[Mapserver-users] query

Antti.Roppola at brs.gov.au Antti.Roppola at brs.gov.au
Wed Mar 5 22:30:00 PST 2003


I have only taken a cursory glance at your code but:

	$mappointq->setXY($map_x,$map_y);
	$mappointq->setXY($map->width / 2,$map->height / 2);

Won't this set your query point to *only* the latter?
And this won't be in map coordinates, but page coordinates.

Maybe try manually setting to known coordinates and test that
you are actually getting results back before trying to read them:

	$mappointq->setXY(-36.25,145.30);	// pick a known good coordinate

	for ($ilayer=0; $ilayer<=$map->numlayers; $ilayer++)
	{
		$selLayer = $map->GetLayer($ilayer);
		// you'll get output in your web browser here if no
		// results are being returned.
		$selLayer->queryByPoint($mappointq, MS_MULTIPLE, -1);
	}

Hope this helps,

Antti

-----Original Message-----
From: Srinivas Reddy [mailto:csr at rboxtech.com]
Sent: Thursday, 6 March 2003 3:34 PM
To: Mapserver-users at lists.gis.umn.edu
Subject: Re: [Mapserver-users] query


Thanks Eric, But i like to display the query resutls in the same page. I
written like this
$mappointq = ms_newpointObj();
$mappointq->setXY($map_x,$map_y);
$mappointq->setXY($map->width / 2,$map->height / 2);


 for ($ilayer=0; $ilayer<=$map->numlayers; $ilayer++)
 {
   $selLayer = $map->GetLayer($ilayer);

  $queryResult = $selLayer->queryByPoint($mappointq, MS_MULTIPLE, -1);
}

for the above code i did not get any results. So how can i get the results
form the layer? Can anyone help this point.

----- Original Message -----
From: "Eric Bridger" <eric at gomoos.org>
To: <csr at rboxtech.com>
Sent: Wednesday, March 05, 2003 4:54 PM
Subject: Re: [Mapserver-users] query


You will need to define a TEMPLATE "template.html" in your LAYERS.  Even
if you do not want to use the templates.html to display the results, you
still need to have a TEMPLATE in the layer.  The html does not even to
exist.

