Sha256: fc1af12c5259a663156a2cc1e17399d1ab02585f8c8c8f835565501b040dd7eb
Contents?: true
Size: 2 KB
Versions: 5
Compression:
Stored size: 2 KB
Contents
class Tracksperanto::Import::MatchMover < Tracksperanto::Import::Base
def self.autodetects_size?
true
end
def self.human_name
"MatchMover REALVIZ Ascii Point Tracks .rz2 file"
end
def self.distinct_file_ext
".rz2"
end
def each
detect_format(@io)
extract_trackers(@io) { |t| yield(t) }
end
private
def detect_format(io)
report_progress("Detecting width and height")
lines = (0..2).map{ io.gets }
last_line = lines[-1]
int_groups = last_line.scan(/(\d+)/).flatten.map{|e| e.to_i }
@width, @height = int_groups.shift, int_groups.shift
# Next the starting frame of the sequence. The preamble ends with the p(0 293 1)
# which is p( first_frame length framestep )
@first_frame_of_sequence, length, frame_step = int_groups[-3], int_groups[-2], int_groups[-1]
end
def extract_trackers(io)
while(line = io.gets) do
yield(extract_track(line, io)) if line =~ /^pointTrack/
end
end
def extract_track(start_line, io)
tracker_name = start_line.scan(/\"([^\"]+)\"/).flatten[0]
report_progress("Extracting tracker #{tracker_name}")
t = Tracksperanto::Tracker.new(:name => tracker_name)
while(line = io.gets) do
return t if line =~ /\}/
t.keyframes.push(extract_key(line.strip)) if line =~ /^(\s+?)(\d)/
report_progress("Extracting keyframe")
end
raise "Track didn't close"
end
LINE_PATTERN = /(\d+)(\s+)([\-\d\.]+)(\s+)([\-\d\.]+)(\s+)(.+)/
def extract_key(line)
frame, x, y, residual, rest = line.scan(LINE_PATTERN).flatten.reject{|e| e.strip.empty? }
Tracksperanto::Keyframe.new(
:frame => (frame.to_i - @first_frame_of_sequence),
:abs_x => x,
:abs_y => @height - y.to_f, # Top-left in MM
:residual => extract_residual(residual)
)
end
def extract_residual(residual_segment)
# Parse to the first opening brace and pick the residual from there
float_pat = /([\-\d\.]+)/
1 - residual_segment.scan(float_pat).flatten.shift.to_f
end
end
Version data entries
5 entries across 5 versions & 1 rubygems