Difference between revisions of "Crop 2d.m"

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(Update function See also links and function index membership)
(removed link to deleted function page bloch_sph_plot.m (removed per IK instruction 2026-08-30))
 
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   crop_ranges - cropping bounds, supplied in the following
 
   crop_ranges - cropping bounds, supplied in the following
 
                 format: {[f1_min f1_max],[f2_min f2_max]}
 
                 format: {[f1_min f1_max],[f2_min f2_max]}
−
+
 
 +
The following subfields are required in the parameters structure:
 +
 
 
     parameters.sweep  -    one or two sweep widths, Hz
 
     parameters.sweep  -    one or two sweep widths, Hz
 
   
 
   
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           spec - 2D matrix containing the cropped spectrum
 
           spec - 2D matrix containing the cropped spectrum
 
   
 
   
−
     parameters - the updated parameters structure
+
     parameters - the updated parameters structure; the new
 +
                offset, sweep, and zerofill reproduce the
 +
                retained axis points on the ft_axis grid
  
 
==See also==
 
==See also==
−
[[plot_2d.m]], [[int_2d.m]], [[apodisation.m]], [[axis_1d.m]], [[bloch_sph_plot.m]], [[bwr_cmap.m]], [[contspacing.m]], [[cylgrid.m]], [[fid2ascii.m]], [[ft_axis.m]], [[heterodyne.m]], [[molplot.m]], [[mri_2d_plot.m]], [[plot_1d.m]], [[plot_3d.m]], [[plot_uf.m]], [[s2json.m]], [[scale_figure.m]], [[slice_2d.m]], [[stack_2d.m]], [[sweep2ticks.m]], [[volplot.m]], [[write_movie.m]], [[xyz2pd.m]], [[zoom_3d.m]], [[Import,_export,_and_visualisation]], [[Kernel_utilities]]
+
[[plot_2d.m]], [[int_2d.m]], [[apodisation.m]], [[axis_1d.m]], [[bwr_cmap.m]], [[contspacing.m]], [[cylgrid.m]], [[fid2ascii.m]], [[ft_axis.m]], [[heterodyne.m]], [[molplot.m]], [[mri_2d_plot.m]], [[plot_1d.m]], [[plot_3d.m]], [[plot_uf.m]], [[s2json.m]], [[scale_figure.m]], [[slice_2d.m]], [[stack_2d.m]], [[sweep2ticks.m]], [[volplot.m]], [[write_movie.m]], [[xyz2pd.m]], [[zoom_3d.m]], [[Import,_export,_and_visualisation]], [[Kernel_utilities]]
  
 
''Version 2.1, authors: [[Ilya Kuprov]]''
 
''Version 2.1, authors: [[Ilya Kuprov]]''

Latest revision as of 10:10, 30 August 2026

2D spectrum cropping utility that crops spectra to user-specified ppm ranges while respecting digital resolution.

Syntax

    [spec,parameters]=crop_2d(spin_system,spec,parameters,crop_ranges)

Parameters

         spec - 2D matrix containing the spectrum

  crop_ranges - cropping bounds, supplied in the following
                format: {[f1_min f1_max],[f2_min f2_max]}

The following subfields are required in the parameters structure:

   parameters.sweep   -    one or two sweep widths, Hz

   parameters.spins   -    cell array with one ot two character
                           strings specifying the working spins.

   parameters.offset  -    one or two transmitter offsets, Hz

Outputs

         spec - 2D matrix containing the cropped spectrum

   parameters - the updated parameters structure; the new
                offset, sweep, and zerofill reproduce the
                retained axis points on the ft_axis grid

See also

plot_2d.m, int_2d.m, apodisation.m, axis_1d.m, bwr_cmap.m, contspacing.m, cylgrid.m, fid2ascii.m, ft_axis.m, heterodyne.m, molplot.m, mri_2d_plot.m, plot_1d.m, plot_3d.m, plot_uf.m, s2json.m, scale_figure.m, slice_2d.m, stack_2d.m, sweep2ticks.m, volplot.m, write_movie.m, xyz2pd.m, zoom_3d.m, Import,_export,_and_visualisation, Kernel_utilities

Version 2.1, authors: Ilya Kuprov