[MapServer-users] ITEMS and PROCESSING

[Lars Schylberg]

Hi list,

I just have to check if there is some way to read a ITEMS from a 
variable, ie ITEMS="[labels]".  The processing of items is "so good" for 
inline features.  What I would like, is to write ITEMS on the layer 
level without a feature block and read it from a variable.  Splitting 
strings with sql sqlite syntax is really a pain, when splitting the data 
while reading the data. I made several test myself, trying to specify 
ITEMS outside feature blocks without success. My sub labels could be 
between 1-5 characters which makes the substr commands in sql really 
complicated.


    FEATURE
  POINTS
    50 50
  END
  ITEMS "E4;55;655;9"
    END

   PROCESSING "ITEMS=label1,label2,label3,label4"

Just wondering if I have overlooked something in the Mapserver manual.

Thanks in advance / Lars Schylberg


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Re: [MapServer-users] Changing opacity of one layer in a multilayer WMS request URL with MapServer 8

[Matthew Graber]

Glad I could help, Jeff! MapServer.pdf is a great resource!

-Matt

On Tue, Feb 21, 2023 at 1:02 PM Jeff McKenna 
wrote:

> Wonderful to hear that you are using the MapServer.pdf!  (I actually put
> much effort into maintaining that PDF output, that but I never hear
> feedback...until someone reports a problem, like you did now, ha).
> Sometimes my updates differ from website rebuilds, will be sure to
> update the PDF for the upcoming 8.0.1 release.
>
> Again, thanks for this report!
>
> (also, don't be afraid to report doc issues like this at
> https://github.com/MapServer/MapServer-documentation/issues )
>
> thanks again for the report!
>
> -jeff
>
>
>
>
> --
> Jeff McKenna
> GatewayGeo: Developers of MS4W, MapServer Consulting and Training
> co-founder of FOSS4G
> http://gatewaygeo.com/
>
>
>
> On 2023-02-21 12:52 p.m., Matthew Graber wrote:
> > Hello all!
> >
> > With MapServer 8, I'm wondering what the proper way to change the
> > opacity of a single layer in a multilayer WMS request is.
> >
> > For example, the following URL excerpt shows the old way of
> > accomplishing this that worked while using MapServer 7:
> >
> >
> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b]=OPACITY+50
> >
> > My understanding is that this would have the same effect as adding
> > "OPACITY 50" to the test_b layer in the mapfile. The mapfile containing
> > test_a and test_b did not have OPACITY included when they were written.
> > Obviously, this no longer works with MapServer 8, and now that request
> > has the same results as omitting the "[test_b]=OPACITY+50"
> > portion entirely.
> >
> > Based on https://mapserver.org/fr/MIGRATION_GUIDE.html
> > , I see that OPACITY now
> > belongs inside a COMPOSITE object. I tried the following modifications
> > to the request URL:
> >
> >
> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite=OPACITY+50
> >
> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite[0]=OPACITY+50
> >
> > I also tried this both with the mapfile left as-is, and with an empty
> > COMPOSITE object being included in each layer object, and each time I
> > got the same unsuccessful result as before.
> >
> > Is there a way to accomplish this in MapServer 8?
> >
> > Also, does this map.layer[layername]=... syntax still work in MapServer
> > 8? The documentation at
> > https://mapserver.org/cgi/controls.html#using-mapserver-version-8
> > 
> > suggests it might no longer work for MapServer 8 (based on the heading
> > "Using MapServer version < 8"), but the documentation at
> > https://mapserver.org/pdf/MapServer.pdf
> >  shows the same examples with
> > the heading "Using MapServer version <= 8" on page 1065 of the PDF, so
> > I'm unsure if this is still intended to work in MapServer 8.
> >
> > Thank you,
> > Matt
> >
> > ___
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> > https://lists.osgeo.org/mailman/listinfo/mapserver-users
>
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Re: [MapServer-users] Changing opacity of one layer in a multilayer WMS request URL with MapServer 8

