class Tracksperanto::Export::XSI

Export each tracker as a moving Softimage|XSI null

Constants

IMAGE_PLANE
MULTIPLIER

Public Class Methods

desc_and_extension() click to toggle source
# File lib/export/xsi.rb, line 12
def self.desc_and_extension
  "xsi_nulls.py"
end
human_name() click to toggle source
# File lib/export/xsi.rb, line 16
def self.human_name
  "Autodesk Softimage nulls Python script"
end

Public Instance Methods

end_export() click to toggle source
# File lib/export/xsi.rb, line 51
def end_export
  # Create a Model group and parent all the trackers and the image plane to it
  @io.puts('Application.DeselectAll()')
  @io.puts('Application.AddToSelection("ImagePlane", "", "")')
  @tracker_names.each do | tracker_name |
    @io.puts('Application.AddToSelection("%s", "", "")' % tracker_name)
  end
  @io.puts('Application.CreateModel("", "", "", "")')
  @io.puts('Application.SetValue("Model.Name", "Tracksperanto", "")')
end
end_tracker_segment() click to toggle source
# File lib/export/xsi.rb, line 40
def end_tracker_segment
  # Parent the null to the image plane
  @tracker_names.push(@t)
end
export_point(frame, abs_float_x, abs_float_y, float_residual) click to toggle source
# File lib/export/xsi.rb, line 45
def export_point(frame, abs_float_x, abs_float_y, float_residual)
  coords = get_coordinates(abs_float_x, abs_float_y)
  @io.puts('Application.Translate("", %0.5f, %0.5f, 0, "siAbsolute", "siView", "siObj", "siXYZ", "", "", "", "", "", "", "", "", "", 0, "")'% coords)
  @io.puts('Application.SaveKeyOnKeyable("%s", %d, "", "", "", False, "")' % [@t, frame + 1])
end
start_export(w, h) click to toggle source
# File lib/export/xsi.rb, line 20
def start_export(w, h)
  # Pixel sizes are HUGE. Hence we downscale
  @factor = (1 / w.to_f) * MULTIPLIER
  @true_width, @true_height = w * @factor, h * @factor
  
  # Generate a Grid primitive
  @io.puts(IMAGE_PLANE % [@true_width, @true_height])
  @tracker_names = []
end
start_tracker_segment(tracker_name) click to toggle source
# File lib/export/xsi.rb, line 30
def start_tracker_segment(tracker_name)
  @t = tracker_name
  @io.puts("# Data for tracker %s" % @t)
  @io.puts 'Application.GetPrim("Null", "", "", "")'
  @io.puts('Application.SetValue("null.Name", "%s", "")' % @t)
  # Application.ToggleSelection("Track_Point_02", "", "")
  # Select the tracker that we will animate
  @io.puts('Application.SelectObj("%s", "", True)' % @t)
end

Private Instance Methods

get_coordinates(x, y) click to toggle source
# File lib/export/xsi.rb, line 64
def get_coordinates(x, y)
  # Get the coords multiplied by factor, and let the scene origin be the center of the composition
  [(x * @factor) - (@true_width / 2), y * @factor - (@true_height / 2)]
end