Re: [mapserver-users] Color palette for road-like layers
Yes Bob, I like the roads. :) Can you show me how you are able to draw contours around your roads? Thanks Bob Basques wrote: Adrian, Would the lines used for this map work for you? https://gis.ci.stpaul.mn.us/gis/gismo_public/html/ Looks like the original Mapfile link is broken though, I'll need to fix that in the morning. bobb -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Color palette for road-like layers
Adrian, that is a fairly simple trick, you need to draw roads twice to do it. You can do that with two separate layers or two STYLE objects within a class depending on what effect you want to achieve. In both cases, you just draw the road 2 pixels wider in your 'outline' color (called a casement). For instance, assuming you are using two STYLE objects: LAYER NAME Major Roads TYPE LINE DATA myroads CLASS NAME Major Roads STYLE #Casement style SIZE 9 COLOR 192 192 192 SYMBOL circle END STYLE #Center style SIZE 7 COLOR 255 255 255 SYMBOL circle END END END You would use two separate layers to draw the casement and center style if you had several layers and/or classes of roads that you wanted to 'merge' the casements - in your google screenshoot, you should notice that the grey casement on Hollywood St merges with the casement on W 8th St and there is no grey line between the two center colors, this would be how to achieve a similar effect in MapServer. Cheers Paul On 6-Jan-09, at 3:51 AM, Adrian Popa wrote: Yes Bob, I like the roads. :) Can you show me how you are able to draw contours around your roads? Thanks Bob Basques wrote: Adrian, Would the lines used for this map work for you? https://gis.ci.stpaul.mn.us/gis/gismo_public/html/ Looks like the original Mapfile link is broken though, I'll need to fix that in the morning. bobb -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users __ Paul Spencer Chief Technology Officer DM Solutions Group Inc http://research.dmsolutions.ca/ ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Showing pop up for a line
In my experience it's easier to do a buffer on the line features first
(something nominal) which turns it into a polygon. In this way, the operators
you want to use work consistently.
- Original Message
From: Subha Ramakrishnan su...@gslab.com
To: Steve Lime steve.l...@dnr.state.mn.us
Cc: mapserver-users@lists.osgeo.org
Sent: Tuesday, January 6, 2009 12:04:13 AM
Subject: [mapserver-users] Showing pop up for a line
Hi,
I am using Mapserver 5.0.2 with Openlayers.
I've a line layer (from mapserver) shown on my base map(google physical).
Now, when i click on a line, i want to show a pop using openlayers.
I am able to do this for a polygon layer. I send the lat,lon of the point
that
is clicked and use the postgis query
ST_Contains(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) to find the polygon (and fetch the polygon
specific
data to show on pop up) and attach the Openlayers popup to the point clicked.
I am not able to do this for a line layer as the postgis query doesn't return
anything.
I tried this query also,
ST_Contains(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) AND
distance(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) = 1 but it doesn't work.
Does any one know how to check if a point is a part of a line or if there is
any
other way to show the pop up?
Thanks a lot for the help.
Regards,
Subha
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Re: [mapserver-users] Showing pop up for a line
Hi,
Thanks a lot for the reply.
If i use
ST_Contains(topology,st_expand(geomFromText('POINT(77.87117958068927
13.491965860913544)',-1), 10), can it be the case that more than one
record will match the condition? And this will not work for me, as I
need to have exactly one record to show the pop up.
The constraint I'm facing in using Openlayers to draw the line layer is
that the layer is too huge consisting of more than 20,000 features and
the browser hangs because of too much memory being used in drawing the
layer. Hence I am using mapserver for drawing the line layer.
I did try other options here. The operator ~ [A ~ B (A completely
contains B)] gives me more than one line(record) that matches the
condition. But this cannot be the case to show the pop up. I did try to
club it with other operators like and = but none of these seem to
work.
Thanks again.
