-----Original Message-----
From: UMN MapServer Users List
[mailto:[EMAIL PROTECTED] On Behalf Of Scott Wittenburg
Sent: 17 January, 2008 2:59 PM
To: [email protected]
Subject: [UMN_MAPSERVER-USERS] Trouble with
OGC Workshop WFS Client Demo
Hello All,
I'm new to mapserver, and I'm having trouble getting one of
the OGC Workshop demos to work. Hopefully I'll include
enough support information here so that someone can help me
figure what I'm doing wrong.
If anything is missing, please ask and I'll provide any other
necessary details. Thanks for taking the time to read this
problem description.
Ok, specifically, when I attempt to run the WFS client demo,
I get an error in my browser window which looks like this:
msDrawMap(): Image handling error. Failed to draw layer named
'envirodat'. msOGRFileOpen(): OGR error. Open failed for OGR
connection
`/ms4w/tmp/ms_tmp/e80d38d9bdf59eada6d84cd0b21eb99e.tmp.gml'.
File not found or unsupported format.
The url that generated this error was:
http://localhost/cgi-bin/mapserv.exe?map=%2Fms4w%2Fapps%2Fms_o
gc_workshop%2Fclient%2Fwfs%2Fdemo.map&layer=envirodat&layer=ri
vers&layer=land_shallow_topo_2048&zoomsize=2&zoomdir=1&program
=%2Fcgi-bin%2Fmapserv.exe&map_web=imagepath+%2Fms4w%2Ftmp%2Fms
_tmp%2F+imageurl+%2Fms_tmp%2F
When I look in the directory "C:\ms4w\tmp\ms_tmp\", I see the
file in question and I've looked at it. It appears to be
valid GML, though the cygwin "ls -lt"
command shows the file permissions as
"-rwxrwx---". Is this a problem (not world readable)?
The "C:\ms4w\tmp\ms_tmp\" directory permissions are even more
restrictive: "drwx------". I've tried opening up all the
permissions on all these files and directories, but it didn't
seem to help.
Here are some system configuration details:
I'm running Windows XP, SP2. I installed MS4W version 2.2.6
and the OGC Workshop version 1.0.8 into the recommended
location, "C:\" (root directory is "C:\ms4w\"). Everything
seemed to work fine, and several of the workshop demos worked
fine, but when I clicked on the WFS-Client demo link and then
clicked the "Initialize" button, I got the error message shown above.
I noticed a message in the archives that looked very similar
to this error, but the problem was actually an extra path
separator char getting put into the tmp file path. Other
than that, I haven't really seen this problem addressed
anywhere, so most people obviously aren't seeing it. One
thing I found that people have said could be a problem is the
version of OGR/GDAL used by mapserver. I've used the
"C:\ms4w\tools\gdal-ogr\ogrinfo.exe
program to look at the tmp gml file in question:
C:\ms4w\tools\gdal-ogr>ogrinfo.exe
C:\ms4w\tmp\ms_tmp\e80d38d9bdf59eada6d84cd0b21eb99e.tmp.gml
Had to open data source read-only.
INFO: Open of
'C:\ms4w\tmp\ms_tmp\e80d38d9bdf59eada6d84cd0b21eb99e.tmp.gml'
using driver 'GML' successfull.
1: envirodat
So that seems fine, doesn't it? The MS4W 2.2.6 documentation
says it includes "GDAL/OGR 1.4.2 and Utilities", so that
seems fine too.
