What is an API overlay?
Overlays are objects on the map that are tied to latitude/longitude coordinates, so they move when you drag or zoom the map. The Maps JavaScript API provides an OverlayView class for creating your own custom overlays.
What is an overlay map used for?
Overlay is a GIS operation that superimposes multiple data sets (representing different themes) together for the purpose of identifying relationships between them.. An overlay creates a composite map by combining the geometry and attributes of the input data sets.
What is Google overlay?
A screen overlay in Android, also referred to as “Draw On Top”, allows an app to display content over another app. Basically, the permission allows a developer to display content on the screen of your Android device after some trigger event.
Why do we overlay?
You use overlays to estimate the attributes of features in a map layer based on data in another map layer. For example, you can use an overlay to calculate: The total length of streets in a city. The population, average income, and/or number of competitors near a potential store location.
What is an overlay for reading?
Colored overlays, one type of tinted filter, are plastic reading sheets tinted with color and placed over text to eliminate or alleviate a wide range of reading difficulties such as low reading rate, accuracy, and comprehension.
What is Android telephony overlay?
What is overoverlay API?
Overlay API is a programming interface for vectors and pointers on slippy maps . This extension can be implemented as overlay for Map API . khtml.maplib is one implementation of this API. The simple overlay API uses as internal data hierachy the GeoJSON Object structure.
What data structure is used in the simple overlay API?
The simple overlay API uses as internal data hierachy the GeoJSON Object structure. For styling standard CSS for SVG is used. If Canvas is used as vector backend, the CSS will be translated to Canvas commands.
Which extension can be implemented as overlay for Map API?
This extension can be implemented as overlay for Map API . khtml.maplib is one implementation of this API. The simple overlay API uses as internal data hierachy the GeoJSON Object structure.
What are the effects of the overlay tool?
The effect to be used when an overlay is opened and closed. This can dramatically change the behaviour of the overlay. By default this tool uses an effect called “default” which is a simple show/hide effect. Here is a list of currently available effects and you can also make your own effects.