Just an FYI I think I figured it out by doing something like this (not fully
tested)
The jiffle script:
data = src[0];
dest = (data > 80.0 ) ? data : data*0 ;
//if it breaks the rule make that point 0 else leave it as the original data
value
the colorMap:
<sld:ColorMap type="intervals">
<sld:ColorMapEntry color="#ffffff" opacity="0.0" quantity="0"
label="No Impact"/>
<sld:ColorMapEntry color="#FFFF00"
opacity="0.0" quantity="80.0" label="80" />
<sld:ColorMapEntry color="#FF0000"
opacity="1.0" quantity="150.0" label="150" />
</sld:ColorMap>
Dominique Bessette
Senior Software Engineer
T 619.881.2478
From: Andrea Aime <[email protected]>
Sent: Thursday, February 17, 2022 1:18 AM
To: Bessette-Halsema, Dominique E <[email protected]>
Cc: GeoServer Users <[email protected]>
Subject: Re: [Geoserver-users] SLD is producing blurry image
[External: Use caution with links & attachments]
The behavior you're experiencing seems the expected one:
* You have pixels covering a very large area, they are rendered as square
blocks
* If you enable interporpolation, say bilinear, it's just acting on a 2x2
pixel block, giving the blurry effect
Looks like you'd like to have a full interpolation algorithm acting on the
image, say a Inverse Distance Weighted acting on the
pixel centers and treating them as sparse points instead, and work off larger
pixel distances (eventually account for all those in the
view before
GeoServer does not have such an ability ... maybe one could try chaining the
Barnes Surfaces algorithm, or modify the polygon extraction process to
allow for smoothing, and then chain that one too, but... rendering
transformation chaining is not working very well in general....
Looks like you need to go down this path:
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-fixes,-improvements-and-new-features-in-GeoServer<https://urldefense.us/v3/__https:/github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-fixes,-improvements-and-new-features-in-GeoServer__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNoMj21T8A$>
Cheers
Andrea
On Thu, Feb 17, 2022 at 12:33 AM Bessette-Halsema, Dominique E via
Geoserver-users
<[email protected]<mailto:[email protected]>>
wrote:
Hello
I have an sld that uses jiffle and the output is a 1 or a 0
I would like my style to appear “smoothed” out or interpolated on the map.
When the colormap type=ramp and the map is zoomed out it appears smooth but
when I start to zoom in it appears blurry (see attachement). I understand I
should use “type=”values”” to mark all the values of 1 red but then the image
appears blocky (see attachment). Is there a way I can assign the values of 1
red and smooth out the edges?
<?xml version="1.0" encoding="UTF-8"?><sld:StyledLayerDescriptor
xmlns=http://www.opengis.net/sld<https://urldefense.us/v3/__http:/www.opengis.net/sld__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNraeuDL7g$>
xmlns:sld=http://www.opengis.net/sld<https://urldefense.us/v3/__http:/www.opengis.net/sld__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNraeuDL7g$>
xmlns:gml=http://www.opengis.net/gml<https://urldefense.us/v3/__http:/www.opengis.net/gml__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNokxyWYuw$>
xmlns:ogc=http://www.opengis.net/ogc<https://urldefense.us/v3/__http:/www.opengis.net/ogc__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNpROv8hVQ$>
version="1.0.0">
<sld:NamedLayer>
<sld:Name>TEst</sld:Name>
<sld:UserStyle>
<sld:Name>Testsld:Name>
<sld:Title>TSEts</sld:Title>
<sld:FeatureTypeStyle>
<sld:Name>name</sld:Name>
<sld:Transformation>
<ogc:Function name="ras:Jiffle">
<ogc:Function name="parameter">
<ogc:Literal>coverage</ogc:Literal>
</ogc:Function>
<ogc:Function name="parameter">
<ogc:Literal>script</ogc:Literal>
<ogc:Literal>
data = src[0];
gph = src[1]
dted = src[2];
dest = (( data > 80.0 ) && (gph <
dted) ) ? 1 : 0;
</ogc:Literal>
</ogc:Function>
</ogc:Function>
</sld:Transformation>
<sld:Rule>
<sld:RasterSymbolizer>
<sld:ColorMap>
<sld:ColorMapEntry color="#ffffff" opacity="0.0" quantity="0"
label="No Impact"/>
<sld:ColorMapEntry color="#FF0000" opacity="1.0" quantity="1"
label="Impact"/>
</sld:ColorMap>
<sld:ContrastEnhancement/>
</sld:RasterSymbolizer>
</sld:Rule>
</sld:FeatureTypeStyle>
</sld:UserStyle>
</sld:NamedLayer>
</sld:StyledLayerDescriptor>
Thanks!
