An object used to indicate a position, place, or route

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22
votes
4answers
22k views

How to define layer order in Openlayers?

I have a marker layer, two vector layers and two raster layers. The marker layer gets covered by the two raster layers. Is there a way to move the marker layer always on top? Edited: The order of ...
15
votes
3answers
767 views

Zigzag Line Symbol in QGIS

I'm looking for a zigzag line symbol in QGIS. Is there perhaps an easy way to do this that I'm missing? I have tried creating a marker line using a simple triangle marker (^) and adjusting the size of ...
14
votes
3answers
1k views

How can I represent distance using the dashes or markers of a vector line?

I am a very basic user and dont know the lingo to get to the gist of my question so some background might help. Ive volunteered to create a pre-incident planning system for my rural fire department. ...
9
votes
1answer
14k views

Change marker icon on click using leaflet

I have a map with many (>100) markers on it. I would like to make it so that clicking on these changes the icon to a highlighted version. I've created two custom icons, one regular, and one ...
8
votes
1answer
5k views

Using Drop Markers and MarkerClusterer together?

I want to create a rather visually appealing representation of time-series data (Costco Store Locations w/ opening dates). My idea was to plot them on a map, in time-series, but it seems that the ...
7
votes
6answers
7k views

How do I cluster XY point data? (ArcGIS 9.3)

I have a whole bunch of icons displaying on a map, I want these clustered together as was suggested to me for a different question here... ArcGIS 9.3. How do I increase Picture Marker Symbol ...
7
votes
3answers
6k views

Leaflet / Google Map baselayer / markers not visible

New to Leaflet, currently trying to migrate a project from native Google Maps to Leaflet; having been drawn to Leaflet by the layer management and options of using better 'roadmap' style basemaps. ...
5
votes
3answers
9k views

How to change Leaflet marker color on mouseover?

I'm having a hard time figuring out why the Leaflet method setstyle will change the color of a polygon but not the color of my markers. Polygon works fine: But the markers won't change colors: ...
5
votes
1answer
15k views

How can I change the style of marker in leaflet (from GeoJSON)?

I'm serving GeoJSON to leaflet and by default it get a blue icon marker. I'm trying to change the style so I'll be able to use the feature properties as part of the style , but no matter what I do , ...
5
votes
2answers
469 views

How to put 20K points on a map

I have an sqlite 3 database with 20K entries each of which has lat long data and I wanted to create a layer from that data. From what I have read I need to import it into a postrgres DB but I'm not ...
5
votes
1answer
7k views

How to open popup on mouseover in Leaflet? [duplicate]

Possible Duplicate: How to show a popup on mouse-over, not on click? I'm working with Leaflet library. I defined L.layerGroup and add some markers to the group. Can somebody help me with ...
5
votes
1answer
52 views

Location/format of inserted pictures used for marker symbols in ArcGIS Desktop?

I have an old mxd that uses several hundred custom made picture marker symbols. We don't know where the image files that were inserted as pictures marker symbols are, or what format they were in. ...
4
votes
2answers
3k views

Leaflet drop markers animation

Is it possible to do drop markers on the map like in google maps (https://google-developers.appspot.com/maps/documentation/javascript/examples/marker-animations-iteration) in leaflet
4
votes
2answers
5k views

Is there a library to make custom markers for Google Maps API V3 by setting the marker's icon, labels and opacity?

Is there a library to make custom markers for Google Maps V3 by controling the icon, labels and opacity? This library for Google Maps API V2, Labeled Markers, seems OK, but I was hoping for a V3 ...
4
votes
2answers
536 views

Loss of synchronization between map and markers (Leaflet + Google Maps)

I have a problem using the markers with Google Maps with Leaflet. In this example you can see the difference between Google Maps or OSM. Using OSM, the marker moves with the map but when using Google ...
4
votes
1answer
1k views

Show markers only at certain zoom levels

I'm building a cycle touring map in leaflet.js, with subjective information overlaid as markers, along the lines of "this is a great road", "this town is quite nice" etc. To avoid information ...
4
votes
2answers
262 views

How to tell QGIS where to start marker line interval?

