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Contents
# -*- encoding : utf-8 -*-
class Tracksperanto::Export::MayaLive < Tracksperanto::Export::Base
# Maya Live exports and imports tracks in "aspect units", so a point at 0,0
# will be at -1.78,-1 in MayaLive coordinates with aspect of 1.78. Therefore
# we offer an override for the aspect being exported
attr_accessor :aspect
def self.desc_and_extension
"mayalive.txt"
end
def self.human_name
"MayaLive track export"
end
def start_export( img_width, img_height)
@aspect ||= img_width.to_f / img_height
@w, @h = img_width, img_height
first_line = (%w( # Size) + [@w, @h, "%.2f" % @aspect]).join(" ")
@io.puts(first_line)
@tracker_number = 0
end
def start_tracker_segment(tracker_name)
@io.puts('# Name %s' % tracker_name)
end
def end_tracker_segment
@tracker_number += 1
end
FORMAT_LINE = "%d %d %.10f %.10f %s"
def export_point(frame, abs_float_x, abs_float_y, float_residual)
values = [
@tracker_number, frame,
aspectize_x(abs_float_x), aspectize_y(abs_float_y),
residual_with_reset(float_residual)
]
@io.puts(FORMAT_LINE % values)
end
private
def aspectize_x(pix)
aspectized_pixel = @w.to_f / (@aspect * 2)
(pix / aspectized_pixel) - @aspect
end
def aspectize_y(pix)
aspectized_pixel = @h.to_f / 2
(pix / aspectized_pixel) - 1
end
def residual_with_reset(r)
"%.10f" % (r/10)
end
end
Version data entries
42 entries across 42 versions & 1 rubygems