Hi James,
I am not 100% certain about the original problem. However let me
share two ways that i use to merge more than one layer into one
parent layer:
I either use CONNECTIONTYPE UNION as is described here:
https://mapserver.org/mapfile/union.html
Or I use WMS_LAYER_GROUP that I simply define in all "child"
layers. There is no need for a "parent" in this case for all
layers in the group can be queried at once by calling the layer
group as a normal layer in the WMS request. I do tend to keep the
names for those groups simple and without any extra characters.
For instance if I have
"WMS_LAYER_GROUP" "/my_sweet_group"
The call can simply be something like
http://<my_url.com>/cgi-bin/mapserv?map=<path_to_mapfile>wms.map&LAYERS=my_sweet_group&...
Documentation: https://mapserver.org/ogc/wms_server.html
If you need SRS transformation, I would define that on the level
of the entire map (WEB - block) rather than on the layer level.
That can be confusing from my point of view.
I hope this helps some?
Best
Lars
Lars Fricke
Forschung & Entwicklung
+49(0)39602-183097
+49(0)39602-183098
SkenData GmbH
Mühlendamm 8B
18055 Rostock
www.skendata.de
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Am 28.10.19 um 03:55 schrieb James
Gardner:
Hi
Lars,
Sub Layer
In zzz.map
<<+++
LAYER
CONNECTION "host=**** dbname=**** user=**** password=****"
CONNECTIONTYPE POSTGIS
DATA "the_geom FROM (select id,the_geom,time) as subquery using
unique id"
GROUP "layer56_simulation_15044"
METADATA
"wms_srs" "EPSG:900913"
"gml_the_geom_type" "point"
"wms_keywordlist" "simulation_id 15044"
"gml_include_items" "*"
"gml_geometries" "the_geom"
"wms_group_title" "/2019-09-27/09:00 - test (ID: 15044)"
"wms_title" "*****"
END # METADATA
NAME "layer55_simulation_15044 "
PROCESSING "CLOSE_CONNECTION=DEFER"
PROJECTION
"init=epsg:900913"
END # PROJECTION
STATUS ON
TEMPLATE "zzzzz.html"
TILEITEM "location"
TOLERANCE 20
TYPE POINT
UNITS METERS
END
+++
Parent layer
<<<+++
LAYER
CONNECTION
"http://localhost/cgi-bin/mapserv?map=/data/web_projects/mapproxy/docker/ows/zzzz.map&"
CONNECTIONTYPE WMS
METADATA
"wms_srs" "EPSG:900913 EPSG:4326"
"wms_extent" "13048989.6381759 -4108382.56980896 13049321.6706854
-4107853.60807286"
"wms_layer_group" "/2019-09-27/09:00 - test (ID: 15044)"
"wms_name" "layer56_simulation_15044"
"wms_feature_info_mime_type" "text/html"
"wms_format" "image/png"
"wms_keywordlist" "simulation_id 15044,status complete"
"wms_server_version" "1.1.1"
"wms_title" "********"
END # METADATA
NAME "layer56_simulation_15044"
PROJECTION
"init=epsg:900913"
END # PROJECTION
STATUS ON
TEMPLATE "zzzz.html"
TILEITEM "location"
TOLERANCE 20
TYPE RASTER
UNITS METERS
CLASS
NAME "*******"
STYLE
SIZE 20
SYMBOL "********"
END # STYLE
END # CLASS
+++
When I do a getFeatureInfo on the parent layer, it returns
nothing, when it should query the sublayer and return something...
Thanks
JG..
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