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<p class="MsoNormal">Just to reiterate here (a thread I have presented to a more limited, but very vocal audience), we NEVER will be able to remove Rainbow. There are cases it is not just the best colormap, but the only color map that fills requirements. If
a customer is trying to compare screenshots or movies against historical runs, and these historical runs were Rainbow, Rainbow is the best color map. Further, if Rainbow is contractually required, we will lose users if we don’t present Rainbow as an option.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But, having said that, let’s make it easy to do the right thing, and harder to do stupid stuff (such as use Rainbow as default).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here is a good writeup on the four matplotlib colormaps: <a href="https://bids.github.io/colormap/">
https://bids.github.io/colormap/</a>. Note that they are both perceptually uniform (not necessarily with regards to brightness), and are also very good for color blind folks.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here’s another good writeup on colormaps (from the good folks at matplotlib): https://matplotlib.org/users/colormaps.html<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Alan<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Aron Helser [mailto:aron.helser@kitware.com] <br>
<b>Sent:</b> Tuesday, December 19, 2017 9:07 AM<br>
<b>To:</b> Scott, W Alan <wascott@sandia.gov><br>
<b>Cc:</b> paraview-developers@paraview.org<br>
<b>Subject:</b> [EXTERNAL] Re: [Paraview-developers] Color legend presets<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Sounds like a great idea to me - the long colormap list gives no guidance to users.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">I agree that rainbow and other perceptually troublesome colormaps should be advanced (or removed).<o:p></o:p></p>
</div>
<p class="MsoNormal">IIRC these are designed to have uniform or linear perceptual brightness? What about the others?<o:p></o:p></p>
<ul type="circle">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l0 level1 lfo1">
Viridis<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l0 level1 lfo1">
Plasma<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l0 level1 lfo1">
Inferno<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l0 level1 lfo1">
Magma<o:p></o:p></li></ul>
<p>I think we'd have to decide what to do with categorical colormaps as well.<o:p></o:p></p>
<p>Regards,<o:p></o:p></p>
<p>Aron<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, Dec 18, 2017 at 6:37 PM, Scott, W Alan <<a href="mailto:wascott@sandia.gov" target="_blank">wascott@sandia.gov</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I would like to propose that we reorder the color legends presets as follows:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level1 lfo2">
Add an advanced icon. Default will get rid of everything other than the first page. Increase the size of the Choose Preset to show all of the default list.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level1 lfo2">
In Advanced, add sub menus. These should be Common, Rainbow variant, double ended, dark to light, misc., etc.
<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level1 lfo2">
Default will look like this. Note that for the most part I didn’t invert any maps, since there is already a button to do this.
<o:p></o:p></li></ul>
<ul type="disc">
<ul type="circle">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Cool to Warm<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Cool to Warm (Extended)<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Viridis<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Plasma<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Inferno<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Magma<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Black-Body Radiation<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
X-Ray<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Gray Scale<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Cold and Hot<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Black, blue and white<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Black, orange and white<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
2hot<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Rainbow Desaturated<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
erdc_rainbow_bright<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
erdc_rainbow_dark<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
Jet<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0in;mso-list:l1 level2 lfo2">
<o:p></o:p></li></ul>
</ul>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Get rid of Rainbow Blended White, Gray and Black. These were things I tried, and didn’t work, with our lighting model.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Get rid of the second erdc_rainbow_bright/dark<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Get rid of coolwarm. It is Cool to Warm, which we already have.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Notice that I pushed normal Rainbow to be advanced only.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thoughts?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">--------------------------------------------------------<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">W. Alan Scott<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">ParaView Support Manager<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">SAIC<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Sandia National Laboratories, MS 0807<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Org 9326 - Building 880 A1-K<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="tel:(505)%20284-0932" target="_blank">(505) 284-0932</a> FAX
<a href="tel:(505)%20284-5619" target="_blank">(505) 284-5619</a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The most exciting phrase to hear in science
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">is not "Eureka!" but "That's funny..." -- Isaac Asimov<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">---------------------------------------------------------<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
</div>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
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</blockquote>
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<p class="MsoNormal"><o:p> </o:p></p>
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