harrinlu
/
NComms2021analysis
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Scripts and data necessary to reproduce figures from "Quantifying uncertainty in aggregated climate change risk assessments"
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
23 Commits
1 Branch
0 Tags
4.8 MiB
 
 
 
 
Tree: cb19a47fa3
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'cb19a47fa3'
${ noResults }
NComms2021analysis/brewermap.m

419 lines
18 KiB
Raw Blame History

function [map,num,typ] = brewermap(N,scheme)
% The complete selection of ColorBrewer colorschemes (RGB colormaps).
%
% (c) 2015 Stephen Cobeldick
%
% ### Function ###
%
% Returns any RGB colormap from the ColorBrewer colorschemes, especially
% intended for mapping and plots with attractive, distinguishable colors.
%
% Syntax (basic):
% map = brewermap(N,scheme); % Select colormap length, select any colorscheme.
% brewermap('demo') % View a figure showing all ColorBrewer colorschemes.
% [...,num,typ] = brewermap(...); % The current colorscheme's number of nodes and type.
%
% Syntax (preselect colorscheme):
% old = brewermap(scheme); % Preselect any colorscheme, return the previous scheme.
% map = brewermap(N); % Use preselected scheme, select colormap length.
% map = brewermap; % Use preselected scheme, same length as current figure's colormap.
%
% This product includes color specifications and designs developed by Cynthia Brewer.
% See the ColorBrewer website for further information about each colorscheme,
% colorblind suitability, licensing, and citations: http://colorbrewer.org/
%
% See also CUBEHELIX RGBPLOT3 RGBPLOT COLORMAP COLORBAR PLOT PLOT3 SURF CONTOURF IMAGE CONTOURCMAP AXES SET JET LBMAP
%
% ### Color Schemes ###
%
% To reverse the colormap sequence simply prefix the string token with '*'.
%
% Each colorscheme is defined by a set of hand-picked RGB values (nodes).
% If <N> is greater than the requested colorscheme's number of nodes then:
% - Sequential and Diverging schemes are interpolated to give larger colormaps.
% - Qualitative schemes throw an error.
% Else:
% - Exact values from the ColorBrewer sequences are returned for all schemes.
%
% # Diverging #
%
% Scheme|'BrBG'|'PRGn'|'PiYG'|'PuOr'|'RdBu'|'RdGy'|'RdYlBu'|'RdYlGn'|'Spectral'|
% ------|------|------|------|------|------|------|--------|--------|----------|
% Nodes | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
%
% # Qualitative #
%
% Scheme|'Accent'|'Dark2'|'Paired'|'Pastel1'|'Pastel2'|'Set1'|'Set2'|'Set3'|
% ------|--------|-------|--------|---------|---------|------|------|------|
% Nodes | 8 | 8 | 12 | 9 | 8 | 9 | 8 | 12 |
%
% # Sequential #
%
% Scheme|'Blues'|'BuGn'|'BuPu'|'GnBu'|'Greens'|'Greys'|'OrRd'|'Oranges'|'PuBu'|
% ------|-------|------|------|------|--------|-------|------|---------|------|
% Nodes | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
%
% Scheme|'PuBuGn'|'PuRd'|'Purples'|'RdPu'|'Reds'|'YlGn'|'YlGnBu'|'YlOrBr'|'YlOrRd'|
% ------|--------|------|---------|------|------|------|--------|--------|--------|
% Nodes | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
%
% ### Examples ###
%
% % Plot a scheme's RGB values:
% rgbplot(brewermap(13,'Blues')) % standard
% rgbplot(brewermap(13,'*Blues')) % reversed
%
% % View information about a colorscheme:
% [~,num,typ] = brewermap(0,'Paired')
% num = 12
% typ = 'Qualitative'
%
% % Multiline plot using matrices:
% N = 6;
% axes('ColorOrder',brewermap(N,'Pastel2'),'NextPlot','replacechildren')
% X = linspace(0,pi*3,1000);
% Y = bsxfun(@(x,n)n*sin(x+2*n*pi/N), X.', 1:N);
% plot(X,Y, 'linewidth',4)
%
% % Multiline plot in a loop:
% N = 6;
% set(0,'DefaultAxesColorOrder',brewermap(N,'Accent'))
% X = linspace(0,pi*3,1000);
% Y = bsxfun(@(x,n)n*sin(x+2*n*pi/N), X.', 1:N);
% for n = 1:N
% plot(X(:),Y(:,n), 'linewidth',4);
% hold all
% end
%
% % New colors for the "colormap" example:
% load spine
% image(X)
% colormap(brewermap([],'*YlGnBu'))
%
% % New colors for the "surf" example:
% [X,Y,Z] = peaks(30);
% surfc(X,Y,Z)
% colormap(brewermap([],'RdYlGn'))
% axis([-3,3,-3,3,-10,5])
%
% % New colors for the "contourcmap" example:
% brewermap('*PuOr'); % preselect the colorscheme.
