Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver
Hi All, I am trying to integrate the census tracts on the google maps base. I am using the tile mode and have successfully drawn the shape files over the states of USA. I have some data in an access database that I need to show to the user when he selects a particular census tract (the shapes are polygons). However, since its a tile mode that I am using on google maps, I am unable to understand how do I get the information from mapserver as to which census tract was selected by the user? Is there a way mapserver can send me the polygon selected based on a co-ordinate lying inside the polygon? I know there is a way by using queries and a querymap for doing this. The query that I am using is as follows http://127.0.0.1:8123/cgi-bin/mapserv.exe?map=C:/ms4w/apps/census/testMap.mapmode=querymapxy=38.87795 -77.098617 I am providing a template in my map file that has the tract variables. However, the result is always the same msQueryByPoint(): Search returned no results. No matching record(s) found. Is it that mapserver is trying to look for a point feature in the location specifies by mapxy in the link above? How do I make mapserver to look for a polygon enclosing this co-ordinate and return me the result? I am attaching my mapfile also for reference. MAP NAME testMap STATUS ON SIZE 600 300 EXTENT -84 37 -75 40 UNITS DD SHAPEPATH data IMAGECOLOR 255 255 255 CONFIG MS_ERRORFILE ms_error.txt IMAGETYPE PNG WEB IMAGEPATH /ms4w/tmp/ms_tmp/ IMAGEURL /ms_tmp/ END QUERYMAP STATUS ON STYLE HILITE END LAYER NAME virginia STATUS DEFAULT TYPE polygon DATA tr51_d00 DEBUG 5 TOLERANCE 1000 TOLERANCEUNITS pixels TEMPLATE bodytemplate.html HEADER imapheader.html FOOTER imapfooter.html CLASS STYLE OUTLINECOLOR 128 128 128 COLOR 153 205 255 END TEMPLATE pointTemplate.html END END END Thanks, Varun On Mon, May 4, 2009 at 3:30 PM, Varun saraf vsaraf@gmail.com wrote: Hi Steve, If I provide Mapserver with a point x,y in WGS84 projection (from google maps) as a query, can mapserver give me the enclosing polygon information (using point-in-polygon method or something else)? If yes, how? I have already drawn the polygons on google map using tile mode. Can you suggest me a book/doc that helps with querying mapserver? Thanks, Varun On Sun, May 3, 2009 at 9:56 AM, Steve Lime steve.l...@dnr.state.mn.us wrote: Both examples show how to do this. You have to create a query using the coordinate from Google to access MapServer. My example uses the principle to query points but would work for polygons (which are actually easier). You could issue straight MapServer queries: http://.../cgi-bin/mapserv?mode=querymap=something.mapmapxy=google_x+google_yqlayer=the_polygons or do a WFS query. Since you're already using straight MapServer the former would probably be easiest. Steve Varun saraf vsaraf@gmail.com 05/02/09 1:34 PM Hi, Thanks a lot Jim and Steve. These are great examples but I am dividing each state of USA into about 1300 polygons and I need a way to find which polygon is selected by the user. I tried building Gpolygons using the polygon data that i have (after converting it into a GML file) but it makes Google damn slow to redraw the polygons on zoom in and zoom out. The tile mode in mapserver is much faster. Now, After I draw the polygon in tile mode using mapserver, Is there a way Mapserver can return to me the specific polygon info (say co-ordinates or any other data in the dbf file relating to that polygon) when I select it on google map? Goggle I believe can give me the exact co-ordinates of the point I clicked. Can mapserver use this point location to find which polygon was selected? Thanks, Varun 2009/5/2 Jim Strevinas voas_...@hotmail.com: A beautiful example that uses the Google Maps API is: http://www.dyasdesigns.com/geoxml/gmlusa.htm It makes use of an API plugin called geoxml that can load XML data which can be produced by a WFS server. In the source code, a static GML file is used but a google search shows that it can connect to a live WFS server using the URL. Date: Sat, 2 May 2009 09:28:01 -0500 From: steve.l...@dnr.state.mn.us To: vsaraf@gmail.com Subject: Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver CC: mapserver-users@lists.osgeo.org One way to do that is to construct MapServer queries based on the event and submit them using AJAX. This site does just that but with OpenLayers: http://www.dnr.state.mn.us/waters/csg/index_copy.html Click on the dots and a MapServer query is done behind the scenes. If successful a little window control is populated, if not, then nothing happens. Simple templates are used to present the information. Steve
Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver
Something's backwards, you're mapxy is 38.87795, -77.098617 but your extents are neg,pos,neg,pos? Also is your data in lat/lon? Steve On 5/7/2009 at 12:27 PM, in message 6db14d250905071027j7ff0aac8j30edeb7f8c938...@mail.gmail.com, Varun saraf vsaraf@gmail.com wrote: Hi All, I am trying to integrate the census tracts on the google maps base. I am using the tile mode and have successfully drawn the shape files over the states of USA. I have some data in an access database that I need to show to the user when he selects a particular census tract (the shapes are polygons). However, since its a tile mode that I am using on google maps, I am unable to understand how do I get the information from mapserver as to which census tract was selected by the user? Is there a way mapserver can send me the polygon selected based on a co-ordinate lying inside the polygon? I know there is a way by using queries and a querymap for doing this. The query that I am using is as follows http://127.0.0.1:8123/cgi-bin/mapserv.exe?map=C:/ms4w/apps/census/testMap.map; mode=querymapxy=38.87795 -77.098617 I am providing a template in my map file that has the tract variables. However, the result is always the same msQueryByPoint(): Search returned no results. No matching record(s) found. Is it that mapserver is trying to look for a point feature in the location specifies by mapxy in the link above? How do I make mapserver to look for a polygon enclosing this co-ordinate and return me the result? I am attaching my mapfile also for reference. MAP NAME testMap STATUS ON SIZE 600 300 EXTENT -84 37 -75 40 UNITS DD SHAPEPATH data IMAGECOLOR 255 255 255 CONFIG MS_ERRORFILE ms_error.txt IMAGETYPE PNG WEB IMAGEPATH /ms4w/tmp/ms_tmp/ IMAGEURL /ms_tmp/ END QUERYMAP STATUS ON STYLE HILITE END LAYER NAME virginia STATUS DEFAULT TYPE polygon DATA tr51_d00 DEBUG 5 TOLERANCE 1000 TOLERANCEUNITS pixels TEMPLATE bodytemplate.html HEADER imapheader.html FOOTER imapfooter.html CLASS STYLE OUTLINECOLOR 128 128 128 COLOR 153 205 255 END TEMPLATE pointTemplate.html END END END Thanks, Varun On Mon, May 4, 2009 at 3:30 PM, Varun saraf vsaraf@gmail.com wrote: Hi Steve, If I provide Mapserver with a point x,y in WGS84 projection (from google maps) as a query, can mapserver give me the enclosing polygon information (using point-in-polygon method or something else)? If yes, how? I have already drawn the polygons on google map using tile mode. Can you suggest me a book/doc that helps with querying mapserver? Thanks, Varun On Sun, May 3, 2009 at 9:56 AM, Steve Lime steve.l...@dnr.state.mn.us wrote: Both examples show how to do this. You have to create a query using the coordinate from Google to access MapServer. My example uses the principle to query points but would work for polygons (which are actually easier). You could issue straight MapServer queries: http://.../cgi-bin/mapserv?mode=querymap=something.mapmapxy=google_x+google_y qlayer=the_polygons or do a WFS query. Since you're already using straight MapServer the former would probably be easiest. Steve Varun saraf vsaraf@gmail.com 05/02/09 1:34 PM Hi, Thanks a lot Jim and Steve. These are great examples but I am dividing each state of USA into about 1300 polygons and I need a way to find which polygon is selected by the user. I tried building Gpolygons using the polygon data that i have (after converting it into a GML file) but it makes Google damn slow to redraw the polygons on zoom in and zoom out. The tile mode in mapserver is much faster. Now, After I draw the polygon in tile mode using mapserver, Is there a way Mapserver can return to me the specific polygon info (say co-ordinates or any other data in the dbf file relating to that polygon) when I select it on google map? Goggle I believe can give me the exact co-ordinates of the point I clicked. Can mapserver use this point location to find which polygon was selected? Thanks, Varun 2009/5/2 Jim Strevinas voas_...@hotmail.com: A beautiful example that uses the Google Maps API is: http://www.dyasdesigns.com/geoxml/gmlusa.htm It makes use of an API plugin called geoxml that can load XML data which can be produced by a WFS server. In the source code, a static GML file is used but a google search shows that it can connect to a live WFS server using the URL. Date: Sat, 2 May 2009 09:28:01 -0500 From: steve.l...@dnr.state.mn.us To: vsaraf@gmail.com Subject: Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver CC: mapserver-users@lists.osgeo.org One way to do that is to construct MapServer queries based
Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver
://www.dyasdesigns.com/geoxml/gmlusa.htm It makes use of an API plugin called geoxml that can load XML data which can be produced by a WFS server. In the source code, a static GML file is used but a google search shows that it can connect to a live WFS server using the URL. Date: Sat, 2 May 2009 09:28:01 -0500 From: steve.l...@dnr.state.mn.us To: vsaraf@gmail.com Subject: Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver CC: mapserver-users@lists.osgeo.org One way to do that is to construct MapServer queries based on the event and submit them using AJAX. This site does just that but with OpenLayers: http://www.dnr.state.mn.us/waters/csg/index_copy.html Click on the dots and a MapServer query is done behind the scenes. If successful a little window control is populated, if not, then nothing happens. Simple templates are used to present the information. Steve Varun saraf vsaraf@gmail.com 05/01/09 11:54 AM Hi, I just had a look at ImageMap Template on Output generation...Can this be used on google maps to get information pooped up on a mouseover or mouseclick in tile mode? If not, what is it that I can do to get a similar result when using Mapserver with google maps? Regards, Varun On Thu, Apr 30, 2009 at 6:30 PM, Varun saraf vsaraf@gmail.com wrote: Hi, I have successfully drawn layers on of google maps as base using mapserver. However, I am trying to figure out how to get data dynamically displayed on the web page when a user clicks on a certain area. For example, I have divided the entire state of virginia into many sectors (using a polygon shp file). My requirement is that I want data to come up on the map/web page when the user selects a particular sector. I know google provides me with an event api for clicking on the map but how do I pass this event to mapserver so it can send me the label for that sector from the shape file? I need to be able to recognize what sector the user has clicked. Is this possible using just the mapserv cgi script and a map file or a MapScript has to be written/used? Can someone point me in the right direction here? Even providing the link for a previous discussion on this topic would help. Thanks, Varun ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! Try it! ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver
map? Goggle I believe can give me the exact co-ordinates of the point I clicked. Can mapserver use this point location to find which polygon was selected? Thanks, Varun 2009/5/2 Jim Strevinas voas_...@hotmail.com: A beautiful example that uses the Google Maps API is: http://www.dyasdesigns.com/geoxml/gmlusa.htm It makes use of an API plugin called geoxml that can load XML data which can be produced by a WFS server. In the source code, a static GML file is used but a google search shows that it can connect to a live WFS server using the URL. Date: Sat, 2 May 2009 09:28:01 -0500 From: steve.l...@dnr.state.mn.us To: vsaraf@gmail.com Subject: Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver CC: mapserver-users@lists.osgeo.org One way to do that is to construct MapServer queries based on the event and submit them using AJAX. This site does just that but with OpenLayers: http://www.dnr.state.mn.us/waters/csg/index_copy.html Click on the dots and a MapServer query is done behind the scenes. If successful a little window control is populated, if not, then nothing happens. Simple templates are used to present the information. Steve Varun saraf vsaraf@gmail.com 05/01/09 11:54 AM Hi, I just had a look at ImageMap Template on Output generation...Can this be used on google maps to get information pooped up on a mouseover or mouseclick in tile mode? If not, what is it that I can do to get a similar result when using Mapserver with google maps? Regards, Varun On Thu, Apr 30, 2009 at 6:30 PM, Varun saraf vsaraf@gmail.com wrote: Hi, I have successfully drawn layers on of google maps as base using mapserver. However, I am trying to figure out how to get data dynamically displayed on the web page when a user clicks on a certain area. For example, I have divided the entire state of virginia into many sectors (using a polygon shp file). My requirement is that I want data to come up on the map/web page when the user selects a particular sector. I know google provides me with an event api for clicking on the map but how do I pass this event to mapserver so it can send me the label for that sector from the shape file? I need to be able to recognize what sector the user has clicked. Is this possible using just the mapserv cgi script and a map file or a MapScript has to be written/used? Can someone point me in the right direction here? Even providing the link for a previous discussion on this topic would help. Thanks, Varun ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! Try it! ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver
Hi Steve, If I provide Mapserver with a point x,y in WGS84 projection (from google maps) as a query, can mapserver give me the enclosing polygon information (using point-in-polygon method or something else)? If yes, how? I have already drawn the polygons on google map using tile mode. Can you suggest me a book/doc that helps with querying mapserver? Thanks, Varun On Sun, May 3, 2009 at 9:56 AM, Steve Lime steve.l...@dnr.state.mn.us wrote: Both examples show how to do this. You have to create a query using the coordinate from Google to access MapServer. My example uses the principle to query points but would work for polygons (which are actually easier). You could issue straight MapServer queries: http://.../cgi-bin/mapserv?mode=querymap=something.mapmapxy=google_x+google_yqlayer=the_polygons or do a WFS query. Since you're already using straight MapServer the former would probably be easiest. Steve Varun saraf vsaraf@gmail.com 05/02/09 1:34 PM Hi, Thanks a lot Jim and Steve. These are great examples but I am dividing each state of USA into about 1300 polygons and I need a way to find which polygon is selected by the user. I tried building Gpolygons using the polygon data that i have (after converting it into a GML file) but it makes Google damn slow to redraw the polygons on zoom in and zoom out. The tile mode in mapserver is much faster. Now, After I draw the polygon in tile mode using mapserver, Is there a way Mapserver can return to me the specific polygon info (say co-ordinates or any other data in the dbf file relating to that polygon) when I select it on google map? Goggle I believe can give me the exact co-ordinates of the point I clicked. Can mapserver use this point location to find which polygon was selected? Thanks, Varun 2009/5/2 Jim Strevinas voas_...@hotmail.com: A beautiful example that uses the Google Maps API is: http://www.dyasdesigns.com/geoxml/gmlusa.htm It makes use of an API plugin called geoxml that can load XML data which can be produced by a WFS server. In the source code, a static GML file is used but a google search shows that it can connect to a live WFS server using the URL. Date: Sat, 2 May 2009 09:28:01 -0500 From: steve.l...@dnr.state.mn.us To: vsaraf@gmail.com Subject: Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver CC: mapserver-users@lists.osgeo.org One way to do that is to construct MapServer queries based on the event and submit them using AJAX. This site does just that but with OpenLayers: http://www.dnr.state.mn.us/waters/csg/index_copy.html Click on the dots and a MapServer query is done behind the scenes. If successful a little window control is populated, if not, then nothing happens. Simple templates are used to present the information. Steve Varun saraf vsaraf@gmail.com 05/01/09 11:54 AM Hi, I just had a look at ImageMap Template on Output generation...Can this be used on google maps to get information pooped up on a mouseover or mouseclick in tile mode? If not, what is it that I can do to get a similar result when using Mapserver with google maps? Regards, Varun On Thu, Apr 30, 2009 at 6:30 PM, Varun saraf vsaraf@gmail.com wrote: Hi, I have successfully drawn layers on of google maps as base using mapserver. However, I am trying to figure out how to get data dynamically displayed on the web page when a user clicks on a certain area. For example, I have divided the entire state of virginia into many sectors (using a polygon shp file). My requirement is that I want data to come up on the map/web page when the user selects a particular sector. I know google provides me with an event api for clicking on the map but how do I pass this event to mapserver so it can send me the label for that sector from the shape file? I need to be able to recognize what sector the user has clicked. Is this possible using just the mapserv cgi script and a map file or a MapScript has to be written/used? Can someone point me in the right direction here? Even providing the link for a previous discussion on this topic would help. Thanks, Varun ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! Try it! ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo
Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver
Both examples show how to do this. You have to create a query using the coordinate from Google to access MapServer. My example uses the principle to query points but would work for polygons (which are actually easier). You could issue straight MapServer queries: http://.../cgi-bin/mapserv?mode=querymap=something.mapmapxy=google_x+google_yqlayer=the_polygons or do a WFS query. Since you're already using straight MapServer the former would probably be easiest. Steve Varun saraf vsaraf@gmail.com 05/02/09 1:34 PM Hi, Thanks a lot Jim and Steve. These are great examples but I am dividing each state of USA into about 1300 polygons and I need a way to find which polygon is selected by the user. I tried building Gpolygons using the polygon data that i have (after converting it into a GML file) but it makes Google damn slow to redraw the polygons on zoom in and zoom out. The tile mode in mapserver is much faster. Now, After I draw the polygon in tile mode using mapserver, Is there a way Mapserver can return to me the specific polygon info (say co-ordinates or any other data in the dbf file relating to that polygon) when I select it on google map? Goggle I believe can give me the exact co-ordinates of the point I clicked. Can mapserver use this point location to find which polygon was selected? Thanks, Varun 2009/5/2 Jim Strevinas voas_...