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I have a data set consisting of 4 points. Each point has 4 columns. I want to plot that data set with 4D color function where 4th column of each dataset will be plotted by the color function. The range of the 4th column is {2, 9}. However the PlotLegends bar is showing values ranging {0, 1}.

 rs13pts1 = {{1, .2, .6, 6}, {1.2, .4, .8, 7}, {1.4, .6, 1, 8}, {1.6, .8, 1.2, 9}};

Block[{i = 1}, 
 ListPointPlot3D[rs13pts1[[All, ;; 3]], PlotRange -> All, 
  ColorFunction -> 
   Function[{x, y, z}, 
    ColorData["RedGreenSplit"][rs13pts1[[i++, 4]]]], 
  PlotLegends -> BarLegend["RedGreenSplit"]]]
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  • $\begingroup$ "The range of 4th column is 2-6" - but the fourth coordinates of your points are outside that specified range; what do you actually want? $\endgroup$
    – J. M.'s lack of A.I. ♦
    Jan 6, 2017 at 10:59
  • $\begingroup$ Now it is corrected. However problem not solved! $\endgroup$
    – Abhijit Saha
    Jan 6, 2017 at 11:03
  • $\begingroup$ Like this? $\endgroup$
    – J. M.'s lack of A.I. ♦
    Jan 6, 2017 at 11:10
  • $\begingroup$ Yes. Absolutely, Could you please post the code. Thanks $\endgroup$
    – Abhijit Saha
    Jan 6, 2017 at 11:16

1 Answer 1

Reset to default
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rs13pts1 = {{1, .2, .6, 6}, {1.2, .4, .8, 7}, {1.4, .6, 1, 8}, {1.6, .8, 1.2, 9}};

I'd do

Block[{i = 1}, 
 ListPointPlot3D[rs13pts1[[All, ;; 3]], PlotRange -> All, 
  PlotStyle -> PointSize[Large], 
  ColorFunction -> (ColorData["RedGreenSplit"][
      Rescale[rs13pts1[[i++, 4]], {2, 9}, {0, 1}]] &), 
  PlotLegends -> BarLegend[{"RedGreenSplit", {2, 9}}]]]

enter image description here

where I

  1. added PlotStyle -> PointSize[Large] just for the colors of the points to be more visible in this example;
  2. altered PlotLegends by adding the interval {2, 9} to the BarLegend;
  3. Rescaled the ColorFunction from the interval {0, 1} to {2, 9}.
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