% load topo
% load coast
% figure
% worldmap(topo, topolegend)
% contourfm(topo, topolegend);
% contourcmap('brewermap', 'Colorbar','on', 'Location','horizontal',...
% 'TitleString','Contour Intervals in Meters');
% plotm(lat, long, 'k')
%
% ### Input & Output Arguments ###
%
% Inputs (*=default):
% N = NumericScalar, N>=0, an integer to define the colormap length.
% = *[], use the length of the current figure's colormap (see "colormap").
% = StringToken, to preselect this ColorBrewer scheme for later use.
% = 'demo', create a figure showing all of the ColorBrewer schemes.
% scheme = StringToken, a ColorBrewer scheme to select the colorscheme.
% = *none, uses the default colorscheme (must be set previously!).
%
% Outputs:
% map = NumericMatrix, size Nx3, a colormap of RGB values between 0 and 1.
% num = NumericScalar, the number of nodes defining the ColorBrewer scheme.
% typ = String, the colorscheme type: 'Diverging'/'Qualitative'/'Sequential'.
%
% [map,num,typ] = brewermap(*N,*scheme)
persistent dcs
%
if nargin==0
% Use the current figure's colormap length, and the preselected colorscheme.
assert(~isempty(dcs),'You need to preselect a colorscheme before trying this!')
[map,num,typ] = cbSample([],dcs);
elseif nargin==2
% Use the provided colormap length and the provided colorscheme.
assert(isnumeric(N),'First argument must be a numeric scalar, or empty.')
assert(ischar(scheme)&&isrow(scheme),'Second argument must be a string.')
[map,num,typ] = cbSample(N,scheme);
elseif isnumeric(N)
% Use the provided colormap length, and the preselected colorscheme.
assert(~isempty(dcs),'You need to preselect a colorscheme before trying this!')
[map,num,typ] = cbSample(N,dcs);
else% String
assert(ischar(N)&&isrow(N),'First argument must be a string or numeric.')
switch N
case 'demo'
% Plot all colorschemes in a figure.
cbDemoFig
case 'list'
% Return a list of all available colorschemes.
map = cbListTok;
[num,typ] = cellfun(@cbSelect,map,'UniformOutput',false);
num = cat(1,num{:});
otherwise
% Store the preselected colorscheme token.
map = dcs;
[num,typ] = cbSelect(N(1+strncmp('*',N,1):end));
dcs = N;
end
end
%
end
%----------------------------------------------------------------------END:brewermap
function [map,num,typ] = cbSample(N,tok)
% Pick a colorscheme, downsample/interpolate to the requested colormap length.
%
if isempty(N)
N = size(get(gcf,'colormap'),1);
else
assert(isscalar(N)&&isreal(N),'First argument must be a real numeric scalar, or empty.')
end
%
if strncmp('*',tok,1);
vec = N:-1:1;
tok = tok(2:end);
else
vec = 1:+1:N;
end
%
[num,typ,rgb] = cbSelect(tok);
%
if strncmpi(typ,'Q',1)
% Exact (Qualitative).
assert(N<=num,'Colorscheme "%s" maximum colormap length: %d. Requested: %d.',tok,num,N)
map = rgb(vec,:);
elseif N<num
% Downsample (Diverging / Sequential).
map = rgb(cbIndex(N,num,typ,vec),:);
elseif N>num
% Interpolate (Diverging / Sequential).
xi = (vec-1).' / (N-1);
map = interp1q((1:num).', rgb, num*xi + xi(end:-1:1));
%map = interp1((1:num).', rgb, num*xi + xi(end:-1:1), 'pchip');
else
% Exact (Diverging / Sequential).
map = rgb(vec,:);
end
%
end
%----------------------------------------------------------------------END:cbSample
function cbDemoFig
% Creates a figure showing all of the ColorBrewer colorschemes.
%
persistent cbh axh
%
seq = cbListTok;
xmx = max(cellfun(@cbSelect,seq));
ymx = numel(seq);
%
if ishghandle(cbh)
figure(cbh);
delete(axh);
else
cbh = figure('HandleVisibility','callback', 'IntegerHandle','off',...
