Mercurial > octave
view scripts/image/viridis.m @ 21220:d78e45987d6a
rename octave::build_env namespace from octave::config
* build-env-features.sh: Rename from ocgt-conf-features.sh.
Update for new names.
* build-env.h: Rename from oct-conf.h. Also declare features function.
* build-env.in.cc: Rename from oct-conf.in.cc.
* oct-conf-features.h: Delete.
* libinterp/module.mk: Update.
* toplev.cc, __init_gnuplot__.cc, octave.cc: Update for new names.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Sun, 07 Feb 2016 14:56:17 -0500 |
parents | 516bb87ea72e |
children | 1fc6ae99c792 |
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## Copyright (C) 2015 Eric Firing ## Copyright (C) 2015 Nathaniel J. Smith ## Copyright (C) 2015 Stefan van der Walt ## Copyright (C) 2015 Carlo de Falco ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {} {@var{map} =} viridis () ## @deftypefnx {} {@var{map} =} viridis (@var{n}) ## Create color colormap. The colors begin with dark purplish-blue and ## blue, range through green and end with yellow. ## ## The argument @var{n} must be a scalar. ## If unspecified, the length of the current colormap, or 64, is used. ## @seealso{colormap} ## @end deftypefn ## Author: Carlo de Falco ## PKG_ADD: colormap ("register", "viridis"); ## PKG_DEL: colormap ("unregister", "viridis"); ## This is a port of the the default matplotlib colormap "viridis" ## by Eric Firing to Octave, the original file is distributed under CC0: ## http://creativecommons.org/publicdomain/zero/1.0 function c = viridis (n = rows (colormap ())) if (nargin > 1) print_usage (); elseif (! isscalar (n)) error ("viridis: N must be a scalar"); endif viridi = [0.26700401 0.00487433 0.32941519 0.26851048 0.00960483 0.33542652 0.26994384 0.01462494 0.34137895 0.27130489 0.01994186 0.34726862 0.27259384 0.02556309 0.35309303 0.27380934 0.03149748 0.35885256 0.27495242 0.03775181 0.36454323 0.27602238 0.04416723 0.37016418 0.2770184 0.05034437 0.37571452 0.27794143 0.05632444 0.38119074 0.27879067 0.06214536 0.38659204 0.2795655 0.06783587 0.39191723 0.28026658 0.07341724 0.39716349 0.28089358 0.07890703 0.40232944 0.28144581 0.0843197 0.40741404 0.28192358 0.08966622 0.41241521 0.28232739 0.09495545 0.41733086 0.28265633 0.10019576 0.42216032 0.28291049 0.10539345 0.42690202 0.28309095 0.11055307 0.43155375 0.28319704 0.11567966 0.43611482 0.28322882 0.12077701 0.44058404 0.28318684 0.12584799 0.44496 0.283072 0.13089477 0.44924127 0.28288389 0.13592005 0.45342734 0.28262297 0.14092556 0.45751726 0.28229037 0.14591233 0.46150995 0.28188676 0.15088147 0.46540474 0.28141228 0.15583425 0.46920128 0.28086773 0.16077132 0.47289909 0.28025468 0.16569272 0.47649762 0.27957399 0.17059884 0.47999675 0.27882618 0.1754902 0.48339654 0.27801236 0.18036684 0.48669702 0.27713437 0.18522836 0.48989831 0.27619376 0.19007447 0.49300074 0.27519116 0.1949054 0.49600488 0.27412802 0.19972086 0.49891131 0.27300596 0.20452049 0.50172076 0.27182812 0.20930306 0.50443413 0.27059473 0.21406899 0.50705243 0.26930756 0.21881782 0.50957678 0.26796846 0.22354911 0.5120084 0.26657984 0.2282621 0.5143487 0.2651445 0.23295593 0.5165993 0.2636632 0.23763078 0.51876163 0.26213801 0.24228619 0.52083736 0.26057103 0.2469217 0.52282822 0.25896451 0.25153685 0.52473609 0.25732244 0.2561304 0.52656332 0.25564519 0.26070284 0.52831152 0.25393498 0.26525384 0.52998273 0.25219404 0.26978306 0.53157905 0.25042462 0.27429024 0.53310261 0.24862899 0.27877509 