Mercurial > octave-nkf
view scripts/image/viridis.m @ 20645:395140e53656
Fix regression in svg output and simplify viewport handling (bug #44765)
* gl2ps-renderer.cc (glps-renderer::draw): remove check for GL2PS_NO_FEEDBACK, it it always true after EndViewport
* gl2ps-renderer.h (glps-renderer::draw_axes): call gl2psBegin(End)Viewport for every axes and check for GL2PS_NO_FEEDBACK after each axes.
* gl2ps-renderer.h (glps-renderer::draw_axes):remove unnecessary "naxes" attribute
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
---|---|
date | Mon, 12 Oct 2015 20:49:04 +0200 |
parents | 2e7a09136516 |
children |
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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 {Function File} {@var{map} =} viridis () ## @deftypefnx {Function File} {@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 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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 %!demo %! ## Show the 'viridis' colormap as an image %! image (1:256, linspace (0, 1, 256), repmat ((1:256)', 1, 256)); %! axis ([1, 256, 0, 1], "ticy", "xy"); %! colormap (viridis (256));