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Versions: 31
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Contents
# -*- encoding : utf-8 -*-
class Tracksperanto::Import::MayaLive < Tracksperanto::Import::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 imported (if the pixels are not square)
attr_accessor :aspect
def self.human_name
"Maya Live track export file"
end
def self.autodetects_size?
true
end
def self.known_snags
'Only square pixel aspect ratio shots are supported.'
end
COMMENT = /^# /
def each
io = Tracksperanto::ExtIO.new(@io)
extract_width_height_and_aspect(io.gets_non_empty)
while line = io.gets_and_strip
if line =~ COMMENT
yield(@last_tracker) if @last_tracker
@last_tracker = Tracksperanto::Tracker.new(:name => line.gsub(/#{COMMENT} Name(\s+)/, ''))
next
end
tracker_num, frame, x, y, residual = line.split
abs_x, abs_y = aspect_values_to_pixels(x, y)
@last_tracker.keyframe! :frame => frame, :abs_x => abs_x, :abs_y => abs_y, :residual => set_residual(residual)
end
yield(@last_tracker) if @last_tracker
end
private
def aspect_values_to_pixels(x, y)
[
(@width.to_f / 2.0) + (x.to_f * @x_unit.to_f),
(@height.to_f / 2.0) + (y.to_f * @y_unit.to_f)
]
end
def extract_width_height_and_aspect(from_str)
self.width, self.height = from_str.scan(/\d+/)
@aspect ||= width.to_f / height.to_f
@x_unit = width / (@aspect * 2)
@y_unit = height / (1 * 2)
end
def set_residual(residual)
(residual == "-1" ? 0 : residual)
end
end
Version data entries
31 entries across 31 versions & 1 rubygems