CPT_FROM_COLORRANGE configure colortable to desired color values and ranges
Purpose: Make a colortable file with desired color values and ranges, that
will be passed in the makecpt function that uses this input to make a color
that can be used by GMT. i.e. makecpt -Ccolorrange.cpt etc.
USAGE: e.g. file = cpt_from_colorrange(
struct('colors',{{{0.25,'255/255/255'},{0.75,'0/0/0'}}},...
'color_model','RGB'))
IN: structure.
colors = {{value,'color'},{value2,'color2'},etc.}; (manditory)
color_model = 'RGB', 'HSV'
OUT: filename
Created by Salomon Eliasson
$Id: cpt_from_colorrange.m 7954 2012-10-28 20:57:41Z seliasson $0001 function filecpt = cpt_from_colorrange(colorrange) 0002 % CPT_FROM_COLORRANGE configure colortable to desired color values and ranges 0003 % 0004 % Purpose: Make a colortable file with desired color values and ranges, that 0005 % will be passed in the makecpt function that uses this input to make a color 0006 % that can be used by GMT. i.e. makecpt -Ccolorrange.cpt etc. 0007 % 0008 % USAGE: e.g. file = cpt_from_colorrange( 0009 % struct('colors',{{{0.25,'255/255/255'},{0.75,'0/0/0'}}},... 0010 % 'color_model','RGB')) 0011 % 0012 % IN: structure. 0013 % colors = {{value,'color'},{value2,'color2'},etc.}; (manditory) 0014 % color_model = 'RGB', 'HSV' 0015 % 0016 % OUT: filename 0017 % 0018 % Created by Salomon Eliasson 0019 % $Id: cpt_from_colorrange.m 7954 2012-10-28 20:57:41Z seliasson $ 0020 0021 % COLOR MODEL 0022 if ~isfield(colorrange,'color_model') 0023 model = 'RGB'; 0024 else 0025 model = colorrange.color_model; 0026 end 0027 C = colorrange.colors; 0028 assert((length(C)-1)>0,['gmtlab:' mfilename,':badInput'],... 0029 ['Either there is only one level'... 0030 'or the cell is constructed incorrectly (see help gmt_plot)']) 0031 0032 % format to print z-slice in cptfile 0033 strtab = '\t%s\t%s\t%s\t'; 0034 0035 filecpt = 'colorrange.cpt'; 0036 fid = fopen(filecpt,'w'); 0037 CO = onCleanup(@() fclose(fid)); 0038 0039 % header 0040 fprintf(fid,'%s\n','#cpt file created by: cpt_from_colorrange.m'); 0041 fprintf(fid,'%s\n',sprintf('#COLOR_MODEL = %s',model)); 0042 0043 % make z-slices (val1 Red1 Green1 Blue1 val2 Red2 Green2 Blue2) 0044 for ii = 1:length(C)-1 0045 val = C{ii}{1}; val2 = C{ii+1}{1}; 0046 assert(~isequal(val,val2),['gmtlab:' mfilename ':badInput'],... 0047 'consecutive z values may not have the same value') 0048 color = splitstring(C{ii}{2},'/'); 0049 color2 = splitstring(C{ii+1}{2},'/'); 0050 fprintf(fid,[sprintf('%s',getAnnotFormat(val)) strtab],... 0051 val, color{1}, color{2}, color{3}); 0052 fprintf(fid,[sprintf('%s',getAnnotFormat(val2)) strtab '\n'],... 0053 val2,color2{1},color2{2},color2{3}); 0054 end