'NumberTitle','off', 'Name',[mfilename,' Demo'],'Color','white');
end
axh = axes('Parent',cbh, 'Color','none',...
'XTick',0:xmx, 'YTick',0.5:ymx, 'YTickLabel',seq, 'YDir','reverse');
title(axh,['ColorBrewer Color Schemes (',mfilename,'.m)'], 'Interpreter','none')
xlabel(axh,'Scheme Nodes')
ylabel(axh,'Scheme Name')
%
for y = 1:ymx
[num,typ,rgb] = cbSelect(seq{y});
for x = 1:num
patch([x-1,x-1,x,x],[y-1,y,y,y-1],1, 'FaceColor',rgb(x,:), 'Parent',axh)
end
text(xmx+0.1,y-0.5,typ, 'Parent',axh)
end
%
end
%----------------------------------------------------------------------END:cbDemoFig
function idx = cbIndex(N,num,typ,vec)
% Ensure exactly the same colors as in the online ColorBrewer schemes.
%
if strncmp('D',typ,1) && 3<=N && N<=11
switch N
case 3
idx = [5,8,11];
case 4
idx = [3,6,10,13];
case 5
idx = [3,6,8,10,13];
case 6
idx = [2,5,7,9,11,14];
case 7
idx = [2,5,7,8,9,11,14];
case 8
idx = [2,4,6,7,9,10,12,14];
case 9
idx = [2,4,6,7,8,9,10,12,14];
case 10
idx = [1,2,4,6,7,9,10,12,14,15];
case 11
idx = [1,2,4,6,7,8,9,10,12,14,15];
end
idx = idx(vec);
elseif strncmp('S',typ,1) && 3<=N && N<=9
switch N
case 3
idx = [3,6,9];
case 4
idx = [2,5,7,10];
case 5
idx = [2,5,7,9,11];
case 6
idx = [2,4,6,7,9,11];
case 7
idx = [2,4,6,7,8,10,12];
case 8
idx = [1,3,4,6,7,8,10,12];
case 9
idx = [1,3,4,6,7,8,10,11,13];
end
idx = idx(vec);
else
% Evenly spaced downsampling:
idx = round((1+num) * vec / (1+N));
end
%
end
%----------------------------------------------------------------------END:cbIndex
function seq = cbListTok
% Return a list of all colorschemes, sorted by type and scheme name.
%
seq = {'BrBG';'PRGn';'PiYG';'PuOr';'RdBu';'RdGy';'RdYlBu';'RdYlGn';'Spectral';'Accent';'Dark2';'Paired';'Pastel1';'Pastel2';'Set1';'Set2';'Set3';'Blues';'BuGn';'BuPu';'GnBu';'Greens';'Greys';'OrRd';'Oranges';'PuBu';'PuBuGn';'PuRd';'Purples';'RdPu';'Reds';'YlGn';'YlGnBu';'YlOrBr';'YlOrRd'};
%
end
%----------------------------------------------------------------------END:cbListTok
function [num,typ,rgb] = cbSelect(tok)
% Return the length, type and RGB values of any colorscheme.