Regards,
Subha
Dan Little wrote:
In my experience it's easier to do a buffer on the line features first
(something nominal) which turns it into a polygon. In this way, the operators
you want to use work consistently.
- Original Message
From: Subha Ramakrishnan su...@gslab.com
To: Steve Lime steve.l...@dnr.state.mn.us
Cc: mapserver-users@lists.osgeo.org
Sent: Tuesday, January 6, 2009 12:04:13 AM
Subject: [mapserver-users] Showing pop up for a line
Hi,
I am using Mapserver 5.0.2 with Openlayers.
I've a line layer (from mapserver) shown on my base map(google physical).
Now, when i click on a line, i want to show a pop using openlayers.
I am able to do this for a polygon layer. I send the lat,lon of the point that
is clicked and use the postgis query
ST_Contains(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) to find the polygon (and fetch the polygon specific
data to show on pop up) and attach the Openlayers popup to the point clicked.
I am not able to do this for a line layer as the postgis query doesn't return
anything.
I tried this query also,
ST_Contains(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) AND
distance(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) = 1 but it doesn't work.
Does any one know how to check if a point is a part of a line or if there is any
other way to show the pop up?
Thanks a lot for the help.
Regards,
Subha
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Re: [mapserver-users] Color palette for road-like layers
I have an additional question: can elements such as roads be drawn in such a way that they look like google maps (see second attachment) - meaning not just a single color, but apparently color + boundries? This is documented in the Intro to MapServer doc: http://mapserver.org/introduction.html -jeff -- Jeff McKenna FOSS4G Consulting and Training Services http://www.gatewaygeomatics.com/ ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] FORMATOPTION PALETTE_FORCE=TRUE problem
Hi! I have tried to use the FORMATOPTION PALETTE_FORCE=TRUE with no luck. I've goth this error message all the time: [Tue Jan 6 15:26:05 2009].409786 msDrawMap(): Layer 3 (N500Hoydelag), 0.161s [Tue Jan 6 15:26:05 2009].409998 msDrawMap(): Drawing Label Cache, 0.000s [Tue Jan 6 15:26:05 2009].410010 msDrawMap() total time: 0.170s [Tue Jan 6 15:26:05 2009].416062 Invalid number of colors in palette: Unable to access file. libpng error () [Tue Jan 6 15:26:05 2009].416108 ms_png_write_image_init(): General error message. error writing png header (via longjmp) [Tue Jan 6 15:26:05 2009].416115 msSaveImageRGBAPalette(): General error message. error in png header writing [Tue Jan 6 15:26:05 2009].416122 msSaveImage() total time: 0.006s [Tue Jan 6 15:26:05 2009].416170 mapserv request processing time (msLoadMap not incl.): 0.177s My ouputformat is defined like this: OUTPUTFORMAT NAME png8bit DRIVER AGG/PNG MIMETYPE image/png EXTENSION png FORMATOPTION PALETTE_FORCE=TRUE FORMATOPTION PALETTE=/opt/maps/kartdata2/mapfiles/palette.txt FORMATOPTION INTERLACE=OFF END The palette.txt file is attached http://n2.nabble.com/file/n2117781/palette.txt palette.txt Does anyone know whats wrong? BTW: This is MapServer 5.2.1 on RedHat. Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/FORMATOPTION-%22PALETTE_FORCE%3DTRUE%22-problem-tp2117781p2117781.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
Re: [mapserver-users] FORMATOPTION PALETTE_FORCE=TRUE problem
