Libraries & Base classes

Libraries

Everysight's RDK comes with the following libraries:

• evsBase.aar: The main SDK library, contains all main functionality required for developing Raptor application
• evsUICarousel.arr: Optional UI Widget to add Carousel like control to your application, to make your app navigation easier

evsBase.aar

Used for all base functionality (on top of the standard android SDK)

Main classes:

Class	Description	Notes
EvsBaseActivity	Base class for most applications	Screen adjust will move this activity according to the user setup
EvsFullScreenBaseActivity	Base class for full screen activities	Used mainly for LOS oriented graphics applications
EvsApplication	Base class for application object
EvsPopupManager	For showing notifications on the Raptor
EvsToast	For showing toast on the Raptor
EvsCalibration	Utility class converting coordinates between different system axis	more details below

More classes exist. Please explore our samples

evsUICarousel.aar

The RDK Carousel control enables the developer to easily create a list of selectable items and to navigate among the items using the Raptor gestures

Main classes:

Class	Description	Notes
EvsCarouselActivity	Base Activity for adding RDK stock gesture UI control	Adds functionality for manipulating the control
ItemInfo, ItemInfoExe	Represents a single carousel item
IEvsRecyclerView	General carousel interface

More classes exist. Please explore our samples

Calibration

The EvsCalibration class functions as utility class converting coordinates between different system axis

Following axis are used:

Name	Description	Details
Display	display pixels xy	(0,0)-(display pixel wight-1, display pixel height-1) as (upper-left corner)-(down-right corner)
Camera	camera pixels inside the sensor xy	(0,0)-(sensor wight-1, sensor height-1) as (upper-left corner)-(down-right corner)
Eye	glasses "self" axis	XYZ - Right,Up,Back
World	NED (North,East,Down) - this is a magnetic north
LLA	WGS84 format	latitude(deg), longitude(deg), altitude(meters)

The EvsCalibration exposes functions to enable the developer to transform between the various axis

Libraries setup

To add these use the following in your gradle file:

repositories {
    mavenCentral()
    flatDir {
        //'dirs' should point to the libraries folder
        dirs '../../libs'
    }
}

dependencies {
    implementation(name: 'evsBase', ext: 'aar')
}