Re: [Qgis-developer] New color ramp widget: suggestions

[Mathieu Pellerin]

Stephen,

Your feature enhancement request has been heard, and as soon as this PR (
https://github.com/qgis/QGIS/pull/3851) is merged will be reality :).

Math


On Thu, Dec 1, 2016 at 9:52 PM, Howard, Stephen  wrote:

> I tried to request the following feature enhancement some time ago but
> don't know if it ever successfully got entered into the system (the
> suggestions website is very confusing).
>
> for Singleband Pseudocolor:  after classifying a continuous image (say
> NDVI) into numerous classes (10's to 100's), allow the user to select MORE
> than one class at time for color assignment (i.e. Click to select initial
> class, then shift  click to select additional classes, assign
> color to all selected classes).
>
> Thanks for consideration of this request.
>
> On Wed, Nov 30, 2016 at 12:07 PM, Bob and Deb  wrote:
>
>> Why not have a "Recently Used" list?
>>
>> On Nov 30, 2016 2:19 AM, "Nyall Dawson"  wrote:
>>
>>> On 30 November 2016 at 20:07, Paolo Cavallini 
>>> wrote:
>>> > Il 30/11/2016 11:00, Anita Graser ha scritto:
>>> >
>>> >> -1 to this ... most of those cpt city gradients are pretty darn
>>> ugly
>>> >> or unsuitable for mapping in my opinion!
>>> >>
>>> >>
>>> >> Many of the prettier ones (e.g.
>>> >> http://soliton.vm.bytemark.co.uk/pub/cpt-city/wkp/template/t
>>> n/wiki-2.0.png.index.html) are
>>> >> also very difficult to use because we have no way to specify where the
>>> >> border between blue = under sea level and green = above sea level is
>>> in
>>> >> our raster values.
>>> >
>>> > agreed many are unsuitable, but others are really precious: I spend
>>> > hours to design the CORINE one, years ago, and in Europe this is a
>>> must.
>>> > NDVI is also tricky. Perhaps we could divide them in two sections, or
>>> > simply include all the useful ones in the default?
>>> > Anita: agreed some are very difficult to use - ideas for improvement?
>>> > Thanks for the comments, I think we are greatly improving usability
>>> here.
>>> > All the best.
>>>
>>> Ok - I was a bit harsh here. I think the problem is that the good ones
>>> are buried in ones which are totally useless. I'm referring to the
>>> ramps like the different country flags, multiple variations on black
>>> and white stripes, and things like banded "christmas candy" ramps.
>>> Maybe we should curate a list of good ones and only show those at
>>> first, rather then the "all ramps" category.
>>>
>>> Nyall
>>>
>>>
>>> > --
>>> > Paolo Cavallini - www.faunalia.eu
>>> > QGIS & PostGIS courses: http://www.faunalia.eu/training.html
>>> > https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
>>> ___
>>> Qgis-developer mailing list
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>>> List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer
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>>
>>
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>
>
>
> --
> 
> Stephen M. Howard
> USGS, EROS
> 47914   252nd St
> Sioux Falls, SD  57198
> tel:  605 594 6027 <(605)%20594-6027>
> email: smhow...@usgs.gov
>
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Re: [Qgis-developer] New color ramp widget: suggestions

[Howard, Stephen]

I tried to request the following feature enhancement some time ago but
don't know if it ever successfully got entered into the system (the
suggestions website is very confusing).

for Singleband Pseudocolor:  after classifying a continuous image (say
NDVI) into numerous classes (10's to 100's), allow the user to select MORE
than one class at time for color assignment (i.e. Click to select initial
class, then shift  click to select additional classes, assign
color to all selected classes).

Thanks for consideration of this request.