%
switch lower(tok) % ColorName
case 'brbg' % BrBG
rgb = [84,48,5;140,81,10;166,97,26;191,129,45;216,179,101;223,194,125;246,232,195;245,245,245;199,234,229;128,205,193;90,180,172;53,151,143;1,133,113;1,102,94;0,60,48];
typ = 'Diverging';
case 'prgn' % PRGn
rgb = [64,0,75;118,42,131;123,50,148;153,112,171;175,141,195;194,165,207;231,212,232;247,247,247;217,240,211;166,219,160;127,191,123;90,174,97;0,136,55;27,120,55;0,68,27];
typ = 'Diverging';
case 'piyg' % PiYG
rgb = [142,1,82;197,27,125;208,28,139;222,119,174;233,163,201;241,182,218;253,224,239;247,247,247;230,245,208;184,225,134;161,215,106;127,188,65;77,172,38;77,146,33;39,100,25];
typ = 'Diverging';
case 'puor' % PuOr
rgb = [127,59,8;179,88,6;230,97,1;224,130,20;241,163,64;253,184,99;254,224,182;247,247,247;216,218,235;178,171,210;153,142,195;128,115,172;94,60,153;84,39,136;45,0,75];
typ = 'Diverging';
case 'rdbu' % RdBu
rgb = [103,0,31;178,24,43;202,0,32;214,96,77;239,138,98;244,165,130;253,219,199;247,247,247;209,229,240;146,197,222;103,169,207;67,147,195;5,113,176;33,102,172;5,48,97];
typ = 'Diverging';
case 'rdgy' % RdGy
rgb = [103,0,31;178,24,43;202,0,32;214,96,77;239,138,98;244,165,130;253,219,199;255,255,255;224,224,224;186,186,186;153,153,153;135,135,135;64,64,64;77,77,77;26,26,26];
typ = 'Diverging';
case 'rdylbu' % RdYlBu
rgb = [165,0,38;215,48,39;215,25,28;244,109,67;252,141,89;253,174,97;254,224,144;255,255,191;224,243,248;171,217,233;145,191,219;116,173,209;44,123,182;69,117,180;49,54,149];
typ = 'Diverging';
case 'rdylgn' % RdYlGn
rgb = [165,0,38;215,48,39;215,25,28;244,109,67;252,141,89;253,174,97;254,224,139;255,255,191;217,239,139;166,217,106;145,207,96;102,189,99;26,150,65;26,152,80;0,104,55];
typ = 'Diverging';
case 'spectral' % Spectral
rgb = [158,1,66;213,62,79;215,25,28;244,109,67;252,141,89;253,174,97;254,224,139;255,255,191;230,245,152;171,221,164;153,213,148;102,194,165;43,131,186;50,136,189;94,79,162];
typ = 'Diverging';
case 'accent' % Accent
rgb = [127,201,127;190,174,212;253,192,134;255,255,153;56,108,176;240,2,127;191,91,23;102,102,102];
typ = 'Qualitative';
case 'dark2' % Dark2
rgb = [27,158,119;217,95,2;117,112,179;231,41,138;102,166,30;230,171,2;166,118,29;102,102,102];
typ = 'Qualitative';
case 'paired' % Paired
rgb = [166,206,227;31,120,180;178,223,138;51,160,44;251,154,153;227,26,28;253,191,111;255,127,0;202,178,214;106,61,154;255,255,153;177,89,40];
typ = 'Qualitative';
case 'pastel1' % Pastel1
rgb = [251,180,174;179,205,227;204,235,197;222,203,228;254,217,166;255,255,204;229,216,189;253,218,236;242,242,242];
typ = 'Qualitative';
case 'pastel2' % Pastel2
rgb = [179,226,205;253,205,172;203,213,232;244,202,228;230,245,201;255,242,174;241,226,204;204,204,204];
typ = 'Qualitative';
case 'set1' % Set1
rgb = [228,26,28;55,126,184;77,175,74;152,78,163;255,127,0;255,255,51;166,86,40;247,129,191;153,153,153];
typ = 'Qualitative';
case 'set2' % Set2
rgb = [102,194,165;252,141,98;141,160,203;231,138,195;166,216,84;255,217,47;229,196,148;179,179,179];
typ = 'Qualitative';
case 'set3' % Set3
rgb = [141,211,199;255,255,179;190,186,218;251,128,114;128,177,211;253,180,98;179,222,105;252,205,229;217,217,217;188,128,189;204,235,197;255,237,111];
typ = 'Qualitative';
case 'blues' % Blues
rgb = [247,251,255;239,243,255;222,235,247;198,219,239;189,215,231;158,202,225;107,174,214;66,146,198;49,130,189;33,113,181;8,81,156;8,69,148;8,48,107];
typ = 'Sequential';
case 'bugn' % BuGn
rgb = [247,252,253;237,248,251;229,245,249;204,236,230;178,226,226;153,216,201;102,194,164;65,174,118;44,162,95;35,139,69;0,109,44;0,88,36;0,68,27];
typ = 'Sequential';
case 'bupu' % BuPu
rgb = [247,252,253;237,248,251;224,236,244;191,211,230;179,205,227;158,188,218;140,150,198;140,107,177;136,86,167;136,65,157;129,15,124;110,1,107;77,0,75];
typ = 'Sequential';
case 'gnbu' % GnBu
