Scaling the Z Axis

Mills · Post by **Mills** » Sat Mar 07, 2015 12:26 am

I am trying to plot the surface of a sphere.

The problem I'm having is the Z axis is not displayed using the same scale as the X and Y axes. The Z axis is about 1/2 the height of the X and Y axes for the same displacement. The result is an oblate spheroid (a football) rather than a sphere (a basketball).

How do I manually control the height of the Z axis?

If the equatorial diameter of the sphere is 6", I want the polar diameter to also be 6". Right now, Z is only about 3" (a 2:1 ratio).

Yes, the data set is correct.

Yes, the current display is technically correct but aesthetically unacceptable.

I have tried changing the extents for X and Y to no avail. I tried changing the aspect ratio of the window Dplot uses, to no avail. The software seems to rescale the Z axis whenever I change anything.

Post by **DPlotAdmin** » Sat Mar 07, 2015 2:21 am

Select Options>Scatter Plot Options. Set all scale factors to 1.

Mills · Post by **Mills** » Sat Mar 07, 2015 2:56 am

Thank you. I knew it was there somewhere, and I searched for a long time, I just did not see it.

Mills · Post by **Mills** » Sat Mar 07, 2015 2:59 am

Thank you. I knew it was there somewhere, and I searched for a long time, I just did not see it.