On Wed, Nov 30, 2016 at 12:07 PM, Bob and Deb  wrote:

> Why not have a "Recently Used" list?
>
> On Nov 30, 2016 2:19 AM, "Nyall Dawson"  wrote:
>
>> On 30 November 2016 at 20:07, Paolo Cavallini 
>> wrote:
>> > Il 30/11/2016 11:00, Anita Graser ha scritto:
>> >
>> >> -1 to this ... most of those cpt city gradients are pretty darn
>> ugly
>> >> or unsuitable for mapping in my opinion!
>> >>
>> >>
>> >> Many of the prettier ones (e.g.
>> >> http://soliton.vm.bytemark.co.uk/pub/cpt-city/wkp/template/t
>> n/wiki-2.0.png.index.html) are
>> >> also very difficult to use because we have no way to specify where the
>> >> border between blue = under sea level and green = above sea level is in
>> >> our raster values.
>> >
>> > agreed many are unsuitable, but others are really precious: I spend
>> > hours to design the CORINE one, years ago, and in Europe this is a must.
>> > NDVI is also tricky. Perhaps we could divide them in two sections, or
>> > simply include all the useful ones in the default?
>> > Anita: agreed some are very difficult to use - ideas for improvement?
>> > Thanks for the comments, I think we are greatly improving usability
>> here.
>> > All the best.
>>
>> Ok - I was a bit harsh here. I think the problem is that the good ones
>> are buried in ones which are totally useless. I'm referring to the
>> ramps like the different country flags, multiple variations on black
>> and white stripes, and things like banded "christmas candy" ramps.
>> Maybe we should curate a list of good ones and only show those at
>> first, rather then the "all ramps" category.
>>
>> Nyall
>>
>>
>> > --
>> > Paolo Cavallini - www.faunalia.eu
>> > QGIS & PostGIS courses: http://www.faunalia.eu/training.html
>> > https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
>> ___
>> Qgis-developer mailing list
>> Qgis-developer@lists.osgeo.org
>> List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer
>> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
>
>
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-- 

Stephen M. Howard
USGS, EROS
47914   252nd St
Sioux Falls, SD  57198
tel:  605 594 6027
email: smhow...@usgs.gov
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Re: [Qgis-developer] New color ramp widget: suggestions

[Paolo Cavallini]

Il 01/12/2016 06:22, Mathieu Pellerin ha scritto:
> As well all agreed on need to rename the new color ramp categories, let
> me put forward new names and ordering:
> 
> 
> *Current:*
> Gradient
> Random
> ColorBrewer
> Preset colors
> cpt-city
> 
> *Proposed:*
> Gradient (stays the same)
> Palette (instead of Preset colors)
> Presets: cpt-city (instead of cpt-city)
> Presets: ColorBrewer (instead of ColorBrewer)
> Random (stays the same
> 
> 
> Does that sound good with you guys?

I'll leave the comments to native English speakers.
BTW:
* how about changing the names of renderers? I never found Singleband
etc. names particularly enlightening
* why keeping activated the multiband renderer also for singleband rasters?
* why keeping the Band dropdown whan there is only one band?
* what is the Paletted renderer supposed to do?
Thanks a lot.
-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
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Re: [Qgis-developer] New color ramp widget: suggestions

[Mathieu Pellerin]

As well all agreed on need to rename the new color ramp categories, let me
put forward new names and ordering:


*Current:*
Gradient
Random
ColorBrewer
Preset colors
cpt-city

*Proposed:*
Gradient (stays the same)
Palette (instead of Preset colors)
Presets: cpt-city (instead of cpt-city)
Presets: ColorBrewer (instead of ColorBrewer)
Random (stays the same


Does that sound good with you guys?



On Wed, Nov 30, 2016 at 5:18 PM, Nyall Dawson 
wrote:

> On 30 November 2016 at 20:07, Paolo Cavallini 
> wrote:
> > Il 30/11/2016 11:00, Anita Graser ha scritto:
> >
> >> -1 to this ... most of those cpt city gradients are pretty darn ugly
> >> or unsuitable for mapping in my opinion!
> >>
> >>
> >> Many of the prettier ones (e.g.
> >> http://soliton.vm.bytemark.co.uk/pub/cpt-city/wkp/template/
> tn/wiki-2.0.png.index.html) are
> >> also very difficult to use because we have no way to specify where the
> >> border between blue = under sea level and green = above sea level is in
> >> our raster values.
> >
> > agreed many are unsuitable, but others are really precious: I spend
> > hours to design the CORINE one, years ago, and in Europe this is a must.
> > NDVI is also tricky. Perhaps we could divide them in two sections, or
> > simply include all the useful ones in the default?
> > Anita: agreed some are very difficult to use - ideas for improvement?
> > Thanks for the comments, I think we are greatly improving usability here.
> > All the best.
>
> Ok - I was a bit harsh here. I think the problem is that the good ones
> are buried in ones which are totally useless. I'm referring to the
> ramps like the different country flags, multiple variations on black
> and white stripes, and things like banded "christmas candy" ramps.
> Maybe we should curate a list of good ones and only show those at
> first, rather then the "all ramps" category.
>
> Nyall
>
>
> > --
> > Paolo Cavallini - www.faunalia.eu
> > QGIS & PostGIS courses: http://www.faunalia.eu/training.html
> > https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
> ___
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> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
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Re: [Qgis-developer] New color ramp widget: suggestions

[Bob and Deb]

Why not have a "Recently Used" list?

