Questions tagged [markers]

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

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Setting specific zooms when clicking on different circle markers from the same layer in Leaflet?

I'm creating a Leaflet Map with circle markers designating specific plots of forest land across the U.S. When the user clicks on a marker, a popup shows up with information about the plot. Since the ...
Zac's user avatar
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2 votes
2 answers
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Using marker drag event instead mouseover on each polygan layer in Leaflet?

I want to use this leaflet example: https://leafletjs.com/examples/choropleth/example.html with some changes: add a marker to map. i done it like this: var center=[ 37.8, -96 ]; marker = new L....
mrmiremad's user avatar
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1 answer
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Displaying layer marker only after feature found with search plugin in Leaflet

I have been playing with different Leaflet plugins. One I am especially interested in is the Leaflet search plugin (https://github.com/stefanocudini/leaflet-search). I have been able to implement it ...
Bfox's user avatar
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2 answers
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Highlight all markers with the same feature value upon marker click in Leaflet

I have created a map with several points in qgis2web. I was wondering if there is a way to edit the final leaflet JavaScript code or HMTL in order to, when clicking on one of the points in the map the ...
Konstantinos Sideris's user avatar
1 vote
1 answer
69 views

Setting custom SVG icon for external GeoJSON point layer in Leaflet

I am attempting to make a public transport map of Berlin within Leaflet. I have exported layers from QGIS as GeoJSON and edited the file and added a var within a text editor. I am having some ...
Gregory C's user avatar
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1 answer
71 views

MarkerCluster element popup does not appear when clicking a spiderfy element, instead unspiderfy is triggered in Leaflet

I have created a custom popup that appears whenever an element on my map is clicked. However, when spiderfy happens (when a marker cluster is clicked and the map cannot zoom to a level that would ...
ysi_d's user avatar
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MarkerCluster does not zoom when cluster clicked if it cannot reach a zoom level that will separate elements. How can I check for this? [closed]

I have a map with a maximum zoom level of 18. It is possible to have data points that are so close together that they are still clustered at zoom 18, and it is also possible to have multiple data ...
ysi_d's user avatar
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Property e.propgatedFrom.feature not available in marker cluster click event in Leaflet

In a Leaflet map, when a point feature is clicked I want to capture its attributes and pass them onto some variables. The point feature is part of a cluster. The leaflet marker cluster is sourced as ...
user3072602's user avatar
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1 answer
966 views

Setting marker cluster icon color dynamically in Leaflet?

In a Leaflet map, when a school point is clicked it passes an id of that school and adds a student point layer specific to that school. The point layer is rendered on the map as marker cluster. So, ...
user3072602's user avatar
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How to extract the GPS data of the markers that I added in my shapefile in QGIS?

I was wondering, is it possible to extract the GPS coordinates of the red markers that I added in a shapefile in QGIS?
Asd0311's user avatar
1 vote
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277 views

How to add a point to an OpenLayers map

I have this: let draw; let save; let dibujo; let coordinates = []; let old_coordinates = []; let map; const source = new ol.source.Vector({ wrapX: false }); const raster = new ol.layer.Tile({ ...
Alejandro's user avatar
1 vote
1 answer
323 views

Adding, removing and modifying markers in OpenLayers

I am making a web page with a map which requires some operations with markers/waypoints. I need to add markers to a map, one of them should move to a given point which would be updated each second/...
Alejandro's user avatar
5 votes
2 answers
168 views

Create line-type symbology perpendicular to a segment in QGIS

I want to create a symbology (line type) for a point layer in QGIS. This line must be perpendicular to the segments of a polygon. I attach an image: To do this I entered an expression in the rotation ...
Ma6matto's user avatar
1 vote
1 answer
91 views

Highlight marker when click and remove previous highlight in Leaflet

This is a follow up question to "Error changing marker icon when clicked in Leaflet". I want to highlight a marker when clicked but at the same time reset previously highlighted marker. I ...
user3072602's user avatar
1 vote
1 answer
181 views

Error changing marker icon when clicked in Leaflet

I am trying to highlight a marker using a different icon when clicked. There are many posts about it but I am getting different error: .setIcon is not a function. This is my point data and the click ...
user3072602's user avatar
1 vote
1 answer
398 views

Use data from JSON file with Leaflet GeoJSON marker

I have a JSON file that I am fetching from and I would like to use the 'LAT' and 'LON' attribute to place markers. The problem is I am unable to see any markers appear. I think it's because the file ...
Nat's user avatar
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85 views

Adding markers to the map in standalone PyQGIS

I want to add markers to the map at geographical coordinates, preferably numbered labels as I need to identify different addresses given in a list. Later I want to export the map into PDF using ...
Tambet Väli's user avatar
2 votes
1 answer
239 views

Create a toggle for users to place markers in Leaflet?

