a surface where the data has some spatially constant value

a surface where the value of the property is the same everywhere on the surface

a surface with an equal value of something at all points, in this case, an equal value of charge density

a three-dimensional analog of an isopleth

Perspective representation of 3-D "volume" of data. The isosurface is defined by a threshold value, and it passes through all data points that equal this value. The routines EZISOS and ISOSRF draw isosurfaces. See Surface.

a visualization technique that produces a three-dimensional surface by connecting all the data points with one response value.

An isosurface is a three-dimensional analog of an isocontour. It is a surface that represents points of a constant value (e.g. pressure, temperature, velocity, density) within a volume of space; in other words, it is a level set of a continuous function whose domain is 3D-space.