Editing Contour line (section)

=== Thermodynamics, engineering, and other sciences ===
Various types of graphs in [[thermodynamics]], engineering, and other sciences use isobars (constant pressure), isotherms (constant temperature), isochors (constant specific volume), or other types of isolines, even though these graphs are usually not related to maps.  Such isolines are useful for representing more than two dimensions (or quantities) on two-dimensional graphs.  Common examples in thermodynamics are some types of [[phase diagram]]s.

'''[[Isocline]]s''' are used to solve [[ordinary differential equations]].

In interpreting [[radar]] images, an '''isodop''' is a line of equal [[Doppler effect|Doppler]] velocity, and an '''isoecho''' is a line of equal radar reflectivity.

In the case of hybrid contours, energies of hybrid orbitals and the energies of pure atomic orbitals are plotted. The graph obtained is called hybrid contour.