I'm actually using MapServer 7.1 and it works fine as long as I'm using 4326 to request the tiles (whatever projection the sources of tileindex are in). The problem is when I make the request using 3857 and the height of the image is greater or equal to the width.
On Thu, Jan 11, 2018 at 1:02 PM, Rahkonen Jukka (MML) < jukka.rahko...@maanmittauslaitos.fi> wrote: > Hi, > > > > You can have tileindex in different projection and it can contain images > which are originally in several projections nowadays with in MapServer >= > 6.4. Read http://www.gdal.org/gdaltindex.html and > http://www.mapserver.org/optimization/tileindex.html > > > > -Jukka Rahkonen- > > > > *Lähettäjä:* Pablo Sanfilippo [mailto:sanfilippopa...@gmail.com] > *Lähetetty:* 11. tammikuuta 2018 17:47 > *Vastaanottaja:* Rahkonen Jukka (MML) <jukka.rahko...@maanmittauslaitos.fi > > > *Kopio:* Seth G <se...@geographika.co.uk>; mapserver-users@lists.osgeo.org > > *Aihe:* Re: [mapserver-users] MapServer returns a blank image when > requesting a square image > > > > I'm going to try and make that zip. > > > > About explicit PROJECTION blocks, actually yes. I forgot about mentioning > that. It works fine when explicitly setting the PROJECTION in the raster > layer. However, I can't do that because the files referenced by the > tileindex are in different projections. > > > > On Thu, Jan 11, 2018 at 11:00 AM, Rahkonen Jukka (MML) <jukka.rahkonen@ > maanmittauslaitos.fi> wrote: > > Hi, > > > > I have been using a spatialite layer as a tileindex for years without > problems so definitely that is not a bug that affects all users and use > cases. Try to create a zip file that contains everything that is needed for > reproducing the issue. Let’s hope that you can make it with a spatialite > database and two images in the tileindex. > > > > Have you already tried to add explicit PROJECTION blocks into both LAYERs? > > > > -Jukka Rahkonen- > > > > > > > > *Lähettäjä:* mapserver-users [mailto:mapserver-users- > boun...@lists.osgeo.org] *Puolesta *Pablo Sanfilippo > *Lähetetty:* 11. tammikuuta 2018 14:46 > *Vastaanottaja:* Seth G <se...@geographika.co.uk> > *Kopio:* mapserver-users@lists.osgeo.org > *Aihe:* Re: [mapserver-users] MapServer returns a blank image when > requesting a square image > > > > Oh, so this is a definitely a bug. Is it reported yet in the issue tracker? > > > > On Wed, Jan 10, 2018 at 3:55 PM, Seth G <se...@geographika.co.uk> wrote: > > 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 > > > > -- > > web:http://geographika.co.uk > > twitter: @geographika > > > > > > 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! > > *_______________________________________________* > > 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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