Added the python class to convert bytes to CVS since its currently a

dependancy. Need to change the name and include only ptz stuff in the
script.

svn path=/trunk/abstractions/ptz-camera/; revision=7484

1 files changed, 111 insertions, 0 deletions

diff --git a/membrane.py b/membrane.py
new file mode 100644
index 0000000..084d904
--- /dev/null
+++ b/membrane.py
@@ -0,0 +1,111 @@
+import pyext
+import sys
+from numarray import *
+
+class tixel_coords(pyext._class):
+
+  # number of inlets and outlets
+  _inlets=1
+  _outlets=1
+
+  # Vars
+  numWide = float(4)
+  numHigh = float(3)
+  sectionWidth = float()
+  sectionHeight = float()
+  myarray = array()
+
+  print "tixel_coords init"
+
+  # Definitions
+
+  # Constructor
+
+  def __init__(self,*args):
+    if len(args) == 2:
+      self.numWide = args[0]
+      self.numHigh = args[1]
+      
+      self.sectionWidth = 1.0/self.numWide
+      self.sectionHeight = 1.0/self.numHigh
+
+      self.myarray = arange(self.numWide*self.numHigh, shape=(self.numHigh,self.numWide), type=Int)
+      
+    else:
+      print "External requires 4 arguments: <numWide> <numHeight>"
+
+  # methods for first inlet
+  def bang_(self,n):
+    for i in xrange(int(self.numWide)):
+      for j in xrange(int(self.numHigh)):
+        left = float(i)*self.sectionWidth
+        right = left + self.sectionWidth
+        bottom = float(j)*self.sectionHeight
+        top = bottom+self.sectionHeight
+        x = self.myarray[j,i]
+
+        # constructing list for each tixel
+        self._outlet(1,x,"coords",left,right,top,bottom)
+        
+class int2bytes(pyext._class):
+
+  # number of inlets and outlets
+  _inlets=1
+  _outlets=4
+
+  print "int2bytes init"
+
+  # Constructor
+
+  # methods 
+  def float_1(self,number):
+    number = int(number)
+    for count in xrange(4):
+      byte = (number & 0xF000) >> 12
+      number <<=4
+      self._outlet(count+1,byte)
+      
+class seekArray3d(pyext._class):
+
+  # number of inlets and outlets
+  _inlets=1
+  _outlets=1
+
+  print "seekArray init"
+
+  # Vars
+  width = int()
+  height = int()
+  depth = int()
+  index = array()
+
+  # Constructor
+  def __init__(self,*args):
+    if len(args) == 3:
+      self.width = args[0]
+      self.height = args[1]
+      self.depth = args[2]
+      
+      self.index = arange(self.width*self.height*self.depth,type=Int32,shape=(self.depth,self.height,self.width))
+    else:
+    	print "you need to specify at least three aguments: <width> <height> <depth>"
+
+  # methods 
+  def seek_1(self,*l):
+    if len(l) == 3:
+      zoom = l[0]
+      tilt = l[1]
+      pan = l[2]
+      position = self.index[zoom+1,tilt+1,pan]
+      self._outlet(1,position)
+    else:
+    	print "you need to specify at least three aguments: seek <zoom> <tilt> <pan>"
+      
+			
+  def float_1(self,number):
+    number = int(number)
+    for count in xrange(4):
+      byte = (number & 0xF000) >> 12
+      number <<=4
+      self._outlet(count+1,byte)
+      
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