0.53455561 0.2468114 0.28323662 0.53594093 0.24497208 0.28767547 0.53726018 0.24311324 0.29209154 0.53851561 0.24123708 0.29648471 0.53970946 0.23934575 0.30085494 0.54084398 0.23744138 0.30520222 0.5419214 0.23552606 0.30952657 0.54294396 0.23360277 0.31382773 0.54391424 0.2316735 0.3181058 0.54483444 0.22973926 0.32236127 0.54570633 0.22780192 0.32659432 0.546532 0.2258633 0.33080515 0.54731353 0.22392515 0.334994 0.54805291 0.22198915 0.33916114 0.54875211 0.22005691 0.34330688 0.54941304 0.21812995 0.34743154 0.55003755 0.21620971 0.35153548 0.55062743 0.21429757 0.35561907 0.5511844 0.21239477 0.35968273 0.55171011 0.2105031 0.36372671 0.55220646 0.20862342 0.36775151 0.55267486 0.20675628 0.37175775 0.55311653 0.20490257 0.37574589 0.55353282 0.20306309 0.37971644 0.55392505 0.20123854 0.38366989 0.55429441 0.1994295 0.38760678 0.55464205 0.1976365 0.39152762 0.55496905 0.19585993 0.39543297 0.55527637 0.19410009 0.39932336 0.55556494 0.19235719 0.40319934 0.55583559 0.19063135 0.40706148 0.55608907 0.18892259 0.41091033 0.55632606 0.18723083 0.41474645 0.55654717 0.18555593 0.4185704 0.55675292 0.18389763 0.42238275 0.55694377 0.18225561 0.42618405 0.5571201 0.18062949 0.42997486 0.55728221 0.17901879 0.43375572 0.55743035 0.17742298 0.4375272 0.55756466 0.17584148 0.44128981 0.55768526 0.17427363 0.4450441 0.55779216 0.17271876 0.4487906 0.55788532 0.17117615 0.4525298 0.55796464 0.16964573 0.45626209 0.55803034 0.16812641 0.45998802 0.55808199 0.1666171 0.46370813 0.55811913 0.16511703 0.4674229 0.55814141 0.16362543 0.47113278 0.55814842 0.16214155 0.47483821 0.55813967 0.16066467 0.47853961 0.55811466 0.15919413 0.4822374 0.5580728 0.15772933 0.48593197 0.55801347 0.15626973 0.4896237 0.557936 0.15481488 0.49331293 0.55783967 0.15336445 0.49700003 0.55772371 0.1519182 0.50068529 0.55758733 0.15047605 0.50436904 0.55742968 0.14903918 0.50805136 0.5572505 0.14760731 0.51173263 0.55704861 0.14618026 0.51541316 0.55682271 0.14475863 0.51909319 0.55657181 0.14334327 0.52277292 0.55629491 0.14193527 0.52645254 0.55599097 0.14053599 0.53013219 0.55565893 0.13914708 0.53381201 0.55529773 0.13777048 0.53749213 0.55490625 0.1364085 0.54117264 0.55448339 0.13506561 0.54485335 0.55402906 0.13374299 0.54853458 0.55354108 0.13244401 0.55221637 0.55301828 0.13117249 0.55589872 0.55245948 0.1299327 0.55958162 0.55186354 0.12872938 0.56326503 0.55122927 0.12756771 0.56694891 0.55055551 0.12645338 0.57063316 0.5498411 0.12539383 0.57431754 0.54908564 0.12439474 0.57800205 0.5482874 0.12346281 0.58168661 0.54744498 0.12260562 0.58537105 0.54655722 0.12183122 0.58905521 0.54562298 0.12114807 0.59273889 0.54464114 0.12056501 0.59642187 0.54361058 0.12009154 0.60010387 0.54253043 0.11973756 0.60378459 0.54139999 0.11951163 0.60746388 0.54021751 0.11942341 0.61114146 0.53898192 0.11948255 0.61481702 0.53769219 0.11969858 0.61849025 0.53634733 0.12008079 0.62216081 0.53494633 0.12063824 0.62582833 0.53348834 0.12137972 0.62949242 0.53197275 0.12231244 0.63315277 0.53039808 0.12344358 0.63680899 0.52876343 0.12477953 0.64046069 0.52706792 0.12632581 0.64410744 0.52531069 0.12808703 0.64774881 0.52349092 0.13006688 0.65138436 0.52160791 0.13226797 0.65501363 0.51966086 0.13469183 0.65863619 0.5176488 0.13733921 0.66225157 0.51557101 0.14020991 0.66585927 0.5134268 0.14330291 0.66945881 0.51121549 0.1466164 0.67304968 0.50893644 0.15014782 0.67663139 0.5065889 0.15389405 0.68020343 0.50417217 0.15785146 0.68376525 