Displaying multiple markers that have the same lat/long coordinates in GMap Views

Have you found a solution to this yet? I am having the same problem—in my case, I am geotagging photos and blogs using geocoded values, so there are a lot of nodes added from identical lat/long coordinates.

I'm in a similar position, where I'd like all the nodes in one location to show up in the infowindow.

I've found that all the different clusterers do a piece of what I want, but not all of it.

You may find this patch is useful: http://drupal.org/node/284481

However, that solution does not dump everything into the infowindow.

Jef Poskanzer's Clusterer marker manager puts the nodes that are in the cluster into the infowindow, but there is no setting to only cluster on nodes with the exact same lat/lon. In fact, none of the clusterers have an option to cluster only on identical lat/lon. I'm sure there is a way to alter any of the clusterer javascript files and make that the level of sensitivity for clustering, but I haven't figured out how to do that yet.

wildlife - There is a version 2 of Martin Pearman's MarkerClusterer. See an example here:
http://developer.martinpearman.co.uk/phpfusion7/infusions/google_my_maps...
(check out the blue + symbols)
That's pretty much the functionality we're looking for.

You can download the code here:
http://developer.martinpearman.co.uk/phpfusion7/downloads.php?cat_id=1

The last entry in the new section of Martin's blog (Jan 2010) says that v2 is still unfinished.

I too am working on integrating this with the GMAPS module. I haven't yet tested this v2 w/ the GMAPS module, but will start experimenting soon. I will PM you with an idea.

Hello all,

Did anyone manage to resolve this? I have been asked to prove similar functionality regarding multiple events at a location and my Google search has landed me here.

subscribing

With some modification to the solution provided to ensure multi-language support.

sukr_s, wildlife:

Great work on this. I've applied the patch to gmap/js/marker.js and I see the desired behavior. Attached is a screenshot for everyone's reference (screens show behavior at max-zoom level). It makes sense that these changes have to take place one level above the third party marker clusterer.

Also, for everyone's reference, I am using this in conjunction with Martin Pearman's ClusterMarker for some other desired behavior.

@lookatthosemoose: you can confirm that this is working by changing the status to "reviewed and tested by community", only after which the module maintainers can push this into the module.

I am testing this patch out. However, there is no list below the text.

Is there a required field?

I have the title field in my list of fields, but it still doesn't show up in the list.

I have included the HTML and a screen shot.

Oops wrong image..

It sounds greet, but i cant get it to work.

I applied the patch, so far so good.

Witch settings are to be set in gmap setting spage to get this enabled?
I tried all combinations.

pleas advice.
thx a lot.

@rickyd1 & ikeigenwijs:

The tooltips needs to be set for the gmap row style.
View -> edit -> row style -> gmap -> settings (small gear icon once you have chosen the gmap row style) -> select "Display a tooltip when hovering over markers" -> choose the node title (assuming that your fields has Node: Title selected).

he thx for the help.
But i did all that and i get only 1 title instead of all the ones on that location.

Whitch setting needs to be on admin/settings/gmap ?

No manager (use GMap API directly)
Google's GMarkerManager
GMaps Utility Library MarkerManager
GMaps Utility Library MarkerClusterer
Jef Poskanzer's Clusterer
Martin Pearman's ClusterMarker

I have all of them
thx a lot

I use with No manger option. I have not changed anything after the module was installed.

I tried that option and all the others.
But i have still only 1 tooltip on the vieuw.
When i know there are more than 1 node on the same location.

Can you sent me your version?

thx a lot.

I've attached my view definition. note that i have used the story content type. you'll have to adjust this. also to be very sure you may want to create two nodes with exactly the same lat/log, even a digit less / more / different will not work. if this does not help, attach your view definition and the marker.js
----------------------------------------------
http://www.drupalfx.com

Its the same lat/long
the view en marker .js in attachment

the files

I used your marker.js it works fine. but i cannot import your view since i don't have relevant content type. Thus I cannot help with that info. if you need support, you can contact me via my contact form.
----------------------------------------------
http://www.drupalfx.com

I finally found my problem!!
In the general Gmap settings:
Marker action:
Do nothing
Open info window--> this has to be selected!
Open link -> not this

In the view:
Type ->gmap
Display a tooltip when hovering over markers (Must be cheked)
-> Tooltip field Node: Titel the others did not work

I dont dare tell you how much time i spend on this.
@sukr_s thx for the help, because of you i knew the java script was at least correct.
I m closing this, the fix works.

