add triangleCD
use kunshan to test the triangleCD algorithm
triangleCD test passed using kunshan 1st robot
add volume build method, not tested
correction of missing volume file
fix the unsorted chunk error
trying to fix len = 0 bug
triangCD asymmetry bug to be fixed
add update_volume
still update volume and triangle
maybe succeed
bug in depth
depth bug fixed
add init and finish func
maybe that's it
fixing divided by zero bug
before cmake
long story