Thanks Ian, you're 100% right. I was able to manually edit the SLD produced by the CSS translator to:
<ogc:Literal><![CDATA[ ]]></ogc:Literal> and then my label-geometry worked as expected. I believe this might be a bug in the CSS extension, which I have logged in Jira: https://osgeo-org.atlassian.net/browse/GEOT-7486 Thank you Andrea, Jody and Ian for your help. Peter On Thu, 26 Oct 2023 at 22:02, Ian Turton <ijtur...@gmail.com> wrote: > White space gets reduced in the XML, so you might need a cdata block > around it. Not sure how CSS handles it. > > Ian > > On Thu, 26 Oct 2023, 20:44 Peter Smythe, <g...@smythe.co.za> wrote: > >> Thank you very much for your answers. All 3 of them are super useful. >> >> Ian, I do not have the luxury of building up the string in a single >> attribute, so I need to use the Concatenate or strConcat functions from >> Jody's reference. Andrea, the WKT X and Y coordinates are not separated by >> a comma but rather by a space. >> >> The strConcat function only joins 2 strings, the Concatenate function is >> able to join many strings. >> >> So something like this should work: >> >> label-geometry: [geomFromWKT(Concatenate('POINT(', label_lng, ' ', >> label_lat, ')'))]; >> or >> label-geometry: >> [geomFromWKT(strConcat(strConcat(strConcat(strConcat('POINT(', label_lng), >> ' '), label_lat), ')'))]; >> >> However, the SLD created contains (for the space separator between X and >> Y): >> <ogc:Literal> </ogc:Literal> >> >> and it appears from my testing and debugging that this is evaluated as "" >> i.e. an empty string. >> >> (I get the exception: `bad wkt` when evaluating it, and I have confirmed >> the above in Eclipse) >> >> Trying to force a ` ` into the Literal does not work. >> >> Is there a bug with parsing a literal space? >> >> So, I am very close to my solution, I just need a way to represent a >> literal space, if anyone can assist, please? >> >> Thanks >> >> Peter >> >> On Thu, 26 Oct 2023 at 17:29, Ian Turton <ijtur...@gmail.com> wrote: >> >>> I usually use `geomFromWKT(geometry)` with a string like 'POINT('+x+' >>> '+y+')' as the parameter. But a nicer function would be useful. >>> >>> There is also a pole of accessibility function that is better than >>> centroid if you have oddly shaped polygons. >>> >>> Ian >>> >>> On Thu, 26 Oct 2023 at 16:22, Jody Garnett <jody.garn...@gmail.com> >>> wrote: >>> >>>> There should be a function to create a point from lat, Lon but I do not >>>> see it in the function list. It is a little to do anything other than >>>> transform the main geometry - since often the data is queried using a BBOX >>>> against the main geometry. >>>> >>>> For greater control I would recommend use the centroid as a staring >>>> location, and provide an offset to determine the label position. The offset >>>> can be expressed as an expression which you can adjust for