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Re: [Geoserver-users] SLD for lots
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From: Ian T. <ijt...@gm...> - 2024-08-20 09:15:43
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However, since the question is about lines the simple answer is to make sure that all your lines run in the same direction so the labelling to the left or right gives a consistent result. But you are right it would be cool to make that JTS operation (and others) available via the function interface. Ian On Tue, 20 Aug 2024 at 04:18, Jody Garnett <jod...@gm...> wrote: > There is a tutorial on how to make a function here: > https://docs.geotools.org/stable/userguide/tutorial/function.html > > The example shows how to process a geometry (a point in this case). > > The geometry object has a geometry.reverse() method that can be used to > change the order from clockwise to counter clockwise. > > Looks like there is a method here to force geometry to CCW: > > https://javadoc.io/doc/org.locationtech.jts.io/jts-io-common/1.18.1/org/locationtech/jts/io/geojson/OrientationTransformer.html > > It would be a useful function to add to GeoTools! > > > > - - > Jody Garnett > > > On Mon, Aug 19, 2024 at 6:02 PM Humphries, Graham via Geoserver-users < > geo...@li...> wrote: > >> A line does not have an inside. >> >> You need to ensure your lines are drawn in the same direction ie: >> clockwise or anti clockwise you could offset from the line to the “inside” >> >> Alternatively, you could create a polygon and then use a spatial >> operation to determine where the inside is. >> >> >> >> I don’t think it is a trivial task. >> >> >> >> Regards, >> >> Graham Humphries >> >> >> >> *From:* Fernando Quadro <fsq...@gm...> >> *Sent:* Tuesday, August 20, 2024 7:06 AM >> *To:* Ian Turton <ijt...@gm...> >> *Cc:* geoserver-users <geo...@li...> >> *Subject:* Re: [Geoserver-users] SLD for lots >> >> >> >> Ian, >> >> >> Yes, it is a line, and how can I invent it so that the information stays >> on the "inside"? >> >> >> >> Best regards, >> >> >> Fernando Quadro >> http://www.fernandoquadro.com.br >> https://www.linkedin.com/in/fernandoquadro/ >> >> >> >> >> >> Em qui., 15 de ago. de 2024 às 06:02, Ian Turton <ijt...@gm...> >> escreveu: >> >> If they are lines then you need to reverse the ones where they are on the >> "wrong" side >> >> >> >> Ian >> >> >> >> On Wed, 14 Aug 2024 at 23:03, Jody Garnett <jod...@gm...> >> wrote: >> >> I wonder if you can do a label offset with a negative offset. You then >> need to ensure the polygons all wind CW. Or positive offset with CCW >> winding. >> >> >> >> What is your data in? Can you check the geometry? >> >> - - >> >> Jody Garnett >> >> >> >> >> >> On Wed, Aug 14, 2024 at 1:10 PM Fernando Quadro <fsq...@gm...> >> wrote: >> >> Hello everyone. I'm creating an SLD for lots and blocks, but I'd like the >> measurements to always be within the polygon, and if you notice, some are >> outside the polygon. >> >> >> >> >> >> Does anyone know if it's possible to do this, or if it's a limitation? >> >> The SLD I'm generating is this: >> >> >> >> <?xml version="1.0" encoding="UTF-8"?> >> <StyledLayerDescriptor xmlns="http://www.opengis.net/sld" >> version="1.1.0" xsi:schemaLocation="http://www.opengis.net/sld >> http://schemas.opengis.net/sld/1.1.0/StyledLayerDescriptor.xsd" >> xmlns:se="http://www.opengis.net/se" xmlns:xlink=" >> http://www.w3.org/1999/xlink" xmlns:xsi=" >> http://www.w3.org/2001/XMLSchema-instance" xmlns:ogc=" >> http://www.opengis.net/ogc"> >> <NamedLayer> >> <se:Name>geo_medidalote</se:Name> >> <UserStyle> >> <se:Name>medidalote</se:Name> >> >> <se:FeatureTypeStyle> >> >> <se:Rule> >> >> >> <se:LineSymbolizer> >> <se:Stroke> >> <se:SvgParameter name="stroke">#000000</se:SvgParameter> >> <se:SvgParameter name="stroke-opacity">0</se:SvgParameter> >> <se:SvgParameter name="stroke-width">1</se:SvgParameter> >> <se:SvgParameter >> name="stroke-linejoin">bevel</se:SvgParameter> >> <se:SvgParameter >> name="stroke-linecap">square</se:SvgParameter> >> </se:Stroke> >> >> </se:LineSymbolizer> >> >> </se:Rule> >> >> <se:Rule> >> >> <MaxScaleDenominator>8000</MaxScaleDenominator> >> >> <se:TextSymbolizer> >> >> <se:Label> >> <ogc:PropertyName>comprimento</ogc:PropertyName> >> </se:Label> >> >> <se:Font> >> <se:SvgParameter name="font-family">Arial</se:SvgParameter> >> <se:SvgParameter name="font-size">8</se:SvgParameter> >> </se:Font> >> >> <se:LabelPlacement> >> >> <se:LinePlacement> >> >> <se:PerpendicularOffset>10</se:PerpendicularOffset> >> <se:GeneralizeLine>true</se:GeneralizeLine> >> </se:LinePlacement> >> >> <VendorOption name="forceLeftToRight">false</VendorOption> >> >> </se:LabelPlacement> >> >> <se:Fill> >> <se:SvgParameter name="fill">#323232</se:SvgParameter> >> </se:Fill> >> >> </se:TextSymbolizer> >> >> </se:Rule> >> >> </se:FeatureTypeStyle> >> </UserStyle> >> </NamedLayer> >> </StyledLayerDescriptor> >> >> >> >> Best regards, >> >> >> Fernando Quadro >> http://www.fernandoquadro.com.br >> https://www.linkedin.com/in/fernandoquadro/ >> >> _______________________________________________ >> 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 >> >> >> Geo...@li... >> https://lists.sourceforge.net/lists/listinfo/geoserver-users >> >> _______________________________________________ >> 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 >> >> >> Geo...@li... >> https://lists.sourceforge.net/lists/listinfo/geoserver-users >> >> >> >> -- >> >> Ian Turton >> >> >> ------------------------------ >> >> CONFIDENTIALITY NOTICE AND DISCLAIMER >> The information in this transmission may be confidential and/or protected >> by legal professional privilege, and is intended only for the person or >> persons to whom it is addressed. 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No liability is accepted for any >> unauthorised use of the information contained in this transmission. >> _______________________________________________ >> 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 >> >> >> Geo...@li... >> https://lists.sourceforge.net/lists/listinfo/geoserver-users >> > -- Ian Turton |