are you calling this with a transparent=true ?? in that cas, your palette file should be a list of quadruplets (r,g,b,a) (and it would be better to have an outputformat with imagemode rgba, and use that one instead of passing transparent=true) thomas On Tue, Jan 6, 2009 at 15:56, paalkr pal.kristen...@statkart.no wrote: Hi! I have tried to use the FORMATOPTION PALETTE_FORCE=TRUE with no luck. I've goth this error message all the time: [Tue Jan 6 15:26:05 2009].409786 msDrawMap(): Layer 3 (N500Hoydelag), 0.161s [Tue Jan 6 15:26:05 2009].409998 msDrawMap(): Drawing Label Cache, 0.000s [Tue Jan 6 15:26:05 2009].410010 msDrawMap() total time: 0.170s [Tue Jan 6 15:26:05 2009].416062 Invalid number of colors in palette: Unable to access file. libpng error () [Tue Jan 6 15:26:05 2009].416108 ms_png_write_image_init(): General error message. error writing png header (via longjmp) [Tue Jan 6 15:26:05 2009].416115 msSaveImageRGBAPalette(): General error message. error in png header writing [Tue Jan 6 15:26:05 2009].416122 msSaveImage() total time: 0.006s [Tue Jan 6 15:26:05 2009].416170 mapserv request processing time (msLoadMap not incl.): 0.177s My ouputformat is defined like this: OUTPUTFORMAT NAME png8bit DRIVER AGG/PNG MIMETYPE image/png EXTENSION png FORMATOPTION PALETTE_FORCE=TRUE FORMATOPTION PALETTE=/opt/maps/kartdata2/mapfiles/palette.txt FORMATOPTION INTERLACE=OFF END The palette.txt file is attached http://n2.nabble.com/file/n2117781/palette.txt palette.txt Does anyone know whats wrong? BTW: This is MapServer 5.2.1 on RedHat. Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/FORMATOPTION-%22PALETTE_FORCE%3DTRUE%22-problem-tp2117781p2117781.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] Showing pop up for a line
Why not use straight MapServer queries? Set a reasonable tolerance and that
should
work ok too.
Steve
On 1/6/2009 at 12:04 AM, in message 4962f45d.3010...@gslab.com, Subha
Ramakrishnan su...@gslab.com wrote:
Hi,
I am using Mapserver 5.0.2 with Openlayers.
I've a line layer (from mapserver) shown on my base map(google physical).
Now, when i click on a line, i want to show a pop using openlayers.
I am able to do this for a polygon layer. I send the lat,lon of the
point that is clicked and use the postgis query
ST_Contains(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) to find the polygon (and fetch the polygon
specific data to show on pop up) and attach the Openlayers popup to the
point clicked.
I am not able to do this for a line layer as the postgis query doesn't
return anything.
I tried this query also,
ST_Contains(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) AND
distance(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) = 1 but it doesn't work.
Does any one know how to check if a point is a part of a line or if
there is any other way to show the pop up?
Thanks a lot for the help.
Regards,
Subha
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Re: [mapserver-users] Showing pop up for a line
You may also want to use mapserver to render the lines as a raster layer
instead of vector.
- Original Message
From: Steve Lime steve.l...@dnr.state.mn.us
To: Subha Ramakrishnan su...@gslab.com
Cc: mapserver-users@lists.osgeo.org
Sent: Tuesday, January 6, 2009 9:31:18 AM
Subject: Re: [mapserver-users] Showing pop up for a line
Why not use straight MapServer queries? Set a reasonable tolerance and that
should
work ok too.
Steve
On 1/6/2009 at 12:04 AM, in message 4962f45d.3010...@gslab.com, Subha
Ramakrishnan wrote:
Hi,
I am using Mapserver 5.0.2 with Openlayers.
I've a line layer (from mapserver) shown on my base map(google physical).
Now, when i click on a line, i want to show a pop using openlayers.
I am able to do this for a polygon layer. I send the lat,lon of the
point that is clicked and use the postgis query
ST_Contains(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) to find the polygon (and fetch the polygon
specific data to show on pop up) and attach the Openlayers popup to the
point clicked.
I am not able to do this for a line layer as the postgis query doesn't
return anything.
I tried this query also,
ST_Contains(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) AND
distance(topology,geomFromText('POINT(77.87117958068927
13.491965860913544)',-1)) = 1 but it doesn't work.
Does any one know how to check if a point is a part of a line or if
there is any other way to show the pop up?
