Re: [MAPSERVER-USERS] Mapserver bug when generating a tiled map with MapFish
Unfortunately there is no connection to internet on the platform I develop on. All is done localy. I will try to be more precise. I am trying to display a shapefile representing the whole world (it's a shapefile from Global Insight plus if it helps). I use mapfish without 'singleTile: true' so the layer is generated by tiles. There is no problem in the beggining when the map is zoomed to max extent. The problem occurs when I begin zooming in and trying to display America/Asia. One of the "colums" of tiles is drawn across the -180°/+180° longitude line, and those tiles are generated entirely blank (white, not even transparent). When I get the properties of the image (right-click on the blank tile -> Properties) and I search in the "Location" of the image I can find : mapext=179.296875+44.296875+*225.703125* +90.703125&imgext=179.296875+44.296875+*225.703125*+90.703125 So I guess the problem comes from that, MapServer doesn't recognise longitude greater than 180 or lower than -180. If I'm right I would appreciate any hint on how to handle this... Otherwise it may be a mapfish issue, maybe mapfish should always generate tiles with borders right on -180 / +180. This is the case at the beggining, lef tile has mapext=90+0+180+90 and right tile has mapext=-180+0+-90+90. But whenever I begin zooming in it goes awry, the border of tiles is no longer right on -180/+180 and some tiles are generated white by MapServer. If someone needs more informations I'm ready to give it. Best regards, PB 2008/8/6 Eric Lemoine <[EMAIL PROTECTED]> > On Wed, Aug 6, 2008 at 2:28 PM, Pierre-Benoit Besse <[EMAIL PROTECTED]> > wrote: > > Isn't there anyone to help me with this ? > > > > 2008/8/4 Faldor <[EMAIL PROTECTED]> > >> > >> Hi all, > >> > >> I use Mapserver with mapfish for the client side to display shapefiles > >> which > >> I generated using ogr2ogr. > >> > >> The problem is when I try to display a tiled layer (mapfish singleTile > >> property set to 'false'). Some tiles are generated by mapserver entirely > >> blank ! > >> > >> After a few researches I think it is due to the fact that those tiles > are > >> extended "across" the -180°/+180° line. > >> For exemple, here is the imgext property from one of the calls to > >> MapServer > >> which render a blank tile : > >> imgext=178.59375+-1.40625+271.40625+91.40625 > >> > >> Do you know of a way to fix this ? > > This is not enough information for anyone to help you. Could you > provide a link or a web page to help people see what's going on? > > -- > Eric > ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [MAPSERVER-USERS] Mapserver bug when generating a tiled map with MapFish
Isn't there anyone to help me with this ? 2008/8/4 Faldor <[EMAIL PROTECTED]> > > Hi all, > > I use Mapserver with mapfish for the client side to display shapefiles > which > I generated using ogr2ogr. > > The problem is when I try to display a tiled layer (mapfish singleTile > property set to 'false'). Some tiles are generated by mapserver entirely > blank ! > > After a few researches I think it is due to the fact that those tiles are > extended "across" the -180°/+180° line. > For exemple, here is the imgext property from one of the calls to MapServer > which render a blank tile : > imgext=178.59375+-1.40625+271.40625+91.40625 > > Do you know of a way to fix this ? > > Regards, > > Pierre-Benoît > -- > View this message in context: > http://www.nabble.com/Mapserver-bug-when-generating-a-tiled-map-with-MapFish-tp18813432p18813432.html > Sent from the Mapserver - User mailing list archive at Nabble.com. > > ___ > 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] Mapserver on Solaris 2.10
Thank you for your answers and for the build guide Faldor 2008/6/5 Schlagel, Joel D IWR <[EMAIL PROTECTED]>: > > We are using mapserver on Sparc in a production environment with no > problems- > > > joel > > > > Joel Schlagel > Institute for Water Resources > > [EMAIL PROTECTED] > 1.603.646.4387 > > > > > -Original Message- > From: [EMAIL PROTECTED] on behalf of Nolte, Tim > Sent: Thu 6/5/2008 8:14 AM > To: Faldor; mapserver-users@lists.osgeo.org > Subject: RE: [MAPSERVER-USERS] Mapserver on Solaris 2.10 > > I can safely say that I have successfully compiled MapServer 5.x on > both. We are currently running a production MapServer on Solaris 10 x86. > I'm attaching my build guide for Solaris. > > - Tim > > > Timothy J Nolte - [EMAIL PROTECTED] > Network Planning Engineer > > iPCS Wireless, Inc. > 4717 Broadmoor Ave, Suite G > Kentwood, MI 49512 > > Office: 616-656-5163 > PCS:616-706-2438 > Fax:616-554-6484 > Web: www.ipcswirelessinc.com > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]<[EMAIL PROTECTED]>] > On Behalf Of Faldor > Sent: Thursday, June 05, 2008 6:00 AM > To: mapserver-users@lists.osgeo.org > Subject: [MAPSERVER-USERS] Mapserver on Solaris 2.10 > > > Hi all, > > I have to ensure that Mapserver can be built and run on Solaris 2.10 and > 2.8 > Do you know of any issues concerning those versions ? > > Regards, > > Faldor > -- > View this message in context: > http://www.nabble.com/Mapserver-on-Solaris-2.10-tp17666380p17666380.html > Sent from the Mapserver - User mailing list archive at Nabble.com. > > ___ > 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] Displaying population density with Mapserver
ALRIGHT !! It was a noob mistake indeed, I did not specify UNITS in the MAP object. In fact I thought Mapserver could know it from the shapefile. Thank you very much, it works fine now :) Faldor 2008/5/29 Fawcett, David <[EMAIL PROTECTED]>: > MapServer should do the conversion on the fly, my point was just that > MapServer needs to know what SRS (and units) that the data is in, so it can > make the translation. > > Can you post the text of your map file? > > David. > > -Original Message----- > *From:* Pierre-Benoit Besse [mailto:[EMAIL PROTECTED] > *Sent:* Thursday, May 29, 2008 2:51 AM > *To:* Fawcett, David > *Cc:* mapserver-users@lists.osgeo.org > *Subject:* Re: [MAPSERVER-USERS] Displaying population density with > Mapserver > > Hi David, > > I tried WGS84 yesterday after a little research on projection, but it > didn't change anything. > I tried re-generating the shapefile with WGS84 projection but it's still > the same. > In fact, my data comes from GPW v3 ( > http://sedac.ciesin.columbia.edu/gpw/global.jsp) but I didn't find any > clue on the projection used, I suppose there is none as you say. > > When you speak about translating ground units, do you mean I have to > translate my shapefile from degrees to, say, kilometers before I can use > SIZEUNITS kilometers ? I thought it could be done dynamically by MapServer. > I found a tutorial about this, I will try it anyway (assuming my data is > WGS84) and give you the outcome :) > > I attached my mapfile this time, just in case I made a noob mistake > somewhere... > > thank you very much ! > > Faldor > > 2008/5/28 Fawcett, David <[EMAIL PROTECTED]>: > >> Faldor, >> >> When you have point coordinates stored in a text file, there really is >> no way to encode/attach the projection definition. Even if you could, >> it doesn't sound like you really know what spatial reference system >> (SRS) or projection that it is in. The key to projecting to another SRS >> or translating ground units to another measure (from degrees to meters) >> is knowing what the current SRS of the data is. >> >> Since your data is worldwide and it is unprojected (lat/lon), a good >> first guess would be to assume that it is unprojected with using the >> WGS84. >> >> Try defining your layer projection by including this block in your layer >> definition. >> >> PROJECTION >> "init=epsg:4326" >> END >> >> David. >> >> -Original Message- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of >> Pierre-Benoit Besse >> Sent: Wednesday, May 28, 2008 4:11 AM >> To: Fawcett, David >> Cc: mapserver-users@lists.osgeo.org >> Subject: Re: [MAPSERVER-USERS] Displaying population density with >> Mapserver >> >> >> Well, I confess, I'm new to GIS applications and I do not know a lot >> about projections. >> I understand I have to tell MapServer what is the projection of each >> layer I use in the mapfile, but using ogrinfo on my shapefiles tells me >> that : >> >> Layer name: pop_density >> Geometry: Point >> Feature Count: 249937 >> Extent: (-180.00, -56.00) - (179.75, 83.50) >> Layer SRS WKT: >> (unknown) >> latitude: Real (24.15) >> longitude: Real (24.15) >> densite: Real (24.15) >> >> I generated this shapefile from a CSV file with 3 columns : latitude, >> longitude, density_value. >> Did I have to define a projection then ? How do I do that ? >> >> Best regards, >> >> Faldor >> >> >> 2008/5/27 Fawcett, David <[EMAIL PROTECTED]>: >> >> Have you defined an output projection for your map and input projections >> for each of your layers? It is likely that MapServer needs to know what >> the input projection/SRS is before it can translate to different units. >> >> David. >> -Original Message- >> From: Pierre-Benoit Besse [mailto:[EMAIL PROTECTED] >> Sent: Tuesday, May 27, 2008 11:26 AM >> To: Fawcett, David >> Cc: Ritesh Ambastha; mapserver-users@lists.osgeo.org >> Subject: Re: [MAPSERVER-USERS] Displaying population density with >> Mapserver >> >> >> Ha, well, I prefer that :) I would need a lot of layer definitions to >> obtain something ok... >> >> But I just tried the "ground units" stuff, I tried with a 50 kilometers >> wide square and it drew squares the size of ASIA !! oO >> I had to define a 1 feet wide square to obtain something more or less >> ok... >> Does any