I am working on an webpage that uses Leaflet. The users can currently place a marker on the map when they click a specific area. I was wondering if there is a way to add a toggle so that the user can ...
Buzzkillionair's user avatar
2 votes
1 answer
98 views

QGIS: Markers of actual size

I'm looking for the best way to plot ship outlines to the correct size in QGIS. I have a series of GPS positions inserted as points and I know the dimensions of the ship relative to the location of ...
Duncan's user avatar
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2 votes
1 answer
54 views

How to display in QGIS a mountain saddle with a symbol which indicates the orientation of the saddle?

I exported mountain saddles (natural=saddle) from overpass-turbo.eu as GeoJSON. I manged to display the saddles on a map with a symbol/marker like a point. I'd rather like to display the saddles on ...
think nice things's user avatar
0 votes
1 answer
29 views

PyQGIS Rastermarker Maximum Size/Scale

I am trying to set a "Maximum" scale or size limit for a RasterMarker inside PyQGIS. - Qgis 3.22 self.marker = QgsVectorLayer("Point?crs=epsg:4326", "marker", "...
Christian Land's user avatar
2 votes
0 answers
116 views

Rotating marker symbols using QGIS

I imported a delimiter text layer in QGIS with 4 columns (lon,lat,angle,norm). My goal is to show these points with a specific symbol (an arrow), oriented accordidng to the angle field. I think I ...
Alyson LE QUILLEUC's user avatar
1 vote
0 answers
500 views

Getting the source marker of an on click event in Leaflet? [closed]

I create multiple Markers in leaflet and bind an on click event handler to each of them, such as: marker = L.marker( geoJsonPoint.geometry.coordinates, { icon: someIcon } )....
Gorgsenegger's user avatar
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122 views

Converting data symbology from Fill to Marker

I'm new to QGIS and can't seem to find any way to convert data from "Fill" to "Marker" I have some data that I would like to overlay on a basemap as Markers which vary in size ...
lwr02's user avatar
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4 votes
1 answer
168 views

Changing the shape of the overview marker in QGIS print composer

I was wondering if it is possible to change the marker in an overview while working on an atlas in print composer of QGIS. Could I change the shape of the marker to the actual form of the polygons in ...
Jackie's user avatar
  • 41
1 vote
1 answer
911 views

Folium: export coordinates from markers

I'm looking for a way to export the coordinates from markers on the map in folium. I know that one can get the coordinates over the current mouse position, but I would like to use this information for ...
Loui77's user avatar
  • 13
3 votes
2 answers
351 views

Choose and save specific SVG markers in QGIS for different text values within the same field in the attribute table

I have a vector layer with different types of retail units on a map. For instance: hairdresser, baker, butcher, supermarket, etc. This information is stored within a same field column called "...
Philippe Morgan's user avatar
2 votes
1 answer
207 views

Creating Proportional Symbols with Leaflet

After converting the data in this table to geojson, I want to present it on the map by sizing it according to the "y_2021" values, but I get many errors like in the picture. Can you help me ...
T..'s user avatar
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0 votes
1 answer
515 views

Leaflet extra markers displaying icon but not marker

My code for formatting a JS Leaflet Extra Marker is like below where I've clearly given a marker color. let parkMarkerIcon = L.ExtraMarkers.icon({ shape: 'circle', markerColor: 'green', prefix: '...
user09873920143532's user avatar
1 vote
0 answers
181 views

Is there any way to create a dynamic marker with a self-populating pie chart (within the marker) in QGIS?

I have to plot security incidents on a map, and while I have been having great success on QGIS with the general mapping, as well as using clusters to indicate more than one incident on the same ...
Tertius's user avatar
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0 answers
10 views

Outline image markersymbol in esri maps

I have a marker , i need to populate the same with ouline color , var bufferedArea = geometryEngine.buffer(results[x].geometry, 1); var bufferedGraphic = new Graphic(bufferedArea, BufferSymbol); map....
amitesh verma's user avatar
2 votes
1 answer
314 views

SVG or PNG image from web as maker symbol (QGIS)

Is it possible to use a image (SVG oder PNG) from web (http) to use it as maker icon in QGIS? In my case: Hiking Trails in OSM sometimes have a symbol as way marking (wiki:symbol). Here is one: https:/...
MartinMap's user avatar
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4 votes
1 answer
133 views

QGIS Triangle marker size control

I have a series of points along a line and I want to project a 'beam' of acoustic energy from each one. I am looking to see how the beam might overlap. The beam is 0.5 degrees (+/- 0.25 degrees) and ...
WillH's user avatar
  • 455
1 vote
1 answer
139 views

Sort items of Leaflet List Markers plugin control?

I'm reading shapefiles with the leaflet library. I print the list of markers on the left in a list via the Leaflet List Markers library. I should sort the list of map markers that are shown to me on ...
user1423513's user avatar
2 votes
2 answers
667 views

Show markers on each point of GeoJSON polyline in Leaflet?