Thanks a lot for the help.
Regards,
Subha
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[mapserver-users] error with GRID
Hi! I have a problem with Esri GRID raster in my mapfile. If I have a DEM, for example, in the object layer what is the correct path that I have to use? GRID esri has a folder DEM and a folder INFO. The error is referred to the path of this layer, but I don't understand the real solution. Thanks. Z ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Confirmation of status of UTF8 support, and where transcoding to Latin-1 may be happening.
I hope people don't mind me posting as I learn things, hoping that it will spark some ideas from other people. On Sun, 4 Jan 2009, Russell McOrmond wrote: Howard Butler wrote on November 24, 2008 @ 05:17 PM: pictures looked right. The problem might be as simple as the function msConvertWideStringToUTF8 being broken. Here's where MapServer tries to convert it: http://trac.osgeo.org/mapserver/browser/trunk/mapserver/mapsde.c#L750 The more I look at this, the more confused I get. I'm now back at the customer (Xmas break), and confirmed that I'm not even making use of this code. The relevant strings are SE_STRING_TYPE and not SE_NSTRING_TYPE. I have also confirmed ( msDebug() statements) that the characters coming out of SE_stream_get_string() are Latin-1 encoded, and not UTF-8 encoded. Our database person confirmed that the data is encoded as UTF-8 in the database. This suggests to me that it is SDE itself or the libsde.so client library that is doing the transcoding to Latin-1 I'm curious if anyone knows if libsde.so has an equivalent to Oracle's NLS_LANG environment variable? It seems the decision to use STRING rather than NSTRING came down to the label functions. I haven't looked at those functions yet to determine if they need Latin-1, and thus this is why things are working with STRING (Which comes in as Latin-1) rather than NSTRING (Which the code suggests should be transcoded to UTF-8). Another issue, this time with iconv. I know this is not a mapserver issue, but it is possible that someone has seen something similar. We created some tables with strings in NSTRING. I then got the error msConvertWideStringToUTF8(): General error message. Encoding not supported by libiconv(UTF-16) I'm a bit stuck as any call to iconv_open() returns -1, no matter what I put for the from and to. The manual for iconv_open says that if it returns -1 that it sets errno, but it doesn't change the value. errno = 1; cd = iconv_open(ISO-8859-1, UTF-8); msDebug(errno= %d cd=%d\n,errno,cd); errno= 1 cd=-1 errno = 5; cd = iconv_open(UTF-8, UTF-16); msDebug(errno= %d cd=%d\n,errno,cd); errno= 5 cd=-1 errno = 123; cd = iconv_open(, UTF-16); msDebug(errno= %d cd=%d\n,errno,cd); errno= 123 cd=-1 I've tried loading the gnu iconv first, export LD_PRELOAD=/server/ndevl18/apache-2.2.9/lib/preloadable_libiconv.so ldd then shows that library first, but no difference. When I use the command line 'iconv' utility, it can convert from UTF-8 to ISO-8859-1 with no problem. Has anyone seen a problem like this? OS: Red Hat Enterprise Linux ES release 4 (Nahant Update 4) ICONV: http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.12.tar.gz familiarity at this point) figure out what is going. It is a patch to msEncodeHTMLEntities to encode these characters. As entities they will work as the browser won't care what encoding it thinks the page should be in. I added the patch here: http://trac.osgeo.org/mapserver/ticket/2842 Turns out that while this solves my getFeatureInfo problem, it introduces more problems. The various .map files have strings in them that are UTF-8 encoded. In this situatuation we have words like générale coming out as gAtilde;copy;nAtilde;copy;rale when we do a request=getcapabilities Seems things are never as simple as you first think. -- Russell McOrmond, Internet Consultant: http://www.flora.ca/ Please help us tell the Canadian Parliament to protect our property rights as owners of Information Technology. Sign the petition! http://digital-copyright.ca/petition/ict/ http://KillBillC61.ca The government, lobbied by legacy copyright holders and hardware manufacturers, can pry control over my camcorder, computer, home theatre, or portable media player from my cold dead hands!___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] error with GRID