rgb = [247,252,240;240,249,232;224,243,219;204,235,197;186,228,188;168,221,181;123,204,196;78,179,211;67,162,202;43,140,190;8,104,172;8,88,158;8,64,129];
typ = 'Sequential';
case 'greens' % Greens
rgb = [247,252,245;237,248,233;229,245,224;199,233,192;186,228,179;161,217,155;116,196,118;65,171,93;49,163,84;35,139,69;0,109,44;0,90,50;0,68,27];
typ = 'Sequential';
case 'greys' % Greys
rgb = [255,255,255;247,247,247;240,240,240;217,217,217;204,204,204;189,189,189;150,150,150;115,115,115;99,99,99;82,82,82;37,37,37;37,37,37;0,0,0];
typ = 'Sequential';
case 'orrd' % OrRd
rgb = [255,247,236;254,240,217;254,232,200;253,212,158;253,204,138;253,187,132;252,141,89;239,101,72;227,74,51;215,48,31;179,0,0;153,0,0;127,0,0];
typ = 'Sequential';
case 'oranges' % Oranges
rgb = [255,245,235;254,237,222;254,230,206;253,208,162;253,190,133;253,174,107;253,141,60;241,105,19;230,85,13;217,72,1;166,54,3;140,45,4;127,39,4];
typ = 'Sequential';
case 'pubu' % PuBu
rgb = [255,247,251;241,238,246;236,231,242;208,209,230;189,201,225;166,189,219;116,169,207;54,144,192;43,140,190;5,112,176;4,90,141;3,78,123;2,56,88];
typ = 'Sequential';
case 'pubugn' % PuBuGn
rgb = [255,247,251;246,239,247;236,226,240;208,209,230;189,201,225;166,189,219;103,169,207;54,144,192;28,144,153;2,129,138;1,108,89;1,100,80;1,70,54];
typ = 'Sequential';
case 'purd' % PuRd
rgb = [247,244,249;241,238,246;231,225,239;212,185,218;215,181,216;201,148,199;223,101,176;231,41,138;221,28,119;206,18,86;152,0,67;145,0,63;103,0,31];
typ = 'Sequential';
case 'purples' % Purples
rgb = [252,251,253;242,240,247;239,237,245;218,218,235;203,201,226;188,189,220;158,154,200;128,125,186;117,107,177;106,81,163;84,39,143;74,20,134;63,0,125];
typ = 'Sequential';
case 'rdpu' % RdPu
rgb = [255,247,243;254,235,226;253,224,221;252,197,192;251,180,185;250,159,181;247,104,161;221,52,151;197,27,138;174,1,126;122,1,119;122,1,119;73,0,106];
typ = 'Sequential';
case 'reds' % Reds
rgb = [255,245,240;254,229,217;254,224,210;252,187,161;252,174,145;252,146,114;251,106,74;239,59,44;222,45,38;203,24,29;165,15,21;153,0,13;103,0,13];
typ = 'Sequential';
case 'ylgn' % YlGn
rgb = [255,255,229;255,255,204;247,252,185;217,240,163;194,230,153;173,221,142;120,198,121;65,171,93;49,163,84;35,132,67;0,104,55;0,90,50;0,69,41];
typ = 'Sequential';
case 'ylgnbu' % YlGnBu
rgb = [255,255,217;255,255,204;237,248,177;199,233,180;161,218,180;127,205,187;65,182,196;29,145,192;44,127,184;34,94,168;37,52,148;12,44,132;8,29,88];
typ = 'Sequential';
case 'ylorbr' % YlOrBr
rgb = [255,255,229;255,255,212;255,247,188;254,227,145;254,217,142;254,196,79;254,153,41;236,112,20;217,95,14;204,76,2;153,52,4;140,45,4;102,37,6];
typ = 'Sequential';
case 'ylorrd' % YlOrRd
rgb = [255,255,204;255,255,178;255,237,160;254,217,118;254,204,92;254,178,76;253,141,60;252,78,42;240,59,32;227,26,28;189,0,38;177,0,38;128,0,38];
typ = 'Sequential';
otherwise
error('Colorscheme "%s" is not supported. Check the token tables.', tok)
end
num = size(rgb,1);
rgb = rgb./255;
%
end
%----------------------------------------------------------------------END:cbSelect
% Copyright (c) 2015 Stephen Cobeldick
% Copyright (c) 2002 Cynthia Brewer, Mark Harrower, and The Pennsylvania State University.
%
% Licensed under the Apache License, Version 2.0 (the "License");
% you may not use this file except in compliance with the License.
% You may obtain a copy of the License at
%
% http://www.apache.org/licenses/LICENSE-2.0
%
% Unless required by applicable law or agreed to in writing, software
% distributed under the License is distributed on an "AS IS" BASIS,
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
% See the License for the specific language governing permissions and limitations under the License.
%----------------------------------------------------------------------END:license