The Trackable classes expose methods to obtain the size of the Trackable (Image Target, Object Target or other);

For example, if you are using Unity, you'll probably want to use the GetSize() method of the ObjectTarget class:

https://developer.vuforia.com/library/sites/default/api/unity/interfaceVuforia_1_1ObjectTarget.html

See also the complete API reference for Unity, C++ and Java:

https://developer.vuforia.com/library/sites/default/api/unity/index.html

https://developer.vuforia.com/library/sites/default/api/cpp/index.html

https://developer.vuforia.com/library/sites/default/api/java/index.html

Thanks for the reply. But I do this in Objective-C. Can I get the dimensions in objective c?

I have alrdy tried getSize(), but the result is same for all the objects irrespective of the size of the object.

Thanks

Sarath.

You can use the Vuforia C++ API, even if most of your code is written in Obj-C.

As you can also see in the Vuforia Sample Apps, the iOS sample code is written in Objective-C and C++, cause the Vuforia API for iOS is based on C++;

 you can mix C++ and Objective-C code in your project.