Electron density maps: Difference between revisions
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An isomesh is an isosurface represented as a mesh. An example is in the figure at the upper right of this page. An isosurface is a surface placed at a specific value of a continuous parameter, so that it represents the boundary between higher and lower values of that parameter. Perhaps a geographic map is a more familiar example, where each [http://wiki.gis.com/wiki/index.php/Isoline isoline] is a contour line joining positions with the same elevation. In an electron density map, an isomesh joins positions with the same electron density. | An isomesh is an isosurface represented as a mesh. An example is in the figure at the upper right of this page. An isosurface is a surface placed at a specific value of a continuous parameter, so that it represents the boundary between higher and lower values of that parameter. Perhaps a geographic map is a more familiar example, where each [http://wiki.gis.com/wiki/index.php/Isoline isoline] is a contour line joining positions with the same elevation. In an electron density map, an isomesh joins positions with the same electron density. | ||
Electron density values fill 3-dimensional space of the map. The standard deviation of these values, sigma, is used as a unit of electron density. | Electron density values fill 3-dimensional space of the map (see this interactive visualization). The standard deviation of these values, sigma, is used as a unit of electron density. | ||
====Temperature=== | ====Temperature=== | ||
