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Reverting to prior version of Astrolabe

James Whitehead II [08-20-08 - 21:27]
Reverting to prior version of Astrolabe
Filename
libs/Astrolabe/Astrolabe.lua
libs/Astrolabe/AstrolabeMapMonitor.lua
libs/Astrolabe/DongleStub.lua
libs/Astrolabe/Load.xml
libs/Astrolabe/lgpl.txt
diff --git a/libs/Astrolabe/Astrolabe.lua b/libs/Astrolabe/Astrolabe.lua
new file mode 100644
index 0000000..08ada85
--- /dev/null
+++ b/libs/Astrolabe/Astrolabe.lua
@@ -0,0 +1,1415 @@
+--[[
+Name: Astrolabe
+Revision: $Rev: 78 $
+$Date: 2008-03-28 06:05:05 +0000 (Fri, 28 Mar 2008) $
+Author(s): Esamynn (esamynn at wowinterface.com)
+Inspired By: Gatherer by Norganna
+             MapLibrary by Kristofer Karlsson (krka at kth.se)
+Documentation: http://wiki.esamynn.org/Astrolabe
+SVN: http://svn.esamynn.org/astrolabe/
+Description:
+	This is a library for the World of Warcraft UI system to place
+	icons accurately on both the Minimap and on Worldmaps.
+	This library also manages and updates the position of Minimap icons
+	automatically.
+
+Copyright (C) 2006-2008 James Carrothers
+
+License:
+	This library is free software; you can redistribute it and/or
+	modify it under the terms of the GNU Lesser General Public
+	License as published by the Free Software Foundation; either
+	version 2.1 of the License, or (at your option) any later version.
+
+	This library is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+	Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public
+	License along with this library; if not, write to the Free Software
+	Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+Note:
+	This library's source code is specifically designed to work with
+	World of Warcraft's interpreted AddOn system.  You have an implicit
+	licence to use this library with these facilities since that is its
+	designated purpose as per:
+	http://www.fsf.org/licensing/licenses/gpl-faq.html#InterpreterIncompat
+]]
+
+-- WARNING!!!
+-- DO NOT MAKE CHANGES TO THIS LIBRARY WITHOUT FIRST CHANGING THE LIBRARY_VERSION_MAJOR
+-- STRING (to something unique) OR ELSE YOU MAY BREAK OTHER ADDONS THAT USE THIS LIBRARY!!!
+local LIBRARY_VERSION_MAJOR = "Astrolabe-0.4"
+local LIBRARY_VERSION_MINOR = tonumber(string.match("$Revision: 78 $", "(%d+)") or 1)
+
+if not DongleStub then error(LIBRARY_VERSION_MAJOR .. " requires DongleStub.") end
+if not DongleStub:IsNewerVersion(LIBRARY_VERSION_MAJOR, LIBRARY_VERSION_MINOR) then return end
+
+local Astrolabe = {};
+
+-- define local variables for Data Tables (defined at the end of this file)
+local WorldMapSize, MinimapSize, ValidMinimapShapes;
+
+function Astrolabe:GetVersion()
+	return LIBRARY_VERSION_MAJOR, LIBRARY_VERSION_MINOR;
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Config Constants
+--------------------------------------------------------------------------------------------------------------
+
+local configConstants = {
+	MinimapUpdateMultiplier = true,
+}
+
+-- this constant is multiplied by the current framerate to determine
+-- how many icons are updated each frame
+Astrolabe.MinimapUpdateMultiplier = 1;
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Working Tables
+--------------------------------------------------------------------------------------------------------------
+
+Astrolabe.LastPlayerPosition = { 0, 0, 0, 0 };
+Astrolabe.MinimapIcons = {};
+Astrolabe.IconsOnEdge = {};
+Astrolabe.IconsOnEdge_GroupChangeCallbacks = {};
+
+Astrolabe.UpdateTimer = 0;
+Astrolabe.ForceNextUpdate = false;
+Astrolabe.IconsOnEdgeChanged = false;
+
+-- This variable indicates whether we know of a visible World Map or not.
+-- The state of this variable is controlled by the AstrolabeMapMonitor library.
+Astrolabe.WorldMapVisible = false;
+
+local AddedOrUpdatedIcons = {}
+local MinimapIconsMetatable = { __index = AddedOrUpdatedIcons }
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Local Pointers for often used API functions
+--------------------------------------------------------------------------------------------------------------
+
+local twoPi = math.pi * 2;
+local atan2 = math.atan2;
+local sin = math.sin;
+local cos = math.cos;
+local abs = math.abs;
+local sqrt = math.sqrt;
+local min = math.min
+local yield = coroutine.yield
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Internal Utility Functions
+--------------------------------------------------------------------------------------------------------------
+
+local function assert(level,condition,message)
+	if not condition then
+		error(message,level)
+	end
+end
+
+local function argcheck(value, num, ...)
