Loading Dataset from sd card without ndk-building

Hi, yes, you can load a dataset for instance from a string variable where you hold the value of a path;

the path can point to a path on you external storage (sd card, as you mention) for instance.

You're welcome.

Every target has a name; for each DataSet, you can get the list of all the image targets contained in it, and then for each target you can query the name and see if one of them matches the name you are interested in; for example, look at this snippet (just for illustration purpose):

You should not need to activate a dataset  in order to get someDataSet.getNumTrackables()

Yes, you should be able to put that code in renderFrame without problems. The only thing to keep in mind is that, if you need to deactivate / activate a dataset (e.g.

You eed to add this include statement:

#include <QCAR/Trackable.h>

Oh, reading again the code:

you need to replace this line:

you're welcome.

Indeed, you cannot recognize (detect) a target if no dataset has been activated yet;

You can switch DataSets, as it is demonstrated in the ImageTargets sample. But what is your specific question/goal here ?

or it could be activating first in dataset1 and if not there activate dataset2 or if not there activate dataset3 or  i dont kn