X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=blender%2Fio_mspgl%2Futil.py;h=6e8ec7746bde7c41b5c4791dfca602d7dd65503b;hb=HEAD;hp=000190fe05e2cb80510121c90afd945378dd3ba6;hpb=820d8ff86b911f1119b8cde03839687176b9b1ee;p=libs%2Fgl.git

diff --git a/blender/io_mspgl/util.py b/blender/io_mspgl/util.py
index 000190fe..bfabfa35 100644
--- a/blender/io_mspgl/util.py
+++ b/blender/io_mspgl/util.py
@@ -1,20 +1,41 @@
-class Progress:
-	def __init__(self, context):
-		self.task = ""
-		self.start = 0.0
-		self.delta = 1.0
-		self.last = 0.0
-		self.window_manager = context.window_manager
-		self.window_manager.progress_begin(0.0, 1.0)
+def linear_to_srgb(l):
+	if l<0.0031308:
+		return 12.92*l
+	else:
+		return 1.055*(l**(1/2.4))-0.055
 
-	def set_task(self, task, low, high):
-		self.task = task
-		self.start = low
-		self.delta = high-low
-		self.set_progress(0)
+def get_colormap(srgb):
+	if srgb:
+		return linear_to_srgb
+	else:
+		return lambda x: x
 
-	def set_progress(self, value):
-		value = self.start+self.delta*value
-		if value>self.last+0.01:
-			self.window_manager.progress_update(value)
-			self.last = value
+def make_unique(values):
+	seen = set()
+	result = []
+	for i in values:
+		if i not in seen:
+			result.append(i)
+			seen.add(i)
+	return result
+
+def get_linked_node_and_socket(node_tree, socket):
+	for l in node_tree.links:
+		if socket==l.to_socket:
+			return (l.from_node, l.from_socket)
+		elif socket==l.from_socket:
+			return (l.to_node, l.to_socket)
+	return (None, None)
+
+def compute_bounding_sphere(points):
+	p1 = max(((p, p.length) for p in points), key=lambda x:x[1])[0]
+	p2 = max(((p, (p-p1).length) for p in points), key=lambda x:x[1])[0]
+	center = (p1+p2)/2
+	radius = (p1-p2).length/2
+	for p in points:
+		d = p-center
+		if d.length>radius:
+			center += d*(1-radius/d.length)/2
+			radius = (radius+d.length)/2
+
+	return center, radius