# -*- encoding : utf-8 -*- # Export each tracker as a moving Maya locator class Tracksperanto::Export::MayaLocators < Tracksperanto::Export::Base PREAMBLE = 'polyPlane -name "TracksperantoImagePlane" -width %0.5f -height %0.5f;' LOCATOR_PREAMBLE = 'spaceLocator -name "%s" -p 0 0 0;' KEYFRAME_TEMPLATE = 'setKeyframe -time %d -value %0.5f "%s.%s";'; MULTIPLIER = 10.0 def self.desc_and_extension "mayaLocators.mel" end def self.human_name "Maya .mel script that generates locators" end def start_export(w, h) # Pixel sizes are HUGE for maya. What we do is we assume that the width is 1, # and scale the height to that @factor = (1 / w.to_f) * MULTIPLIER @io.puts(PREAMBLE % [MULTIPLIER, h * @factor]) @io.puts('rotate -r -os 90;') # Position it in the XY plane @io.puts('move -r %0.5f %0.5f 0;' % [MULTIPLIER / 2.0, h * @factor / 2.0]) @group_members = ["TracksperantoImagePlane"] end def start_tracker_segment(tracker_name) @locator_name = tracker_name @io.puts(LOCATOR_PREAMBLE % @locator_name) @group_members.push(tracker_name) end def export_point(frame, abs_float_x, abs_float_y, float_residual) @io.puts(KEYFRAME_TEMPLATE % [frame + 1, abs_float_x * @factor, @locator_name, "tx"]) @io.puts(KEYFRAME_TEMPLATE % [frame + 1, abs_float_y * @factor, @locator_name, "ty"]) end def end_export # Group all the stuff @io.puts('select -r %s;' % @group_members.join(' ')) @io.puts('group -name TracksperantoGroup; xform -os -piv 0 0 0;') end end