simone.frigerio wrote: Hi! I have a problem with Esri GRID raster in my mapfile. If I have a DEM, for example, in the object layer what is the correct path that I have to use? GRID esri has a folder DEM and a folder INFO. The error is referred to the path of this layer, but I don't understand the real solution. Thanks. I believe there should be a file named hdr.adf in your DEM folder. You can then try the command gdalinfo hdr.adf on that file to see if GDAL can access that grid file. If successful then I would use that file in your DATA parameter in your mapfile layer. (I believe you can also use the DEM folder for both also, but I cannot verify right at this second) -jeff -- Jeff McKenna FOSS4G Consulting and Training Services http://www.gatewaygeomatics.com/ ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] queryByRect throws an error
mapObj.queryByRect(...) (using C# map script) is throwing following exception when there is an embedded scale bar on map. Exception message: msShapefileOpen(): Unable to access file. No (NULL) filename provided.;msBuildPath: Unable to access file Removing the scale bar from map file works fine. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] FORMATOPTION PALETTE_FORCE=TRUE problem
Hi Thomas, thanks for the quick answer! Applying ,255 at the end of every record in the palette.txt file worked, but when I made the WMS GetMap request I got an image in return where all the areas that should have been transparent where black (transparent=true). When using transparent=false I got an image in return where the nodata areas were filled with the bgcolor parameter value, which is of course the right response. The original palette.txt file with only r,g,b values caused the mentioned error message with both transparent=true and transparent=false, but I suspected it to work in the latter case. Adding imagemode rgba didn't do any difference in any way. What exactly should the effect of adding this to the outputformat be? Regards, Pål Kristensen thomas bonfort wrote: are you calling this with a transparent=true ?? in that cas, your palette file should be a list of quadruplets (r,g,b,a) (and it would be better to have an outputformat with imagemode rgba, and use that one instead of passing transparent=true) thomas On Tue, Jan 6, 2009 at 15:56, paalkr pal.kristen...@statkart.no wrote: Hi! I have tried to use the FORMATOPTION PALETTE_FORCE=TRUE with no luck. I've goth this error message all the time: [Tue Jan 6 15:26:05 2009].409786 msDrawMap(): Layer 3 (N500Hoydelag), 0.161s [Tue Jan 6 15:26:05 2009].409998 msDrawMap(): Drawing Label Cache, 0.000s [Tue Jan 6 15:26:05 2009].410010 msDrawMap() total time: 0.170s [Tue Jan 6 15:26:05 2009].416062 Invalid number of colors in palette: Unable to access file. libpng error () [Tue Jan 6 15:26:05 2009].416108 ms_png_write_image_init(): General error message. error writing png header (via longjmp) [Tue Jan 6 15:26:05 2009].416115 msSaveImageRGBAPalette(): General error message. error in png header writing [Tue Jan 6 15:26:05 2009].416122 msSaveImage() total time: 0.006s [Tue Jan 6 15:26:05 2009].416170 mapserv request processing time (msLoadMap not incl.): 0.177s My ouputformat is defined like this: OUTPUTFORMAT NAME png8bit DRIVER AGG/PNG MIMETYPE image/png EXTENSION png FORMATOPTION PALETTE_FORCE=TRUE FORMATOPTION PALETTE=/opt/maps/kartdata2/mapfiles/palette.txt FORMATOPTION INTERLACE=OFF END The palette.txt file is attached http://n2.nabble.com/file/n2117781/palette.txt palette.txt Does anyone know whats wrong? BTW: This is MapServer 5.2.1 on RedHat. Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/FORMATOPTION-%22PALETTE_FORCE%3DTRUE%22-problem-tp2117781p2117781.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 -- View this message in context: http://n2.nabble.com/FORMATOPTION-%22PALETTE_FORCE%3DTRUE%22-problem-tp2117781p2118972.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
Re: [mapserver-users] queryByRect throws an error
Hi, Could you provide a code/mapfile sample to reconstruct the issue? I've never experienced such a problem, I've used this function many times though. Best regards, Tamas 2009/1/6 Murty Maganti mmaga...@oriongis.com mapObj.queryByRect(…) (using C# map script) is throwing following exception when there is an embedded scale bar on map. Exception message: msShapefileOpen(): Unable to access file. No (NULL) filename provided.;msBuildPath: Unable to access file Removing the scale bar from map file works fine. ___ 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] queryByRect throws an error
Hi Tamas
Thanks for reply.