I want to tell QGIS where to start with a marker, like: use 3 markers, start at positions 0, 2, 4, and apply an interval of 12 to each marker. However, after searching for hours, I haven't found a ...
4
votes
1answer
4k views

Leaflet marker cluster and popups

I want to develop a map with Leaflet marker cluster. You can see how it looks like here: https://github.com/danzel/Leaflet.markercluster But I need that my markers have popups with more information ...
4
votes
3answers
2k views

Is there a way to “disperse markers” across multiple point layers?

I have a bunch of point layers which often have overlapping features. The disperse markers geoprocessing tool works within a layer but is there a way to do it across more than one layer, so none of ...
4
votes
1answer
134 views

How to reverse the drawing order of markers?

I saw this example which demonstrates how ordering can be controlled with markers added using styling options (graphicZIndex) applied to a vector layer. Due to the limitations in the combination of ...
3
votes
1answer
8k views

Go to the URL when clicked on Leaflet marker

I want to implement marker click event so when user click on marker it goes to url. Url is written inside an array (a[3]). However, this is my code which doesn't work, it always goes to the link of ...
3
votes
1answer
271 views

Double transformation of marker in Carto CSS

I need to show on the map the direction of the road traffic with arrows. For this purpose I use markers for Carto CSS in TileMill. If the road has in OSM tag oneway="yes" or oneway="1", all is ok, ...
3
votes
1answer
2k views

GeoJSON, circlemarkers using the Leaflet OverlappingMarkerSpiderfier plugin

I am wondering if I can use the Leaflet OverlappingMarkerSpiderfier plugin with my circlemarkers. I've loaded a GeoJSON file and added circlemarkers using; var gj = L.geoJson(route, { ...
3
votes
1answer
40 views

Using directional markers in QGIS?

I'm a QGIS neophyte and I'm looking for a little help. I'm trying to integrate QGIs into my forensic investigation practice, with regard to investigating and processing accident scenes. I take a ...
3
votes
1answer
334 views

How to create Race Route with arrow directions and distance markers using ArcGIS for Desktop?

Anyone have any suggestions regarding how I would approach creating a race route with arrow directions and distance markers in ArcGIS? I could do it manually but I thought I recalled seeing something ...
3
votes
1answer
61 views

Min distance for markers in CartoCSS

I used shields in CartoCss to show the subway stations on my map. When I started to develop the map for mobile devices, I noticed that svg images in shields were destorted hugely and I decided to use ...
3
votes
2answers
4k views

GoogleMaps URL string to display unique marker

This is a topic I thought as easy as pie to solve with just a Google search and which is in fact quite complicated. When I use the following URL string to open a GoogleMaps window on a specific ...
3
votes
0answers
617 views

how to show information window for the marker cluster

This is my markercluster code : i need information window for the markercluster icon as well as marker icon, i have another cluster.js file, can some one please tell me how can i show the information ...
2
votes
2answers
234 views

Multiple font markers in shapefiles in QGIS?

I'm making a UK phase 1 vegetation survey map and require to show the dominant plant species in a given polygon. In phase 1 these are shown as 2- or 3-letter codes e g Ri, Cys. These codes need to ...
2
votes
1answer
3k views

How to change icons for Leaflet markers when using cluster plugin?

I'm using Leaflet MarkerCluster. I created a MarkerClusterGroup as markers1 as you can see. There's about a hundred points I have written like var addressPoints in this format: var addressPoints = ...
2
votes
2answers
2k views

ArcGIS 9.3. How do I increase Picture Marker Symbol performance?

I have a layer with 400 point features that display a picture marker symbol on the map. We expect this number to increase a great deal. Unfortunately it's already noticeably slow. This is being ...
2
votes
2answers
2k views

Change marker color based on GeoJSON filter in Leaftlet

This is what I would like to do: Display all features of a GeoJSON file using Leaflet. Provide a text box where a property can be entered, if any of the GeoJSON properties match with what is entered ...
2
votes
1answer
2k views

Adding a marker with openlayers/geoserver

My name's Tony. I'm from vietnam. I want to add a marker in webgis with openlayers/geoserver. Here is my code : <!-- Import OL CSS, auto import does not work with our minified OL.js ...
2
votes
1answer
357 views