0.50168574 0.16201598 0.68731632 0.49912906 0.1663832 0.69085611 0.49650163 0.1709484 0.69438405 0.49380294 0.17570671 0.6978996 0.49103252 0.18065314 0.70140222 0.48818938 0.18578266 0.70489133 0.48527326 0.19109018 0.70836635 0.48228395 0.19657063 0.71182668 0.47922108 0.20221902 0.71527175 0.47608431 0.20803045 0.71870095 0.4728733 0.21400015 0.72211371 0.46958774 0.22012381 0.72550945 0.46622638 0.2263969 0.72888753 0.46278934 0.23281498 0.73224735 0.45927675 0.2393739 0.73558828 0.45568838 0.24606968 0.73890972 0.45202405 0.25289851 0.74221104 0.44828355 0.25985676 0.74549162 0.44446673 0.26694127 0.74875084 0.44057284 0.27414922 0.75198807 0.4366009 0.28147681 0.75520266 0.43255207 0.28892102 0.75839399 0.42842626 0.29647899 0.76156142 0.42422341 0.30414796 0.76470433 0.41994346 0.31192534 0.76782207 0.41558638 0.3198086 0.77091403 0.41115215 0.3277958 0.77397953 0.40664011 0.33588539 0.7770179 0.40204917 0.34407411 0.78002855 0.39738103 0.35235985 0.78301086 0.39263579 0.36074053 0.78596419 0.38781353 0.3692142 0.78888793 0.38291438 0.37777892 0.79178146 0.3779385 0.38643282 0.79464415 0.37288606 0.39517408 0.79747541 0.36775726 0.40400101 0.80027461 0.36255223 0.4129135 0.80304099 0.35726893 0.42190813 0.80577412 0.35191009 0.43098317 0.80847343 0.34647607 0.44013691 0.81113836 0.3409673 0.44936763 0.81376835 0.33538426 0.45867362 0.81636288 0.32972749 0.46805314 0.81892143 0.32399761 0.47750446 0.82144351 0.31819529 0.4870258 0.82392862 0.31232133 0.49661536 0.82637633 0.30637661 0.5062713 0.82878621 0.30036211 0.51599182 0.83115784 0.29427888 0.52577622 0.83349064 0.2881265 0.5356211 0.83578452 0.28190832 0.5455244 0.83803918 0.27562602 0.55548397 0.84025437 0.26928147 0.5654976 0.8424299 0.26287683 0.57556297 0.84456561 0.25641457 0.58567772 0.84666139 0.24989748 0.59583934 0.84871722 0.24332878 0.60604528 0.8507331 0.23671214 0.61629283 0.85270912 0.23005179 0.62657923 0.85464543 0.22335258 0.63690157 0.85654226 0.21662012 0.64725685 0.85839991 0.20986086 0.65764197 0.86021878 0.20308229 0.66805369 0.86199932 0.19629307 0.67848868 0.86374211 0.18950326 0.68894351 0.86544779 0.18272455 0.69941463 0.86711711 0.17597055 0.70989842 0.86875092 0.16925712 0.72039115 0.87035015 0.16260273 0.73088902 0.87191584 0.15602894 0.74138803 0.87344918 0.14956101 0.75188414 0.87495143 0.14322828 0.76237342 0.87642392 0.13706449 0.77285183 0.87786808 0.13110864 0.78331535 0.87928545 0.12540538 0.79375994 0.88067763 0.12000532 0.80418159 0.88204632 0.11496505 0.81457634 0.88339329 0.11034678 0.82494028 0.88472036 0.10621724 0.83526959 0.88602943 0.1026459 0.84556056 0.88732243 0.09970219 0.8558096 0.88860134 0.09745186 0.86601325 0.88986815 0.09595277 0.87616824 0.89112487 0.09525046 0.88627146 0.89237353 0.09537439 0.89632002 0.89361614 0.09633538 0.90631121 0.89485467 0.09812496 0.91624212 0.89609127 0.1007168 0.92610579 0.89732977 0.10407067 0.93590444 0.8985704 0.10813094 0.94563626 0.899815 0.11283773 0.95529972 0.90106534 0.11812832 0.96489353 0.90232311 0.12394051 0.97441665 0.90358991 0.13021494 0.98386829 0.90486726 0.13689671 0.99324789 0.90615657 0.1439362]; p = rows (viridi); c = interp1 (1:p, viridi, linspace (1, p, n), 'linear'); endfunction ## A better demo of this colormap would be to plot the CIECAM02 values. %!demo %! ## Show the 'viridis' colormap profile and as an image %! cmap = viridis (256); %! subplot (2, 1, 1); %! rgbplot (cmap, "composite"); %! subplot (2, 1, 2); %! rgbplot (cmap);