scale. >>>> >>>> Reference: >>>> >>>> - >>>> >>>> https://docs.geotools.org/stable/userguide/library/main/function_list.html >>>> >>>> <https://fdfdfha.r.af.d.sendibt2.com/tr/cl/euXGZ9x4RgzAEJHnr8_XYW4sQUdxTgvINg9XAoGEGHVs4s3MJt7JlfQ9z8kojpBeDjalS074Ct4w_FzOXQzeQteVkC4CgL0XOCtphD3yiku5rwacybz61OAVS2V-YWjm2b3v2cdktX7Q0k9fThJprUFLuoUA12thVN0k2OO-92IUNMICq5zmth3RJAvCrB_ZXg6z7XaCD4Rvc4c6mlb5gvuiKijQ1AAB_bk56P9LelJoMTozAmQY-ROjXY6Z4Z9CH5sZnI6uszqaB3S4O1sxEkBS_-xeHrTajy0kybvtXav-0qWzPg> >>>> >>>> -- >>>> Jody Garnett >>>> >>>> >>>> On Oct 26, 2023 at 5:32:55 AM, Peter Smythe <g...@smythe.co.za> wrote: >>>> >>>>> Hi all >>>>> >>>>> I am trying to use 2 numeric attributes called label_lat and label_lng >>>>> to create a point geometry for the labeling of a polygon. >>>>> >>>>> Can anyone point me to the correct format, if this is indeed possible? >>>>> >>>>> I cannot find the information on >>>>> https://docs.geoserver.org/latest/en/user/styling/css/index.html >>>>> <https://fdfdfha.r.af.d.sendibt2.com/tr/cl/xyoUP5eN464DydrOGqm8BDm7444mIJZfoKj7NPfOgCaOWczz2TBs_wlTzeAWk-wH7YI8cPsDW5UXJQ7xrUegk_MeefrvVxLjepbnzSSla_tRhI5B2JuKxN3QhnO3Cl32jH8y4FglrQP3-2eECQLO10LEafasD05kJX5EskHxKcfNNV8lJ-pknCUbsxUVR6QrSYLIdlY4KUwdeX8x1MKCdK5tPk-hXMkazYYWnOp5nCN0VV2kFx1PqYodo8t1EPzmgxXfk6qf1ufXJ_mbr3CdQpeVz1Mj47CsH7qGdzA> >>>>> >>>>> I have tried: >>>>> >>>>> label-geometry: [label_lng], [label_lat]; >>>>> label-geometry: [(label_lng, label_lat)]; >>>>> etc >>>>> >>>>> and the reverse coordinate orders >>>>> >>>>> label-geometry: [centroid(geom)]; does work as expected, but I >>>>> need more control. >>>>> >>>>> >>>>> *I also cannot create a new column in the GeoServer SQL view that is >>>>> visible in the output e.g. ST_Point (label_lng, label_lat, 4326) as >>>>> label-geom * >>>>> *i.e. if I create the new column, it must not be visible in the >>>>> output.* >>>>> >>>>> Thanks >>>>> >>>>> Peter >>>>> >>>>> _______________________________________________ >>>>> 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://fdfdfha.r.af.d.sendibt2.com/tr/cl/d6ijUroA7OwybKz0YM_iRNGEa6j9vlWLsEu_z0sIv8ZnxmUUBlBKyKxPXJS45ZL9qYg5vO6D9FSwhcTUDb6Ku5VFmtoVjBoWURshyJ7ELLJOnvPGNfsrda6XZ0I0nlUy-f8Wq0OLxOfN9x6og1bEmbdKKR9KyTBiVWhF2hl856NrUXOwmxO_igaCINPlAAI8CHI4hCle_D0lUicQ9s6uZRmM1VpbwczchAkrG98KC73crVmhkEjxS3VMeamn9O8w7JnNYDU> >>>>> - The GeoServer user list posting guidelines: >>>>> http://geoserver.org/comm/userlist-guidelines.html >>>>> <https://fdfdfha.r.af.d.sendibt2.com/tr/cl/oW2iacJhr4K7S7zmdDbGwJm1E1nLCQDKX1pHjuOgwegKqwFRQOae8wo8LyX1vh6Fv2CfN4v0hMqJS4NcWYuEJ_3is6GCVwNK-pQOFooWBKxe44AbxXeyo5lEfj0jjv1dlE_GkGae4MVH0yaJM3WVN7As61dh2Wd0os7cKdsXOvsWAwkEIg9LiKvFH65G6hA1d2w0Q1U6afUrmuxz0KCxm0OhWcUJYpHWGzJ5-8bW32Y2OkiQpxAMR7Phf-9IQbcYmmmvX-QFYg> >>>>> >>>>> 