Add script to generate zone names

--HG--
branch : develop

code/nel/tools/3d/plugin_max/scripts/nel_zone_namer.ms

@@ -0,0 +1,68 @@
+-- This script sets proper centered zone positions and generates their names
+-- Use after cutting the zone into 160m by 160m pieces
+
+cell_size = 160.0
+offset_x = 7680 / 2
+offset_y = -(20480 + (5120 / 2))
+
+alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 
+
+-- http://proofofprogress.blogspot.be/2011/03/solution-align-pivot-to-world-without.html
+Function alignPivotToWorld &theObject = (
+	--VLM = Visible Local Matrix.
+	--The matrix/pivot you see when selecting object and "Local" axis is selected as viewable.
+	VLM = theObject.Transform;
+	IP_LocalRot = theObject.objectOffsetRot; --Rotation to be used later.
+	IP_LOCAL = theObject.objectOffsetPos;  --Invisible Pivot Local coordinates
+	--In relation to VLM matrix.
+	IP_WORLD = IP_LOCAL * VLM; --World Coordinates of Invisible Pivot. [Local To World Transform]
+	VLM_0 = matrix3 1; --Reset Visible Local matrix coordinates.
+
+	NEW_IP_LOCAL = IP_WORLD * inverse(VLM_0); --[World To local Transform]
+
+	theObject.Transform = VLM_0;
+	theObject.objectOffsetPos = NEW_IP_LOCAL;
+
+	--Now Handle Rotation:
+	--Since rotation of visible local matrix has been zeroed out,
+	--You must add that loss to the invisible pivot rotation.
+	GeomWorldRot = VLM.RotationPart + IP_LocalRot;
+	theObject.objectOffsetRot = GeomWorldRot;
+)
+	
+-- Convert a coordinate in a name
+-- name = coordToName #(x, y)
+fn coordToName coord =
+(
+	up = floor(coord[1] / 26) + 1
+	down = floor(coord[1] - ((up-1) * 26)) + 1
+	return (((-coord[2] + 1) as integer) as string) + "_" + alphabet[up] + alphabet[down]
+)
+
+fn realCoordToName coord =
+(
+	return coordToName(#(((coord[1] + offset_x) / cell_size) + 0.5, ((coord[2] + offset_y) / cell_size) + 0.5))
+)
+
+fn roundedCoord coord =
+(
+	return #(ceil(coord[1] / cell_size) * cell_size - (cell_size / 2), ceil(coord[2] / cell_size) * cell_size - (cell_size / 2))
+)
+
+max select none
+clearselection()
+
+for node in geometry do
+(
+	if (classof node) == RklPatch or (classof node) == Editable_Patch then 
+	(
+		newcoords = roundedCoord(#(node.center.x, node.center.y))
+		newname = realCoordToName(newcoords)
+		node.name = newname
+		alignPivotToWorld &node
+		node.pivot.x = newcoords[1]
+		node.pivot.y = newcoords[2]
+		resetxform node
+		maxOps.CollapseNode node off
+	)
+)