Raivo,
I sometimes get odd artifacts showing up on my PNG24 maps as well. I don't know if it's related to your problem, but I believe mine is client-related based on its behavior, even though it happens on multiple computers and browsers. Every now and then, my map comes out looking like this: https://netfiles.umn.edu/users/emers089/www/imgerror.jpg It doesn't always look the same, sometimes the map is greyed out or covered in mostly black, sometimes only part of the map is affected. Since it's unpredictable and infrequent, I haven't been able to test very much. However, It clears itself immediately when I click anything on the page, or when I resize the browser window. That makes me think that my problem is related to client-side graphics drivers; the correct image is already in the browser, just hidden under the artifacting. I've been meaning to play around with driver updates, but it hasn't been enough of an issue. -Gabe From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rahkonen Jukka Sent: Wednesday, September 17, 2008 7:22 AM To: Raivo Alla; [email protected] Subject: Re: [mapserver-users] mapserver 5 TIFF displaying problem I'm sorry, I fear I can't help you further. I'm sure that somebody else will go on with your problem soon. There must be something odd in the image or in your Mapserver. You could still try two things and try to find exact reason for the failure: - use ready compiled Mapserver if you find such for your operating system - test with another image from different source -Jukka- ________________________________ Lähettäjä: Raivo Alla [mailto:[EMAIL PROTECTED] Lähetetty: 17. syyskuuta 2008 14:57 Vastaanottaja: Rahkonen Jukka Aihe: Re: [mapserver-users] mapserver 5 TIFF displaying problem Hi, thank you but sadly it did'nt help. Changed the DRIVER and translated to GeoTiff, but the problem remained. Even after I changed my .map file projection to EPSG:3301 (same like that .tif file has) was the same picture there. If I zoom in/out, then the picture changes a bit -> http://picasaweb.google.com/snaperski/Ort#5246949911192681730 Strange:) Raivo On Wed, Sep 17, 2008 at 2:27 PM, Rahkonen Jukka <[EMAIL PROTECTED]> wrote: Hi, If all the clients show the same artifacts we can trust they come from the server. For some reason it does not like your original image. Try converting it to uncompressed geotiff image with gdal_translate gdal_translate -of GTiff 54653.tif 54653_basic.tif Make another layer from this new image, or edit your mapfile to use that instead of the original 54653.tif. What happens? By the way, I believe it should read DRIVER "GD/PNG24" -Jukka- ________________________________ Lähettäjä: Raivo Alla [mailto:[EMAIL PROTECTED] Lähetetty: 17. syyskuuta 2008 14:16 Vastaanottaja: Rahkonen Jukka Aihe: Re: [mapserver-users] mapserver 5 TIFF displaying problem Hei, thank you for advice! I changed .map a bit: IMAGETYPE png24 OUTPUTFORMAT NAME png24 DRIVER "GD/PNG" MIMETYPE "image/png" IMAGEMODE RGBA EXTENSION "png" END output quality looks better, but that black-lined crap is still there:( I tried the same with uDig and Gaia WMS-clients, but it's the same. Raivo On Wed, Sep 17, 2008 at 1:51 PM, Rahkonen Jukka <[EMAIL PROTECTED]> wrote: Hi, It's getting closer. Image is now at least in a correct place? Distortion can be due to ArcMAP, perhaps it does not like the outputformat you are using. Next trials: - Have a try with another client software. like Quantum GIS, OpenJUMP, Cadcorp SIS map browser, or just your web browser. - Try changing outputformat. I believe you will need to change it anyway, png is not good for aerial images. Try png24 or jpeg instead. -Jukka- ________________________________ Lähettäjä: Raivo Alla [mailto:[EMAIL PROTECTED] Lähetetty: 17. syyskuuta 2008 13:43 Vastaanottaja: Rahkonen Jukka Aihe: Re: [mapserver-users] mapserver 5 TIFF displaying problem Thank you, I added PROJECTION block to the layer, but unfortunately the same dance: output is corrupted as it could be seen here: http://picasaweb.google.com/snaperski/Ort#5246933992333025954 Maybe I should compile mapserver without -with-tiff key? Raivo On Wed, Sep 17, 2008 at 1:03 PM, Rahkonen Jukka <[EMAIL PROTECTED]> wrote: Tere. You have defined the output projection as epsg:4326 and by quick look it is OK in both map projection and WMS metadata. However, your original image is in Estonian projection, but Mapserver does not know it automatically. You need to add PROJECTION block to layer definitions as well. Try editin your mapfile as follows: LAYER TYPE RASTER NAME "raster" STATUS ON DATA "54653.tif" PROJECTION "init=epsg:3301" END #end projection END #end layer I hope I guessed the epsg code right. -Jukka Rahkonen- ________________________________ Lähettäjä: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Puolesta Raivo Alla Lähetetty: 17. syyskuuta 2008 12:51 Vastaanottaja: [email protected] Aihe: Re: [mapserver-users] mapserver 5 TIFF displaying problem Thank you for answering! There's some additional information. Gdalinfo output: Driver: GTiff/GeoTIFF Files: 65812.tif 65812.aux Size is 5000, 5000 Coordinate System is: LOCAL_CS["Estonia_1997_Estonia_National_Grid", UNIT["meters",1]] Origin = (715000.500000000000000,6584999.500000000000000) Pixel Size = (1.000000000000000,-1.000000000000000) Metadata: TIFFTAG_XRESOLUTION=2272.0896 TIFFTAG_YRESOLUTION=2272.0896 TIFFTAG_RESOLUTIONUNIT=2 (pixels/inch) Image Structure Metadata: COMPRESSION=LZW INTERLEAVE=PIXEL Corner Coordinates: Upper Left ( 715000.500, 6584999.500) Lower Left ( 715000.500, 6579999.500) Upper Right ( 720000.500, 6584999.500) Lower Right ( 720000.500, 6579999.500) Center ( 717500.500, 6582499.500) Band 1 Block=5000x8 Type=Byte, ColorInterp=Red Metadata: LAYER_TYPE=athematic Band 2 Block=5000x8 Type=Byte, ColorInterp=Green Metadata: LAYER_TYPE=athematic Band 3 Block=5000x8 Type=Byte, ColorInterp=Blue Metadata: LAYER_TYPE=athematic And from .map file: IMAGETYPE PNG OUTPUTFORMAT NAME png DRIVER "GD/PNG" MIMETYPE "image/png" IMAGEMODE RGB END PROJECTION "init=epsg:4326" END METADATA WMS_TITLE "UMN MapServer Maa-ameti TEST" WMS_ABSTRACT "Mõeldud testimiseks" WMS_ACCESSCONSTRAINTS "none" WMS_SRS "EPSG:4326" END Could it be problem that coordinate systems does not match? However, I remember it's written that Mapserver could do SRS transforming on-the-fly. On Wed, Sep 17, 2008 at 11:23 AM, Rahkonen Jukka <[EMAIL PROTECTED]> wrote: Hi, Impossible to say with this information. Much better possibilities to help you if you could send also the main MAP part of your mapfile including at lesast outputformat and projection, and the metadata sections. Gdalinfo report about the image might be helpful as well. -Jukka Rahkonen- ________________________________ Lähettäjä: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Puolesta Raivo Alla Lähetetty: 17. syyskuuta 2008 9:38 Vastaanottaja: [email protected] Aihe: [mapserver-users] mapserver 5 TIFF displaying problem Hello, I'm quite new using Mapserver and found myself struggling with this simple-looking problem: In my map file, there is layer defined as follows: LAYER TYPE RASTER NAME "raster" STATUS ON DATA "54653.tif" END The problem is, that this image is corrupted when I look at it in ArcMap - it contains strange black boxes and stripes. Original image is OK, so I guess the problem is somewhere in map file. .tfw file should be ok: 1.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 650000.500000000000000 6469999.500000000000000 What could be the problem? Raivo Alla
_______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
