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diff --git a/progs/demo/X11/animation/r_constants.hs b/progs/demo/X11/animation/r_constants.hs
new file mode 100644
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+++ b/progs/demo/X11/animation/r_constants.hs
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+{-****************************************************************
+   MODULE R_CONSTANTS
+
+     This module sets up all the constants used in this functional
+   animation package.
+     Defined here are the basic units of movement, scale and rotation.
+   The screen height and width are set, and the various parts of
+   the screen such as the top-middle, lower-left and center are
+   all set. Finally the color values used by xcshow, the c-program
+   that displays the movies in X, are set.
+
+******************************************************************-}
+
+module R_Constants (fps, unit, hf, qt, scaleunit, rotunit,
+                    nullpic, nullseq,
+                    sinunit,cosunit,
+                    screenwid, screenht, botl, leftm, topl, topm, topr,
+                    rightm, botr, botm, center,
+		    white,black,red,green,darkblue,lightblue,brown,yellow,
+		    colorName, allColors
+			) where
+
+import R_Ptypes
+
+  -- units are set. The scaleunit is in 11th, so that the 12 is
+  -- actually 12/11'ths
+fps :: Int
+unit :: Int
+hf :: Int
+qt :: Int
+scaleunit :: Int
+fps = 25
+unit = 15
+hf =  unit `div` 2
+qt =  unit `div`4
+scaleunit = 12
+  --scaleunit is div'ed by 12 later
+
+rotunit :: Float
+rotunit  = pi/18
+sinunit  = sin rotunit
+cosunit  = cos rotunit
+
+
+nullpic :: Pic
+nullpic = []
+nullseq :: Movie
+nullseq= nullpic : [ nullseq2 | nullseq2 <- nullseq]
+
+  -- Screen Parameters
+screenwid :: Int
+screenwid = 800
+screenht :: Int
+screenht  = 800
+
+botl :: Vec
+leftm :: Vec
+topl :: Vec
+topm :: Vec
+topr :: Vec
+rightm :: Vec
+botr :: Vec
+botm :: Vec
+center :: Vec
+
+leftmb :: Vec
+leftmt :: Vec
+topml :: Vec
+topmr :: Vec
+rightmt :: Vec
+rightmb :: Vec
+botml :: Vec
+botmr :: Vec
+
+botl   = ( 0, 0 )
+leftm  = ( 0, screenht `div` 2)
+topl   = ( 0, screenht )
+topm   = ( screenwid `div` 2, screenht )
+topr   = ( screenwid, screenht )
+rightm = ( screenwid, screenht `div` 2 )
+botr   = ( screenwid, 0 )
+botm   = ( screenwid `div` 2, 0 )
+center = ( screenwid `div` 2, screenht `div` 2 )
+
+leftmb  = ( 0, screenht `div` 4 )
+leftmt  = ( 0, (screenht*3) `div` 4 )
+topml   = ( screenwid `div` 4, screenht )
+topmr   = ( (screenwid*3) `div` 4, screenht )
+rightmt = ( screenwid, (screenht*3) `div` 4 )
+rightmb = ( screenwid, screenht `div` 4 )
+botml   = ( screenwid `div` 4, 0 )
+botmr   = ( (screenwid*3) `div` 4, 0 )
+
+  -- Colors values set to names
+
+white :: Color
+white = 1
+black :: Color
+black = 2
+red :: Color
+red = 4
+green :: Color
+green = 6
+darkblue :: Color
+darkblue = 8
+lightblue :: Color
+lightblue = 10
+yellow :: Color
+yellow = 12
+brown :: Color
+brown = 14
+
+colorName :: Color -> String
+colorName 1 = "white"
+colorName 2 = "black"
+colorName 4 = "red"
+colorName 6 = "green"
+colorName 8 = "blue"
+colorName 10 = "lightblue"
+colorName 12 = "yellow"
+colorName 14 = "brown"
+
+allColors :: [Color]
+allColors = [1,2,4,6,8,10,12,14]
+
+
+
+
+