[MapServer-users] Vector tileindex with connectiontype OGR
Peter Schmitt
pschmitt at gmail.com
Tue Dec 6 15:56:05 PST 2022
Hi,
How do I get a vector tileindex working with another Mapserver layer as the
tileindex?
I have the following tindex.geojson:
{
"type":"FeatureCollection","features":[{"type":"Feature","properties":{"location":"/app/mapfiles/test.geojson"},"geometry":{"type":"Polygon","coordinates":[[[122.013774753,29.96355712],[122.014247522,29.915620561],[122.06927508,29.916020438],[122.068828693,29.963957768],[122.013774753,29.96355712]]]}}]}
Which points to a single file /app/mapfiles/test.geojson:
{"type":"Feature","properties":{},"geometry":{"coordinates":[[[122.04067791363536,29.944772490597998],[122.03620089848994,29.94141730774004],[122.03819740524398,29.937852301951125],[122.0446709271447,29.938166866424368],[122.04648593328471,29.940211511256464],[122.04067791363536,29.944772490597998]]],"type":"Polygon"}}
I would like to define the TILEINDEX as one MapServer Layer and have
another MapServer layer reference that tile index. I tried this layer:
LAYER
NAME "vector_via_ogr"
TYPE POLYGON
TILEINDEX tindex_ogr
CONNECTIONTYPE OGR
STATUS OFF
END
but when I run `mapserv -nh
QUERY_STRING='service=WFS&VERSION=1.0.0&REQUEST=getfeature&map=/app/mapfiles/test2.map&typename=vector_via_ogr&OUTPUTFORMAT=geojson'`,
I get the following error:
"msOGRFileOpen(): OGR error. Open failed for OGR connection in layer
`vector_via_ogr'. File not found or unsupported format. Check server
logs."
If I run without CONNECTIONTYPE OGR, I get the following error:
"msTiledSHPOpenFile(): Shapefile error. Tileindex layer must be a
shapefile."
I can get a similar thing working for a TILEINDEX of rasters. However I
cannot get it working on a TILEINDEX of vectors. The example below is the
simplest reproduce case I could create. Ultimately I plan on having a
TILEINDEX point to a layer of defined via CONNECTIONTYPE postgis.
How do I get a vector tileindex working with another Mapserver layer as the
tileindex?
Thanks!
Pete
Full mapfile below with example commands reproducing my errors.
MAP
OUTPUTFORMAT
NAME "geojson"
DRIVER "OGR/GEOJSON"
MIMETYPE "application/json; subtype=geojson"
FORMATOPTION "STORAGE=memory"
FORMATOPTION "FORM=SIMPLE"
FORMATOPTION "LCO:RFC7946=NO"
FORMATOPTION "FILENAME=result.json"
END
WEB
METADATA
"ows_enable_request" "*"
"wfs_getfeature_formatlist" "ogrgml,geojson"
END
END
CONFIG "MS_ERRORFILE" "stderr"
PROJECTION
"init=epsg:4326"
END
DEBUG 5
# mapserv -nh
QUERY_STRING='service=WFS&VERSION=1.0.0&REQUEST=getfeature&map=/app/mapfiles/test2.map&typename=vector_directly&OUTPUTFORMAT=geojson'
# returns the contents of 'test.geojson'!
LAYER
NAME "vector_directly"
TYPE POLYGON
TILEINDEX "/app/mapfiles/tindex.geojson"
CONNECTIONTYPE OGR
STATUS OFF
END
# mapserv -nh
QUERY_STRING='service=WFS&VERSION=1.0.0&REQUEST=getfeature&map=/app/mapfiles/test2.map&typename=tindex_ogr&OUTPUTFORMAT=geojson'
# returns contents of tindex.geojson!
LAYER
NAME "tindex_ogr"
TYPE POLYGON
CONNECTIONTYPE OGR
CONNECTION "/app/mapfiles/tindex.geojson"
STATUS OFF
END
# mapserv -nh
QUERY_STRING='service=WFS&VERSION=1.0.0&REQUEST=getfeature&map=/app/mapfiles/test2.map&typename=vector_tindex&OUTPUTFORMAT=geojson'
# returns 'msTiledSHPOpenFile(): Shapefile error. Tileindex layer must be
a shapefile.'
LAYER
NAME "vector_via_tindex"
TYPE POLYGON
TILEINDEX tindex_ogr
STATUS OFF
END
# mapserv -nh
QUERY_STRING='service=WFS&VERSION=1.0.0&REQUEST=getfeature&map=/app/mapfiles/test2.map&typename=vector_via_ogr&OUTPUTFORMAT=geojson'
# returns 'msOGRFileOpen(): OGR error. Open failed for OGR connection in
layer `vector_via_ogr'. File not found or unsupported format. Check
server logs.'
LAYER
NAME "vector_via_ogr"
TYPE POLYGON
TILEINDEX tindex_ogr
CONNECTIONTYPE OGR
STATUS OFF
END
END # mapfile
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