lib/import/nuke_script.rb in tracksperanto-3.5.2 vs lib/import/nuke_script.rb in tracksperanto-3.5.4

@@ -123,10 +123,13 @@
     def initialize(options)
       
       @name = options["name"]
       @trackers = []
       tracks = options["tracks"]
+      
+      return unless tracks # For linked Tracker nodes that have no tracks
+      
       preamble = tracks[1]
       headers = tracks[2]
       values = tracks[3]
       
       # When this was written, this was the order of the columns in the table:
@@ -140,15 +143,18 @@
       tracker_rows[1..-1].each do | row |
         row_content = row[0]
         
         # For offsets see above
         point_name = row_content[2]
-        x_curve = Tickly::Curve.new(row_content[3])
-        y_curve = Tickly::Curve.new(row_content[4])
-        
-        full_name = [options["name"], point_name].join('_')
-        tracker = package_tracker(full_name, x_curve, y_curve)
-        @trackers << tracker
+        begin
+          x_curve = Tickly::Curve.new(row_content[3])
+          y_curve = Tickly::Curve.new(row_content[4])
+          full_name = [options["name"], point_name].join('_')
+          tracker = package_tracker(full_name, x_curve, y_curve)
+          @trackers << tracker
+        rescue Tickly::Curve::InvalidCurveError
+          # $stderr.puts "Failed to recover a tracker, it probably contained expressions"
+        end
       end
     end
   end
 end