Re: [mapserver-users] accessing different band values in the same layer
Helen, It does not appear that you can. Based on the docs Raster classifications always take place on only one raster band. It defaults to the first band in the referenced file, but this can be altered with the BANDS PROCESSING directive. In particular this means that including even a single CLASS declaration in a raster layer will result in the raster layer being rendered using the one band classification rules instead of other rules that might have applied (such as 3 band RGB rendering). http://mapserver.org/input/raster.html You could have multiple layers and do classification on each band by changing the first value in the PROCESSING BANDS directive. Mike On 6/14/12 8:27 AM, Helen San Segundo Navazo hsansegu...@meteo.cat wrote: Hi, I have a raster file with different bands inside it. when I create my mapfile inside the layer tag I can define the bands I want to access with PROCESSING BANDS=4,2,1 When I select 1 band I can access to its data using the EXPRESSION tag: CLASS NAME 0 - 5 EXPRESSION ([pixel] = 0 AND [pixel] 5) STYLE COLOR 80 0 0 END END But if I select more than one band, how can I do to acces to the different band values inside the same EXPRESSION tag? is it possible? The problem is that I have wind information in different bands, in one band I have speed and in other band I have direction, and I have to draw the wind symbol depending on both values. Is possible to acces to the different pixel band values inside the same EXPRESSION tag? Thanks, Helen ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] accessing different band values in the same layer
ok, thanks Mike. A solution could be to transform the raster in a shape file, and to put the different band values in different attributes of each element, and then use the attributes values for selecting symbol and angle. Thanks, Helen El 14/06/12 15:03, Smith, Michael ERDC-RDE-CRREL-NH escribió: Helen, It does not appear that you can. Based on the docs Raster classifications always take place on only one raster band. It defaults to the first band in the referenced file, but this can be altered with the BANDS PROCESSING directive. In particular this means that including even a single CLASS declaration in a raster layer will result in the raster layer being rendered using the one band classification rules instead of other rules that might have applied (such as 3 band RGB rendering). http://mapserver.org/input/raster.html You could have multiple layers and do classification on each band by changing the first value in the PROCESSING BANDS directive. Mike On 6/14/12 8:27 AM, Helen San Segundo Navazohsansegu...@meteo.cat wrote: Hi, I have a raster file with different bands inside it. when I create my mapfile inside the layer tag I can define the bands I want to access with PROCESSING BANDS=4,2,1 When I select 1 band I can access to its data using the EXPRESSION tag: CLASS NAME 0 - 5 EXPRESSION ([pixel]= 0 AND [pixel] 5) STYLE COLOR 80 0 0 END END But if I select more than one band, how can I do to acces to the different band values inside the same EXPRESSION tag? is it possible? The problem is that I have wind information in different bands, in one band I have speed and in other band I have direction, and I have to draw the wind symbol depending on both values. Is possible to acces to the different pixel band values inside the same EXPRESSION tag? Thanks, Helen ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] accessing different band values in the same layer
Helen, have you had a look at http://mapserver.org/trunk/input/vector/vector_field.html (to be released in 6.2, but should be functional already) -- thomas On Thu, Jun 14, 2012 at 3:21 PM, Helen San Segundo Navazo hsansegu...@meteo.cat wrote: ok, thanks Mike. A solution could be to transform the raster in a shape file, and to put the different band values in different attributes of each element, and then use the attributes values for selecting symbol and angle. Thanks, Helen El 14/06/12 15:03, Smith, Michael ERDC-RDE-CRREL-NH escribió: Helen, It does not appear that you can. Based on the docs Raster classifications always take place on only one raster band. It defaults to the first band in the referenced file, but this can be altered with the BANDS PROCESSING directive. In particular this means that including even a single CLASS declaration in a raster layer will result in the raster layer being rendered using the one band classification rules instead of other rules that might have applied (such as 3 band RGB rendering). http://mapserver.org/input/raster.html You could have multiple layers and do classification on each band by changing the first value in the PROCESSING BANDS directive. Mike On 6/14/12 8:27 AM, Helen San Segundo Navazohsansegu...