[Paraview-developers] [EXTERNAL] [Paraview] color scale editor bugs, and missing luts

Tue May 28 20:46:06 EDT 2013

Burlen,

·         I just took a quick look - including pv 3.14.0, 3.98.0, 3.98.1 and 4.0.0-rc, and could not find all of the lookup tables below.  The one I really looked for was Volcano (randomly chosen from the list).  Um ... are you sure they were ever there?

·         As for me, and I suspect most of my users, there are so many lookup tables that they are overwhelming.  I once had ParaView described by a power-user as "cockpit syndrome", and in many ways, the discussion to simplify the GUI in 4.0 was driven by this statement.  I think there is value having numerous LUT's, but not at the cost of overwhelming options and confusion.  Having numerous pages of LUTs is not useful, IMHO.

·         I did reorder the LUT back a version or so ago, trying to move the old, standby, commonly used LUT's to the top (they were at the bottom of pages of LUTs).  Also, someone did convert the LUT code from .cpp to XML.  Either event could have caused losses that I don't know about.

·         Since it is trivial to find numerous duplicates even in the current list, I assume these are just machine generated (or copied as a block), and not created due to any need by users.  Thus, are they all important?  If they are, could we at least sort them somehow, alphabetically, or by color, or, saturation, or something?  Just looking at the red/ black body LUTs, they are spread all throughout the table, thus making comparisons impossible.

·         Finally, if we do have pages of LUTs, I would recommend that we stick to the standard 10 or 20 shown by default, unless a user selects an Advanced button.  Then, the sky is the limit.

·         I would be willing to reorder the LUT to group like tables, and delete redundant ones, if we want.

Moving this discussion to the developers list, trying to keep the spam down.  Hope that was the right thing to do...

Just my $0.02.

Alan

From: Burlen Loring [mailto:bloring at lbl.gov]
Sent: Tuesday, May 28, 2013 4:40 PM
To: Scott, W Alan
Cc: paraview at paraview.org
Subject: Re: [EXTERNAL] [Paraview] color scale editor bugs, and missing luts

Hi Alan,

I was hoping that the person who deleted them would have the specifics ;-). I'm pasting a screen shot of the original list. from that list:

some of the ones that I liked:
Eos_*, Hue_Sat_*, waves,

light to dark luts:
many/most/all have been removed, those are very useful, and non-trivial to recover in some cases. For example take BuGn in pv git master, how would you flip that?

others that look appealing to me:
Blue-Red, Rainbow-Black, Rainbow-White, Purple-Red-Stripes, Std_Gamma-II

aside from duplicates, is there a downside to keeping all of them? It's really hard to say which ones are going to work well until you're actually interacting with the data...

[Luts.png          (496×2464)]

On 05/28/2013 03:08 PM, Scott, W Alan wrote:
Burlen,
I see the very nice simulations that you have done below, but I don't see any names of LUT's that were deleted. Could you tell me a few of the LUT's that were deleted?

Thanks,

Alan

From: paraview-bounces at paraview.org<mailto:paraview-bounces at paraview.org> [mailto:paraview-bounces at paraview.org] On Behalf Of Burlen Loring
Sent: Tuesday, May 28, 2013 2:47 PM
To: paraview at paraview.org<mailto:paraview at paraview.org>
Subject: [EXTERNAL] [Paraview] color scale editor bugs, and missing luts

Hi All,

a few color scale editor bugs to report, these were present in 3.98 as well.
0014094<http://paraview.org/Bug/view.php?id=14094>
[Edit]<http://paraview.org/Bug/bug_update_page.php?bug_id=14094>[cid:image003.gif at 01CE5BCE.47C5A990]

color scale editor -- lut widget is not updated after lut is changed
(No Category) - 2013-05-28 16:26

0014093<http://paraview.org/Bug/view.php?id=14093>
[Edit]<http://paraview.org/Bug/bug_update_page.php?bug_id=14093>[cid:image003.gif at 01CE5BCE.47C5A990]

color scale editor (legend tab)-- Ignores Render View Immediately
(No Category) - 2013-05-28 16:23

0014091<http://paraview.org/Bug/view.php?id=14091>
[Edit]<http://paraview.org/Bug/bug_update_page.php?bug_id=14091>[cid:image003.gif at 01CE5BCE.47C5A990]

color scale editor -- Ignores Render View immediately
(No Category) - 2013-05-28 16:07

0014092<http://paraview.org/Bug/view.php?id=14092>
[Edit]<http://paraview.org/Bug/bug_update_page.php?bug_id=14092>[cid:image003.gif at 01CE5BCE.47C5A990]

color scale editor -- selecting lut forces invalid range
(No Category) - 2013-05-28 16:05

I also noticed that many of the new lut's that were present (3.14?) were removed. I want to complain about it since a number of useful luts were removed (it was not just the duplicates). conspicuously missing are light to dark luts. For eg luts used to make the following images are missing, these illustrate that the removed luts are useful ones. Those aren't the only useful luts that were removed. Any chance the non-duplicated luts could be reinstated? Is it because the LUT widget doesn't handle dense series of colors gracefully? If so perhaps it would be worth while to fix the color scale editor so it can handle dense luts?

http://www.hpcvis.com/vis/images/kh-2d-new/agu-movie/B-Ue.0320.png,
http://www.hpcvis.com/vis/images/kh-2d-new/paper-figs/bin-287-supl.png
http://www.hpcvis.com/vis/images/25kn/25kn-lic-and-streams/stream-and-lic-3-just-lic-lggrain.png

Burlen

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