I have GeoJSON features that consists of many little features. When I hover over one of them, I want the whole layer to be selected and not only a part of my layer.
I don't know where to start to achieve that... anyone can help me ?
This is my code for the moment:
var hoverClick = new ol.interaction.Select({
condition: ol.events.condition.pointerMove,
});
select = hoverClick;
olMap.addInteraction(select);
Thanks
Instead of using an ol.interaction.Select, you could listen to the map pointermove event and use the ol.Map#forEachFeatureAtPixel method. If there's a feature (from your layer) at the location of the pointer, then apply the wanted style to the layer.
Related
So I am creating a map using Leaflet and Mapbox with multiple overlays and base maps. Currently I have a layers control where these are separated and you can only show one base map at a time, but all the overlays can be shown at once.
However, I have two overlays which interfere with each other and I would like to make it so that if one is checked in the control, the other is unchecked and vice versa. Is there any way to do this?
I am anticipating something like this, but am open to any suggestions.
var layer1 = L.mapbox.tileLayer('mapid1');
var layer2 = L.mapbox.tileLayer('mapid2');
var layerControl = L.control.layers(baseMaps, {"L1": layer1, "L2": layer2}).addTo(map);
map.on("overlayadd", function(e) {
if (e.name === "L1"){
L.layers.control.uncheck(layer2);
} else if (e.name === "L2") {
L.layers.control.uncheck(layer1);
};
});
Thank you!!
Working fiddle.
I don't know if there's an easier way. It seems the library doesn't offer many options to manipulate the L.control.layers overlays.
What I'm doing is firing a click on the conflicting overlay. To achieve this, a little DOM manipulating is needed. You can store an id reference when creating overlay's label.
I know how to add a layer with markers, which I can toggle on/off and how to add GeoJSON layer to my map.
But I can't mix these functions.
I need to create a toggling layer from GeoJSON (polyline layer).
Is it possible to get what I need without any external plug-ins or scripts?
GeoJSON Layers and Markers can be used together without problem.
To be able to toggle your layers, you need to catch some sort of click event from something you can click on, for example a button.
From my research what I found is if you need a custom button, it is not so quick to implement yourself, so you might need to use one of the available plugins.
If you still do not want to build a button or use a plugin, you could for example set a click event on the map itself, which toggles the GeoJSON layer on and off.
I took the GeoJSON example from the leaflet website and changed it so it toggles the GeoJSON layer on and off:
var geoLayer = L.geoJson([
// ...
]);
map.on('click', function() {
if(map.hasLayer(geoLayer)) {
map.removeLayer(geoLayer);
} else {
map.addLayer(geoLayer);
}
});
Hope that helps..
Edit:
I changed the example to use the layer control of leaflet.js
which is much better...
var baseLayers = {
"Markers": markerLayer,
"GeoJSON": geoLayer
};
L.control.layers(baseLayers).addTo(map);
Didn't know about this ;)
If you want checkboxes instead of radiobuttons, use this instead
L.control.layers(null, baseLayers).addTo(map);
http://codepen.io/anon/pen/qEaEBg
I have a situation with google map drawing manager. I want to change the drawing manager toolbar default tooltip. When we move mouse over the drawing manager tool bar(moving mouse over marker,circle)we see that tooltip "Add a Marker", "Draw a circle" . I want to change the toolbar tooltip as " Add New Location " , " Draw a Area" . I use google map API version3. Is it possible to change it?
Thanks in advance
The nodes for the buttons are not accessible via the API, the best way would be to ommit the built-in controls and create your own instead.
Another approach(using jQuery, but it would be possible without a framework too):
$(map.getDiv()).one('mouseover','img[src="https://maps.gstatic.com/mapfiles/drawing.png"]',function(e){
$(e.delegateTarget).find('img[src="https://maps.gstatic.com/mapfiles/drawing.png"]').each(function(){
$(this).closest('div[title]').attr('title',function(){
switch(this.title){
case 'Add a marker':
return 'Add New Location';
break;
case 'Draw a circle':
return 'Draw an area';
break;
default:return this.title;
}
});
});
});
It observes the mouseover-event of the buttons(because you'll never know when the buttons available inside the document) and then modifies the title.
But this approach will only work when the API uses english as language. To achieve it regardless of the language you'll have to check the top-property of the button-image(this seems to be the only detail that may be used to determine the type of shape the button is used for)
For what ever were the reasons, I couldn't get the #Dr.Molle version to work. However adapting the this answer I was able to get it to work in my application.
For example I simply wanted to change the text of the `DrawingManager' drawRectangle method and the code below worked for me. The crucial thing with this modification to the DrawingManager tooltip is to make sure the document and map objects are full loaded before this code runs.
$(".gmnoprint").each(function(){
var newObj = $(this).find("[title='Draw a rectangle']");
newObj.attr('title', 'Draw a rectangle around the area to search');
});
I have a Map with custom style and its working great,
I was wondering if I can somehow control the location of the map using some links in my page,
suppose I have 2 locations, I want to have
Location1
&
Location2
Then when I click on Location 1 map goes to that location , and same story for location 2, is it possible with jquery?
It would also be great if I can add a custom marker to each location too.
Thanks.
Yes, you can even do it without jquery, the panto method is what you want to use, https://developers.google.com/maps/documentation/javascript/reference#Map basically, just add a call to a predefined function into your anchor onclick event (or use a click handler in jquery to wire it up).
using jquery, you would need something like:
$("#location1").click(function(){
var pos = new google.maps.LatLng(-25.363882, 131.044922),
g_map.panTo(pos); //reference to globally defined google maps object
});
Here is a simple example from the google api documentation that can easily be retrofitted using the hints I have provided above:
https://google-developers.appspot.com/maps/documentation/javascript/examples/event-simple
if your instance of map is named "map", you can use:
Location1
I have a need to allow users to drag content that is behind other layers or visible through the transparent part of a layer.
Here's the best way I can describe it: JSFiddle Example
In the example, I want to be able to drag layer 2 around in between layers 1 and 3. I'm not sure this is even possible. It's easy enough to make all of the layers draggable, but I need layers 1 and 3 to stay still while a user positions layer 2.
You can create something like a pipe by forwarding any event of interest to that element. This can easily be done by invoking jQuerys .trigger()help
var $layer2 = $('div#container>#layer-2'),
$layer3 = $('#layer-3');
$layer3.bind('click mousedown mouseup', function(e) {
$layer2.trigger(e);
});
$layer2.draggable();
Demo: http://jsfiddle.net/Tfk2p/3/
This is just a demonstration. In production code you should store a reference for the target element and only forward events over that reference. (updated that)