Abyss color

Currently the defauly abyss color is 0,0,0,0 (RGBA). What would have
to be done to allow users to specify their own abyss color?

Thanks,
Eric

On 08/01/2009 01:36 AM, Eric Daoust wrote:
> Currently the defauly abyss color is 0,0,0,0 (RGBA). What would have
> to be done to allow users to specify their own abyss color?

Since the abyss logic is in GeglBuffer (gegl-buffer-access.c), I would
add the abyss color as a property to the GeglBuffer.

/ Martin

Thanks for the reply.

How would I pass this information from my XML test file to gegl-buffer-access.c?

Example XML code (image rotation test using my upsharpfast sampler):

<?xml version='1.0' encoding='UTF-8'?>
<gegl>
<node operation='gegl:over'>
<node operation='gegl:rotate'>
<params>
<param name='origin-x'>0.000000</param>
<param name='origin-y'>0.000000</param>
<param name='degrees'>7.000000</param>
<param name='filter'>upsharpfast</param>
</params>
</node>
<node operation='gegl:load' id='clone0'>
<params>
<param name="path">data/roemerlogo_large.png</param>
</params>
</node>
</node>
</gegl>


Thanks,
Eric



On Sat, Aug 1, 2009 at 3:28 AM, Martin Nordholts<enselic@gmail.com> wrote:
> On 08/01/2009 01:36 AM, Eric Daoust wrote:
>>
>> Currently the defauly abyss color is 0,0,0,0 (RGBA).  What would have
>> to be done to allow users to specify their own abyss color?
>
> Since the abyss logic is in GeglBuffer (gegl-buffer-access.c), I would add
> the abyss color as a property to the GeglBuffer.
>
>  / Martin
>

On 08/07/2009 07:47 PM, Eric Daoust wrote:
> Thanks for the reply.
>
> How would I pass this information from my XML test file to gegl-buffer-access.c?
>
> Example XML code (image rotation test using my upsharpfast sampler):
>
> <?xml version='1.0' encoding='UTF-8'?>
> <gegl>
> <node operation='gegl:over'>
> <node operation='gegl:rotate'>
> <params>
> <param name='origin-x'>0.000000</param>
> <param name='origin-y'>0.000000</param>
> <param name='degrees'>7.000000</param>
> <param name='filter'>upsharpfast</param>
> </params>
> </node>
> <node operation='gegl:load' id='clone0'>
> <params>
> <param name="path">data/roemerlogo_large.png</param>
> </params>
> </node>
> </node>
> </gegl>

The properties in the XML file are set on operations, and GeglBuffer is
not an operation.

You can add a property to gegl:rotate and pass that along to GeglBuffer.
Perhaps not the prettiest, but it would work.

/ Martin

> The properties in the XML file are set on operations, and GeglBuffer is not
> an operation.
>
> You can add a property to gegl:rotate and pass that along to GeglBuffer.
> Perhaps not the prettiest, but it would work.
>
>  / Martin

Sorry, I should have been more specific.

The rotation script is just one example of tests being done on the
samplers. I am also doing scaling operations. An example of this
would be:

<gegl>
<gegl:scale x='1.19' y='.97' filter='upsharpfast'/>
<gegl:load path='data/roemerlogo_large.png'/>
</gegl>

What would be the most general way of getting this abyss color to
gegl-buffer-access.c?

Thanks again,
Eric

> What would be the most general way of getting this abyss color to
> gegl-buffer-access.c?

gegl/operations/affine/affine.c

would take care of rotation and scaling and a few other things,
although it probably is still not general enough.

Nicolas Robidoux
Universite Laurentienne