[Matthew Graber]

Hi all,

Thanks for your help! I was able to get the SLD_BODY WMS parameter to serve
as a workaround for setting opacity. In case anyone else has this problem,
the SLD I used in this case was:

http://www.opengis.net/sld;
version="1.0.0" xsi:schemaLocation="http://www.opengis.net/sld
http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd; xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance; xmlns:ogc="
http://www.opengis.net/ogc; xmlns:gml="http://www.opengis.net/gml;>



test_b







default



0.5













Appreciate everyone's help!
-Matt

On Wed, Feb 22, 2023 at 11:51 AM Rahkonen Jukka <
jukka.rahko...@maanmittauslaitos.fi> wrote:

> Hi,
>
>
>
> About the SLD, opacity appears in stroke, fill, graphic, and raster in SLD
> 1.0.
>
>
>
> -Jukka Rahkonen-
>
>
>
> *Lähettäjä:* MapServer-users  
> *Puolesta
> *Steve Lime
> *Lähetetty:* keskiviikko 22. helmikuuta 2023 17.47
> *Vastaanottaja:* Matthew Graber 
> *Kopio:* mapserver-users@lists.osgeo.org
> *Aihe:* Re: [MapServer-users] Changing opacity of one layer in a
> multilayer WMS request URL with MapServer 8
>
>
>
> Hi Matthew: That functionality was indeed removed as part of 8.0. I kind
> of expect that we might build back something for more limited use cases if
> necessary, Does SLD support opacity/transparency?
>
>
>
> --Steve
>
>
>
>
>
> On Tue, Feb 21, 2023 at 10:52 AM Matthew Graber 
> wrote:
>
> Hello all!
>
>
>
> With MapServer 8, I'm wondering what the proper way to change the opacity
> of a single layer in a multilayer WMS request is.
>
>
>
> For example, the following URL excerpt shows the old way of accomplishing
> this that worked while using MapServer 7:
>
>
>
>
> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b]=OPACITY+50
>
>
>
> My understanding is that this would have the same effect as adding
> "OPACITY 50" to the test_b layer in the mapfile. The mapfile containing
> test_a and test_b did not have OPACITY included when they were written.
> Obviously, this no longer works with MapServer 8, and now that request has
> the same results as omitting the "[test_b]=OPACITY+50" portion
> entirely.
>
>
>
> Based on https://mapserver.org/fr/MIGRATION_GUIDE.html
> ,
> I see that OPACITY now belongs inside a COMPOSITE object. I tried the
> following modifications to the request URL:
>
>
>
>
> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite=OPACITY+50
>
>
> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite[0]=OPACITY+50
>
>
>
> I also tried this both with the mapfile left as-is, and with an empty
> COMPOSITE object being included in each layer object, and each time I got
> the same unsuccessful result as before.
>
>
>
> Is there a way to accomplish this in MapServer 8?
>
>
>
> Also, does this map.layer[layername]=... syntax still work in MapServer 8?
> The documentation at
> https://mapserver.org/cgi/controls.html#using-mapserver-version-8
> 
> suggests it might no longer work for MapServer 8 (based on the heading
> "Using MapServer version < 8"), but the documentation at
> https://mapserver.org/pdf/MapServer.pdf
> 
> shows the same examples with the heading "Using MapServer version <= 8" on
> page 1065 of the PDF, so I'm unsure if this is still intended to work in
> MapServer 8.
>
>
>
> Thank you,
>
> Matt
>
> ___
> MapServer-users mailing list
> MapServer-users@lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/mapserver-users
> 

Re: [MapServer-users] Changing opacity of one layer in a multilayer WMS request URL with MapServer 8

[Rahkonen Jukka]

Hi,

About the SLD, opacity appears in stroke, fill, graphic, and raster in SLD 1.0.

