function file "colourgrade_plot_hgeo.m"

Function cg = colourgrade_plot_hgeo(cg,imedium)

inserts intermediate data to the input struct cg,
in ordre to draw a colour bar in an html/javascript
page for display in a webbrowser. 

The function is called by m-file colourgrade_plot.m.

See into the help text of m-file colourgrade_plot.m 
for further explanation.

At input, the struct cg must have the following
fields:
  cg.colourmap
  cg.data_plot{imedium}
  cg.medium_plot{imedium}
  cg.ul_plot{imedium}
  cg.linecolour_plot{imedium}
  cg.fontsizefactor_plot{imedium}
  cg.titlesizefactor_plot{imedium}
  cg.vh_plot{imedium}
  cg.vv_plot{imedium}
  cg.textcode_plot{imedium}

At output, the struc cg contains new or renewed
fields:
  cg.hgeo{imedium}

The function internally calls the following
non-standard m-file:
-- reindexise.m
-- hgeo_to_html.m


(c) 2026 fabien van mook

2026.08.20 release of this file within package "fvm-colourgrade" under GNU GPLv3+