Locating a particular stone within the sample image of stones (image_targets_2022.pdf)

[EZ_12871053]

I've printed the sample 9.7" x 9.7" image from the Vuforia Sample Target pdf,  and have a text file with a set of coordinates (in millimeters) for each stone. 

My goal is have Vuforia place a marker on any of the stones.  For example, if I enter stone #10, the AR Android app will lookup the position from the file (89mm , 13mm) and place a marker there.

However, if the camera gets too close to the image, such that only a portion is in the camera-view.. , would Vuforia know which stones are still visible?  For example, if the camera is pointing to the bottom-right corner only, is Vuforia smart enough to know where on the image it is looking at so that it only places  markers on the stones that are in view?    

BTW, I'm very new to Unity/Vuforia, so I really want to keep it simple, and avoid using OpenCV/MultiImage-Feature Tracking/Sensor Fusion.   I tried searching for any example related to this, but could not find anything.

Any tips, or suggestions are greatly appreciated!   

[RolandRaytchev · Accepted solution]

Hi @EZ_12871053 ,

I belive your quesiton is not addressed to the functionlity of Vuforia Studio what is handled in that commutiy.

I am not sure if I understood your intent correctly but  it think it will work in Vuforia Studio. You can select a marker for World Coodrindate system (what you meant with marker - that could be ModelTarget - scans real model what ishould be  also availible as 3D pvz model or scanned thingmark - or picture/Image target. That will set the corrdinate of you rWorld CSYS. You can also use a surface to set a point ( ARCore or ARKIT - set the target on any horzontal surface but it is not very accurate ... but possibly for the applciaton is good enough) Then you can use any setting to vary the  position of the displayed augmentation model - means display a model on different position with different roation and scale.

But when you quesiton is about FVuforia Engine issue  in that case , please, check :

https://developer.vuforia.com/library/vuforia-engine/FAQ/support/

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[EZ_12871053]

Thanks, I think I understand.

Is there a particular documentation that shows how to use the sample image-targets.  Vuforia has a link to download a PDF:

https://developer.vuforia.com/library/vuforia-engine/images-and-objects/sample-apps-target-pdfs/

But doesn't mention how to use it.  You can't import a PDF into the Vuforia, and Unity doesn't show these sample Image targets in the Assets folder.. so not sure how it's meant to be used.