Dominique Bessette
_______________________________________________
Geoserver-users mailing list
Please make sure you read the following two resources before posting to this
list:
- Earning your support instead of buying it, but Ian Turton:
http://www.ianturton.com/talks/foss4g.html#/<https://urldefense.us/v3/__http:/www.ianturton.com/talks/foss4g.html*/__;Iw!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNpb130xzQ$>
- The GeoServer user list posting guidelines:
http://geoserver.org/comm/userlist-guidelines.html<https://urldefense.us/v3/__http:/geoserver.org/comm/userlist-guidelines.html__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNoiSH-xsw$>
If you want to request a feature or an improvement, also see this:
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer<https://urldefense.us/v3/__https:/github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNqqRxm5Cg$>
[email protected]<mailto:[email protected]>
https://lists.sourceforge.net/lists/listinfo/geoserver-users<https://urldefense.us/v3/__https:/lists.sourceforge.net/lists/listinfo/geoserver-users__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNpsk4O-hA$>
--
Regards,
Andrea Aime
==
GeoServer Professional Services from the experts!
Visit
http://bit.ly/gs-services-us<https://urldefense.us/v3/__http:/bit.ly/gs-services-us__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNpn-jNUXQ$>
for more information.
==
Ing. Andrea Aime
@geowolf
Technical Lead
GeoSolutions Group
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 333 8128928
https://www.geosolutionsgroup.com/<https://urldefense.us/v3/__https:/www.geosolutionsgroup.com/__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNqbwYie5A$>
http://twitter.com/geosolutions_it<https://urldefense.us/v3/__http:/twitter.com/geosolutions_it__;!!JRQnnSFuzw7wjAKq6ti6!jizqlPfXpVvW0LfS1Rl6oNeB2qelwmLgCuUvSX8-pXh7HkkyXU5hM6k8hIcWRNo4XS7ztQ$>
-------------------------------------------------------
Con riferimento alla normativa sul trattamento dei dati personali (Reg. UE
2016/679 - Regolamento generale sulla protezione dei dati “GDPR”), si precisa
che ogni circostanza inerente alla presente email (il suo contenuto, gli
eventuali allegati, etc.) è un dato la cui conoscenza è riservata al/i solo/i
destinatario/i indicati dallo scrivente. Se il messaggio Le è giunto per
errore, è tenuta/o a cancellarlo, ogni altra operazione è illecita. Le sarei
comunque grato se potesse darmene notizia.
This email is intended only for the person or entity to which it is addressed
and may contain information that is privileged, confidential or otherwise
protected from disclosure. We remind that - as provided by European Regulation
2016/679 “GDPR” - copying, dissemination or use of this e-mail or the
information herein by anyone other than the intended recipient is prohibited.
If you have received this email by mistake, please notify us immediately by
telephone or e-mail
_______________________________________________
Geoserver-users mailing list
Please make sure you read the following two resources before posting to this
list:
- Earning your support instead of buying it, but Ian Turton:
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines:
http://geoserver.org/comm/userlist-guidelines.html
If you want to request a feature or an improvement, also see this:
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer
[email protected]
https://lists.sourceforge.net/lists/listinfo/geoserver-users
