[mapserver-dev] RFC 113: Layer Compositing Modes

[Stephen Woodbridge]

Hi Thomas,

+1, this looks like a great addition.

Would it make sense to leave LAYER->OPACITY but just map that to the 
equivalent COMPOSITE ... END block?

I'm not opposed to dropping it because it is a major release, just 
wondering if it would be a trivial thing to remap the keyword to the new 
implementation.

-Steve W

On 2/10/2015 4:10 PM, thomas bonfort wrote:
> Hi Devs,
>
> Please have a look at RFC 113 (
> http://mapserver.org/development/rfc/ms-rfc-113.html ) that adds layer
> compositing modes and opens up future implementations of layer pixel
> filter pipelines (blurring comes immediately to mind, others might
> make sense too). Given that this RFC deprecates the LAYER->OPACITY
> keyword, 7.0 would be a good time to have this integrated, further
> developments can continue in a second phase without needing to change
> the mapfile syntax itself.
> Given the short timeframe we have before the 7.0 release, I'd like to
> call for a vote on this one right away (allowing us to respect the 48h
> delay before the end of the code sprint).
>
> I'll open with my +1
>
> regards,
>
> thomas
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