Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Because the variation in radius is small, data points are shown on the surface of a sphere with circles/rectangles for points falling on the near/far side of the sphere. The RGB color scales were proportional to the XYZ coordinates of points.
