Use sky colormap in old Matlab version

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Hello everyone, I want to use colormap "sky" released in Matlab , but my Matlab is an older version. Can someone help give me the parameter to generator this colorbar, or website with source code?

采纳的回答

Chunru
Chunru 2023-10-18
Copy the following data:
c = sky(256);
for i=1:height(c)
fprintf("%9.6f %9.6f %9.6f\n", c(i, :))
end
0.900000 0.944700 0.974100 0.896471 0.942748 0.973186 0.892941 0.940796 0.972272 0.889412 0.938845 0.971358 0.885882 0.936893 0.970444 0.882353 0.934941 0.969529 0.878824 0.932989 0.968615 0.875294 0.931038 0.967701 0.871765 0.929086 0.966787 0.868235 0.927134 0.965873 0.864706 0.925182 0.964959 0.861176 0.923231 0.964045 0.857647 0.921279 0.963131 0.854118 0.919327 0.962216 0.850588 0.917375 0.961302 0.847059 0.915424 0.960388 0.843529 0.913472 0.959474 0.840000 0.911520 0.958560 0.836471 0.909568 0.957646 0.832941 0.907616 0.956732 0.829412 0.905665 0.955818 0.825882 0.903713 0.954904 0.822353 0.901761 0.953989 0.818824 0.899809 0.953075 0.815294 0.897858 0.952161 0.811765 0.895906 0.951247 0.808235 0.893954 0.950333 0.804706 0.892002 0.949419 0.801176 0.890051 0.948505 0.797647 0.888099 0.947591 0.794118 0.886147 0.946676 0.790588 0.884195 0.945762 0.787059 0.882244 0.944848 0.783529 0.880292 0.943934 0.780000 0.878340 0.943020 0.776471 0.876388 0.942106 0.772941 0.874436 0.941192 0.769412 0.872485 0.940278 0.765882 0.870533 0.939364 0.762353 0.868581 0.938449 0.758824 0.866629 0.937535 0.755294 0.864678 0.936621 0.751765 0.862726 0.935707 0.748235 0.860774 0.934793 0.744706 0.858822 0.933879 0.741176 0.856871 0.932965 0.737647 0.854919 0.932051 0.734118 0.852967 0.931136 0.730588 0.851015 0.930222 0.727059 0.849064 0.929308 0.723529 0.847112 0.928394 0.720000 0.845160 0.927480 0.716471 0.843208 0.926566 0.712941 0.841256 0.925652 0.709412 0.839305 0.924738 0.705882 0.837353 0.923824 0.702353 0.835401 0.922909 0.698824 0.833449 0.921995 0.695294 0.831498 0.921081 0.691765 0.829546 0.920167 0.688235 0.827594 0.919253 0.684706 0.825642 0.918339 0.681176 0.823691 0.917425 0.677647 0.821739 0.916511 0.674118 0.819787 0.915596 0.670588 0.817835 0.914682 0.667059 0.815884 0.913768 0.663529 0.813932 0.912854 0.660000 0.811980 0.911940 0.656471 0.810028 0.911026 0.652941 0.808076 0.910112 0.649412 0.806125 0.909198 0.645882 0.804173 0.908284 0.642353 0.802221 0.907369 0.638824 0.800269 0.906455 0.635294 0.798318 0.905541 0.631765 0.796366 0.904627 0.628235 0.794414 0.903713 0.624706 0.792462 0.902799 0.621176 0.790511 0.901885 0.617647 0.788559 0.900971 0.614118 0.786607 0.900056 0.610588 0.784655 0.899142 0.607059 0.782704 0.898228 0.603529 0.780752 0.897314 0.600000 0.778800 0.896400 0.596471 0.776848 0.895486 0.592941 0.774896 0.894572 0.589412 0.772945 0.893658 0.585882 0.770993 0.892744 0.582353 0.769041 0.891829 0.578824 0.767089 0.890915 0.575294 0.765138 0.890001 0.571765 0.763186 0.889087 0.568235 0.761234 0.888173 0.564706 0.759282 0.887259 0.561176 0.757331 0.886345 0.557647 0.755379 0.885431 0.554118 0.753427 0.884516 0.550588 0.751475 0.883602 0.547059 0.749524 0.882688 0.543529 0.747572 0.881774 0.540000 0.745620 0.880860 0.536471 0.743668 0.879946 0.532941 0.741716 0.879032 0.529412 0.739765 0.878118 0.525882 0.737813 0.877204 0.522353 0.735861 0.876289 0.518824 0.733909 0.875375 0.515294 0.731958 0.874461 0.511765 0.730006 0.873547 0.508235 0.728054 0.872633 0.504706 0.726102 0.871719 0.501176 0.724151 0.870805 0.497647 0.722199 0.869891 0.494118 0.720247 0.868976 0.490588 0.718295 0.868062 0.487059 0.716344 0.867148 0.483529 0.714392 0.866234 0.480000 0.712440 0.865320 0.476471 0.710488 0.864406 0.472941 0.708536 0.863492 0.469412 0.706585 0.862578 0.465882 0.704633 0.861664 0.462353 0.702681 0.860749 0.458824 0.700729 0.859835 0.455294 0.698778 0.858921 0.451765 0.696826 0.858007 0.448235 0.694874 0.857093 0.444706 0.692922 0.856179 0.441176 