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://fdfdfha.r.af.d.sendibt2.com/tr/cl/obEJJnwvQN-pfiBIC3iPKnFvptof84buzbUGooPXORP1L3GXvf6hR8U3ZVHCf23Kwim0GsBwUpOrcheaPW1i8MHm-IVpzKXlRJZMoabfHmEA4bWXe2g3KoHC-dimkxqO56CKQyhc4vL4_9gn0F3zMUugAU9aGJuPjeoY8gzgzr6TNXyFPNJwWygFPL3UmKDyOPQM52rBK0QE256Pg6cBlzCeLYHCtrQfSdxlX-UG-l7MQZFMcGp6APs50yt8Ihguql77BRVDhmfjkO_ByLMsRcUxQU-uRedoh1PZiRo3EdgQ4DBonr-CAKaWw8EslsKtrly4PFexCz-EYaCNXaOi8501ctD5r0wqcDXSjp6_d0z24Alrfcp9> >>>>> >>>>> >>>>> Geoserver-users@lists.sourceforge.net >>>>> https://lists.sourceforge.net/lists/listinfo/geoserver-users >>>>> <https://fdfdfha.r.af.d.sendibt2.com/tr/cl/sTN5Kg5-RZnLeTKsyo5cPSoBLZE14sU08m3kbftrwWkpP_3bYVbQb7HGzJR5Q7RdTamcyPALhMqiSVWmdtiGeyJj3mEnDQGMGDtpeNy6ByhDEufWEWhcNUAiRgCsv75pSJIQqCFQzoXEIs818YqUnIoNeIg_KbJCWsGhoEvA0LBga1RJbVJ32ajaem13n7_p_atWHOZFnKanpsgTjD7WxyoZQDnlsSSV5_QP2C6UxTIBjVbLZnfJg0LfCRnTyeJa48fVRxth0urUdLJBnn_lwF44fw> >>>>> >>>> _______________________________________________ >>>> 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://fdfdfha.r.af.d.sendibt2.com/tr/cl/SYHaAC-Od_dFQY9cztKtt-0afvi-mGnc3Dh0jHXppogi9ai6jH4woUYGL58mavu3zglF2NZ_FklHcTeMnlTC0WCBUxM0pG3oIaIN91uW3fILDBpOinlM4W0YoRRNdei8C2MTFcg2o3p74xkFd3tVYwWKAWEAitNO8jar30PrZ10tDqxGCUkSsaoJCwt5GIZhLMrKOly-Zsxdm8WwYH6ca_vonj2aSKfZgDD1fX-2EykaV-KLOmoNP-1Mq-hSydQRfn7unX8> >>>> - The GeoServer user list posting guidelines: >>>> http://geoserver.org/comm/userlist-guidelines.html >>>> <https://fdfdfha.r.af.d.sendibt2.com/tr/cl/pRW23qOuDAE_fxObMLWaAfw16Cr2uHzN44a9AGgDICBcB2KQRrTuungChin-8StnPfAZP_8tG-3VKvtZSsMd8l7HV-x9pGf8czM87Xs7jDF_R4tl2qrjrN8SMb7CDtHlDIKXGN_OA122cxaexHTI7Mi4NTLIf1n3hmuwLQUEKLxDYBsyuxPUJHKvubOW5TJ4rkv1GH-v396735Hyg3YvRbiHy_CMmHNSDv3vY7qDhelprG5xcrZxPU8ZgSnm-wUWDU4Z7-M_vw> >>>> >>>> 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://fdfdfha.r.af.d.sendibt2.com/tr/cl/h8qmnTzGW54dJH2EMvZu7APIulkdeMW2x7ufuGQ8AzWqqHkrEK1CvhoMk5LsQV-Q0cc13kxn1pxkPRPnt4LLFg8xmWE9DyVAMPZdy-jCXt0bvgCTOsof5AcKLI3rAp9URg-0KpDEjGAVPtfhO8st27NJ-6BrCf5oPK_3MAeqvKvHcw0cbMHC0JjLrlncwIigwmTRnRBRvnK-doUj-wW_d3cdJZBCb0csMAxepXOLntJbduNgo9mre6JVC7KVYZYY6LVfvjfQts3J0YQMhofCw-LZ_wp-5rrls3tKgm58GFS0l8TUiyFlfHU2zMTz8hrJ30QDj58ad6eJj9FaELuLsBzpJITY6ptN3f6aS0p-Pdoh2K_psqVB> >>>> >>>> >>>> Geoserver-users@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/geoserver-users >>>> <https://fdfdfha.r.af.d.sendibt2.com/tr/cl/9TaqHHpkICG-eZVtiXBbHhSeN95A7DUqK-O93udj4aHJayPL6taeQh9PGF8Lsy2LUBV8rwMVnv2NtL5EQRnPrrYem0sL2XgxFP18PvInX5F87rp46lK1MRrtXOXS7x5G9XmQtX_3P16HTEIkUHLpcx107eTrtrnrnYRrLYR42MaUWs9-VHRBwAfrLS6u3s4oPqpoMPJ7TAKdxYIUnymM6_rUigPDLkcT6kyAIm543nqPdJnTn2RZvI9jvxoO6zSBJWGljw9tqz-jxxZo9fXxTKlhtA> >>>> >>> >>> >>> -- >>> Ian Turton >>> >> _______________________________________________ >> 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 >> >> >> Geoserver-users@lists.sourceforge.net >> 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 Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