@hotmail.com: A beautiful example that uses the Google Maps API is: http://www.dyasdesigns.com/geoxml/gmlusa.htm It makes use of an API plugin called geoxml that can load XML data which can be produced by a WFS server. In the source code, a static GML file is used but a google search shows that it can connect to a live WFS server using the URL. Date: Sat, 2 May 2009 09:28:01 -0500 From: steve.l...@dnr.state.mn.us To: vsaraf@gmail.com Subject: Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver CC: mapserver-users@lists.osgeo.org One way to do that is to construct MapServer queries based on the event and submit them using AJAX. This site does just that but with OpenLayers: http://www.dnr.state.mn.us/waters/csg/index_copy.html Click on the dots and a MapServer query is done behind the scenes. If successful a little window control is populated, if not, then nothing happens. Simple templates are used to present the information. Steve Varun saraf vsaraf@gmail.com 05/01/09 11:54 AM Hi, I just had a look at ImageMap Template on Output generation...Can this be used on google maps to get information pooped up on a mouseover or mouseclick in tile mode? If not, what is it that I can do to get a similar result when using Mapserver with google maps? Regards, Varun On Thu, Apr 30, 2009 at 6:30 PM, Varun saraf vsaraf@gmail.com wrote: Hi, I have successfully drawn layers on of google maps as base using mapserver. However, I am trying to figure out how to get data dynamically displayed on the web page when a user clicks on a certain area. For example, I have divided the entire state of virginia into many sectors (using a polygon shp file). My requirement is that I want data to come up on the map/web page when the user selects a particular sector. I know google provides me with an event api for clicking on the map but how do I pass this event to mapserver so it can send me the label for that sector from the shape file? I need to be able to recognize what sector the user has clicked. Is this possible using just the mapserv cgi script and a map file or a MapScript has to be written/used? Can someone point me in the right direction here? Even providing the link for a previous discussion on this topic would help. Thanks, Varun ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! Try it! ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver
One way to do that is to construct MapServer queries based on the event and submit them using AJAX. This site does just that but with OpenLayers: http://www.dnr.state.mn.us/waters/csg/index_copy.html Click on the dots and a MapServer query is done behind the scenes. If successful a little window control is populated, if not, then nothing happens. Simple templates are used to present the information. Steve Varun saraf vsaraf@gmail.com 05/01/09 11:54 AM Hi, I just had a look at ImageMap Template on Output generation...Can this be used on google maps to get information pooped up on a mouseover or mouseclick in tile mode? If not, what is it that I can do to get a similar result when using Mapserver with google maps? Regards, Varun On Thu, Apr 30, 2009 at 6:30 PM, Varun saraf vsaraf@gmail.com wrote: Hi, I have successfully drawn layers on of google maps as base using mapserver. However, I am trying to figure out how to get data dynamically displayed on the web page when a user clicks on a certain area. For example, I have divided the entire state of virginia into many sectors (using a polygon shp file). My requirement is that I want data to come up on the map/web page when the user selects a particular sector. I know google provides me with an event api for clicking on the map but how do I pass this event to mapserver so it can send me the label for that sector from the shape file? I need to be able to recognize what sector the user has clicked. Is this possible using just the mapserv cgi script and a map file or a MapScript has to be written/used? Can someone point me in the right direction here? Even providing the link for a previous discussion on this topic would help. Thanks, Varun ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
RE: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver
A beautiful example that uses the Google Maps API is: http://www.dyasdesigns.com/geoxml/gmlusa.htm It makes use of an API plugin called geoxml that can load XML data which can be produced by a WFS server. In the source code, a static GML file is used but a google search shows that it can connect to a live WFS server using the URL. Date: Sat, 2 May 2009 09:28:01 -0500 From: steve.l...