I'm trying out providers of satellite/aerial images for a computer vision task.
I'm trying the Google Maps API. In all images, if I use a high level of zoom, I get a watermark in various parts of the picture (in addition to the watermark on the bottom).
Here's an example. I've highlighted in red in the top right corner one of the watermarks.
Is there any way to get the images without these (even by paying extra if necessary)?
It's weird that a paid service adds watermarks...
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When launching Google Maps in iOS, the App will display a blue dot for my location and a blue arrow for direction I faced.
Is it possible to display the blue arrow with Google Maps SDK in iOS ?
If SDK does not provide this function, is there any way to implement it by myself ?
I've spent a good amount of time researching this and the simple answer is no. I've combed through every page of the google maps iOS sdk documentation and have found nothing on user location direction. I have tried laying an arrow image on top of the mapView, but the problem is that the user dot does not always stay in the exact center, and there is no way to reference the location of the dot within the mapView. It seems that this is one feature that Google is keeping to themselves for some reason :(
I have a building floor plan and I need to specify its position on top of google map.
I like the way this is done in Google Floor Plans app - screenshot(the right part with map) - but I cannot figure out how they made it! :)
What part in Google Maps API I should look at?
In short - I have an image (plan of floor), and need to show it on top of Google Map and be able to manipulate with it (changing dimensions on events).
I'm thinking you'll want to implement a custom overlay. That link provides the relevant instructions for doing so. Also, Google provides a simple example so you can see the result here. Is that sort of what you're going for?
#Cianan Sims: Well, sure, I want custom overlay, but how is the question :-)
Fortunately, Google published tool called Overlay Tiler, which does exactly what I wanted - georeferencing of the image.
I know about google styled maps, which allow me to control the look of the google basemap.
I want to be able to pull in the aerial imagery from Google into my application, but have it displayed as greyscale as opposed to colour?
Is it possible to retrieve the aerials in greyscale from google via the default v3 API?
Have you seen this example by Odoe which uses css filters on the maps? Might be limited outside of chrome
http://www.odoe.net/apps/mapstyler/
https://github.com/odoe/MapStyler
If you have a look at Google Maps and search for some place in China like Tiananmen Square for example, then drag out the little streetview man, he does not go on the roads like normal... instead there is a scattering of little blue dots where he can stand and get a view.
This is similar to a panoramio layer but much slicker, and it lets you click between photos taken within the same field of view.
This is all great, except when I turn on the streetview control with Google maps API v3 on the website I'm developing (which is about tourist destinations in China), it lets you drag the man around but then he turns grey like there is no data. There are no blue dots and he can't see anything.
I'm wondering if there is a way to turn on that same streetview panoramio mode that they have in maps.google.com? Possibly they won't let us have access to that yet....
I could add a normal panoramio layer but I am really wanting to have that really nice blue dot thing happening.
Pretty sure no. v3 of the API implements streetview with HTML5/canvas etc - ie native in the browser.
That 'lookaround' viewer, is implemented in flash.
I suppose you could try v2 of the API, that still uses a flash client.
... otherwise just add a request to the Google Maps API issue tracker - it tracks suggestions.
I'm looking to add a custom tile overlay of my university campus on top of a Google Map. What I have is a jpeg image of my university campus layout, and what I'm trying to figure out is how to align it to the existing Google Maps such that I know the top leftmost tile coordinate which I need in order to then run the image through the Photoshop tile cutter script found at http://brokenbytes.info/tuts/documentation/examples/tilecutter.php.
The tool at http://anymap.org/GmapImage2TileGenerator/ sounded perfect for this job, but it looks as though it's only just been moved over to a new server and is proving buggy for me (I enter the image URL of my campus, but then it never shows an overlay of it on top of the map).
Are there any other tools available which can help with visually aligning an image/prepping it for the tile cutter, when the image itself has no geo information immediately attached to it?
The easiest is probably to use the latest MapTiler (from http://www.maptiler.com/) and it's visual georeferencing functionality.
See the video tutorial we prepared: https://www.youtube.com/watch?v=eJxdCe9CNYg