@meteo.cat wrote: Hi, I have a raster file with different bands inside it. when I create my mapfile inside the layer tag I can define the bands I want to access with PROCESSING BANDS=4,2,1 When I select 1 band I can access to its data using the EXPRESSION tag: CLASS NAME 0 - 5 EXPRESSION ([pixel]= 0 AND [pixel] 5) STYLE COLOR 80 0 0 END END But if I select more than one band, how can I do to acces to the different band values inside the same EXPRESSION tag? is it possible? The problem is that I have wind information in different bands, in one band I have speed and in other band I have direction, and I have to draw the wind symbol depending on both values. Is possible to acces to the different pixel band values inside the same EXPRESSION tag? Thanks, Helen ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Projection
Hello, currently I am working on a map displaying the distiribution of a name (surname/forename/location name) in Germany. For that purpose mapserver (v. 5.6.5) and php-mapscript is used. The underlying geographic information is from a public domain shapefile containing postcode (PLZ) regions of germany: http://www.metaspatial.net/download/plz.tar.gz Details on that data in german: http://arnulf.us/PLZ There the data is described as originally been in Gauß Krüger 3-Streifen, but the shapefile's data as beeing converted to EPSG:4326 (WGS84). The map should be rendered so that the width and height of germany are more or less like here: http://de.wikipedia.org/wiki/Datei:Deutschland_politisch_2010.png Without configured projections it looks like: https://www.dropbox.com/s/n1uobhd12xhsf4u/1ee63112dc71c15f1247994883aebc42.png So some projection is needed. One question is, what projection would be appropriate, I suppose something like Alber's equal area or Gauß-Krüger zone 3 could do the trick. But before that I would be glad if an arbitrary projection would work at all... The map-file as generated via mapscript looks like (cut to the relevant part, as far as I understand it): MAP EXTENT 5.05686874304783 47.2 15.5931312569522 55.1 IMAGECOLOR 255 255 255 IMAGETYPE gif SIZE 1200 900 STATUS ON CONFIG PROJ_LIB /usr/share/proj/ NAME Germany PROJECTION init=epsg:2166 END LAYER NAME 0 PROJECTION init=epsg:4326 END STATUS DEFAULT TYPE POLYGON UNITS METERS CLASS NAME PLZ STYLE ANGLE 360 COLOR 99 99 99 OUTLINECOLOR 0 0 0 SYMBOL 0 WIDTH 1 END END END END With this map-file the PLZ layer is not displayed. If omitting the PROJECTION-section within the LAYER it is displayed. For reference: the whole zipped mapfile, containing the data: https://www.dropbox.com/s/sd65gc7dch7swh3/projection.complete.map.zip So: - What to do, to get projections working? - What kind of projection would be appropriate? Hints are most welcome. Kind regards, Thomas Hofmann ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Map Not Available at This Scale Image
Hi list, I have a number of layers that are on or off depending on the zoom level and some of those layers do not have coverage in certain areas. The question is, is there a way to display a map image saying something along the lines of, Map not available at this level? I think I have read somewhere that it can be done in a round about way but I cannot find any information after having a good internet trawl. Many thanks. Regards, Donald ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Projection
Your map extent should something like this EXTENT 3186000 521 4006000 6156000 PROJECTION init=epsg:2166 #or init=epsg:31467 END then your layer should show. Instead of Gauss-Krüger i would take EPSG:25832 (UTM32). It's the new official used projection for Germany . The layer will look the same as GK3. Arnd In Deutschland hat die Arbeitsgemeinschaft der Vermessungsverwaltungen der Länder der Bundesrepublik Deutschland (AdV) im Jahre 1991 die Einführung des ETRS89 als einheitliches amtliches Lagebezugssystem für ganz Deutschland beschlossen. (Quelle:http://de.wikipedia.org/wiki/Europ%C3%A4isches_Terrestrisches_Refere nzsystem_1989) -Ursprüngliche Nachricht- Von: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] Im Auftrag von Thomas Hofmann Gesendet: Donnerstag, 14. Juni 2012 16:39 An: mapserver-users@lists.osgeo.org Betreff: [mapserver-users] Projection Hello, currently I am working on a map displaying the distiribution of a name (surname/forename/location name) in Germany. For that purpose mapserver (v. 5.6.5) and php-mapscript is used. The underlying geographic information is from a public domain shapefile containing postcode (PLZ) regions of germany: http://www.metaspatial.net/download/plz.tar.gz Details on that data in german: http://arnulf.us/PLZ There the data is described as originally been in Gauß Krüger 3-Streifen, but the shapefile's data as beeing converted to EPSG:4326 (WGS84). The map should be rendered so that the width and height of germany are more or less like here: http://de.wikipedia.org/wiki/Datei:Deutschland_politisch_2010.png Without configured projections it looks like: https://www.dropbox.com/s/n1uobhd12xhsf4u/1ee63112dc71c15f1247994883aebc42.p ng So some projection is needed. One question is, what projection would be appropriate, I suppose something like Alber's equal area or Gauß-Krüger zone 3 could do the trick. But before that I would be glad if an arbitrary projection would work at all... The map-file as generated via mapscript looks like (cut to the relevant part, as far as I understand it): MAP EXTENT 5.05686874304783 47.2 15.5931312569522 55.1 IMAGECOLOR 255 255 255 IMAGETYPE gif SIZE 1200 900 STATUS ON CONFIG PROJ_LIB /usr/share/proj/ NAME Germany PROJECTION init=epsg:2166 END LAYER NAME 0 PROJECTION init=epsg:4326 END STATUS DEFAULT TYPE POLYGON UNITS METERS CLASS NAME PLZ STYLE ANGLE 360 COLOR 99 99 99 OUTLINECOLOR 0 0 0 SYMBOL 0 WIDTH 1 END END END END With this map-file the PLZ layer is not displayed. If omitting the PROJECTION-section within the LAYER it is displayed. For reference: the whole zipped mapfile, containing the data: https://www.dropbox.com/s/sd65gc7dch7swh3/projection.complete.map.zip So: - What to do, to get projections working? - What kind of projection would be appropriate? Hints are most welcome. Kind regards, Thomas Hofmann ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Map Not Available at This Scale Image
Steve, I don't think that any of those options will work for me. I have fifteen zoom levels and the map coverage is complete except for three. Those three are a made up of an image returned after querying PostGIS so a blank image is effectively created since there are no points, lines or polygons returned from the PostGIS query at that zoom level i.e. to all intents and purposes, a valid map is returned except that there's noting in it. It's these particular zoom levels where I am trying to display the no coverage' message. I had thought that it may be possible to create a permanent layer that's always there under all the layers and is effectively overwritten by any drawn layers above except where there's no data. I'm thinking now that this may not be possible. Many thanks. Regards, Donald -Original Message- From: Lime, Steve D (DNR) [mailto:steve.l...@state.mn.us] Sent: 14 June 2012 21:54 To: Donald Kerr; 'MAPSERVER USERS' Subject: RE: [mapserver-users] Map Not Available at This Scale Image Couple of options. 1) You can create a layer that displays that text in the middle of the map and have it turn on below a certain scale. If doing tiling w/meta-tiling you'd want draw the text the same number of times as you have meta-tiles. That would take some mucking about but it's doable. 2) There's a little used parameter in the WEB section called MINTEMPATE/MAXTEMPLATE. MapServer will redirect to the URL specified depending on scale. It's been ages since I used it but in theory you could reference an image with the necessary text by URL. Steve From: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Donald Kerr Sent: Thursday, June 14, 2012 1:42 PM To: 'MAPSERVER USERS' Subject: [mapserver-users] Map Not Available at This Scale Image Hi list, I have a number of layers that are on or off depending on the zoom level and some of those layers do not have coverage in certain areas. The question is, is there a way to display a map image saying something along the lines of, Map not available at this level? I think I have read somewhere that it can be done in a round about way but I cannot find any information after having a good internet trawl. Many thanks. Regards, Donald ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Map Not Available at This Scale Image
Why not a layer with STATUS DEFAULT but a MAXSCALE value that kicks in when your other data runs out? From: Donald Kerr [mailto:donald.k...@dkerr.co.uk] Sent: Thursday, June 14, 2012 4:07 PM To: Lime, Steve D (DNR); 'MAPSERVER USERS' Subject: RE: [mapserver-users] Map Not Available at This Scale Image Steve, I don't think that any of those options will work for me. I have fifteen zoom levels and the map coverage is complete except for three. Those three are a made up of an image returned after querying PostGIS so a blank image is effectively created since there are no points, lines or polygons returned from the PostGIS query at that zoom level i.e. to all intents and purposes, a valid map is returned except that there's noting in it. It's these particular zoom levels where I am trying to display the no coverage' message. I had thought that it may be possible to create a permanent layer that's always there under all the layers and is effectively overwritten by any drawn layers above except where there's no data. I'm thinking now that this may not be possible. Many thanks. Regards, Donald -Original Message- From: Lime, Steve D (DNR) [mailto:steve.l...