Re: [MAPSERVER-USERS] Displaying population density with Mapserver
Hi David, I tried WGS84 yesterday after a little research on projection, but it didn't change anything. I tried re-generating the shapefile with WGS84 projection but it's still the same. In fact, my data comes from GPW v3 ( http://sedac.ciesin.columbia.edu/gpw/global.jsp) but I didn't find any clue on the projection used, I suppose there is none as you say. When you speak about translating ground units, do you mean I have to translate my shapefile from degrees to, say, kilometers before I can use SIZEUNITS kilometers ? I thought it could be done dynamically by MapServer. I found a tutorial about this, I will try it anyway (assuming my data is WGS84) and give you the outcome :) I attached my mapfile this time, just in case I made a noob mistake somewhere... thank you very much ! Faldor 2008/5/28 Fawcett, David <[EMAIL PROTECTED]>: > Faldor, > > When you have point coordinates stored in a text file, there really is > no way to encode/attach the projection definition. Even if you could, > it doesn't sound like you really know what spatial reference system > (SRS) or projection that it is in. The key to projecting to another SRS > or translating ground units to another measure (from degrees to meters) > is knowing what the current SRS of the data is. > > Since your data is worldwide and it is unprojected (lat/lon), a good > first guess would be to assume that it is unprojected with using the > WGS84. > > Try defining your layer projection by including this block in your layer > definition. > > PROJECTION > "init=epsg:4326" > END > > David. > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Pierre-Benoit Besse > Sent: Wednesday, May 28, 2008 4:11 AM > To: Fawcett, David > Cc: mapserver-users@lists.osgeo.org > Subject: Re: [MAPSERVER-USERS] Displaying population density with > Mapserver > > > Well, I confess, I'm new to GIS applications and I do not know a lot > about projections. > I understand I have to tell MapServer what is the projection of each > layer I use in the mapfile, but using ogrinfo on my shapefiles tells me > that : > > Layer name: pop_density > Geometry: Point > Feature Count: 249937 > Extent: (-180.00, -56.00) - (179.75, 83.50) > Layer SRS WKT: > (unknown) > latitude: Real (24.15) > longitude: Real (24.15) > densite: Real (24.15) > > I generated this shapefile from a CSV file with 3 columns : latitude, > longitude, density_value. > Did I have to define a projection then ? How do I do that ? > > Best regards, > > Faldor > > > 2008/5/27 Fawcett, David <[EMAIL PROTECTED]>: > > Have you defined an output projection for your map and input projections > for each of your layers? It is likely that MapServer needs to know what > the input projection/SRS is before it can translate to different units. > > David. > -Original Message- > From: Pierre-Benoit Besse [mailto:[EMAIL PROTECTED] > Sent: Tuesday, May 27, 2008 11:26 AM > To: Fawcett, David > Cc: Ritesh Ambastha; mapserver-users@lists.osgeo.org > Subject: Re: [MAPSERVER-USERS] Displaying population density with > Mapserver > > > Ha, well, I prefer that :) I would need a lot of layer definitions to > obtain something ok... > > But I just tried the "ground units" stuff, I tried with a 50 kilometers > wide square and it drew squares the size of ASIA !! oO > I had to define a 1 feet wide square to obtain something more or less > ok... > Does anybody know why ? > > Aside from that It seems to work, thank you ! > > I will try the scalesymbol stuff tomorrow. > > Regards > > > > 2008/5/27 Fawcett, David <[EMAIL PROTECTED]>: > > Before you create lots of different layers to simulate symbol scaling, > you may want to try something else. It has been a long time since I > have played with scaled symbols, but give it a try. > > You should be able to scale the symbols by setting a SYMBOLSCALE in the > LAYER object. This is the scale at which you want the symbol to appear > at the SIZE stated in the map file. > > You may want to modify STYLE MAXSIZE if you think that you will want > your symbols to be larger than 50 pixels. > > Another completely different approach that just came to my mind would be > to use ground units (e.g. meters) to set the size of your symbol. To do > this, set LAYER SIZEUNITS to meters. Calculate the size of a symbol in > meters on the ground that will touch adjacent symbols, or give you the > desired amount of space between the symbols. That way, the symbols > should scale consistently. > > David. > > > -Original Message- > From: [EMAIL P
