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When I try to add a bar legend to a log-scale ListDensityPlot, a decimal point appears at the weird position.

For example,

ListDensityPlot[Table[Power[10, -(i + j)/25], {i, 0, 100}, {j, 0, 100}], PlotRange -> All, PlotLegends -> Automatic, ScalingFunctions -> "Log"]

produces a legend

Decimal point presenting after the number 10.

No matter what I try (as far as I know), this weird decimal point after '10' never disappears and even the ScientificForm doesn't work as expected. How can I deal with this issue?

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  • $\begingroup$ Sorry, but I am a bit confused as to why is that a problem? $\endgroup$ Commented Mar 16 at 9:42
  • $\begingroup$ @Erosannin When I try to use scientific notation, it converts '0.001' to '1.x10^-3' but doesn't convert '10.^-6' into '1.x10^-6'. If I force it to convert every numberform then it converts '10.' into '1.x10^1', thus yielding '1.x10^1-6'. I mean the placing of decimal point is inconsistent. $\endgroup$ Commented Mar 16 at 10:09
  • $\begingroup$ Related: here, here $\endgroup$ Commented Mar 16 at 22:41

1 Answer 1

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Here's how you can avoid that

ListDensityPlot[Table[Power[10, -(i + j)/25], {i, 0, 100}, {j, 0, 100}],
  PlotRange -> All, 
 PlotLegends -> 
  BarLegend[{Automatic, {10^-8, 10^4}}, 
   Ticks -> 
    Table[{10^i, 
      ToString[Superscript["10", i], StandardForm]}, {i, -8, 4, 2}], 
   ColorFunctionScaling -> True], ScalingFunctions -> "Log"]

image

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  • $\begingroup$ Thank you! I've solved this immediate problem, but it's sad that the only way is to set the ticks manually. $\endgroup$ Commented Mar 16 at 12:02

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