That sounds like a useful new feature Maurizio. If you want to create a Jira issue (for the release notes and for any discussion) and pull request (for implementation, test case, docs).
Two ideas for feedback: - Shorten "*gif_disposal_method" to "**gif_disposal" (since we method is going to be obvious from context)* *- *check other format options and check if they do camel case or "_" between terms (gif_disposal:background_color or gif_disposal:BackgroundColor). I left off the "restoreTo" as I think that may be obvious from context (i.e. And one question: - Is GIF the only animation we got going on? Should we be making these terms more general (loop_continously, frames_delay, frame_disposal). -- Jody Garnett On 24 September 2015 at 07:59, Maurizio La Mela <maurizio.la.m...@gmail.com> wrote: > I’ve implemented a new format option for the *WMS Animator* named > *gif_disposal_method*. Through this option it can be specified what to do > with the previous GIF frame once a new frame is displayed. Valid values are > *none*, *doNotDispose*, *restoreToBackgroundColor* and *restoreToPrevious*. > The default value is *none*. Before, this disposal method (*none*) was > set statically for animated gifs. Using this method, gif animations don’t > hide their previous frames. In other words, new frames were just rendered > on top of the previous frames. With the newly added *gif_disposal_method * > option, for example it is possible to hide all previous frames by > changing the disposal method to* restoreToBackgroundColor* . > > All four valid option values are also listed and described in the GIF > specification <http://www.w3.org/Graphics/GIF/spec-gif89a.txt> (23. C IV > Disposal Method). > > The option *gif_disposal_method *can be used like the other two format > options parameter *gif_loop_continuously *and *gif_frames_delay.* > > > > Example usage: > > > > *http://localhost:8080/geoserver/wms/animate?layers=topp:states,sf:restricted&format=image/gif;subtype=animated&aparam=bbox > <http://localhost:8080/geoserver/wms/animate?layers=topp:states,sf:restricted&format=image/gif;subtype=animated&aparam=bbox>* > > > *&avalues=-180\,-90\,180\,90,-125\,25\,-67\,50&format_options=gif_loop_continuosly:true;gif_disposal_method:restoreToBackgroundColor* > > *&width=640* > > > > For the implementation it was required to add and change some lines in > the following files: > > · src/wms/src/main/java/org/geoserver/wms/WMS.java > > · src/wms/src/main/java/org/geoserver/wms/map/GIFMapResponse.java > > > > I’ve also added a drop down box where the default disposal method can be > set to the WMS admin page of the Geoserver. > > > > Do you think we can implement this new feature into the GeoServer stable > version? > > > > Regards > > Maurizio La Mela > > > > > ------------------------------------------------------------------------------ > Monitor Your Dynamic Infrastructure at Any Scale With Datadog! > Get real-time metrics from all of your servers, apps and tools > in one place. > SourceForge users - Click here to start your Free Trial of Datadog now! > http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 > _______________________________________________ > Geoserver-devel mailing list > Geoserver-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geoserver-devel > >
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