@dnr.state.mn.us To: vsaraf@gmail.com Subject: Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver CC: mapserver-users@lists.osgeo.org One way to do that is to construct MapServer queries based on the event and submit them using AJAX. This site does just that but with OpenLayers: http://www.dnr.state.mn.us/waters/csg/index_copy.html Click on the dots and a MapServer query is done behind the scenes. If successful a little window control is populated, if not, then nothing happens. Simple templates are used to present the information. Steve Varun saraf vsaraf@gmail.com 05/01/09 11:54 AM Hi, I just had a look at ImageMap Template on Output generation...Can this be used on google maps to get information pooped up on a mouseover or mouseclick in tile mode? If not, what is it that I can do to get a similar result when using Mapserver with google maps? Regards, Varun On Thu, Apr 30, 2009 at 6:30 PM, Varun saraf vsaraf@gmail.com wrote: Hi, I have successfully drawn layers on of google maps as base using mapserver. However, I am trying to figure out how to get data dynamically displayed on the web page when a user clicks on a certain area. For example, I have divided the entire state of virginia into many sectors (using a polygon shp file). My requirement is that I want data to come up on the map/web page when the user selects a particular sector. I know google provides me with an event api for clicking on the map but how do I pass this event to mapserver so it can send me the label for that sector from the shape file? I need to be able to recognize what sector the user has clicked. Is this possible using just the mapserv cgi script and a map file or a MapScript has to be written/used? Can someone point me in the right direction here? Even providing the link for a previous discussion on this topic would help. Thanks, Varun ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users _ Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! http://spaces.live.com/spacesapi.aspx?wx_action=createwx_url=/friends.aspxmkt=en-us___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver
Hi, Thanks a lot Jim and Steve. These are great examples but I am dividing each state of USA into about 1300 polygons and I need a way to find which polygon is selected by the user. I tried building Gpolygons using the polygon data that i have (after converting it into a GML file) but it makes Google damn slow to redraw the polygons on zoom in and zoom out. The tile mode in mapserver is much faster. Now, After I draw the polygon in tile mode using mapserver, Is there a way Mapserver can return to me the specific polygon info (say co-ordinates or any other data in the dbf file relating to that polygon) when I select it on google map? Goggle I believe can give me the exact co-ordinates of the point I clicked. Can mapserver use this point location to find which polygon was selected? Thanks, Varun 2009/5/2 Jim Strevinas voas_...@hotmail.com: A beautiful example that uses the Google Maps API is: http://www.dyasdesigns.com/geoxml/gmlusa.htm It makes use of an API plugin called geoxml that can load XML data which can be produced by a WFS server. In the source code, a static GML file is used but a google search shows that it can connect to a live WFS server using the URL. Date: Sat, 2 May 2009 09:28:01 -0500 From: steve.l...@dnr.state.mn.us To: vsaraf@gmail.com Subject: Re: [mapserver-users] Re: Dynamic data loading using Google maps andMapserver CC: mapserver-users@lists.osgeo.org One way to do that is to construct MapServer queries based on the event and submit them using AJAX. This site does just that but with OpenLayers: http://www.dnr.state.mn.us/waters/csg/index_copy.html Click on the dots and a MapServer query is done behind the scenes. If successful a little window control is populated, if not, then nothing happens. Simple templates are used to present the information. Steve Varun saraf vsaraf@gmail.com 05/01/09 11:54 AM Hi, I just had a look at ImageMap Template on Output generation...Can this be used on google maps to get information pooped up on a mouseover or mouseclick in tile mode? If not, what is it that I can do to get a similar result when using Mapserver with google maps? Regards, Varun On Thu, Apr 30, 2009 at 6:30 PM, Varun saraf vsaraf@gmail.com wrote: Hi, I have successfully drawn layers on of google maps as base using mapserver. However, I am trying to figure out how to get data dynamically displayed on the web page when a user clicks on a certain area. For example, I have divided the entire state of virginia into many sectors (using a polygon shp file). My requirement is that I want data to come up on the map/web page when the user selects a particular sector. I know google provides me with an event api for clicking on the map but how do I pass this event to mapserver so it can send me the label for that sector from the shape file? I need to be able to recognize what sector the user has clicked. Is this possible using just the mapserv cgi script and a map file or a MapScript has to be written/used? Can someone point me in the right direction here? Even providing the link for a previous discussion on this topic would help. Thanks, Varun ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! Try it! ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
