Currently iam using google map to display a particular location on map_canvas. There iam also plotting some markers too.
In my application there is an option to set zoom level of the map by the user. User can pinch zoom on map and return the current map zoom value, when clicking on a button the value will be saved. i attain it by using
this.mapObj.getZoom();
What my requirement is to get the zoom level of the map after the user performs the pinch zoom, so that i can display it in a div, so that the user can know the zoom level after each pinch zoom in/pinch zoom out.
Anyone have any idea how can i get the event just after the pinch zoom?
Hope you guys understand what i mean!
NB: Shoot! Found out!
Google Maps API v3: Is there a callback or event listener after zoom changed?
am gonna try this.
Yes, put this somewhere ( I would put that inside initialize() ):
google.maps.event.addListener(map, 'zoom_changed', function() {
...
}
And you read the zoom with map.getZoom().
Also, check out bounds_changed . That is triggerd by zoom, pan and resize of the map. Might become useful to you
Related
I need functionality to check in what direction is map scrolled.
I show some text on a map using tooltips and need to change font-size depending on zoom level.
I had tried with 'wheel' event but it is fired only out of a Map.
Also as I know there is no direction event on 'zoomstart' and 'zoomend' events.
I know that checking zoom direction is not Leaflet's by the book way but any suggestion or solution will help me a lot.
Is it possible to make it so you can only zoom in and out by using the zoom buttons as opposed to been able to pinch the screen? Perhaps only sensing one touch at a time or something similar?
The solution is right there in the Leaflet documentation: simply set the map option touchZoom to false when instantiating the map.
I am using the Bing map version 7 for the displaying the events and its details on map. For that i have added the following reference js file "http://ecn.dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=7.0&mkt=de"
I have implemented the displaying the event pin on map and displaying the event details in infobox. I am stuck up with displaying event details in infobox which are on the boundary of the map. This infobox goes outside the map.
I have found on solution in the post
Cool Infobox and plot polygons through xml ....in bing maps , pure javascript
But even after implementing the solution mentioned(CustomInfoboxModule) in above link, i am facing the issue for the events having more details.
Check for the
Not 100% sure if I understand the question. Is your issue that the infobox falls outside of the map? If so, if you make your Infobox big enough this is bound to happen. There are a couple of solutions:
Limit the size of your description area (i.e. give it a max-height) and make it scrollable (i.e. overflow-y: auto). This will ensure that your infobox never exceeds a certain height. The custom infobox control you are using, positions the infobox based on which quadrant the pushpin is in. If the pushpin is in the top left corner the infobox is shown to the right and down. If the pushpin is in the bottom right corner the infobox is shown to the left and up. This means that if you ensure that the max height of the infobox is half the height of the map, that it should always be displayed within the map.
Alternatively, if you know the infobox will never be bigger than the height of the map, you could simply reposition the map so that the pushpin is higher and then open the infobox.
I have a 'moveend' listener established on an OpenLayers map. I can pan or zoom the map and the listener fires as expected. I also have the need in this app to programmatically change the zoom and the center location, however, when I do the 'moveend' listener fires. Is it possible to distinguish between user-driven view changes and programmatic view changes in OpenLayers?
I am using JavaScript OpenLayers version 2.12.
I don't think there is a way to distingish. But here's what you can do. When you programmatically zoom or change the center location, you can temporarily unregister the moveend event, and then re-register it afterwards:
map.events.unregister( "moveend", map, function );
.
.
programatically zoom
.
.
map.events.register( "moveend", map, function );
Also, when zooming or moving map programmaticaly, you could set some variable to true.
In listener, check that variable. If it's true, map is moved programmaticaly. After checking, set it back to false.
I am having trouble in developing mobile-web application. I want to allow users to upload map as an image of any location and other will tag or add marker on different position of it. I want want this functionality with zoom in and zoom out. I am able to do this without zoom in and zoom out. Can any body help me to achieve this by adding zoom in and zoom out on image with tags.
Have a look here https://github.com/can3p/iviewer/wiki. it is jquery component that you can use and has examples of zooming -in and -out with the coordinates and markers.