-Jukka Rahkonen-

Lähettäjä: MapServer-users  Puolesta 
Steve Lime
Lähetetty: keskiviikko 22. helmikuuta 2023 17.47
Vastaanottaja: Matthew Graber 
Kopio: mapserver-users@lists.osgeo.org
Aihe: Re: [MapServer-users] Changing opacity of one layer in a multilayer WMS 
request URL with MapServer 8

Hi Matthew: That functionality was indeed removed as part of 8.0. I kind of 
expect that we might build back something for more limited use cases if 
necessary, Does SLD support opacity/transparency?

--Steve


On Tue, Feb 21, 2023 at 10:52 AM Matthew Graber 
mailto:graber...@gmail.com>> wrote:
Hello all!

With MapServer 8, I'm wondering what the proper way to change the opacity of a 
single layer in a multilayer WMS request is.

For example, the following URL excerpt shows the old way of accomplishing this 
that worked while using MapServer 7:

SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b]=OPACITY+50

My understanding is that this would have the same effect as adding "OPACITY 50" 
to the test_b layer in the mapfile. The mapfile containing test_a and test_b 
did not have OPACITY included when they were written. Obviously, this no longer 
works with MapServer 8, and now that request has the same results as omitting 
the "[test_b]=OPACITY+50" portion entirely.

Based on 
https://mapserver.org/fr/MIGRATION_GUIDE.html,
 I see that OPACITY now belongs inside a COMPOSITE object. I tried the 
following modifications to the request URL:

SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite=OPACITY+50
SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite[0]=OPACITY+50

I also tried this both with the mapfile left as-is, and with an empty COMPOSITE 
object being included in each layer object, and each time I got the same 
unsuccessful result as before.

Is there a way to accomplish this in MapServer 8?

Also, does this map.layer[layername]=... syntax still work in MapServer 8? The 
documentation at 
https://mapserver.org/cgi/controls.html#using-mapserver-version-8
 suggests it might no longer work for MapServer 8 (based on the heading "Using 
MapServer version < 8"), but the documentation at 
https://mapserver.org/pdf/MapServer.pdf
 shows the same examples with the heading "Using MapServer version <= 8" on 
page 1065 of the PDF, so I'm unsure if this is still intended to work in 
MapServer 8.

Thank you,
Matt
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Re: [MapServer-users] Changing opacity of one layer in a multilayer WMS request URL with MapServer 8

[Seth G]

Hi,

I think OPACITY should still work at the STYLE level: 
https://mapserver.org/mapfile/style.html#mapfile-style-opacity
If you are using WMS then you could setup different styles with different 
OPACITY values, and then use named styles to select the appropriate style (with 
the STYLES= added to the WMS request). 

