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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
 =?utf-8?Q?=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Color gradients lib
Date: Tue, 08 Feb 2011 14:16:13 +0100
Organization: Ada @ Home
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Date: 2011-02-08T14:16:13+01:00
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Hi Alex,

Any graphic capabilities requires an output =E2=80=9Cdevice=E2=80=9D, ei=
ther memory  =

bitmap, screen, image file, and the latter may be bitmap, PNG, JPEG. I  =

feel you miss to provide a context here. Are you seeking for a library t=
o  =

generate shapes filled with gradient to which kind of output ? This is  =

important to know.

Do not know anything about the context, however an idea : is SVG a valid=
  =

option for you ? For graphs, pies, and other formal representations and =
 =

plotted images, SVG is rather good (if no dynamic features is required),=
  =

and it has gradient capabilities:
http://www.w3.org/TR/SVG/pservers.html

Otherwise, please tell more about the context and any relevant technical=
  =

details.


Le Tue, 08 Feb 2011 11:58:00 +0100, Alex R. Mosteo  =

<alejandro@mosteo.invalid> a =C3=A9crit:

> Hello,
>
> I need to plot some data (2D maps) and I have everything in my drawing=

> library except some readily usable gradients. I was wondering if some =
Ada
> library out there has this before making my custom one.
>
> I would need one to represent bad/good ranges (e.g. the default gradie=
nt
> blue-cold to red-hot in matlab), and another to show a density of samp=
les
> (perhaps simple shades of gray).
>
> The second one is straightforward, but the first one seems like someth=
ing
> pretty standard, so I wouldn't like to create one that is similar but =
not
> the same.
>
> (e.g. the first example in
> http://www.mathworks.com/help/techdoc/visualize/f0-18164.html#f0-5919 =
)
>
> Thanks for any suggestions.


-- =

Si les chats miaulent et font autant de vocalises bizarres, c=E2=80=99es=
t pas pour  =

les chiens.

=E2=80=9CI am fluent in ASCII=E2=80=9D [Warren 2010]