2}]\)]; \[IndentingNewLine]ker = 
      Table[N[1/
        kersiz\^2], {kersiz}, {kersiz}]; \[IndentingNewLine]dat = N[img[\([
          1, 1]\)]]; \[IndentingNewLine]as = Dimensions[
      dat]; \[IndentingNewLine]ave = 
          Partition[Transpose[\(Flatten[ListConvolve[ker, dat[\([All, 
      All, #]\)]]] &\) /@ Range[as[\([3]\)]]], as[\([2]\)] - kersiz + 
      1]; \[IndentingNewLine]ave = 
      Take[ave, 
        Sequence @@ \((\({1, \(Dimensions[ave]\)[\([#]\)], kersiz} &\) /@
                   Range[Length[Dimensions[
                    ave]] - 1])\)]; \
\[IndentingNewLine]Show[Graphics[Raster[ave, {{0, 0}, siz/
              kersiz}, {0, 255}, ColorFunction -> RGBColor]], 
              PlotRange -> {{0, siz[\([1]\)]/kersiz}, {0, siz[\([2]\)]/
      kersiz}}, ImageSize -> is, 
      AspectRatio -> ar]\[IndentingNewLine]]\[IndentingNewLine]
  finalgraphic = aa[gr]\)

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13 June 2007

File history

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Date/TimeThumbnailDimensionsUserComment
current21:19, 13 June 2007Thumbnail for version as of 21:19, 13 June 2007800 × 589 (144 KB)Inductiveload{{Information |Description=A 3D surface plot of <math>u=\sin \left( \sqrt{x^2 + y^2} \right). This represents the displacement for a point source in 2D, with no attenuation due to distance. |Source=Self-Made with Mathematica {{Mathemetica}} |Date=13/06/2

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