I have a line feature and would like to visualize all vertices. I am able to do this in QGIS (see screenshot) but I am wondering how I can do this in my Leaflet map? My JavaScript code drawing a ...
Thomas's user avatar
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2 votes
1 answer
887 views

Updating thousands of features in OpenLayers

I am a new to using OpenLayers and I am trying to properly show thousands (~5000) of features (ol.geom.Point) in a layer. I have a slider that represents years (year), and when I move the slider the ...
Luis A. Florit's user avatar
1 vote
1 answer
195 views

Maptiler and OpenLayers marks don't work well together

I am trying to use Maptiler together with OpenLayers. I followed the instructions in MapTiler site and cannot make the markers to show properly over the map. What happens is that the map features (...
Luis A. Florit's user avatar
2 votes
1 answer
2k views

Showing popup with info about all markers in the clustered marker in Leaflet?

I'm using Leaflet PlugIn markercluster for leaflet https://github.com/Leaflet/Leaflet.markercluster to visualize Points. My goal is to stop the process of "getting closer" to the points, so ...
Nicola's user avatar
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2 votes
1 answer
691 views

Styling Leaflet markers according to property in GeoJSON file

I´m trying to place markers on a map according to some properties on the GeoJSON file, but for some reason it doesn't work. I have a JSON file which have a property named Issue and that´s what I want ...
Bruno's user avatar
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0 votes
0 answers
17 views

Automatically assigned marker colors for markers within a group too similar, anyway to get unique colors assigned?

Automatically assigned marker colors for markers within a group are too similar, is there anyway to get unique colors assigned? I could go through the symbology of each marker and manually change them ...
John Son's user avatar
1 vote
1 answer
724 views

Create custom legend control using L.ExtraMarkers.icon icons in Leaflet?

Is there any way I can add Leaflet Extramarkers to my legend? From what I googled, it seems I'll have to add an image of markers... however I was hoping I could use the ones I created. var Icon = L....
Aneeqa's user avatar
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1 vote
1 answer
640 views

Move and update a marker to a fixed coordinate

I used Leaflet and leaflet.draw-src.js with this code : http://bl.ocks.org/TetsuyaKimotsuki/0156c511e3217edf58beb206633308f8 After creating a marker, I want to move it to the coordinates indicated in ...
Manard82's user avatar
  • 175
1 vote
0 answers
66 views

Isolated marker won't be displayed when filters are applied to be the single one amongst nearby clusters

I have markers all around the world, thousands of them. In some areas more close to each others, in other areas some even have a number of countries between them. Let's take the SINGLE marker in ...
Art's user avatar
  • 11
2 votes
2 answers
663 views

Saving "on mouse click" created markers to be available after reloading the browser in Leaflet?

I have found that when I manually add a marker, the marker stays on the map even after reloading the browser page. Example: var marker = L.marker([51.5, -0.09]).addTo(map); However, all of my markers ...
slugdev's user avatar
  • 21
1 vote
1 answer
797 views

Changing label position based on circle marker radius in Leaflet?

I have a circle marker var circle = L.circleMarker(latLngCoords, { radius: 5, weight: 1, color: 'black' }).addTo(map); that changes the radius based on the map zoom: map.on('zoomend', function (e) { ...
LAffair's user avatar
  • 255
2 votes
2 answers
4k views

Changing marker icon on click and then back to original state when click elsewhere in Leaflet?

I'm trying to get this function on my custom Leaflet map https://rodadagua.netlify.app/ I've found some very close examples and questions on here but being a complete novice unfortunately I have no ...
andycb's user avatar
  • 25
0 votes
1 answer
55 views

Set marker size equal to GPS accuracy with variable opacity?

I have an exported collection of iNaturalist observations which have latitude and longitude values, but also report the GPS accuracy in meters. This data is in the form of a csv file. The accuracy ...
Galen's user avatar
  • 103
3 votes
1 answer
223 views

Making marker label rotate with marker using QGIS

I have an arrow marker (svg) that I use for photo location and direction on maps. Under the arrow I want a label that is the number of the photo (photos by number are located elsewhere in a report). ...
Mathew Gibson's user avatar
1 vote
0 answers
432 views

Pop-Up position compared to the marker clicked in OpenLayers

I would like to center a pop-up on the marker where I click now it is moved to the right and above the marker. I tried two methods: Method 1: var f = map.forEachFeatureAtPixel( event.pixel, ...
CoderCoder42's user avatar
6 votes
3 answers
440 views

Creating ellipse marker with line pattern fill in QGIS

How can I create an ellipse marker with line pattern fill in QGIS? Like this: I have already made simpler symbols, but there is no solution with the ellipse
Ivan M's user avatar
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