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how to render teapot when target is detected with cloud

June 20, 2013 - 8:29pm #1

What i need to write so it will render teapot when target is detected with cloud  in sample where imagetargets and cloud recognition are integrated 

UlanSdu
Joined:
March 5, 2013
Posts: 31
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how to render teapot when target is detected with cloud

June 25, 2013 - 3:44am #9

Hi alessandroB, i check it again, all remained the same, and when my target is recognized scanning just of target just stops, and with this kind of error in logCat 

 

06-25 16:40:14.865: I/AR(6161): ImageTracker: Successfully created dataset
06-25 16:40:14.975: I/AR(6161): Successfully created ImageTarget.
06-25 16:40:14.975: I/QCAR(6161): Successfully created new trackable 'DecoLab' with rating '1'.
06-25 16:40:14.975: I/QCAR(6161): Recognized target name is 4432616
06-25 16:40:14.995: A/libc(6161): Fatal signal 11 (SIGSEGV) at 0x00000004 (code=1)
 
then about activity starts
 
I am not able to understand what is going on, 
 
I also posted on_update method inside cpp  can you  help me to solve this problem, thanks in advance
 
 
 
 
 
 
// Use the following calls if you would like to customize the color of the UI
// targetFinder->setUIScanlineColor(1.0, 0.0, 0.0);
// targetFinder->setUIPointColor(0.0, 0.0, 1.0);
 
// Object to receive update callbacks from QCAR SDK
class ImageTargets_UpdateCallback: public QCAR::UpdateCallback {
virtual void QCAR_onUpdate(QCAR::State& state) { //NEW code for Cloud Reco
QCAR::TrackerManager& trackerManager =
QCAR::TrackerManager::getInstance();
QCAR::ImageTracker* imageTracker =
static_cast<QCAR::ImageTracker*>(trackerManager.getTracker(
QCAR::Tracker::IMAGE_TRACKER));
 
// Get the target finder:
QCAR::TargetFinder* targetFinder = imageTracker->getTargetFinder();
 
// Check if there are new results available:
const int statusCode = targetFinder->updateSearchResults();
 
if (statusCode < 0) {
char errorMessage[80];
 
sprintf(errorMessage, "Error with status code %d at frame %d",
statusCode, state.getFrame().getTimeStamp());
} else if (statusCode == QCAR::TargetFinder::UPDATE_RESULTS_AVAILABLE) {
// Process new search results
if (targetFinder->getResultCount() > 0) {
const QCAR::TargetSearchResult* result =
targetFinder->getResult(0);
 
// Check if this target is suitable for tracking:
if (result->getTrackingRating() > 0) {
// Create a new Trackable from the result:
QCAR::Trackable* newTrackable =
targetFinder->enableTracking(*result);
 
if (newTrackable != 0) {
LOG(
"Successfully created new trackable '%s' with rating '%d'.",
 
newTrackable->getName(), result->getTrackingRating());
 
if (strcmp(result->getUniqueTargetId(), lastTargetId)
!= 0) {
 
LOG("Recognized target name is %d",result->getUniqueTargetId());
//snprintf(targetMetadata, CONTENT_MAX, "%s", result->getMetaData());
 
// If the target has changed...
// app-specific: do something
// (e.g. generate new 3D model or texture)
 
}
 
strcpy(lastTargetId, result->getUniqueTargetId());
// Stop Cloud Reco scanning
//targetFinder->stop();
 
//scanningMode = false;
 
showStartScanButton = true;
}
}
}
}
}
};
 
ImageTargets_UpdateCallback updateCallback;
 

 

UlanSdu
Joined:
March 5, 2013
Posts: 31
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how to render teapot when target is detected with cloud

June 21, 2013 - 2:27am #8

Ok, i will try to check it again, thanks

UlanSdu
Joined:
March 5, 2013
Posts: 31
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how to render teapot when target is detected with cloud

June 21, 2013 - 1:55am #7

Just check again the tutorial steps, make sure you have implemented both the C++ and the JAVA parts of the tutorial.

 

AlessandroB
Joined:
October 9, 2012
Posts: 8591
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how to render teapot when target is detected with cloud

June 21, 2013 - 1:04am #6

Can you give some referrence or something , thanks in advance

UlanSdu
Joined:
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Posts: 31
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how to render teapot when target is detected with cloud

June 21, 2013 - 12:46am #5

Yes it detecting it , i check it from last reco   panel from target manager, nothing is rendered

may be I need to write something here inside onUpdate method

 

virtual void QCAR_onUpdate(QCAR::State& state)
    {//NEW code for Cloud Reco
    QCAR::TrackerManager& trackerManager = QCAR::TrackerManager::getInstance();
    QCAR::ImageTracker* imageTracker = static_cast<QCAR::ImageTracker*>(
                 trackerManager.getTracker(QCAR::Tracker::IMAGE_TRACKER));
 
    // Get the target finder:
    QCAR::TargetFinder* targetFinder = imageTracker->getTargetFinder();
 
    // Check if there are new results available:
    const int statusCode = targetFinder->updateSearchResults();
 
    if (statusCode < 0)
    {
       char errorMessage[80];
 
       sprintf(errorMessage, "Error with status code %d at frame %d", statusCode,
                   state.getFrame().getTimeStamp());
    }
    else if (statusCode == QCAR::TargetFinder::UPDATE_RESULTS_AVAILABLE)
    {
       // Process new search results
       if (targetFinder->getResultCount() > 0)
       {
           const QCAR::TargetSearchResult* result = targetFinder->getResult(0);
 
           // Check if this target is suitable for tracking:
           if (result->getTrackingRating() > 0)
           {
               // Create a new Trackable from the result:
               QCAR::Trackable* newTrackable = targetFinder->enableTracking(*result);
 
                if (newTrackable != 0)
                {
                    LOG("Successfully created new trackable '%s' with rating '%d'.",
 
                    newTrackable->getName(), result->getTrackingRating());
 
                    if (strcmp(result->getUniqueTargetId(), lastTargetId) != 0)
                    {
 
 
May be here for example or what, any ideas?
 
 
                    }
 
 
 
                     strcpy(lastTargetId, result->getUniqueTargetId());
 
                     // Stop Cloud Reco scanning
                     targetFinder->stop();
 
                     scanningMode = false;
                     showStartScanButton = true;
                 }
             }
         }
    }
    }
UlanSdu
Joined:
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Posts: 31
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how to render teapot when target is detected with cloud

June 21, 2013 - 12:03am #4

Have you clicked on the Scan button on the screen ?; this will start CloudReco scanning, then if your target has a rating > 0, it should be able to detect it.. 

AlessandroB
Joined:
October 9, 2012
Posts: 8591
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how to render teapot when target is detected with cloud

June 20, 2013 - 11:33pm #3

yes all stuff was done according to this tutorial, but for example i have my own cloud database and own image targets, i changed client key of tutorial according to own keys, but when i am tracking my target nothing is rendered, teapot is rendered while chips and stones targets  are detected by cloud

UlanSdu
Joined:
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Posts: 31
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how to render teapot when target is detected with cloud

June 20, 2013 - 10:40pm #2

Hi, have you already checked this article:

https://developer.vuforia.com/forum/faq/android-how-integrate-cloudreco-imagetargets-sample

This shows how to integrate CR with Image Target and render a teapot for a cloud target (the relevant rendering code is in renderFrame() function in ImageTarget.cpp)

 

AlessandroB
Joined:
October 9, 2012
Posts: 8591
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