3D surface plot with log-log axes

[kdenney]

Hello,

I currently have a nice 3D surface plot, but some of the data is scrunched in one corner of the chart. Aside from zooming in on the plot and losing the total tradespace of values, I want to change the x-y axes to log-log. However, the type of chart (FileType(11)) doesn't seem to give this as an option. Is this doable?

Thanks in advance,

-kd

[DPlotAdmin]

Yes and no, but mostly no. If your data consists of arbitrarily-spaced X,Y,Z points (rather than a table of Z values on a rectangular grid), then you can use Edit>Operate on X with X=log10(X) and Operate on Y with Y=log10(Y). The trouble with this is the numbers along the axes (and anything reported by DPlot) will be the logarithms of the values rather than the actual values. For presentation purposes only, you could fool with the axis titles to make it clear what the numbers represent. OR you could use "None" for the number format on X and Y and add your own labels with Text>X,Y,Z Labels.