[mapserver-users] Shapefile, itemnquery and HTML image map generation problem
W.John Guineau
guineau at earthlink.net
Wed Dec 9 03:33:19 PST 2009
Hi Steve,
Ok, I took the time to clean up the map file and make a simpler case for you
to look at.
Here is the archive:
http://CoyoteTechnology.com/ms/shape.zip
It's about 4 meg. If you unzip that to C:\ all the paths in the mapfile
should work (except the MS4w path to Apache's temp directory). Otherwise it
should be pretty straight-forward to get it going.
I left 4 example layers that exhibit the problem. Each layer has an example
URL to use to get it to render the map.
Let me know if I missed anything.
Thanks for the help!
john
-----Original Message-----
From: mapserver-users-bounces at lists.osgeo.org
[mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Steve Lime
Sent: Tuesday, December 08, 2009 9:26 AM
To: guineau at earthlink.net; mapserver-users at lists.osgeo.org;
Steve.Lime at state.mn.us
Subject: RE: [mapserver-users] Shapefile,itemnquery and HTML image map
generation problem
Seems like an extent problem to me - the way the results are clustered in
the
center of the image. MapServer does apply a spatial pre-filter for attribute
queries. However, the searchmap=true should compute a proper extent based
on your image properties (extent, size) before doing the query.
John, what are the changes you could zip up your data and mapfile for me?
Steve
>>> W.John Guineau <guineau at earthlink.net> 12/08/09 7:05 AM >>>
Ok, try this:
-----Original Message-----
From: Steve Lime [mailto:Steve.Lime at state.mn.us]
Sent: Monday, December 07, 2009 7:57 PM
To: W.John Guineau; mapserver-users at lists.osgeo.org; 'Steve Lime'
Subject: RE: [mapserver-users] Shapefile,itemnquery and HTML image map
generation problem
Do the ones not selected fall at the end of your qstring? I'm wondering if
something is getting truncated. I'd think
you'd get a parsing error in that case, but perhaps not. Can you label the
polygons with the value for MLRARSYM?
Steve
>>> On 12/7/2009 at 6:19 PM, in message
<01dc01ca779c$2c19eae0$844dc0a0$@net>,
W.John Guineau <guineau at earthlink.net> wrote:
> Hi Steve,
>
>
>
> OK, I added the QUERYMAP section and changed the URL:
>
>
>
> http://localhost/cgi-bin/mapserv?map=/NWPL_CRREL/MLRA/mlra.map
>
<http://localhost/cgi-bin/mapserv?map=/NWPL_CRREL/MLRA/mlra.map&qlayer=coe_m
>
&mode=itemnquerymap&searchmap=true&layer=states&mapext=-91+34+-89+49&mapsize
>
=600+400&qitem=MLRARSYM&qstring=(%22%5bMLRARSYM%5d%22%20in%20%22102A,102B,10
>
2C,103,104,105,106,107A,107B,108A,108B,108C,108D,109,110,111A,111B,111C,111D
> ,111E,112,113,114A,114B,115A,115B,115C%22)>
>
&qlayer=coe_m&mode=itemnquerymap&searchmap=true&layer=states&mapext=-91+34+-
>
89+49&mapsize=600+400&qitem=MLRARSYM&qstring=("[MLRARSYM]"%20in%20"102A,102B
>
,102C,103,104,105,106,107A,107B,108A,108B,108C,108D,109,110,111A,111B,111C,1
> 11D,111E,112,113,114A,114B,115A,115B,115C")
>
>
>
>
>
> Now I get the map with some of the items highlighted in yellow, and the
rest
> green:
>
>
>
>
>
>
>
> -----Original Message-----
> From: Steve Lime [mailto:Steve.Lime at state.mn.us]
> Sent: Monday, December 07, 2009 7:04 PM
> To: W.John Guineau; mapserver-users at lists.osgeo.org; 'Steve Lime'
> Subject: RE: [mapserver-users] Shapefile,itemnquery and HTML image map
> generation problem
>
>
>
> Just add a querymap object to your mapfile, like so:
>
>
>
> QUERYMAP
>
> STATUS ON
>
> END
>
>
>
> Then change your URL to use the mode itemnquerymap and that should return
> just an image with the
>
> selected features highlighted in yellow.
>
>
>
> Steve
>
>
>
>>>> On 12/7/2009 at 5:56 PM, in message
> <01ce01ca7798$dd4b89d0$97e29d70$@net>,
>
> W.John Guineau <guineau at earthlink.net> wrote:
>
>> I'm new to mapserver, how do I quickly generate a querymap?
>
>>
>
>> I'm using mapserver 5.4.2 from the latest MS4W on Windows 7 x64. I've
also
>
>> tried 5.2.1 that I compiled myself.
>
>>
>
>> john
>
>>
>
>>
>
>> -----Original Message-----
>
>> From: Steve Lime [mailto:Steve.Lime at state.mn.us]
>
>> Sent: Monday, December 07, 2009 6:40 PM
>
>> To: 'W.John Guineau'; mapserver-users at lists.osgeo.org
>
>> Subject: RE: [mapserver-users] Shapefile,itemnquery and HTML image map
>
>> generation problem
>
>>
>
>> GDAL's not in play here at all. If you generate a query map instead of an
>
>> html image map does
>
>> the output map look ok? What version are you using?
