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Contents
# Internal representation of a keyframe, that carries info on the frame location in the clip, x y and residual.
#
# Franme numbers are zero-based (frame 0 is first frame of the clip).
# X-coordinate (abs_x) is absolute pixels from lower left corner of the comp to the right
# Y-coordinate (abs_y) is absolute pixels from lower left corner of the comp up
# Residual is how far in pixels the tracker strolls away, and is the inverse of
# correlation (with total correlation of one the residual excursion becomes zero).
class Tracksperanto::Keyframe
include Tracksperanto::Casts
include Tracksperanto::BlockInit
# Absolute integer frame where this keyframe is placed, 0 based
attr_accessor :frame
# Absolute float X value of the point, zero is lower left
attr_accessor :abs_x
# Absolute float Y value of the point, zero is lower left
attr_accessor :abs_y
# Absolute float residual (0 is "spot on")
attr_accessor :residual
cast_to_float :abs_x, :abs_y, :residual
cast_to_int :frame
def inspect
'#< %.1fx%.1f @%d ~%.2f) >' % [abs_x, abs_y, frame, residual]
end
end
Version data entries
30 entries across 30 versions & 1 rubygems