MapBox GL geoJSON markers disappear when custom style loaded

I am using this example to load geojson points to to a mapbox basemap. I view it on a browser locally and it works. When I change the style reference to my custom style, the style will display, ...
2
votes
1answer
3k views

How to add types of markers to the map in OpenLayers 3

I am looking for example of how to add markers of different type (different images) using OpenLayers 3. This is my code: iconStyle = new ol.style.Style({ image : new ol.style.Icon(({ ...
2
votes
1answer
2k views

OpenLayers: make polygons not zoom

I have a simple OpenStreetMap for which I want to display a series of circles. Each circle represents readership for that area, so its radius will change based on the numbers. However, when I create ...
2
votes
2answers
1k views

How to create a printable map of labelled markers with OSM background?

I want to create an image of an OpenStreetMap map suitable for printing on A4 at 300dpi. The map needs to have half a dozen markers/points, and each should be labeled with the name of the point. I ...
2
votes
1answer
1k views

How to design markers - raster or vector?

I have several layers that are point geometries. I am defining them custom markers symbols and such symbols have colors (red, yellow and green) to represent values. Since there are several of them in ...
2
votes
2answers
6k views

openlayers change marker icon, size and offset after drawn

I'm having much trouble changing my (feature)marker icons 'on the fly'. The problem is that I use much different images and also need to change the offset. So I iterate over every marker and make a ...
2
votes
1answer
37 views

How do I create a layer with popups that has hundreds of unique markers/symbols?

I am creating a layer in ArcGIS JavaScript API. I am looking for the best way to have a feature layer with popups and unique markers. This layer has hundreds of markers at a time. The markers are ...
2
votes
1answer
83 views

How to calculate marker area on OpenLayers 3?

I have the following scenario: a polygon (or few) and a marker which is displaying some data of its related geometry/ies: What I want is to manage the map's zoom level in order to decrease the ...
2
votes
1answer
74 views

Is it possible to show Leaflet Marker Cluster with JSON API?

I have a problem with displaying Leaflet Marker Cluster working with Leaflet-layerJSON. There are markers, but I cannot show the clusters. This works with GeoJSON, but now I have different data ...
2
votes
1answer
2k views

Dynamically change location marker based on user's input

I have the following code for displaying OSM with a predefined feature. I am using OpenLayers3: var wmsLayer = new ol.layer.Tile({ source: new ol.source.OSM() }); var ...
2
votes
1answer
283 views

How to synchronize the marker's rotation field with the angular distortion in the map projection

I'm Using QGIS 1.8.0 to plot a global dataset showing the positions of aircraft in flight. The data I have are .csv files with three columns: Latitude, Longitude, and angle of travel. I assign ...
2
votes
1answer
1k views

How to keep bound popups from opening on [click]?

I am working on a map application which creates and binds popups on markers and polyline objects. The popups are created and bound lazily, i.e. ad-hoc when a user clicks on a specific object. The ...
2
votes
2answers
1k views

Drop Markers and MarkerCluster together from database

I've been working on my map which gets it's details from a MySQL database. I use MarkerCluster Plus to cluster my markers but would like to add the drop animation to it. I found this thread, but ...
2
votes
1answer
848 views

How to animate Markercluster Icons

I am using Jquery Google Map V3 with markerclusterplus. I want to animate a cluster icon when hover the icon. My Clusterhover event code is, var mc = new MarkerClusterer(map, markersarray,mcOptions); ...
2
votes
0answers
8k views

How to get multiple dynamic custom markers on map using MapBox in MySQL and PHP?

Can anyone help me to get multiple custom markers on mapbox using lat/long from the database MySQL. I want to use 2 types of markers on the map, for which I have two separate table of lat/longs in the ...
2
votes
0answers
454 views

Refresh leaflet marker data in place ? (on insert to sql db)

I have a form that sends data via ajax to be geocoded and inserted into a mysql db. Once that data is there, can I force the marker layer to refresh so that it displays the new data? The SQL API ...
2
votes
1answer
185 views

Handle a great amount of Markers with OpenLayers

My general Problem is to maintain a lot of markers. For the beginning I want to display all Bus Stops of Berlin, Germany and surroundings as Markers. I already got that I have to use a strategy like ...