[mapserver-users] RE: Highlight

Wed Apr 15 09:11:33 EDT 2009

Steve no worries....wasnt trying to shoot your idea down...I am using something similar in another layer and it works great..
All thoughts are welcome...I was thinking about this last night...

There has to be a way to take a selection set from a query and have that highlight features of an existing shapefile from PHP

Just have to find it...Thanks again Steve for your thoughts and help..they are greatly appreciated...

-----Original Message-----
From: Steve Lime [mailto:Steve.Lime at dnr.state.mn.us] 
Sent: Tuesday, April 14, 2009 4:18 PM
To: Jay Kapalczynski; mapserver-users at lists.osgeo.org; Paul T.' 'Moen; David' 'Fawcett
Subject: RE: [mapserver-users] RE: Highlight

This is an example of how to highlight a feature (click on a dot in the application I sent) without
doing query maps or anything like that. You're manipulating a layer filter on-the-fly based on your
search result. This can work with multiple results but is best suited to just a few results. With more
than that you really need to look at some other way to cache features- a queryfile or some sort
of a temp table.

Sorry if I've confused things.

Steve

>>> On 4/14/2009 at 3:23 PM, in message
<D7A5EAC385604446AB1DD24BF4F5A9184FB90EE805 at MG-Mail.ci.maple-grove.mn.us>, Jay
Kapalczynski <jkapalczynski at ci.maple-grove.mn.us> wrote:
> I am having a hard time trying to understand how that applies to what I am 
> doing....I do appreciate the help here.
> Just trying to find a solution here...
> 
>>From my main page I run a query in PHP that returns specific records
> I then move to a different web page that has a couple frames.
> I display the map in one frame and build a table in the 2nd frame that shows 
> the results.
> In the table I have a field that will zoom to and identify that feature in 
> the main map
> 
> The only thing I am missing is after I run the query none of the parcels are 
> highlighted in the map...
> I want to create the table and highlight the returned parcels in the map...
> 
> Getting pretty confused right now...dont know the best way to accomplish 
> this...going in 4 different directions right now..
> The Query is being done in PHP, so I somehow need to take that result (comma 
> delimited string) and get a the PID values from that to show up highlighted 
> in my map..
> 
> Before I go on does anyone have a suggestion as to what would be the best 
> course of action...
> Like Steve said, Like I am doing...
> 
> Thanks Guys...you help is appreciated...
> 
> 
> 
> 
> 
> -----Original Message-----
> From: Fawcett, David [mailto:David.Fawcett at state.mn.us] 
> Sent: Tuesday, April 14, 2009 2:39 PM
> To: Jay Kapalczynski; Steve Lime; mapserver-users at lists.osgeo.org; Paul T.' 
> 'Moen
> Subject: RE: [mapserver-users] RE: Highlight
> 
> Steve is using CGI MapServer instead of php.  
> 
> When you click on a station, you will notice that the outline of the
> station turns yellow.  
> 
> Here is the URL to a tile with a highlighted symbol on it:
> http://maps.dnr.state.mn.us/cgi-bin/mapserv52?map=/usr/local/mapserver/a 
> pps/waters/csg/csg.map&layers=active_site&map_transparent=true&id=0&mode
> =map&map_imagetype=png&station=63023001&mapext=-27687.5+4793250+941687.5
> +5480750&imgext=-27687.5+4793250+941687.5+5480750&map_size=705+500&imgx=
> 352.5&imgy=250&imgxy=705+500
> 
> Notice that he has a layer called 'active_site' and he is passing in the
> station ID use in a class in that layer to turn only that feature
> yellow.  
> 
> When no station is selected, no stations are drawn in the 'active_site'
> layer.
> 
> David.
> 
> -----Original Message-----
> From: mapserver-users-bounces at lists.osgeo.org 
> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Jay
> Kapalczynski
> Sent: Tuesday, April 14, 2009 2:30 PM
> To: 'Steve Lime'; mapserver-users at lists.osgeo.org; Paul T.' 'Moen
> Subject: RE: [mapserver-users] RE: Highlight
> 
> 
> Thanks....but little confused as to what I am look at...
> 
> How is this working?
> 
> 
> 
> -----Original Message-----
> From: Steve Lime [mailto:Steve.Lime at dnr.state.mn.us] 
> Sent: Tuesday, April 14, 2009 1:02 PM
> To: Jay Kapalczynski; mapserver-users at lists.osgeo.org; Paul T.' 'Moen
> Subject: RE: [mapserver-users] RE: Highlight
> 
> This is probably too late to be of use but I've been using a highlight
> layer to achieve this. The layer takes input from a URL so that layer
> filter allows just the desired feature through. Works quite nicely and
> is relatively simple to implement. Here's an OpenLayers site that uses
> this:
> 
>   http://www.dnr.state.mn.us/waters/csg/index_copy.html 
> 
> In this case the highlight is a separate layer but you could just as
> easily return a single map.
> 
> Steve
> 
>>>> On 4/13/2009 at 11:17 AM, in message
> <D7A5EAC385604446AB1DD24BF4F5A91841F1A74D7A at MG-Mail.ci.maple-grove.mn.us 
>>, Jay Kapalczynski <jkapalczynski at ci.maple-grove.mn.us> wrote:
>> So say I have a Database that I am querying...
>> I get the results back with a PID number (unique)
>> This number exists in the Parcels Shapefile so I can go after that 
