- Detect gesture as tuning gesture
- Find discrete parameter of selected object
- Use gesture to tune the parameter and update the object
- Detect hand gesture as tuning gesture (in our current example, we are using thumb-up gesture, it can be customized, and the only requirement is the direction of the palm should be able to capture), trigger tuning functions.
- Find the json file of the selected object from backend compiler, to look for discrete parameters (leg number for Stool, cross piece for Canoe and Trimaran) for tuning modification.
- When the palm direction is hozitonal, set a boolen to be true, indicating the tuning process begins.
- Turn the wrist in a way similar to turning a screw; when the thumb points upwards, the gesture send "add one" signal to the discrete parameter; when the thumb points downwards, the gesture send "minus one" signal to the discrete parameter.
- When the parameter receives new signal from gesture, update the selected object, and reset all boolen and signal variables to be ready for next tuning modification.
- Limitation: Current tuning gesture only functions on the first discrete parameter found in the object, if the object has more than one discrete parameter, there should come up with a new way to determine which parameter is meant for modification.
Demo video of tuning discrete parameter
This demo video shows:
- The hand can create new object, select it for modification
- The system can find discrete parameter of the selected object (if any)
- The hand can tune the discrete parameter by turning the wrist
- The object can be reset to initial default position, rotation and parameters
- The Exit button functions