query
ender at titan.lab.csuchico.edu
ender at titan.lab.csuchico.edu
Thu Oct 7 13:10:41 EDT 1999
To all:
I have been attemping to perform a query using mapserver for some time
now, and I have not been successful. I have scoured over all of the
documentation, as well as the samples, and have not been able to determine
what I am missing.
I always get the error:
An error has occurred in msQueryUsingPoint(): Search returned no results.
Could somebody tell me exactly what this error means? Has mapserver found
any layers to query? How do you find out?
Attached is my .map and template file
-Aaron
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<html>
<head>
<title>Compendium of Water Quality Investigations</title>
</head>
<body bgcolor=#ffffff>
<table width=100%>
<tr>
<td width=100% colspan=3 bgcolor="#585a87" cellspacing=0 cellpadding=0>
<b>Municipal Water Quality Investigations Program</b><br>
1997 Compendium of Water Quality Investigations<br>
Sampling Sites of the Sacramento River Watershed<br>
<br>
<font size=+1><b>Central Area</b></font><br>
<br>
</td></tr>
<form method=GET action="/cgi-bin/mapserv">
<tr>
<td align=center valign=top width=110 bgcolor="#585a87">
<a href="http://titan.lab.csuchico.edu/compendium/pages/northern.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/b_northern_area.jpg" border=0 alt="Northern Area"></a>
<a href="http://titan.lab.csuchico.edu/compendium/pages/northeast.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/b_northeast_area.jpg" border=0 alt="Northeastern Area"></a>
<a href="http://titan.lab.csuchico.edu/compendium/pages/central.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/b_central_area.jpg" border=0 alt="Central Area"></a>
<a href="http://titan.lab.csuchico.edu/compendium/pages/eastern.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/b_eastern_area.jpg" border=0 alt="Eastern Area"></a>
<a href="http://titan.lab.csuchico.edu/compendium/pages/southern.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/b_southern_area.jpg" border=0 alt="Southern Area"></a>
<a href="http://titan.lab.csuchico.edu/compendium/pages/delta.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/b_delta_area.jpg" border=0 alt="Delta Area"></a>
<a href="http://titan.lab.csuchico.edu/compendium/pages/sfbay.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/b_sfbay_area.jpg" border=0 alt="SF Bay Area"></a>
</td>
<td valign=top>
<b>Programs conducting sampling within this area:</b><br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/F4.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/F4.jpg" border=0></a> - U.S. Geological Survey<br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/F7.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/F7.jpg" border=0></a> - U.S. Geological Survey<br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/L1.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/L1.jpg" border=0></a> - California State University, Chico<br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/L19.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/L19.jpg" border=0></a> - Sand and Salt Creek Watershed Project<br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/L20.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/L20.jpg" border=0></a> - Sacramento River Watershed Program<br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/S11.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/S11.jpg" border=0></a> - Department of Water Resources<br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/S18.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/S18.jpg" border=0></a> - <br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/S19.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/S19.jpg" border=0></a> - <br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/S25.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/S25.jpg" border=0></a> - State Water Resources Control Board<br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/S3.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/S3.jpg" border=0></a> - Department of Fish and Game<br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/S7.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/S7.jpg" border=0></a> - Department of Water Resources<br>