On Nov 30, 2016 2:19 AM, "Nyall Dawson"  wrote:

> On 30 November 2016 at 20:07, Paolo Cavallini 
> wrote:
> > Il 30/11/2016 11:00, Anita Graser ha scritto:
> >
> >> -1 to this ... most of those cpt city gradients are pretty darn ugly
> >> or unsuitable for mapping in my opinion!
> >>
> >>
> >> Many of the prettier ones (e.g.
> >> http://soliton.vm.bytemark.co.uk/pub/cpt-city/wkp/template/
> tn/wiki-2.0.png.index.html) are
> >> also very difficult to use because we have no way to specify where the
> >> border between blue = under sea level and green = above sea level is in
> >> our raster values.
> >
> > agreed many are unsuitable, but others are really precious: I spend
> > hours to design the CORINE one, years ago, and in Europe this is a must.
> > NDVI is also tricky. Perhaps we could divide them in two sections, or
> > simply include all the useful ones in the default?
> > Anita: agreed some are very difficult to use - ideas for improvement?
> > Thanks for the comments, I think we are greatly improving usability here.
> > All the best.
>
> Ok - I was a bit harsh here. I think the problem is that the good ones
> are buried in ones which are totally useless. I'm referring to the
> ramps like the different country flags, multiple variations on black
> and white stripes, and things like banded "christmas candy" ramps.
> Maybe we should curate a list of good ones and only show those at
> first, rather then the "all ramps" category.
>
> Nyall
>
>
> > --
> > Paolo Cavallini - www.faunalia.eu
> > QGIS & PostGIS courses: http://www.faunalia.eu/training.html
> > https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
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Re: [Qgis-developer] New color ramp widget: suggestions

[Anita Graser]

On Wed, Nov 30, 2016 at 10:51 AM, Nyall Dawson 
wrote:

> On 30 November 2016 at 19:06, Paolo Cavallini 
> wrote:
> > Hi Mathieu,
> > thanks a lot for the cleanup. I just tested it[0], and I would like to
> > add a few notes:
> > * selecting "Edit color ramp" does nothing if a ramp is not selected;
> > the menu should be inactivated then
> > * maybe this is the right time to add some very useful colour ramps (at
> > least one DTM)
> > * IMHO the default for `Create a new color ramp...` should be cpt-city,
> > not gradient
>
> -1 to this ... most of those cpt city gradients are pretty darn ugly
> or unsuitable for mapping in my opinion!
>

​Many of the prettier ones (e.g.
http://soliton.vm.bytemark.co.uk/pub/cpt-city/wkp/template/tn/wiki-2.0.png.index.html)
are
also very difficult to use because we have no way to specify where the
border between blue = under sea level and green = above sea level is in our
raster values.

Best wishes,
Anita





>
> > * this might be the chance to rename cpt-city: it would be bad to miss
> > the credits to the original website[1], but the name is really arcane
> > for most users
> > All the best.
>
> +1
>
> Nyall
>
> >
> > [0]https://github.com/qgis/QGIS/pull/3815
> > [1]http://soliton.vm.bytemark.co.uk/pub/cpt-city/
> >
> > --
> > Paolo Cavallini - www.faunalia.eu
> > QGIS & PostGIS courses: http://www.faunalia.eu/training.html
> > https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
> >
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Re: [Qgis-developer] New color ramp widget: suggestions

[Nyall Dawson]

On 30 November 2016 at 19:06, Paolo Cavallini  wrote:
> Hi Mathieu,
> thanks a lot for the cleanup. I just tested it[0], and I would like to
> add a few notes:
> * selecting "Edit color ramp" does nothing if a ramp is not selected;
> the menu should be inactivated then
> * maybe this is the right time to add some very useful colour ramps (at
> least one DTM)
> * IMHO the default for `Create a new color ramp...` should be cpt-city,
> not gradient

-1 to this ... most of those cpt city gradients are pretty darn ugly
or unsuitable for mapping in my opinion!