>> field. I have a map file that is set up for the Parcels, but this is 
>> just there to draw the Parcels... I assume that I would have to modify
> 
>> this one for this to work?
>> 
>> I am just a bit confused on how to get this to work...
>> When I run the code that creates the Table below I want the parcels to
> 
>> also
>> highlight in the map....
>> 
>> Attached is my code that I am using to get the resulting PID Values, 
>> build
>> the table, and populate the last frame showing the Comma Delimited
> String.
>> I just don't know how to apply that to my map?
>> 
>> I attached my code from my PHP page which I hope that someone can at 
>> least
>> put their eyes on...
>> Towards to bottom you will see highlighted in RED the code that I am 
>> building a comma delimited string to populate a variable with all the
> PID 
>> numbers...
>> I assume that I would not need the comma delimited string as I could
> place 
>> the highlighting code inside the while loop to get the parcels
> highlighted...
>> I don't really know...
>> 
>> Any thoughts?
>> 
>> Thanks
>> 
>> 
>> This inside the while loop????
>> 
>> $map = ms_newMapObj(PATH TO YOU MAPFILE);
>> $qlayer = $map->$map->getLayerByName(NAME OF PARCEL LAYER); 
>> $qlayer->queryByAttributes('PID','PID IN (MY COMMA DELIMITED STRING 
>> VARIABLE')',MS_MULTIPLE); $img = $map->drawQuery();
>> header('Content-Type: image/jpeg');
>> $img->saveImage("");
>> 
>> 
>> [cid:image001.jpg at 01C9BC29.7A1ECE10] 
>> 
>> From: mapserver-users-bounces at lists.osgeo.org 
>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Moen,
> Paul T.
>> Sent: Thursday, April 09, 2009 3:15 PM
>> To: mapserver-users at lists.osgeo.org 
>> Subject: Re: [mapserver-users] RE: Highlight
>> 
>> 
>> If the database that you are querying has the same attributes as the 
>> shape
>> file, you can query the Layer that points to the shape file and
> display the 
>> highlighted results on your map.  I know nothing about GeoMOOSE but I
> know it 
>> can be done with php-mapscript.
>> 
>> Regardless of what you are using, you need a map file layer for the 
>> shape
>> file with the parcels.
>> You will then need to use php-mapscript to query that layer with
> something 
>> like
>> $map = ms_newMapObj(PATH TO YOU MAPFILE);
>> $qlayer = $map->$map->getLayerByName(NAME OF PARCEL LAYER);
>> $qlayer->queryByAttributes('PID','PID IN (1,
> 2,7,9,23,87)',MS_MULTIPLE);
>> You will then need to create the output image from query using
> something 
>> like
>> $img = $map->drawQuery();
>> header('Content-Type: image/jpeg');
>> $img->saveImage("");
>> 
>> I can't give you specifics without knowing how GeoMOOSE works, so the 
>> best
>> thing is to look at the documentation for GeoMOOSE if that is what you
> are 
>> using.
>> 
>> On 4/9/09 2:17 PM, "Jay Kapalczynski" 
>> <jkapalczynski at ci.maple-grove.mn.us>
>> wrote:
>> Dang I misspoke...I am sorry...
>> 
>> I am querying a Database for records, these records have a PID (unique
>> Number).
>> These are the records that show up in the Table.
>> 
>> As this happens I have to take the results and run the query against 
>> the
>> parcels to get the features in the Shapefile, then highlight..
>> 
>> If that makes any sense...
>> 
>> If I am in a PHP file and have the records returned from the query
>> (database)...what would I have to do next to take those records and
> run a 
>> query to highlight the parcels (PID to PID)?
>> 
>> Can all of this be accomplished in the PHP file?
>> 
>> Thanks...and sorry for my ignorance...
>> 
>> 
>> 
>> 
>> From: mapserver-users-bounces at lists.osgeo.org 
>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Moen,
> Paul T.
>> Sent: Thursday, April 09, 2009 1:57 PM
>> To: mapserver-users at lists.osgeo.org 
>> Subject: Re: [mapserver-users] RE: Highlight
>> 
>> Set the mapfile QUERYMAP style to highlight 
>> http://mapserver.org/mapfile/querymap.html.   Draw the map using
> drawQuery() 
>> instead of draw().
>> 
>> $img = $map->drawQuery();
>> header('Content-Type: image/jpeg');
>> $img->saveImage("");
>> 
>> On 4/9/09 1:31 PM, "Jay Kapalczynski" 
>> <jkapalczynski at ci.maple-grove.mn.us>
>> wrote:
>> Basically what I have is a query that runs on a shapefile...
>> It returns the records into a table, which I then have the option to
> zoom 
>> to.
>> 
>> I am looking for a bit more....after I run the query (php) I want the
>> returned records to highlight in the map...
>> I can get the Unique identifier but don't know if I can write some
> code in 
>> PHP to highlight those features
>> 
>> I don't even know where to start here...
>> 
>> The query and returning records into the table, as well as, the zoom 
>> to work
>> great...just need the highlight part
>> 
>> Thanks
>> 
>> 
>> 
>> From: Jay Kapalczynski
>> Sent: Thursday, April 09, 2009 1:03 PM
>> To: 'mapserver-users at lists.osgeo.org<mapserver-users at lists.osgeo.org>
>> <mapserver-users at lists.osgeo.org> '
>> Subject: Highlight
>> 
>> Any way to highlight a feature in my map in PHP?
>> 
>> I can grab a unique identifier but can figure out how to highlight 
>> it...
>> 
>> THanks
>> 
>> 
>> Paul
>> 
>> Paul
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