<a href="http://titan.lab.csuchico.edu/compendium/pages/S8.html"><img src="http://titan.lab.csuchico.edu/compendium/graphics/S8.jpg" border=0></a> - Department of Water Resources<br>
<td>
<input name=img type=image src="[img]" width= height= border=0><p>
Navigate:
<select name=zoomdir>
<option value=1 [zoomdir_1_select]>Zoom In
<option value=0 [zoomdir_0_select]>Pan
<option value=-1 [zoomdir_-1_select]>Zoom Out
</select>
Operation:
<select name=mode>
<option value=browse checked>Browse map
<option value=query>Pick Sampling Site
</select>
</td></tr>
</table>
<input type=hidden name=layers value="[layers]">
<input type=hidden name=imgext value="[mapext]">
<input type=hidden name=map value="[map]">
<input type=hidden name=zoomsize value="2">
</form>
</body></html>
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#
# Start of map file
#
NAME c
STATUS ON
SIZE 400 400
SHADESET /usr/local/share/ms/ms_symbols/symbols/shade.sym
MARKERSET /usr/local/share/ms/ms_symbols/symbols/marker.sym
LINESET /usr/local/share/ms/ms_symbols/symbols/line.sym
EXTENT -251552 65413.4 -119210 272783
UNITS METERS
SHAPEPATH "/usr/local/apache/htdocs/compendium/data"
IMAGECOLOR 255 255 255
transparent on
# LABELOVERLAP FALSE
#
# web interface
#
WEB
template /usr/local/apache/htdocs/compendium/maps/central.html
END
#
#
# Start of reference map
#
REFERENCE
IMAGE "/usr/local/apache/htdocs/compendium/graphics/reference_base.gif"
EXTENT -373896 -604675 540167 449854
STATUS ON
COLOR -1 -1 -1
OUTLINECOLOR 255 0 0
END
#
# Start of legend
#
LEGEND
KEYSIZE 18 12
LABEL
TYPE BITMAP
SIZE MEDIUM
COLOR 0 0 89
END
STATUS ON
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# Start of scalebar
#
SCALEBAR
IMAGECOLOR 255 255 255
LABEL
COLOR 0 0 0
SIZE SMALL
ANTIALIAS
END
SIZE 350 5
COLOR 255 255 255
BACKGROUNDCOLOR 0 0 0
OUTLINECOLOR 0 0 0
UNITS KILOMETERS
INTERVALS 5
STATUS ON
END
#
# Start of layer definitions
#
# county lines
LAYER
NAME county
TYPE POLYGON
STATUS DEFAULT
DATA countys
LABELITEM county_nam
CLASS
SYMBOL 0
OUTLINECOLOR 230 230 230
COLOR 255 255 255
BACKGROUNDCOLOR 255 255 255
LABEL
SIZE SMALL
TYPE truetype
font Arial
BUFFER 2
COLOR 170 170 170
POSITION cc
END
END
END # county layer
# hydro
LAYER
NAME hydro
TYPE LINE
STATUS DEFAULT
DATA central_hydro
TOLERANCE 5
LABELITEM PNAME
CLASS
COLOR 140 169 190
LABEL
SIZE TINY
COLOR 81 131 183
END
END
END # hydro Layer
# lakes
LAYER
NAME lakes
TYPE POLYGON
STATUS DEFAULT
DATA central_lakes
TOLERANCE 3
CLASS
COLOR 81 131 183
END
END # lakes Layer
# roads
LAYER
NAME roads
TYPE line
status on
data roads
tolerance 5
class
color 168 155 143
end
end # roads
LAYER
NAME sites
TYPE POINT
STATUS ON
DATA central_sites
LABELITEM "NAME"
CLASSITEM "ORG_TYPE"
CLASS
SYMBOL 0
COLOR 255 0 0
EXPRESSION "F"
LABEL
POSITION ul
COLOR 255 0 0
backgroundcolor 255 255 255
buffer 2
END
END
CLASS
SYMBOL 0
COLOR 13 130 0
EXPRESSION "S"
LABEL
POSITION ul
COLOR 13 130 0
backgroundcolor 255 255 255
buffer 2
END
END
CLASS
SYMBOL 0
COLOR 211 29 111
EXPRESSION "L"
LABEL
POSITION ul
COLOR 128 0 128
backgroundcolor 255 255 255
buffer 2
END
END
QUERYITEM "NAME"
QUERY
EXPRESSION "^-"
TEMPLATE "site.html"
END
END # sites layer
# cities
LAYER
NAME cities
TYPE POINT
STATUS on
DATA central_cities
TOLERANCE 10
LABELITEM "NAME"
CLASS
SYMBOL 0
SIZE 4
LABEL
COLOR 0 0 0
POSITION ul
PARTIALS off
backgroundcolor 200 200 200
buffer 5
END
END
END # cities layer
END # end of mapfile
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