@state.mn.us] Sent: 14 June 2012 21:54 To: Donald Kerr; 'MAPSERVER USERS' Subject: RE: [mapserver-users] Map Not Available at This Scale Image Couple of options. 1) You can create a layer that displays that text in the middle of the map and have it turn on below a certain scale. If doing tiling w/meta-tiling you'd want draw the text the same number of times as you have meta-tiles. That would take some mucking about but it's doable. 2) There's a little used parameter in the WEB section called MINTEMPATE/MAXTEMPLATE. MapServer will redirect to the URL specified depending on scale. It's been ages since I used it but in theory you could reference an image with the necessary text by URL. Steve From: mapserver-users-boun...@lists.osgeo.orgmailto:mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Donald Kerr Sent: Thursday, June 14, 2012 1:42 PM To: 'MAPSERVER USERS' Subject: [mapserver-users] Map Not Available at This Scale Image Hi list, I have a number of layers that are on or off depending on the zoom level and some of those layers do not have coverage in certain areas. The question is, is there a way to display a map image saying something along the lines of, Map not available at this level? I think I have read somewhere that it can be done in a round about way but I cannot find any information after having a good internet trawl. Many thanks. Regards, Donald ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Map Not Available at This Scale Image
Steve, MAXSCALEDENOM? (MAXSCALE deprecated?) - Will look into the options in the morning ... time for ... it's 23:23! Cheers. Donald -Original Message- From: Lime, Steve D (DNR) [mailto:steve.l...@state.mn.us] Sent: 14 June 2012 23:16 To: Donald Kerr; 'MAPSERVER USERS' Subject: RE: [mapserver-users] Map Not Available at This Scale Image Why not a layer with STATUS DEFAULT but a MAXSCALE value that kicks in when your other data runs out? From: Donald Kerr [mailto:donald.k...@dkerr.co.uk] Sent: Thursday, June 14, 2012 4:07 PM To: Lime, Steve D (DNR); 'MAPSERVER USERS' Subject: RE: [mapserver-users] Map Not Available at This Scale Image Steve, I don't think that any of those options will work for me. I have fifteen zoom levels and the map coverage is complete except for three. Those three are a made up of an image returned after querying PostGIS so a blank image is effectively created since there are no points, lines or polygons returned from the PostGIS query at that zoom level i.e. to all intents and purposes, a valid map is returned except that there's noting in it. It's these particular zoom levels where I am trying to display the no coverage' message. I had thought that it may be possible to create a permanent layer that's always there under all the layers and is effectively overwritten by any drawn layers above except where there's no data. I'm thinking now that this may not be possible. Many thanks. Regards, Donald -Original Message- From: Lime, Steve D (DNR) [mailto:steve.l...@state.mn.us] Sent: 14 June 2012 21:54 To: Donald Kerr; 'MAPSERVER USERS' Subject: RE: [mapserver-users] Map Not Available at This Scale Image Couple of options. 1) You can create a layer that displays that text in the middle of the map and have it turn on below a certain scale. If doing tiling w/meta-tiling you'd want draw the text the same number of times as you have meta-tiles. That would take some mucking about but it's doable. 2) There's a little used parameter in the WEB section called MINTEMPATE/MAXTEMPLATE. MapServer will redirect to the URL specified depending on scale. It's been ages since I used it but in theory you could reference an image with the necessary text by URL. Steve From: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Donald Kerr Sent: Thursday, June 14, 2012 1:42 PM To: 'MAPSERVER USERS' Subject: [mapserver-users] Map Not Available at This Scale Image Hi list, I have a number of layers that are on or off depending on the zoom level and some of those layers do not have coverage in certain areas. The question is, is there a way to display a map image saying something along the lines of, Map not available at this level? I think I have read somewhere that it can be done in a round about way but I cannot find any information after having a good internet trawl. Many thanks. Regards, Donald ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
