plot_3d.m
Volume isosurface plotting utility with non-linear adaptive surface spacing. The function plots the 3D volume and the three projections onto the coordinate planes.
Syntax
plot_3d(spin_system,spectrum,parameters,nsurf,delta,k,signs)
Parameters
spectrum - a real cube containing the 3D NMR spectrum
parameters.sweep - three sweep widths, Hz
parameters.spins - cell array with three character
strings specifying the working
spins.
parameters.offset - three transmitter offsets, Hz
parameters.axis_units - axis units ('ppm','Hz','Gauss')
nsurf - the number of surfaces, a reasonable value is 20
delta - minimum and maximum elevation (as a fraction of the
total intensity) of the surfaces above the baseline.
A good starting value is [0.02 0.2 0.02 0.2]. The
first pair of numbers refers to the positive surfa-
ces and the second pair to the negative ones.
k - a coefficient that controls the curvature of the surface
spacing function: k=1 corresponds to linear spacing and
k>1 bends the spacing curve to increase the sampling den-
sity near the baseline. A reasonable value is 2.
signs - can be set to 'positive', 'negative' or 'both' - this
will cause the corresponding surfaces to be plotted.
Outputs
this function creates a figure
Notes
The following functions are used to compute surface levels:
cont_levs_pos=delta(2)*smax*linspace(0,1,ncont).^k+smax*delta(1); cont_levs_neg=delta(2)*smin*linspace(0,1,ncont).^k+smin*delta(1);
where smin and smax are computed from the spectrum cube.
See also
plot_1d.m, plot_2d.m, int_2d.m, volplot.m, molplot.m, mri_2d_plot.m, slice_2d.m, hfc_display.m, cst_display.m, apodisation.m, axis_1d.m, bloch_sph_plot.m, bwr_cmap.m, contspacing.m, crop_2d.m, cylgrid.m, fid2ascii.m, ft_axis.m, heterodyne.m, plot_uf.m, s2json.m, scale_figure.m, stack_2d.m, sweep2ticks.m, write_movie.m, xyz2pd.m, zoom_3d.m, Import,_export,_and_visualisation, Kernel_utilities
Version 2.3, authors: Ilya Kuprov
