I’ve created an addon wrapping the newest Leap SDK (beta v. 2.0.1) which supports hand skeleton tracking. The newest SDK is much improved from the last one as it identifies fingers by type (index, middle, ring, etc) instead of keeping them unordered, and it does a much better job at detecting fingers despite occlusion.
The addon is basically a copy of Theo’s original ofxLeapMotion except that the newest SDK has been swapped in and you can now call fingers by their individual type, as well as get the individual joints in each finger.
I’ve tested this working on OSX 10.7, I expect it should work on more recent OSX. If anyone can test it on Windows/Linux, that would be useful as well.
Nevermind, After 5 hours of linking and such, I finally tracked down everything and got it working in VS2012 - here is it for those that want to give it a go, many thanks to Gene for the hard work on this! I am teaching a workshop in Wuhan China tomorrow with it!
Chris LeapMotion2Example.zip (1.7 MB)
Hay there, with ubuntu 14.04 64bit i get the following error:
In file included from ../../../libs/openFrameworks/ofMain.h:5:0,
from src/main.cpp:1:
../../../libs/openFrameworks/utils/ofConstants.h:359:19: error: expected unqualified-id before numeric constant
#define PI 3.14159265358979323846
^
../../../addons/ofxLeapMotion2/libs/include/LeapMath.h:24:20: note: in expansion of macro ‘PI’
static const float PI = 3.1415926536f;
^
../../../libs/openFrameworks/utils/ofConstants.h:359:19: error: expected unqualified-id before numeric constant
#define PI 3.14159265358979323846
^
../../../libs/openFrameworks/utils/ofConstants.h:379:22: note: in expansion of macro ‘PI’
#define DEG_TO_RAD (PI/180.0)
^
../../../addons/ofxLeapMotion2/libs/include/LeapMath.h:30:20: note: in expansion of macro ‘DEG_TO_RAD’
static const float DEG_TO_RAD = 0.0174532925f;
^
../../../libs/openFrameworks/utils/ofConstants.h:359:19: error: expected ‘)’ before numeric constant
#define PI 3.14159265358979323846
^
../../../libs/openFrameworks/utils/ofConstants.h:379:22: note: in expansion of macro ‘PI’
#define DEG_TO_RAD (PI/180.0)
^
../../../addons/ofxLeapMotion2/libs/include/LeapMath.h:30:20: note: in expansion of macro ‘DEG_TO_RAD’
static const float DEG_TO_RAD = 0.0174532925f;
^
../../../libs/openFrameworks/utils/ofConstants.h:383:22: error: expected unqualified-id before numeric constant
#define RAD_TO_DEG (180.0/PI)
^
../../../addons/ofxLeapMotion2/libs/include/LeapMath.h:36:20: note: in expansion of macro ‘RAD_TO_DEG’
static const float RAD_TO_DEG = 57.295779513f;
^
../../../libs/openFrameworks/utils/ofConstants.h:383:22: error: expected ‘)’ before numeric constant
#define RAD_TO_DEG (180.0/PI)
^
../../../addons/ofxLeapMotion2/libs/include/LeapMath.h:36:20: note: in expansion of macro ‘RAD_TO_DEG’
static const float RAD_TO_DEG = 57.295779513f;
^
In file included from src/ofApp.h:4:0,
from src/main.cpp:2:
../../../addons/ofxLeapMotion2/src/ofxLeapMotion2.h: In member function ‘std::vector<ofxLeapMotionSimpleHand> ofxLeapMotion::getSimpleHands()’:
../../../addons/ofxLeapMotion2/src/ofxLeapMotion2.h:286:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < leapHands.size(); i++){
^
make[1]: *** [obj/linux64/Release/src/main.o] Fehler 1
make[1]: Verlasse Verzeichnis '/home/lukas/OpenFreamworks/addons/ofxLeapMotion2/example_leap'
make: *** [Release] Fehler 2
Someone has an idea what could be the problem?
Edit: i found a solution in the forum (had do #ifndef PI)
obj/linux64/Release/src/main.o:(.rodata._ZTIN4Leap8HandListE[_ZTIN4Leap8HandListE]+0x10): Nicht definierter Verweis auf `typeinfo for Leap::Interface'
obj/linux64/Release/src/main.o:(.rodata._ZTIN4Leap4HandE[_ZTIN4Leap4HandE]+0x10): Nicht definierter Verweis auf `typeinfo for Leap::Interface'
obj/linux64/Release/src/main.o:(.rodata._ZTIN4Leap5FrameE[_ZTIN4Leap5FrameE]+0x10): Nicht definierter Verweis auf `typeinfo for Leap::Interface'
It seems like it can’t find the library
Thanks in advance,
Lukas
edit:
Found the solution:
i simly had to edit the makefiles PROJECT_LDFLAGS
In my specific case:
Thank you very much for the wonderful addon:)))
I am building one of my school projects on it with oF0.8.4 but I have experienced some problem and hopefully you or some gurus here could help me out:)))
I have been trying to draw an ofImage but the colour has been distorted as negative colours. Moreover, when I was trying to draw an image from the webcam, there were some glitches appeared…
It would be very nice if you could give me some advice :)))
hi karen,
this doesn’t sound like a problem with ofxLeapMotion2. could you post a code example? try putting ofSetColor(255) before you draw your ofImage. does that solve it?
gene
sorry for the late response…
i’m not the one who added the vs project file, and i don’t use VS so i’m not sure precisely how to fix it but it looks like you are getting a linker error which means the static library’s not getting linked to your project file. make sure the .dll inside ofxLeapMotion/libs/ gets linked to your project before you build it.
I am on linux here, using OF on qt, I added the addon to the folder, changed the .qbs file to build my project with the addon.
added #include “ofxLeapMotion2.h” and the build was fine.
Well, I’ve used the addon in Linux, in a Qt openframeworks project and it works. The only problem is when I move the hand really quick, it crashes… the qt project and therefore the running program. What I get is a segmentation fault and a operating system crash
does this has to be with the addon?