There is 1 improvement there should be done.
When there is a multiple marker, the hover tooltext is 1 titel instead of the count of the underlying markers.
It gives a wrong impression for the visitors.

Do you think that this solution can be adapted to improve the module, with the petition of the next issue? http://drupal.org/node/414968

I think this should be committed.

@ikeigenwijs- while this may not be the behavior you'd prefer, it's far better than the default behavior currently offered by the module. I think we should start with this commit and work from there.

Moving to D7 because problem exists there as well. Patch is working in D7.

Actually, I did find one issue with this-- there's not way to set the maximum number of marker results that can be displayed in an aggregated marker list. I'm going to implement that feature and submit a patch that will address this issue as well as the one mentioned here:
http://drupal.org/node/1208420

subscribing

subscribing

Hello

I've used the js file from 'ikeigenweis' in this thread. The grouping works, but when clicking on a marker with multiple nodes i get a bubble with the text 'There are multiple items at this location. Click an item title below for more details about the item.' But the generated links don't have content between the a tags.

If i edit the html true firebug i am able to click on the generated links and every thing works fine. Does anyone has an idea?

btw, many thanks to the community for the effort on this issue!

grts

fre

Hello

I've changed the js file a litte bit to work with drupal 7.12, latest views & latest gmap. It just shows the titles of the nodes with a link to the node.

grts

fre

subscribe

subscribe - need to fix this asap also, but for gmap 6.x

#11 works great for me on gmap 6.x-1.x-dev.

To get it to work...
1. Gmap default marker action needs to be pop-up window.
2. No marker manager is needed
3. View page style of Gmap must specify a 'Tool tip' which is used for the link list pop-up.

However...
4. One problem, the marker 'Tool tip' with multiple nodes picks one node at random for the hover text.
How can I change this hover text to be "Click for a list".

@ikeigenwijs also noted the same problem in #24 above.

Any solutions anyone? I am searching the code and the patch for a place to make this change.

Any help would be greatly appreciated.

Jeff

I've updated the patch in #11 in order to display the tooltips properly for list popups as well. If there is one location at a marker the tooltip specified in Views is used. If there is a list of locations the tooltip says 'Click for item list'. I also tuned up the list popup text a bit as well for a more general use case.

Changes were needed in marker.js and gmap.module.txt. It is truly a hack, so perhaps these features can be properly intregated into the module at some point. Also I do not have the tools to make a git patch, so perhaps someone get help there.

One last note. I also included another hack in gmap.module.txt to NOT display a popup at all when there is only one marker on the map. In my use case the popup was problematic for single marker location maps on a node, because the map was smaller, the popup didn't fit in the space and it wasn't needed anyway because the location vcard was already being displayed.

Here is the css I used to make things nice for me.

.gmap-popup {
	width: 300px ! important;
	margin: 0 0 10px 0 ! important;
	font-size: 90% ! important;
}

Hope that helps someone,

Jeff

Thanks for fixing the tooltips, Jeff. To make them translatable, I wrapped the text strings in gmap.module in t(' '). The text strings for the popups in the marker.js I translated in the code for now. I guess the strings could be moved to gmap.module (and then passed to marker.js as variables) to make them translatable as well?

david

probably. my hope is that someone will take my work in #38 and clean it up into a proper patch that is eventually added to the module. the work I did really was a stretch for me, but it does work great.

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Agreed webservant316. I am looking forwarded to someone picking this up and properly integrating it!

I have applied #38 on gmap "6.x-1.1" datestamp = "1278426618". The pop up windows is there. Just no node title were listed.

Then I went inside the marker.js to check showMultipleNodes = function(marker). It seems that the Drupal.settings.gmap['markerlist'][marker.latitude][marker.longitude].['opts']['title_list'] was "" (empty string).