Here's the mapfile of the demo that caused the
problem:
#
# $Id: demo.map,v 1.2 2006/08/08 19:02:46 tkralidi Exp $ # #
Start of map file #
MAP
# all temp files get prefixed with this string NAME ms_ogc_workshop
# always returns a map
STATUS ON
# image format options
OUTPUTFORMAT
NAME png
DRIVER "GD/PNG"
MIMETYPE "image/png"
IMAGEMODE RGB
EXTENSION "png"
END
# width / height of map image
SIZE 500 300
# projection of the INTERFACE that this mapfile supports PROJECTION
"init=epsg:4326"
END
# minx miny maxx maxy
EXTENT -180 -90 180 90 # World
# units of map/app
UNITS DD
# def pointers for symbols
SYMBOLSET "../../etc/symbols/symbols.sym"
FONTSET "../../etc/fonts/fonts.txt"
#
# Start of web interface definition
#
WEB
TEMPLATE "../../templates/demo.html"
HEADER "../../templates/query_header.html"
FOOTER "../../templates/query_footer.html"
# this is set in the form which initializes the page, but
can be set here if you want
IMAGEPATH "/ms4w/tmp/ms_tmp/"
# this is set in the form which initializes the page, but
can be set here if you want
IMAGEURL "/ms_tmp/"
END
#
# Start of reference map
#
REFERENCE
# which image is the base image for refmaps
# a area of interest box will be drawn on top of it
IMAGE ../../graphics/refmap_world_4326.gif
# extents of ref image (minx miny maxx maxy)
EXTENT -180 -90 180 90
# width / height of image
SIZE 150 75
# always generated
STATUS ON
COLOR -1 -1 -1
# color of outline
OUTLINECOLOR 255 0 0
END
#
# Start of legend
#
LEGEND
KEYSIZE 18 12
LABEL
TYPE BITMAP
SIZE MEDIUM
COLOR 0 0 89
END
TEMPLATE "../../templates/legend.html"
STATUS ON
END
#
# Start of scalebar
#
SCALEBAR
IMAGECOLOR 255 0 0
LABEL
COLOR 0 0 0
SIZE tiny
END
STYLE 1
SIZE 80 2
COLOR 0 0 0
UNITS KILOMETERS
INTERVALS 1
TRANSPARENT TRUE
STATUS TRUE
END
# start of querymap object
QUERYMAP
SIZE 200 200
STATUS ON
STYLE HILITE
COLOR 255 0 0
END
# start of layer definitions
LAYER
# name of layer
NAME land_shallow_topo_2048
GROUP "RASTER"
# projection: if the data is NOT in the same projection as
the global
# mapfile, you must explicitly give the native projection
code of the data
# some common projections:
# lat/long: epsg:4326
# NRCan LCC: epsg:42304
PROJECTION
"init=epsg:4326"
END
# what type of data is this?
TYPE RASTER
# always returned with interface
STATUS ON
# actual data pointer
DATA ../../data/land_shallow_topo_2048.tif
DUMP TRUE
HEADER "../../templates/land_shallow_topo_2048_query_header.html"
TEMPLATE "../../templates/land_shallow_topo_2048_query_body.html"
TOLERANCE 5
END
LAYER
# name of layer
NAME rivers
GROUP "VECTOR"
# projection: if the data is NOT in the same projection as
the global
# mapfile, you must explicitly give the native projection
code of the data
# some common projections:
# lat/long: epsg:4326
# NRCan LCC: epsg:42304
PROJECTION
"init=epsg:4326"
END
# what type of data is this?
TYPE LINE
# always returned with interface
STATUS ON
# actual data pointer
DATA ../../data/rivers
# data is queryable
DUMP TRUE
# query templates for HTML-based queries
HEADER ../../templates/rivers_query_header.html
TEMPLATE ../../templates/rivers_query_body.html
TOLERANCE 5
# how will this data look?
CLASS
NAME "Rivers"
COLOR 0 0 255
END
END
LAYER
NAME envirodat
GROUP "VECTOR"
TYPE POINT
STATUS ON
# this is a remote OGC:WFS
CONNECTIONTYPE WFS
# the server URL prefix
# MapServer will add the OGC:WMS specific
# keyword value pairs accordingly
#CONNECTION
"http://map.ns.ec.gc.ca/envdat/map.aspx?service=WFS&version=1.
0.0&request=GetFeature"
CONNECTION "http://map.ns.ec.gc.ca/envdat/map.aspx?";
PROJECTION
"init=epsg:4326"
END
# base info MapServer needs to know to generate the
# OGC:WFS GetFeature request
METADATA
# MapServer default sends POST
# force to GET
"wfs_request_method" "GET"
# how long (in seconds) should MapServer use
# in issuing and receiving the data?
"wfs_connectiontimeout" "60"
# which version of the OGC:WFS should MapServer communicate with
"wfs_version" "1.0.0"
# service type for connection
# this info is a bit redundant
"wfs_service" "WFS"
# what is the feature type you are querying
"wfs_typename" "envirodat"
# what is the spatial extent?
"wfs_latlonboundingbox" "-64.6622 46.7594 -52.6808 55.2333"
#
END
#
# MapServer will then use this information to generate a
string like:
#
http://map.ns.ec.gc.ca/envdat/map.aspx?version=<wfs_version>&s