> * this might be the chance to rename cpt-city: it would be bad to miss
> the credits to the original website[1], but the name is really arcane
> for most users
> All the best.

+1

Nyall

>
> [0]https://github.com/qgis/QGIS/pull/3815
> [1]http://soliton.vm.bytemark.co.uk/pub/cpt-city/
>
> --
> Paolo Cavallini - www.faunalia.eu
> QGIS & PostGIS courses: http://www.faunalia.eu/training.html
> https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
>
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Re: [Qgis-developer] New color ramp widget: suggestions

[Paolo Cavallini]

Hi Mathieu,

Il 30/11/2016 10:18, Mathieu Pellerin ha scritto:

> * Good point on the "edit color ramp..." menu shortcut, I'll fix that

great, thanks

> * >1 week ago, I revamped the default symbols, we could also revamp the
> saved color ramps (and highlight a few excellent ones via favorites)

IMHO a DTM is badly missing. please have a look also to the GRASS ramps
embedded in cpt-city - some of them are really useful, e.g. ndvi,
corine, aspect.

> * I'm a definite -1 for changing default type from gradient to cpt-city,
> the color gradient editor dialog is much, much better the work with (by
> default) than the cpt-city preset picker dialog

agreed it's better, even too good ;)
my point is that with gradient users tend to create overcomplicated
palettes, that are not appropriate for sound cartography; that's why I
suggested to put them one step away from users. but I accept your choice.

> * +1 to rename the cpt-city ramp type to something that'll be understood
> by more than a few dozen individuals on earth ;-P

good; perhaps we should put credits somewhere else.

Thanks again.
-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
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Re: [Qgis-developer] New color ramp widget: suggestions

[Mathieu Pellerin]

Paola,

Thanks for testing. To answer to your notes:
* Good point on the "edit color ramp..." menu shortcut, I'll fix that
* >1 week ago, I revamped the default symbols, we could also revamp the
saved color ramps (and highlight a few excellent ones via favorites)
* I'm a definite -1 for changing default type from gradient to cpt-city,
the color gradient editor dialog is much, much better the work with (by
default) than the cpt-city preset picker dialog
* +1 to rename the cpt-city ramp type to something that'll be understood by
more than a few dozen individuals on earth ;-P


On Wed, Nov 30, 2016 at 4:06 PM, Paolo Cavallini 
wrote:

> Hi Mathieu,
> thanks a lot for the cleanup. I just tested it[0], and I would like to
> add a few notes:
> * selecting "Edit color ramp" does nothing if a ramp is not selected;
> the menu should be inactivated then
> * maybe this is the right time to add some very useful colour ramps (at
> least one DTM)
> * IMHO the default for `Create a new color ramp...` should be cpt-city,
> not gradient
> * this might be the chance to rename cpt-city: it would be bad to miss
> the credits to the original website[1], but the name is really arcane
> for most users
> All the best.
>
> [0]https://github.com/qgis/QGIS/pull/3815
> [1]http://soliton.vm.bytemark.co.uk/pub/cpt-city/
>
> --
> Paolo Cavallini - www.faunalia.eu
> QGIS & PostGIS courses: http://www.faunalia.eu/training.html
> https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
>
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[Qgis-developer] New color ramp widget: suggestions

[Paolo Cavallini]

Hi Mathieu,
thanks a lot for the cleanup. I just tested it[0], and I would like to
add a few notes:
* selecting "Edit color ramp" does nothing if a ramp is not selected;
the menu should be inactivated then
* maybe this is the right time to add some very useful colour ramps (at
least one DTM)
* IMHO the default for `Create a new color ramp...` should be cpt-city,
not gradient
* this might be the chance to rename cpt-city: it would be bad to miss
the credits to the original website[1], but the name is really arcane
for most users
All the best.

[0]https://github.com/qgis/QGIS/pull/3815
[1]http://soliton.vm.bytemark.co.uk/pub/cpt-city/

-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
https://www.google.com/trends/explore?date=all=IT=qgis,arcgis

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