However I did turn on the tool_tips and make sure the view has "Display a tooltip when hovering over markers" of Node:title. Any idea why this happened?

Thanks,
Yeh

hmm, not sure. perhaps check the php code where [marker.latitude][marker.longitude].['opts']['title_list'] is assigned.

can You provide a patch against latest 7.x-2.x, 7.x-1.x ?

test

proper version

#11: 1139088-muliple-node-markers-9-D6.patch queued for re-testing.

These tweaks to marker.js are useful, but after playing around with it for a day I found OpenLayers to be a cleaner solution.

Using OpenLayers, I could apply grouping to my view (grouping rows with the same lat/long position). When using Gmap, grouping just seems to output a map for each group. OpenLayers has great tooltip and popup list functionality too (with scrolling for long lists etc).

I don't know how advanced OpenLayers is for D6, but definitely the way to go for D7.

The marker patch was working great for version 6.x-1.1 but since the API change at Google no longer for 6.x.2.0-beta1. Anybody suffering the same and/or found a solutions already?

not sure what problems you are seeing, but the marker patch still works for me. however, I did need to install this 'location' module patch - http://drupal.org/node/1944120

Installed location module patch you mentioned on latest .dev version as well as marker.js from #38. When I overwrite the [original] marker.js with #38 nog markers are shown on map while - I made an attachment with nearest locations in text output - show some locations upon querry. While using original marker.js which came with module markers are also shown on the map without showing multiple nodes [i.e. 2] on same lat/lon.

Here are all the patched versions of the files I am currently using for my mapping efforts.

location 6.x-3.2
google.inc
gmap 6.x-1.1
gmap.module.txt
gmap.taxonomy.module
marker.hs

These patched files enable me to
1. Display the tooltips properly for list popups.
2. Don't display a popup at all when there is only one marker on the map.

I also use this CSS

.gmap-popup {
width: 300px ! important;
margin: 0 0 10px 0 ! important;
font-size: 90% ! important;
}

And at https://code.google.com/apis/console I have turned on both Google Maps API v2 and Google Maps API v3.

http://drupal.org/patch

This is not patches

Sorry, I don't have the tools to make patches. Maybe else someone can help.

@webservant316, thanks for the files but I'm still not getting markers on the map with markers.js patched.

Are you creating a view with style type 'gmap'? Is it configured properly? You will need to add the field type node:marker. You also need to create a relationship with the Location table and add that field as well. My code also assume a few additional CCK fields for my use case only. There are also tons of settings for the location, gmap, and gmap_location module. Too much to get into here. Sounds like something is not configured properly. Also check your php error log to see if that gives you a clue.

Is there a version for the GM API v3 aswell?? I really need this functionality!

I started a API v3 version myself since i'm kinda in a hurry.

I will upload a version with this post where I've tried to implement these functions. It doesn't work completely.
I can't figure out how I can get the link to open the detailed popup from the combined one.

Maybe someone else can finish this.

I found a solution for what I needed, In my own version (not the one I upload here) I've created a custom function where the popup of a combined marker directly includes the complete text of all the markers it combined.
If anyone is interested in that function, please let me know.

I use 'GMaps Utility Library MarkerClusterer'.
"MarkerManager improved is the open source version of GMarkerManager. To use, you must download it from here and place it in the thirdparty folder."
Menu: admin / config / services / gmap

hi,
thanks for the v3 marker.js. can you please provide the function you used to get the data.

when i use the marker3, i get the text that says there are multiple listings, but it does not show any items below.

also, when i use this with block view it seems to ignore the contextual filters and shows all the locations

thanks.

Sorry for my extremely late responce.
I've uploaded the complete marker.js that I use now. I've added some custom functions to the script that do what I need them to do.

For a working example (it's in dutch): http://www.druyoga.nl/dru-yoga/vind-een-dru-yoga-docent

I just applied the marker js, and it works like a charm for me. Thanks!

It says "undefined". How do I set them to show node titles?

I have used "GMap RMT for markers" option to display data from multiple nodes that have the same lat/long coordinates in one info window.