Re: [MAPSERVER-USERS] Displaying population density with Mapserver
Well, I confess, I'm new to GIS applications and I do not know a lot about projections. I understand I have to tell MapServer what is the projection of each layer I use in the mapfile, but using ogrinfo on my shapefiles tells me that : Layer name: pop_density Geometry: Point Feature Count: 249937 Extent: (-180.00, -56.00) - (179.75, 83.50) *Layer SRS WKT: (unknown)* latitude: Real (24.15) longitude: Real (24.15) densite: Real (24.15) I generated this shapefile from a CSV file with 3 columns : latitude, longitude, density_value. Did I have to define a projection then ? How do I do that ? Best regards, Faldor 2008/5/27 Fawcett, David <[EMAIL PROTECTED]>: > Have you defined an output projection for your map and input projections > for each of your layers? It is likely that MapServer needs to know what the > input projection/SRS is before it can translate to different units. > > David. > > -Original Message----- > *From:* Pierre-Benoit Besse [mailto:[EMAIL PROTECTED] > *Sent:* Tuesday, May 27, 2008 11:26 AM > *To:* Fawcett, David > *Cc:* Ritesh Ambastha; mapserver-users@lists.osgeo.org > *Subject:* Re: [MAPSERVER-USERS] Displaying population density with > Mapserver > > Ha, well, I prefer that :) I would need a lot of layer definitions to > obtain something ok... > > But I just tried the "ground units" stuff, I tried with a 50 kilometers > wide square and it drew squares the size of ASIA !! oO > I had to define a 1 feet wide square to obtain something more or less ok... > Does anybody know why ? > > Aside from that It seems to work, thank you ! > > I will try the scalesymbol stuff tomorrow. > > Regards > > > 2008/5/27 Fawcett, David <[EMAIL PROTECTED]>: > >> Before you create lots of different layers to simulate symbol scaling, >> you may want to try something else. It has been a long time since I >> have played with scaled symbols, but give it a try. >> >> You should be able to scale the symbols by setting a SYMBOLSCALE in the >> LAYER object. This is the scale at which you want the symbol to appear >> at the SIZE stated in the map file. >> >> You may want to modify STYLE MAXSIZE if you think that you will want >> your symbols to be larger than 50 pixels. >> >> Another completely different approach that just came to my mind would be >> to use ground units (e.g. meters) to set the size of your symbol. To do >> this, set LAYER SIZEUNITS to meters. Calculate the size of a symbol in >> meters on the ground that will touch adjacent symbols, or give you the >> desired amount of space between the symbols. That way, the symbols >> should scale consistently. >> >> David. >> >> -Original Message- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of Ritesh >> Ambastha >> Sent: Tuesday, May 27, 2008 10:16 AM >> To: mapserver-users@lists.osgeo.org >> Subject: Re: [MAPSERVER-USERS] Displaying population density with >> Mapserver >> >> >> >> Dear Faldor, >> >> Robert is absolutely right. You will have to make different LAYERS for >> the same POINT layer. But, define MAX/MINSCALE for each Layer. Change >> STYLE -> SIZE values in each of the layer. You are done !! >> >> Cheers ! >> Ambastha >> >> >> Faldor wrote: >> > >> > Yes, but I need them to adapt for different extents. >> > >> > For example, When I zoom out enough to see the world, I need them 1 >> > pixel wide (it's ugly otherwise), but when I zoom in I will need then >> > 2 or 5 or even 30 pixels wide to cover all space. >> > >> > 2008/5/27 Ritesh Ambastha <[EMAIL PROTECTED]>: >> > >> >> >> >> Dear Faldor, >> >> >> >> What I need is to have the points grow to cover all space >> >> available when I zoom in. >> >> >> >> Do you mean that the size of points should grow? It can be done >> >> easily by setting proper SIZE in the STYLE tag. >> >> >> >> >> >> Regards, >> >> Ambastha >> >> >> >> >> >> >> >> Faldor wrote: >> >> > >> >> > Hi, >> >> > >> >> > Sorry for my first empty message. >> >> > >> >> > My problem is, I need to display population density with Mapserver. >> >> >> > The data comes from GPWv3 and has a resolution of 15'. I converted >> >> > it to a POINT Shapefile using ogr2ogr. >> >> > >> >> >
