Intensity chart and Logarithmic Y axis !

[darkmask]

Hello,

How can I change the scale of the Y axis of an Itensity Chart?
I want to scale the Y axis logarithmic.

What can I do ?

THX

[altenbach]

An intensity graph takes a 2D array and thus assumes that all elements are linearly spaced in the plane (you can change the offset and multiplier for the mapping between x, y and the array indices). If you want a logarithmic scaling, you would need to remap the data into a new array accordingly. Shouldn't be too hard. 🙂

[Xaran]

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@altenbach wrote:

An intensity graph takes a 2D array and thus assumes that all elements are linearly spaced in the plane (you can change the offset and multiplier for the mapping between x, y and the array indices). If you want a logarithmic scaling, you would need to remap the data into a new array accordingly. Shouldn't be too hard. 🙂

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I have no idea at the moment how to remap the data. Could you give me some advice?

And if I had remapped the data, how could I rescale the y-axis?

[Blueprint]

Hey guys,

This thread is old, but the problem still persists in LV 2009. Very weird that they havent made it possible to adjust the scales.

Anyroad, remapping the data won't adjust the scales, just the data. The scale can only have linear spacing defined by the offset and multiplier.

So I guess using intensity graph if you want logarithmic scales is a dead end, so a 3D graph should be made instead.