NXplot3D v3.2 (Dec 7,1994)
by Steve Ludtke
Click here to download
NXplot3d is a 3d function/data plotting program. It incorporates features
for producing publication quality (or nearly publication quality) plots.
This includes tick marks, labels, contour overlays, etc ... It can plot
3d functions (4d with time), mesh data, scatter plot data, and now, USGS
DEMs (Digital Elevation Maps).
Select an animation. All Animations are mpg's which reduces the quality
substantially, but also reduces the size by ~30X:
Sample 1: Morph of a P to a D orbital with
'data mesh' enabled
Sample 2: Example of DEM display and
transparency. This is Mt. St. Helens before (transparent red) and after.
Sample 3: Waves from (or into) a source
at the center of the plot (looks better in reverse).
Click on a picture for an expanded view:
(picture quality was reduced by the conversion to 8 bit GIF format)
A
plot of a data set with a data mesh surface map.
A
plot of an equation with "planes" and a contour surface texture.
Spherical
plot of P orbitals.
A
plot of some data showing the new histogram style.
A
sample density plot with a contour overlay.
DEM
plot of a small part of Lake Powell, large bay near center of screen is
Bullfrog Basin. 30m contours
This is a brand new version (Dec 94) with the following new features:
-
DEMs (Digital Elevation Maps) can now be viewed (after processing with
demproc, also in this archive). Please read the docs before trying to use
this feature. You can get DEM's for any part of the country from the USGS.
You can download DEMs with 200 foot horizontal resolution from http://edcwww.cr.usgs.gov/eros-home.html.
-
Gradient surface mapping is now supported. Rather than coloring the
surface based on the z value at each position, the surface will be colored
so steep slopes are considered high and flat areas are considered low,
ie - sqrt((dz/dx)^2+(dz/dy)^2)
-
Surface mapping based on another data set is also now supported (for
data set 0 only). This feature still needs a bit of work...
-
Adjustable transparency (alpha) for data sets is now supported in photorealistic
plots. Adjusting alpha will have no effect on the interactive display.
Return
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Last updated 5/6/97
Mail coments and suggestions to:sludtke@bcm.tmc.edu
A
plot of an equation with "planes" and a contour surface texture.
Spherical
plot of P orbitals.
A
plot of some data showing the new histogram style.
A
sample density plot with a contour overlay.
DEM
plot of a small part of Lake Powell, large bay near center of screen is
Bullfrog Basin. 30m contours