Hope this helps.
Eric


On Wed, 2003-03-05 at 12:45, Srinivas Challa wrote:
>
> Hi Daniel,
> Thanks for the replay, I need ,?When I am clicking on map selected at
point or in rectangle area content recognitions with PHP.  I had written the
map file like this
> MAP
>   NAME "New Demo"
>   STATUS ON
>   EXTENT 184861.560567497 88197.0005976087 2380774.92575433
826403.167230631
>   SIZE 800 480
>   SHAPEPATH "data"
>   IMAGECOLOR 255 255 255
>   UNITS meters
>
>   WEB
>     IMAGEPATH "/apache/htdocs/tmp/"
>     IMAGEURL "/tmp/"
>
>   METADATA
>       "WMS_TITLE"     "New Demo"
>       "WMS_ABSTRACT"  "Information system"
>       "WMS_ACCESSCONSTRAINTS"    "none"
>       "WMS_ONLINERESOURCE"    "http://localhost:81/demo/demo.phtml"
>       "WMS_SRS"    "EPSG:26915"
>     END
>   END
>   #
>   # Start of reference map
>   #
>   REFERENCE
>     STATUS ON
>     IMAGE "graphics/refreance2.gif"
>     SIZE 200 80
>     COLOR -1 -1 -1
>     OUTLINECOLOR 0 0 255
>     MARKERSIZE 3
>     EXTENT 184861.560567497 88197.0005976087 2380774.92575433
826403.167230631
>
>   END
>
>   QUERYMAP
>     STATUS ON
>     SIZE 400 400
>     STYLE HILITE
>     COLOR 255 0 0
>
>   END
>   #
>   # Start of legend
>   #
>   LEGEND
>     KEYSIZE 18 12
>     LABEL
>       TYPE BITMAP
>       SIZE MEDIUM
>       COLOR 0 0 89
>     END
>     STATUS ON
>   END
>
>   #
>   # Start of scalebar
>   #
>   SCALEBAR
>     STATUS TRUE
>     COLOR 0 0 0
>     IMAGECOLOR 255 255 255
>     OUTLINECOLOR 0 0 0
>     UNITS kilometers
>     INTERVALS 5
>     SIZE  200 5
>     STYLE 0
>     LABEL
>       SIZE tiny
>       COLOR 0 0 0
>     END
>   END
>   #
>   # Start of symbol definitions (we're only using a few)
>   #
>   SYMBOL
>     NAME "circle"
>     TYPE ELLIPSE
>     FILLED TRUE
>     POINTS
>        1 1
>     END
>   END
>
>   # Start of layer definitions
>   LAYER
>     NAME "Boundary"
>     STATUS ON
>     CONNECTIONTYPE OGR
>     CONNECTION "data/Boundary.tab"
>     TYPE POLYGON
>     CLASSITEM "NAME"
>     LABELITEM "NAME"
>     METADATA
>       "DESCRIPTION"   "Daerah"
>       "RESULT_FIELDS" "Name"
>       "WMS_TITLE"    "Selected Information"
>       "WMS_ABSTRACT"    "more information."
>       "WMS_SRS"    "EPSG:26915"
>     END
>     CLASS
>      COLOR 255 255 200
>      OUTLINECOLOR 0 0 0
>      LABEL
>           MINFEATURESIZE 40
>           MINDISTANCE 150
>           POSITION CC
>           SIZE TINY
>           COLOR  0 0 200
>     END
>
>     END
> End
>
>  LAYER
>     NAME "Fed_Rd"
>     STATUS ON
>     CONNECTIONTYPE OGR
>     CONNECTION "data/Fed_Rd.TAB"
>     TYPE LINE
>     #STYLEITEM "AUTO"
>     CLASSITEM "NAME"
>     LABELITEM "Name"
>     METADATA
>       "WMS_TITLE"    "Selected Information"
>       "WMS_ABSTRACT"    "more information."
>       "WMS_SRS"    "EPSG:26915"
>     END
>     CLASS
>      COLOR 255 0 0
>      #OUTLINECOLOR 255 0 0
>     LABEL
>           #MINFEATURESIZE 40
>           #MINDISTANCE 150
>           POSITION CC
>           SIZE tiny
>           COLOR  10 100 100
>   #SHADOWCOLOR  80 80 80
>   #SHADOWSIZE 1 1
>     END
>     END
>   END
>
>  LAYER
>     NAME "Highway"
>     STATUS ON
>     CONNECTIONTYPE OGR
>     CONNECTION "data/Highway.TAB"
>     TYPE LINE
>    # STYLEITEM "AUTO"
>     CLASSITEM "NAME"
>     LABELITEM "NAME"
>
>     METADATA
>       "WMS_TITLE"    "Selected Information"
>       "WMS_ABSTRACT" "more information."
>       "WMS_SRS"    "EPSG:26915"
>     END
>
>     CLASS
> #SYMBOL "MYSYMBOL"
> COLOR  46 210 200
>     LABEL
>           MINFEATURESIZE 40
>           MINDISTANCE 150
>           POSITION CC
>           SIZE TINY
>           COLOR  0 800 200
>     END
>     END
>   END
>
>
>
>  LAYER
>     NAME "Railways"
>     STATUS ON
>     CONNECTIONTYPE OGR
>     CONNECTION "data/Railway.TAB"
>     TYPE LINE
>  STYLEITEM "AUTO"
>         CLASSITEM "NAME"
>  LABELITEM "NAME"
>
>     METADATA
>       "WMS_TITLE"    "Selected Information"
>       "WMS_ABSTRACT"    "more information."
>       "WMS_SRS"    "EPSG:26915"
>     END
>     CLASS
>   NAME "Rail Lines"
>   COLOR 0 0 0
>   OVERLAYSYMBOL dashed2
>   OVERLAYCOLOR 0 0 0
>   OVERLAYSIZE 3
> LABEL
>   MINFEATURESIZE 40
>   MINDISTANCE 150
>   POSITION CC
>   SIZE TINY
>   COLOR 100 0 200
> END
>     END
>   END
>
>
>  LAYER
>     NAME "State_Rd"
>     STATUS ON
>     CONNECTIONTYPE OGR
>     CONNECTION "data/State_Rd.TAB"
>     TYPE LINE
>     #STYLEITEM "AUTO"
>     CLASSITEM "NAME"
>     LABELITEM "NAME"
>
>     METADATA
>       "WMS_TITLE"    "Selected Information"
>       "WMS_ABSTRACT"    "more information."
>       "WMS_SRS"    "EPSG:26915"
>     END
>     CLASS
> COLOR 180 180 180
>     LABEL
>           MINFEATURESIZE 40
>           MINDISTANCE 150
>           POSITION CC
>           SIZE TINY
>           COLOR  220 100 0
>     END
>     END
>   END
>     # Seven Layer Under tesing Process...  sucessed
>  LAYER
>     NAME "Towns"
>     STATUS ON
>     CONNECTIONTYPE OGR
>     CONNECTION "data/ Towns.TAB"
>     TYPE POINT
>     CLASSITEM "TOWN"
>     LABELITEM "Town"
>
>    METADATA
>       "DESCRIPTION"   " Towns"
>       "RESULT_FIELDS" "Town"
>       "WMS_TITLE"    "Selected Information"
>       "WMS_ABSTRACT"    "more information."
>       "WMS_SRS"    "EPSG:26915"
>     END
>     CLASS
>         SYMBOL 'symbols/town.gif'
>       LABEL
>           MINFEATURESIZE 100
>           MINDISTANCE 450
>           POSITION LC
>           SIZE TINY
>           COLOR 40 100 40
>       END
>     END
>   END
>
>
>
> # End of the map
> END
> For the above map Script is working fine. But while I am querying  I did
not getting the results. How can query the map using PHP at point and
selected rectangle area.
> Is any one can send the script for this.
>
> In this project i am not using applets. Just Map querying on 7 layers
using php.
>
> srinivasa reddy Challa
>
>
>
> Srinivas Reddy wrote:
> >
> > Now am new to this technologies but I had done some of project with
> > the reference of DM solutions map reference. In DM
> > solutions they are done using SHP data files. But  I am using  "*.Tab"
> > data. How can I query the content of the "*.TAB"layers
> > using php and mapscript.  This is my problem. This is my email id :
> > csr at rboxtech.com or reddy_challa at yahoo.com
>
>
> You will have to provide more details on what you are trying to do
> exactly if you want anyone to be able to help.
>
> If by "query the contents of .tab layers" you mean clicking on a map
> image and selecting features from a TAB layer then this works the same
> way for shapefiles and for .tab files.  The only difference is that you
> need MapServer with OGR support, and you define an OGR CONNECTION in
> your LAYER.  For more details on using OGR CONNECTIONS, see the OGR
> HOWTO at http://mapserver.gis.umn.edu/doc36/ogr-howto.html
>
> Daniel
> --
> ------------------------------------------------------------
>  Daniel Morissette               morissette at dmsolutions.ca
>  DM Solutions Group              http://www.dmsolutions.ca/
> ------------------------------------------------------------
> _______________________________________________
> Mapserver-users mailing list
> Mapserver-users at lists.gis.umn.edu
> http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
>
>
>
>
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>



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