maya_locators.rb in tracksperanto-2.9.5

- old
+ new
@@ -1,25 +1,33 @@
 # -*- encoding : utf-8 -*-
 # Export each tracker as a moving Maya locator
 class Tracksperanto::Export::MayaLocators < Tracksperanto::Export::Base
+  SCENE_PREAMBLE = [
+    '//Maya ASCII 2011 scene',
+    '//Name: TracksperantoLocators.ma',
+    '//Codeset: UTF-8',
+    'requires maya "1.0";'
+  ].join("\n")
+  
   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"
+    "mayaLocators.ma"
   end
   
   def self.human_name
-    "Maya .mel script that generates locators"
+    "Maya ASCII scene with locators on an image plane"
   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(SCENE_PREAMBLE)
     @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