[mapserver-users] Can a legend graphic be scaled?

[Basques, Bob (CI-StPaul)]

All,

I would like to be able to scale the symbology in the legend differently from 
the map (about half scale), is there any way to do that?  I played around 
withthe Cip sizing to try and get what I was after, but that wasn’t working out 
quite right.

[http://gis.ci.stpaul.mn.us/datasets/PUBLIC/TRANSPORTATION/STP_CENTERLINE/centerlines_stpaul_public.map?FORMAT=image/png=TRUE=WMS=1.1.1=GetLegendGraphic&_OLSALT=0.24570807258038974=1961.2263630187094=250==all]

Thanks

bobb




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Re: [mapserver-users] MapServer returns a blank image when requesting a square image

[Seth G]

Hi Pablo,

Just to note I also ran into this issue so you are not alone!
A WMS request from OpenLayers to MapServer would be fine, but modifying
the size of the image (WIDTH and HEIGHT parameters) would result in a
blank image and no errors in the logs.I never got a chance to debug further 
though. An error should ideally be
reported somewhere rather than a blank, seemingly valid, image.
Seth

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On Wed, Jan 10, 2018, at 6:46 PM, Pablo Sanfilippo wrote:
> Hi all,
> 
> I admit this is the weirdest issue I have come across. This are the
> relevant parts of my MapServer configuration:> 
> # A valid mapfile used for testing
> MAP
>   NAME valid
>   STATUS ON
>   PROJECTION
> "init=epsg:4326"
>   END
> 
>   IMAGECOLOR 0 0 0
>   TRANSPARENT ON
> 
>   WEB
> METADATA
>   "wms_srs" "EPSG:4326 EPSG:3857"
>   END
>   END
>   
>   LAYER
> NAME "index"
> STATUS ON
> TYPE POLYGON
> CONNECTIONTYPE POSTGIS
> CONNECTION "host=x port=x dbname=x user=x password=x"
> DATA "geometry from (select i.geometry, i.id, '/vsis3/' ||
> i.s3_bucket || '/' || i.s3_key as location from images_image) as
> index using unique id"> CLASS
>   STYLE
> OUTLINECOLOR 0 0 0
> WIDTH 1.0
> COLOR 200 200 200
> ANTIALIAS true
>   END
> END
>   END
> 
>   LAYER
> NAME "images"
> STATUS ON
> TILEINDEX "index"
> TILEITEM "location"
> TYPE RASTER
> PROJECTION
>   AUTO
> END
> METADATA
>   "wms_title"   "Images"
> END
>   END
>   
> 
> END
> 
> The data in the PostGIS index is in EPSG:4326. The images referenced
> by the index are GeoTIFFs georeferenced in EPSG:4326.> 
> A WMS request for the index layer shows the index polygons fine,
> whatever the SRS and image size in the request.> A WMS request for the images 
> layer using SRS=EPSG:4326 shows the
> images fine, whatever the image size.> A WMS request for the images layer 
> using SRS=EPSG:3857 will work fine
> as long as the requested image size's x is greater than or equal to
> the y. If not, it will return a blank (transparent) image. For
> example, a 1300x1299 image will work fine, a 1300x1300 image won't
> work and 1301x1300 won't work either.> 
> Any clues?
> 
> Thanks!
> _
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> https://lists.osgeo.org/mailman/listinfo/mapserver-users

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[mapserver-users] MapServer returns a blank image when requesting a square image

[Pablo Sanfilippo]

Hi all,

I admit this is the weirdest issue I have come across. This are the
relevant parts of my MapServer configuration:

# A valid mapfile used for testing
MAP
  NAME valid
  STATUS ON
  PROJECTION
"init=epsg:4326"
  END

  IMAGECOLOR 0 0 0
  TRANSPARENT ON

  WEB
METADATA
  "wms_srs" "EPSG:4326 EPSG:3857"
  END
  END

  LAYER
NAME "index"
STATUS ON
TYPE POLYGON
CONNECTIONTYPE POSTGIS
CONNECTION "host=x port=x dbname=x user=x password=x"
DATA "geometry from (select i.geometry, i.id, '/vsis3/' || i.s3_bucket
|| '/' || i.s3_key as location from images_image) as index using unique id"
CLASS
  STYLE
OUTLINECOLOR 0 0 0
WIDTH 1.0
COLOR 200 200 200
ANTIALIAS true
  END
END
  END

  LAYER
NAME "images"
STATUS ON
TILEINDEX "index"
TILEITEM "location"
TYPE RASTER
PROJECTION
  AUTO
END
METADATA
  "wms_title"   "Images"
END
  END


END

The data in the PostGIS index is in EPSG:4326. The images referenced by the
index are GeoTIFFs georeferenced in EPSG:4326.