Seth


--
web:https://geographika.net
twitter: @geographika

On Wed, Feb 22, 2023, at 4:46 PM, Steve Lime wrote:
> Hi Matthew: That functionality was indeed removed as part of 8.0. I kind of 
> expect that we might build back something for more limited use cases if 
> necessary, Does SLD support opacity/transparency? 
> 
> --Steve
> 
> 
> On Tue, Feb 21, 2023 at 10:52 AM Matthew Graber  wrote:
>> Hello all!
>> 
>> With MapServer 8, I'm wondering what the proper way to change the opacity of 
>> a single layer in a multilayer WMS request is.
>> 
>> For example, the following URL excerpt shows the old way of accomplishing 
>> this that worked while using MapServer 7:
>> 
>> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b]=OPACITY+50
>> 
>> My understanding is that this would have the same effect as adding "OPACITY 
>> 50" to the test_b layer in the mapfile. The mapfile containing test_a and 
>> test_b did not have OPACITY included when they were written. Obviously, this 
>> no longer works with MapServer 8, and now that request has the same results 
>> as omitting the "[test_b]=OPACITY+50" portion entirely.
>> 
>> Based on https://mapserver.org/fr/MIGRATION_GUIDE.html, I see that OPACITY 
>> now belongs inside a COMPOSITE object. I tried the following modifications 
>> to the request URL:
>> 
>> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite=OPACITY+50
>> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite[0]=OPACITY+50
>> 
>> I also tried this both with the mapfile left as-is, and with an empty 
>> COMPOSITE object being included in each layer object, and each time I got 
>> the same unsuccessful result as before.
>> 
>> Is there a way to accomplish this in MapServer 8?
>> 
>> Also, does this map.layer[layername]=... syntax still work in MapServer 8? 
>> The documentation at 
>> https://mapserver.org/cgi/controls.html#using-mapserver-version-8 suggests 
>> it might no longer work for MapServer 8 (based on the heading "Using 
>> MapServer version < 8"), but the documentation at 
>> https://mapserver.org/pdf/MapServer.pdf shows the same examples with the 
>> heading "Using MapServer version <= 8" on page 1065 of the PDF, so I'm 
>> unsure if this is still intended to work in MapServer 8.
>> 
>> Thank you,
>> Matt
>> ___
>> MapServer-users mailing list
>> MapServer-users@lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/mapserver-users
> ___
> MapServer-users mailing list
> MapServer-users@lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/mapserver-users
> 
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Re: [MapServer-users] Changing opacity of one layer in a multilayer WMS request URL with MapServer 8

[Steve Lime]

Hi Matthew: That functionality was indeed removed as part of 8.0. I kind of
expect that we might build back something for more limited use cases if
necessary, Does SLD support opacity/transparency?

--Steve


On Tue, Feb 21, 2023 at 10:52 AM Matthew Graber  wrote:

> Hello all!
>
> With MapServer 8, I'm wondering what the proper way to change the opacity
> of a single layer in a multilayer WMS request is.
>
> For example, the following URL excerpt shows the old way of accomplishing
> this that worked while using MapServer 7:
>
>
> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b]=OPACITY+50
>
> My understanding is that this would have the same effect as adding
> "OPACITY 50" to the test_b layer in the mapfile. The mapfile containing
> test_a and test_b did not have OPACITY included when they were written.
> Obviously, this no longer works with MapServer 8, and now that request has
> the same results as omitting the "[test_b]=OPACITY+50" portion
> entirely.
>
> Based on https://mapserver.org/fr/MIGRATION_GUIDE.html, I see that
> OPACITY now belongs inside a COMPOSITE object. I tried the following
> modifications to the request URL:
>
>
> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite=OPACITY+50
>
> SERVICE=WMS=1.3.0=GetMap=image%2Fpng=test_a,test_b[test_b].composite[0]=OPACITY+50
>
> I also tried this both with the mapfile left as-is, and with an empty
> COMPOSITE object being included in each layer object, and each time I got
> the same unsuccessful result as before.
>
> Is there a way to accomplish this in MapServer 8?
>
> Also, does this map.layer[layername]=... syntax still work in MapServer 8?
> The documentation at
> https://mapserver.org/cgi/controls.html#using-mapserver-version-8
> suggests it might no longer work for MapServer 8 (based on the heading
> "Using MapServer version < 8"), but the documentation at
> https://mapserver.org/pdf/MapServer.pdf shows the same examples with the
> heading "Using MapServer version <= 8" on page 1065 of the PDF, so I'm
> unsure if this is still intended to work in MapServer 8.
>
> Thank you,
> Matt
> ___
> MapServer-users mailing list
> MapServer-users@lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/mapserver-users
>
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[MapServer-users] Can Mapserver store VRT content in cache?

[Marcin Niemyjski via MapServer-users]

Hello,

can Mapserver store VRT content in cache so is uses cached file to connect to 
source data when requesting it? I want to limit S3 requests (because all data 
is stored on s3, including VRT) so Mapserver sends only S3 requests for source 
data.

Any sugestions?

Thanks,
Marcin





[cid:096981c4-895a-4af8-ba57-c05126170280]
   Book time to meet with 
me
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