ONEDimensional u v u₀ v₀

This keyword allows you do make 1D x-y plots (instead of 2D contour plots) of the distribution of density along a specified line of the current section (ie plotting the distribution of density along an arbitrary direction in 3D is not supported. The line must belong to the current map section). The first two parameters define the direction of the axis [uv] whose density is to be plotted, where u is measured along the fast-changing axis of the current section, and v along the medium axis (see keyword PERM, section 7.1.3). The two additional parameters define the starting point (origin) for the 1D graph in the two-dimensional section (usually 0.0). u₀ and v₀ should be given in fractional coordinates (in the crystallographic frame) along the fast- and medium-changing axes. When 1D data are given on input (in the form of h00, 0k0 or 00l data), GraphEnt will automatically make the decisions for you.

When 1D data are plotted, the program will draw a horizontal dotted line at the mean density, and a series of tick marks at n x () where () is the rms deviation of the 1D data. Please also note that the program will take values (from the underlying 2D section) at regularly spaced intervals using a simple 4-point linear interpolation.