GMap RMT for markers option is nicely described here: #2108919: RMT option

Once, you have the views power in your hand to create info window... it's easy.

Thank you Devad for this hint.

How do you "transport" the info from the map to the bubbles?

Until now, I used "nid" as RMT field. This works really fine, but then, I only have ONE node in the bubble. I can't find the trick to get several nodes in one bubble.

Configuring it with Views will be easy then, of course. :-)

You are welcome Kniekel

I had a usecase where I had needed to display multiple hotel offers in one bubble.

I got several nodes into one bubble using views relationships. It was easy for me since my offers had "Hotel" (node) entityreference field.

Working example: http://relaxino.com/en/offers

If your nodes with same location are not "grouped" by some kind of reference field but locations are "hardcoded" directly into nodes with same location... that's a different usecase from mine.

6 year old thread. I hope i can help someone in the future! or perhaps turn my code into a patch (i don't yet know how)
This is the portion i rewrote into gmap.module:

if (isset($map['markers'])) {
    foreach ($map['markers'] as $i => $marker) {
      $new_text = $map['markers'][$i]['text'];
      foreach ($map['markers'] as $i2 => $marker2) {
          if($marker  !== $marker2 &&
          $marker['longitude'] == $marker2['longitude'] &&
          $marker['latitude'] == $marker2['latitude'] &&
          (stripos($map['markers'][$i2]['text'], '<br>') === false)){
          $new_text .= '<br>' . $map['markers'][$i2]['text'];
        }
      }
      foreach ($map['markers'] as $i3 => $marker3) {
          if(
          $marker['longitude'] == $marker3['longitude'] &&
          $marker['latitude'] == $marker3['latitude']){
          $map['markers'][$i3]['text'] = $new_text;
        }
      }
    }
    foreach ($map['markers'] as $i => $marker) {
      if (isset($marker['text'])) {
        $map['markers'][$i]['text'] = '<div class="gmap-popup">' . $marker['text'] . '</div>';
      }
    }
  }

1.The first loop is part of the original construction.
2. I then add the $new_text variable and set it to the first marker's text.
3.Then I compare all other markers that have the same latitude and longitude and do not contain a line break(see 4)
4. I concatenate $new_text with a line break and the matching marker's text.
5. I then loop back over the whole stack so that all markers with the same coordinates will have ALL the values, equal to a
$new_text
6. The last loop is part of the original construction that adds a div for the pop up bubble text.

Three 2 extra loops seemed unnecessary, but it was the only way I could prevent duplicate texts.
A note on step 3: Since Gmap is limited to one field per bubble text, I didn't think using a line break would be a bad way to differentiate between which $marker['text] or $marker2['text] had been looped over or not. I suppose you could run stripos to see whether or not the first iteration contains the second within it, but this wasn't working for me.
Hope this helps someone!

Hi cardamomclouds
I have tested your code, and it works, but showing duplicates...
3 times for each result.
Any clues?
Thanks!

Hi charlysole,

Were you able to fix the duplicates issue?

Thank you.

Here is updated code that will not have the duplicates.

 if (isset($map['markers'])) {
    $newMarkers = array();
    foreach ($map['markers'] as $i => $marker) {
        if (array_key_exists($marker['longitude'] . ':' . $marker['latitude'], $newMarkers)) {
          $newMarkers[$marker['longitude'] . ':' . $marker['latitude']]['text'] .= '<br/>' .$marker['text'];
        } else {
          $newMarkers[$marker['longitude'] . ':' . $marker['latitude']] = $marker;
        }
    }
    $map['markers'] = array_values($newMarkers);

    foreach ($map['markers'] as $i => $marker) {
      if (isset($marker['text'])) {
        $map['markers'][$i]['text'] = '<div class="gmap-popup">' . $marker['text'] . '</div>';
      }
    }
  }

Thank you @fillmorejd. That worked for me.

Thank you @fillmorejd. That worked for me too!
Should be included in dev

@fillmorejd could you please create a patch to be included to dev?

Rolled in to a patch. Needs to be tested.

I think i found the right section.
Next time mention the file and the line nr