It seems your url is set wrong as mode is given twice. You have to pass layer=layer_name<div><br><div class="gmail_quote">2012/8/26 李杨 <span dir="ltr"><<a href="mailto:gisyangli@gmail.com" target="_blank">gisyangli@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I try to load a postgis data layer on my mapfile, have problem when configure the mapfile done, then visit it using "<a href="http://127.0.0.1/cgi-bin/mapserv?&map=/var/www/osm-google.map&mode=map&mode=map" target="_blank">http://127.0.0.1/cgi-bin/mapserv?&map=/var/www/osm-google.map&mode=map&mode=map</a>" on the browser address. , only a blank blue image return, with no expected dot info.<br>
<br>I can not figure out which step is have problem.<br><br>Provide background info:<br><br>ogrinfo for the database table:<br><br>jack@jack-Vostro-1450:/usr/lib/cgi-bin$ ogrinfo PG:"host=127.0.0.1 user=osm password=osm dbname=osm port=5432" osm_new_mainroads -summary<br>
INFO: Open of `PG:host=127.0.0.1 user=osm password=osm dbname=osm port=5432'<br> using driver `PostgreSQL' successful.<br><br>Layer name: osm_new_mainroads<br>Geometry: Line String<br>Feature Count: 9704<br>
Extent: (-9871463.421196, 3533052.471384) - (-9460289.228784, 4190971.740014)<br>Layer SRS WKT:<br>PROJCS["Popular Visualisation CRS / Mercator (deprecated)",<br> GEOGCS["Popular Visualisation CRS",<br>
DATUM["Popular_Visualisation_Datum",<br> SPHEROID["Popular Visualisation Sphere",6378137,0,<br> AUTHORITY["EPSG","7059"]],<br> TOWGS84[0,0,0,0,0,0,0],<br>
AUTHORITY["EPSG","6055"]],<br> PRIMEM["Greenwich",0,<br> AUTHORITY["EPSG","8901"]],<br> UNIT["degree",0.01745329251994328,<br>
AUTHORITY["EPSG","9122"]],<br> AUTHORITY["EPSG","4055"]],<br> UNIT["metre",1,<br> AUTHORITY["EPSG","9001"]],<br> PROJECTION["Mercator_1SP"],<br>
PARAMETER["central_meridian",0],<br> PARAMETER["scale_factor",1],<br> PARAMETER["false_easting",0],<br> PARAMETER["false_northing",0],<br> AUTHORITY["EPSG","3785"],<br>
AXIS["X",EAST],<br> AXIS["Y",NORTH]]<br>FID Column = id<br>Geometry Column = geometry<br>osm_id: Integer (0.0)<br>name: String (255.0)<br>type: String (255.0)<br>tunnel: Integer (5.0)<br>bridge: Integer (5.0)<br>
oneway: Integer (5.0)<br>ref: String (255.0)<br>z_order: Integer (5.0)<br>jack@jack-Vostro-1450:/usr/lib/cgi-bin$ <br><br>--------------------------------------------------------------------------------------------<br>.map(uing in the link above : osg-google.map) info for configure:<br>
<br>MAP<br>NAME places1<br>STATUS ON<br>SIZE 800 800<br>EXTENT -9871463.421196 3533052.471384 -9460289.228784 4190971.740014<br>UNITS meters<br>IMAGECOLOR 153 179 204<br><br><br>WEB<br> IMAGEPATH "/var/www/output"<br>
IMAGEURL "/output/"<br>END<br><br>LAYER<br> STATUS DEFAULT<br> NAME "places1"<br> DATA "geometry from osm_new_mainroads using unique osm_id using srid 3785"<br> TYPE POINT<br> CONNECTIONTYPE postgis<br>
CONNECTION "host=localhost dbname=osm user=osm password=osm port=5432"<br> CLASS<br>NAME "places1_color"<br>COLOR 255 215 0<br> END<br>END<br><br>END<br><br>-------------------------<br>for a explanation , whenever set "DATA "geometry from osm_new_mainroads using unique osm_id using srid 3785"",<br>
DATA "geometry from osm_new_mainroads", or <br>DATA "geometry from osm_new_mainroads using unique osm_id using srid 3875<br><br>is the same , a blank image return<br>-------------------------------------------------------<br>
massperv version info:<br><br>./mapserv -v<br>MapServer version 6.0.3 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=ICONV SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=GEOS INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE<br>
<br><br><br>I try to experiment it in two different laptop and can not get expected result.<br><br>Please those with experience help me., this problem qurrall me a lot this weeked.<br><br>Thanks a lot. <br><span class="HOEnZb"><font color="#888888"><br>
<br>-- <br>
<div style="text-align:left"><span style="text-align:-webkit-auto">Yang Li</span><div>GIS Developer</div><div>P.R.China</div><div><br></div></div><br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Henrique<br><br>
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