These are extracts from my code to replicate the issue
//Create map object
mapObj map = new mapObj(MyMap.map);
//draw map
map.draw() ;
//Make sure some template name is defined. Otherwise, query will not be
successful.
for (int i = 0; i map.numlayers; i++)
{
if (string.IsNullOrEmpty(m_map.getLayer(i).template))
{
m_map.getLayer(i).template = abc;
}
}
//Perform the query now
map.queryByRect(map.extents);
I think after a call to map.draw(), a new layer '__embed__scalebar' is
added to layers collection. Setting template name to it is performing
the query on scalebar layer as well.
I think the scalebar layer is not satisfying these two conditions in
msQueryByRect method of mapquery.c and hence getting used for query
if(!msIsLayerQueryable(lp)) continue;
if(lp-status == MS_OFF) continue;
Please let me know if you need more info or you need any test
application.
Thanks
Murty
From: Tamas Szekeres [mailto:szeker...@gmail.com]
Sent: Tuesday, January 06, 2009 3:33 PM
To: Murty Maganti
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] queryByRect throws an error
Hi,
Could you provide a code/mapfile sample to reconstruct the issue? I've
never experienced such a problem, I've used this function many times
though.
Best regards,
Tamas
2009/1/6 Murty Maganti mmaga...@oriongis.com
mapObj.queryByRect(...) (using C# map script) is throwing following
exception when there is an embedded scale bar on map.
Exception message: msShapefileOpen(): Unable to access file. No (NULL)
filename provided.;msBuildPath: Unable to access file
Removing the scale bar from map file works fine.
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Re: [mapserver-users] Color palette for road-like layers
Thank you all for your help, I had the feeling this is how it's done, but I was hoping for a simpler approach. Anyway, now I must only find some decent colors for my layers :) Cheers, Adrian Paul Spencer wrote: Adrian, that is a fairly simple trick, you need to draw roads twice to do it. You can do that with two separate layers or two STYLE objects within a class depending on what effect you want to achieve. In both cases, you just draw the road 2 pixels wider in your 'outline' color (called a casement). For instance, assuming you are using two STYLE objects: LAYER NAME Major Roads TYPE LINE DATA myroads CLASS NAME Major Roads STYLE #Casement style SIZE 9 COLOR 192 192 192 SYMBOL circle END STYLE #Center style SIZE 7 COLOR 255 255 255 SYMBOL circle END END END You would use two separate layers to draw the casement and center style if you had several layers and/or classes of roads that you wanted to 'merge' the casements - in your google screenshoot, you should notice that the grey casement on Hollywood St merges with the casement on W 8th St and there is no grey line between the two center colors, this would be how to achieve a similar effect in MapServer. Cheers Paul On 6-Jan-09, at 3:51 AM, Adrian Popa wrote: Yes Bob, I like the roads. :) Can you show me how you are able to draw contours around your roads? Thanks Bob Basques wrote: Adrian, Would the lines used for this map work for you? https://gis.ci.stpaul.mn.us/gis/gismo_public/html/ Looks like the original Mapfile link is broken though, I'll need to fix that in the morning. bobb -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users __ Paul Spencer Chief Technology Officer DM Solutions Group Inc http://research.dmsolutions.ca/ -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
