Re: [visad] Fw: Specific Color Mapping

• To: Devanshee Prajapati <devanshee@xxxxxxxxxxxxxx>
• Subject: Re: [visad] Fw: Specific Color Mapping
• From: Curtis Rueden <ctrueden@xxxxxxxx>
• Date: Tue, 15 Apr 2014 14:29:21 -0500

Hi Devanshee,

> I want to map "red" color to (40C to 50C). "Orange"  to (30C to 40C).

You can use a stepwise color table.

Take a look at Test33 in the VisAD examples:
https://github.com/visad/visad/blob/master/examples/src/Test33.java

1) Make a ScalarMap to RGB.
2) Add the map to the display via the addMap method.
3) Get the BaseColorControl by calling getControl() on that ScalarMap.
4) Create a stepwise RGB color table dimensioned float[3][256].
5) Assign the color table via the BaseColorControl's setTable method.

Regards,
Curtis


On Tue, Apr 15, 2014 at 1:24 PM, Devanshee Prajapati <
devanshee@xxxxxxxxxxxxxx> wrote:

>    On Tuesday, April 15, 2014 10:16 PM, Devanshee Prajapati <
> devanshee@xxxxxxxxxxxxxx> wrote:
>   Hi everyone,
>
> I want to know that whether is it possible to map specific color to
> specific class of range values??
>
> For Example: My range is Temperature.
>    And I want to map "red" color to (40C to 50C).
>            "Orange"  to (30C to 40C ).
>  And then the mapping should be modified by user.
>
> Currently I am using static mapping, which is provided in visAD Tutorials
> by Ugo Taddei.
> In which mapping occurs automatically.
>
> But I think there must be a way to be more specific by giving range like
> this.
>
> ThankYou.
>
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• References:
  • [visad] Specific Color Mapping
    • From: Devanshee Prajapati
  • [visad] Fw: Specific Color Mapping
    • From: Devanshee Prajapati