[GIS] Folium/Leaflet display marker without radius

foliumleafletpython

I would like to plot a point in a Folium map. Not a circle, just a point (i.e. without a radius).

I would like for them not to zoom in if I do, but just stay as a point.

I have

   fmap.circle_marker(location=[row["lat"],row["lon"]], popup=row["tower"])

I've tried setting the radius to 0, and the fill_color/fill_opacity to 0 as well, but it still displays a circle.

Best Answer

The folium documentation states that there is different types of markers you can use, the circle marker you are trying to implement does excactly what your'e experiencing.

Try using:

fmap.marker(location=[row["lat"],row["lon"]], popup=row["tower"])

This should print a normal dot.

Else look at the folium documentation under the quick start guide page 4

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[GIS] Triggering click event on Leaflet map

I think that your are thinking it is more complex than you think!

Try this:

var popLocation= new L.LatLng(-42.8585,147.2468);
var popup = L.popup()
    .setLatLng(popLocation)
    .setContent('<p>Hello world!<br />This is a nice popup.</p>')
    .openOn(map);

Sourced from the excellent documentation.

I know what you want to do now. Here's how you can open a popup at an arbitrary clicked location:

map.on('click', function(e) {        
        var popLocation= e.latlng;
        var popup = L.popup()
        .setLatLng(popLocation)
        .setContent('<p>Hello world!<br />This is a nice popup.</p>')
        .openOn(map);        
    });

Final edit: I seriously think that if you want to fire a 'click' event to achieve something that your design needs to be looked at. If you really want to do it, it seems possible in javascript. It's not a GIS question, though.

[GIS] Leaflet – Change style on click

A couple of edits and suggestions that might help you. I am sure there is a more elegant way to do this, but I tested it and it works.

You have to check first if the variable clickedFeature is already defined. One way to do that is by checking what type it is. If the type is not defined yet, then the variable isn't defined yet.

function clickFeature(e) {
                    if (typeof clickedFeature != 'undefined') {clickedFeature.setRadius(3)}

You have to define the function update. info.update does not make sense in this case.

                    var layer = e.target;
                    e.target.setRadius(5);
                    clickedFeature = e.target;
                    update(feature.properties.PROPERTY)
                    }   


    var update = function (feature, latlng) {
        return L.circleMarker(latlng)
};

You don't have to add it to your layer again, since the function is called when the layer is created. So I deleted .addTo(MyLayer).

function onEachFeature(feature, layer) {
                                layer.bindPopup(feature.properties.name);
                                layer.on({click: clickFeature,})
                                }

Best Answer

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[GIS] Triggering click event on Leaflet map

[GIS] Leaflet – Change style on click

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