yet another reorganization round...

git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@58 4cde692c-a291-49d1-8350-778aa11640f8

Lib/fontTools/misc/arrayTools.py

@@ -0,0 +1,42 @@
+#
+# This module should move to a more appropriate location
+#
+
+import Numeric
+
+
+def calcBounds(array):
+	"""Calculate the bounding rectangle of a 2D array.
+	Returns a 4-tuple:
+		smallest x, smallest y, largest x, largest y.
+	"""
+	if len(array) == 0:
+		return 0, 0, 0, 0
+	xmin, ymin = Numeric.minimum.reduce(array)
+	xmax, ymax = Numeric.maximum.reduce(array)
+	return xmin, ymin, xmax, ymax
+
+
+def pointsInRect(array, rect):
+	"""Find out which points or array are inside rect. 
+	Returns an array with a boolean for each point.
+	"""
+	if len(array) < 1:
+		return []
+	lefttop = rect[:2]
+	rightbottom = rect[2:]
+	condition = Numeric.logical_and(
+			Numeric.greater(array, lefttop), 
+			Numeric.less(array, rightbottom))
+	return Numeric.logical_and.reduce(condition, -1)
+
+
+def normRect((l, t, r, b)):
+	"""XXX doc"""
+	return min(l, r), min(t, b), max(l, r), max(t, b)
+
+def scaleRect((l, t, r, b), x, y):
+	return l * x, t * y, r * x, b * y
+
+def offsetRect((l, t, r, b), dx, dy):
+	return l+dx, t+dy, r+dx, b+dy