A WMS request for the index layer shows the index polygons fine, whatever
the SRS and image size in the request.
A WMS request for the images layer using SRS=EPSG:4326 shows the images
fine, whatever the image size.
A WMS request for the images layer using SRS=EPSG:3857 will work fine as
long as the requested image size's x is greater than or equal to the y. If
not, it will return a blank (transparent) image. For example, a 1300x1299
image will work fine, a 1300x1300 image won't work and 1301x1300 won't work
either.

Any clues?

Thanks!
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Re: [mapserver-users] How use ogr provider with spatialite "read only" clause

[Eichner, Andreas - SID]

According to msOGRFileOpen(mapogr.cpp:1194):
hDS = OGROpen( pszDSSelectedName, MS_FALSE, NULL );
I would say that MapServer _always_ opens an OGR datasource readonly (See 
http://www.gdal.org/ogr__api_8h.html#a2da3630231780d519543d1679c83e62f ).

> -Original Message-
> From: mapserver-users [mailto:mapserver-users-boun...@lists.osgeo.org]
> On Behalf Of Andrea Peri
> Sent: Wednesday, January 10, 2018 12:29 PM
> To: mapserver-users@lists.osgeo.org
> Subject: [mapserver-users] How use ogr provider with spatialite "read
> only" clause
> 
> Hi,
> 
> Usually we use the spatialite db as ordinary datasource for ours
> mapserver wms.
> 
> 
> Now I discovered that the last versions of spatialite always test
> automatically the version of the DB sqlite and if verify that the db was
> create using an older spatialite version.
> 
> TRY TO UPDATE the spatialite system tables WHEN the connection was
> closed.
> 
> 
> This probably is a good strategy for an ordinary desktop application.
> 
> But more risk pendent when used on a mpaserver that could have more than
> one connection open on the same DB sqlite.
> 
> 
> To avoid this the standard solution used from the spatialite driver is
> to check if the DB is open in READ-ONLY mode.
> 
> 
> And avoid to write and update the db when it is in read-only mode.
> 
> 
> So my trouble now is how the change the usual connection string in the
> mapfile to say to the OGR driver to open the sqlite/spatialite using the
> "read-only" mode.
> 
> Is this possible ?
> 
> 
> Many thx
> 
> 
> A.
> 
> 
> --
> 
> -
> Andrea Peri
> . . . . . . . . .
> qwerty àèìòù
> -
> 
> 

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Re: [mapserver-users] How use ogr provider with spatialite "read only" clause

[Yves Jacolin]

Hello Andrea,

Can't you do that by "chmod" the file?

Y.

2018-01-10 12:28 GMT+01:00 Andrea Peri :

> Hi,
> Usually we use the spatialite db as ordinary datasource for ours mapserver
> wms.
>
> Now I discovered that the last versions of spatialite always test
> automatically the version of the DB sqlite and if verify that the db was
> create using an older spatialite version.
>
> TRY TO UPDATE the spatialite system tables WHEN the connection was closed.
>
> This probably is a good strategy for an ordinary desktop application.
> But more risk pendent when used on a mpaserver that could have more than
> one connection open on the same DB sqlite.
>
> To avoid this the standard solution used from the spatialite driver is to
> check if the DB is open in READ-ONLY mode.
>
> And avoid to write and update the db when it is in read-only mode.
>
> So my trouble now is how the change the usual connection string in the
> mapfile to say to the OGR driver to open the sqlite/spatialite using the
> "read-only" mode.
>
> Is this possible ?
>
> Many thx
>
> A.
>
> --
> -
> Andrea Peri
> . . . . . . . . .
> qwerty àèìòù
> -
>
>
>
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[mapserver-users] How use ogr provider with spatialite "read only" clause

[Andrea Peri]

Hi,
Usually we use the spatialite db as ordinary datasource for ours mapserver
wms.

Now I discovered that the last versions of spatialite always test
automatically the version of the DB sqlite and if verify that the db was
create using an older spatialite version.

TRY TO UPDATE the spatialite system tables WHEN the connection was closed.

This probably is a good strategy for an ordinary desktop application.
But more risk pendent when used on a mpaserver that could have more than
one connection open on the same DB sqlite.

To avoid this the standard solution used from the spatialite driver is to
check if the DB is open in READ-ONLY mode.

And avoid to write and update the db when it is in read-only mode.

So my trouble now is how the change the usual connection string in the
mapfile to say to the OGR driver to open the sqlite/spatialite using the
"read-only" mode.

Is this possible ?

Many thx

A.

-- 
-
Andrea Peri
. . . . . . . . .
qwerty àèìòù
-
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