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# Base exporter. Inherit from this class to automatically register another export format.
# The exporters in Tracksperanto are event-driven and follow the same conventions - your
# exporter will be notified when a tracker will be exported and when a tracker has been passed
# (the last keyframe has been sent)
class Tracksperanto::Export::Base
include Tracksperanto::ConstName
include Tracksperanto::SimpleExport
attr_reader :io
def self.inherited(by)
Tracksperanto.exporters << by
super
end
# Should return the suffix and extension of this export file (like "flame.stabilizer"), without
# the leading underscore. It's a class method because it gets requested before the exporter is instantiated
def self.desc_and_extension
"data.txt"
end
# Should return the human-readable (read: properly capitalized and with spaces) name of the export module
def self.human_name
"Abstract export format"
end
# The constructor for an exporter should accept a handle to the IO object that you can write to.
# This gets assigned to @io ivar by default, but you can do whatever ypu wish
# By convention, the caller will close the IO when you are done so don't do it here
def initialize(write_to_io)
@io = write_to_io
end
# Called on export start. Will receive the width and height of the comp being exported
def start_export( img_width, img_height)
end
# Called on export end. By convention, the caller will close the IO when you are done so don't do it here
def end_export
end
# Called on tracker start, once for each tracker. Receives the name of the tracker.
def start_tracker_segment(tracker_name)
end
# Called on tracker end
def end_tracker_segment
end
# Called for each tracker keyframe, with the Tracksperanto internal coordinates and frame numbers
def export_point(at_frame_i, abs_float_x, abs_float_y, float_residual)
end
end
Version data entries
13 entries across 13 versions & 1 rubygems