0.690971 0.855265 0.437647 0.689019 0.854351 0.434118 0.687067 0.853436 0.430588 0.685115 0.852522 0.427059 0.683164 0.851608 0.423529 0.681212 0.850694 0.420000 0.679260 0.849780 0.416471 0.677308 0.848866 0.412941 0.675356 0.847952 0.409412 0.673405 0.847038 0.405882 0.671453 0.846124 0.402353 0.669501 0.845209 0.398824 0.667549 0.844295 0.395294 0.665598 0.843381 0.391765 0.663646 0.842467 0.388235 0.661694 0.841553 0.384706 0.659742 0.840639 0.381176 0.657791 0.839725 0.377647 0.655839 0.838811 0.374118 0.653887 0.837896 0.370588 0.651935 0.836982 0.367059 0.649984 0.836068 0.363529 0.648032 0.835154 0.360000 0.646080 0.834240 0.356471 0.644128 0.833326 0.352941 0.642176 0.832412 0.349412 0.640225 0.831498 0.345882 0.638273 0.830584 0.342353 0.636321 0.829669 0.338824 0.634369 0.828755 0.335294 0.632418 0.827841 0.331765 0.630466 0.826927 0.328235 0.628514 0.826013 0.324706 0.626562 0.825099 0.321176 0.624611 0.824185 0.317647 0.622659 0.823271 0.314118 0.620707 0.822356 0.310588 0.618755 0.821442 0.307059 0.616804 0.820528 0.303529 0.614852 0.819614 0.300000 0.612900 0.818700 0.296471 0.610948 0.817786 0.292941 0.608996 0.816872 0.289412 0.607045 0.815958 0.285882 0.605093 0.815044 0.282353 0.603141 0.814129 0.278824 0.601189 0.813215 0.275294 0.599238 0.812301 0.271765 0.597286 0.811387 0.268235 0.595334 0.810473 0.264706 0.593382 0.809559 0.261176 0.591431 0.808645 0.257647 0.589479 0.807731 0.254118 0.587527 0.806816 0.250588 0.585575 0.805902 0.247059 0.583624 0.804988 0.243529 0.581672 0.804074 0.240000 0.579720 0.803160 0.236471 0.577768 0.802246 0.232941 0.575816 0.801332 0.229412 0.573865 0.800418 0.225882 0.571913 0.799504 0.222353 0.569961 0.798589 0.218824 0.568009 0.797675 0.215294 0.566058 0.796761 0.211765 0.564106 0.795847 0.208235 0.562154 0.794933 0.204706 0.560202 0.794019 0.201176 0.558251 0.793105 0.197647 0.556299 0.792191 0.194118 0.554347 0.791276 0.190588 0.552395 0.790362 0.187059 0.550444 0.789448 0.183529 0.548492 0.788534 0.180000 0.546540 0.787620 0.176471 0.544588 0.786706 0.172941 0.542636 0.785792 0.169412 0.540685 0.784878 0.165882 0.538733 0.783964 0.162353 0.536781 0.783049 0.158824 0.534829 0.782135 0.155294 0.532878 0.781221 0.151765 0.530926 0.780307 0.148235 0.528974 0.779393 0.144706 0.527022 0.778479 0.141176 0.525071 0.777565 0.137647 0.523119 0.776651 0.134118 0.521167 0.775736 0.130588 0.519215 0.774822 0.127059 0.517264 0.773908 0.123529 0.515312 0.772994 0.120000 0.513360 0.772080 0.116471 0.511408 0.771166 0.112941 0.509456 0.770252 0.109412 0.507505 0.769338 0.105882 0.505553 0.768424 0.102353 0.503601 0.767509 0.098824 0.501649 0.766595 0.095294 0.499698 0.765681 0.091765 0.497746 0.764767 0.088235 0.495794 0.763853 0.084706 0.493842 0.762939 0.081176 0.491891 0.762025 0.077647 0.489939 0.761111 0.074118 0.487987 0.760196 0.070588 0.486035 0.759282 0.067059 0.484084 0.758368 0.063529 0.482132 0.757454 0.060000 0.480180 0.756540 0.056471 0.478228 0.755626 0.052941 0.476276 0.754712 0.049412 0.474325 0.753798 0.045882 0.472373 0.752884 0.042353 0.470421 0.751969 0.038824 0.468469 0.751055 0.035294 0.466518 0.750141 0.031765 0.464566 0.749227 0.028235 0.462614 0.748313 0.024706 0.460662 0.747399 0.021176 0.458711 0.746485 0.017647 0.456759 0.745571 0.014118 0.454807 0.744656 0.010588 0.452855 0.743742 0.007059 0.450904 0.742828 0.003529 0.448952 0.741914 0.000000 0.447000 0.741000
  3 个评论
Walter Roberson
Walter Roberson 2023-10-18
I abstracted the official function and simplified the math slightly to produce my Answer. I suspect that older versions do not have the internal routine used here.

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更多回答(1 个)

Walter Roberson
Walter Roberson 2023-10-18
Generation:
C = [0, 447/1000, 741/1000];
now for any fraction F between .1 and 1,
1-(1-baseColor)*F
subdivide the range .1 to 1 by as many steps as you want in the color map.

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