>
>>
>
>> Steve
>
>>
>
>>>>> On 12/4/2009 at 8:11 AM, in message
>
>> <04e001ca74eb$bc473400$34d59c00$@net>,
>
>> W.John Guineau <guineau at earthlink.net> wrote:
>
>>> How would I go about debugging this?
>
>>>
>
>>>
>
>>>
>
>>> I think this is GDAL and its query of shapefiles, right?
>
>>>
>
>>>
>
>>>
>
>>> The bottom line is that MapServer finds all the items when it is
> rendering
>
>>> the map by layer/class EXPRESSION, but the qstring in a URL using the
>
>> exact
>
>>> same EXPRESSION string misses some of the items.
>
>>>
>
>>>
>
>>>
>
>>> I can also use ogrinfo from MAP4W to execute an SQL query directly on
the
>
>>> shapefile and the items in questions are certainly there.
>
>>>
>
>>>
>
>>>
>
>>> In the image below, the green areas are result of the mapfile layer
class
>
>>> EXPRESSION - all are correctly rendered. However, several of them do not
>
>> get
>
>>> generated (HTML imagemap <area> tags not generated) when using a URL and
>
>>> itemnquery/qstring with the identical EXPRESSION.
>
>>>
>
>>>
>
>>>
>
>>> How do I enable debug (enabling mapfile DEBUG does not seem to give any
>
>>> useful info as to why GDAL is skipping certain items) Am I better off
>
>> using
>
>>> MAP4W or similar to get debug/trace info for shapefile queries?
>
>>>
>
>>>
>
>>>
>
>>> john
>
>>>
>
>>>
>
>>>
>
>>>
>
>>>
>
>>>
>
>>>
>
>>>
>
>>>
>
>>> From: mapserver-users-bounces at lists.osgeo.org
>
>>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of W.John
>
>> Guineau
>
>>> Sent: Thursday, December 03, 2009 3:11 PM
>
>>> To: mapserver-users at lists.osgeo.org
>
>>> Subject: [mapserver-users] Shapefile, itemnquery and HTML image map
>
>>> generation problem
>
>>>
>
>>>
>
>>>
>
>>> I have a basic vector shapefile that I am trying to generate HTML
>
>> clickable
>
>>> maps from. It seems to work well for the most part, however there is a
>
>>> problem where some items from the shapefile do not get processed from
the
>
>>> qstring in the browser, but they are processed fine in the mapfile layer
>
>> (to
>
>>> color them differently).
>
>>>
>
>>>
>
>>>
>
>>> So the map that renders shows all the items colored properly as the
layer
>
>>> class defines. Using the exact same list of items in the HTTP query
> string
>
>>> causes several items to be ignored (the HTML image map area is not
>
>>> generated).
>
>>>
>
>>>
>
>>>
>
>>>
>
>>
>
http://localhost/cgi-bin/mapserv?map=/NWPL_CRREL/MLRA/mlra.map&qlayer=coe_m&
>
>
>>
>
>>>
>
>>
>
mode=itemnquery&searchmap=true&layer=states&mapext=-91+34+-89+49&mapsize=600
>
>>>
>
>>
>
+400&qitem=MLRARSYM&qstring=("[MLRARSYM]"%20in%20"102A,102B,102C,103,104,105
>
>>>
>
>>
>
,106,107A,107B,108A,108B,108C,108D,109,110,111A,111B,111C,111D,111E,112,113,
>
>>> 114A,114B,115A,115B,115C")
>
>>>
>
>>>
>
>>>
>
>>> Below is the layer section from the mapfile. I can post whatever else is
>
>>> helpful.
>
>>>
>
>>>
>
>>>
>
>>> Thanks for any help on this.
>
>>>
>
>>>
>
>>>
>
>>> john
>
>>>
>
>>>
>
>>>
>
>>> LAYER
>
>>>
>
>>> NAME map_m
>
>>>
>
>>> DATA "map_shape"
>
>>>
>
>>> TEMPLATE "bodytemplate.html"
>
>>>
>
>>> HEADER "imapheader.html"
>
>>>
>
>>> FOOTER "imapfooter.html"
>
>>>
>
>>> PROJECTION
>
>>>
>
>>> "proj=latlong"
>
>>>
>
>>> "ellps=GRS80"
>
>>>
>
>>> "init=epsg:4326"
>
>>>
>
>>> END
>
>>>
>
>>> TYPE polygon
>
>>>
>
>>> STATUS ON
>
>>>
>
>>> TRANSPARENCY 70
>
>>>
>
>>> CLASS
>
>>>
>
>>> NAME "MLRA"
>
>>>
>
>>> COLOR 0 200 0
>
>>>
>
>>> OUTLINECOLOR 0 0 0
>
>>>
>
>>> EXPRESSION( "[MLRARSYM]" in
>
>>>
>
>>
>
"102A,102B,102C,103,104,105,106,107A,107B,108A,108B,108C,108D,109,110,111A,1
>
>>> 11B,111C,111D,111E,112,113,114A,114B,115A,115B,115C" )
>
>>>
>
>>> END
>
>>>
>
>>> METADATA
>
>>>
>
>>> qstring_validation_pattern ".*"
>
>>>
>
>>> END
>
>>>
>
>>> END
>
>>
>
>> _______________________________________________
>
>> mapserver-users mailing list
>
>> mapserver-users at lists.osgeo.org
>
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
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