+	assert(1, type(num) == "number", "Bad argument #2 to 'argcheck' (number expected, got " .. type(level) .. ")")
+
+	for i=1,select("#", ...) do
+		if type(value) == select(i, ...) then return end
+	end
+
+	local types = strjoin(", ", ...)
+	local name = string.match(debugstack(2,2,0), ": in function [`<](.-)['>]")
+	error(string.format("Bad argument #%d to 'Astrolabe.%s' (%s expected, got %s)", num, name, types, type(value)), 3)
+end
+
+local function getContPosition( zoneData, z, x, y )
+	if ( z ~= 0 ) then
+		zoneData = zoneData[z];
+		x = x * zoneData.width + zoneData.xOffset;
+		y = y * zoneData.height + zoneData.yOffset;
+	else
+		x = x * zoneData.width;
+		y = y * zoneData.height;
+	end
+	return x, y;
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- General Utility Functions
+--------------------------------------------------------------------------------------------------------------
+
+function Astrolabe:ComputeDistance( c1, z1, x1, y1, c2, z2, x2, y2 )
+	--[[
+	argcheck(c1, 2, "number");
+	assert(3, c1 >= 0, "ComputeDistance: Illegal continent index to c1: "..c1);
+	argcheck(z1, 3, "number", "nil");
+	argcheck(x1, 4, "number");
+	argcheck(y1, 5, "number");
+	argcheck(c2, 6, "number");
+	assert(3, c2 >= 0, "ComputeDistance: Illegal continent index to c2: "..c2);
+	argcheck(z2, 7, "number", "nil");
+	argcheck(x2, 8, "number");
+	argcheck(y2, 9, "number");
+	--]]
+
+	z1 = z1 or 0;
+	z2 = z2 or 0;
+
+	local dist, xDelta, yDelta;
+	if ( c1 == c2 and z1 == z2 ) then
+		-- points in the same zone
+		local zoneData = WorldMapSize[c1];
+		if ( z1 ~= 0 ) then
+			zoneData = zoneData[z1];
+		end
+		xDelta = (x2 - x1) * zoneData.width;
+		yDelta = (y2 - y1) * zoneData.height;
+
+	elseif ( c1 == c2 ) then
+		-- points on the same continent
+		local zoneData = WorldMapSize[c1];
+		x1, y1 = getContPosition(zoneData, z1, x1, y1);
+		x2, y2 = getContPosition(zoneData, z2, x2, y2);
+		xDelta = (x2 - x1);
+		yDelta = (y2 - y1);
+
+	elseif ( c1 and c2 ) then
+		local cont1 = WorldMapSize[c1];
+		local cont2 = WorldMapSize[c2];
+		if ( cont1.parentContinent == cont2.parentContinent ) then
+			x1, y1 = getContPosition(cont1, z1, x1, y1);
+			x2, y2 = getContPosition(cont2, z2, x2, y2);
+			if ( c1 ~= cont1.parentContinent ) then
+				x1 = x1 + cont1.xOffset;
+				y1 = y1 + cont1.yOffset;
+			end
+			if ( c2 ~= cont2.parentContinent ) then
+				x2 = x2 + cont2.xOffset;
+				y2 = y2 + cont2.yOffset;
+			end
+
+			xDelta = x2 - x1;
+			yDelta = y2 - y1;
+		end
+
+	end
+	if ( xDelta and yDelta ) then
+		dist = sqrt(xDelta*xDelta + yDelta*yDelta);
+	end
+	return dist, xDelta, yDelta;
+end
+
+function Astrolabe:TranslateWorldMapPosition( C, Z, xPos, yPos, nC, nZ )
+	--[[
+	argcheck(C, 2, "number");
+	argcheck(Z, 3, "number", "nil");
+	argcheck(xPos, 4, "number");
+	argcheck(yPos, 5, "number");
+	argcheck(nC, 6, "number");
+	argcheck(nZ, 7, "number", "nil");
+	--]]
+
+	Z = Z or 0;
+	nZ = nZ or 0;
+	if ( nC < 0 ) then
+		return;
+	end
+
+	local zoneData;
+	if ( C == nC and Z == nZ ) then
+		return xPos, yPos;
+
+	elseif ( C == nC ) then
+		-- points on the same continent
+		zoneData = WorldMapSize[C];
+		xPos, yPos = getContPosition(zoneData, Z, xPos, yPos);
+		if ( nZ ~= 0 ) then
+			zoneData = WorldMapSize[C][nZ];
+			xPos = xPos - zoneData.xOffset;
+			yPos = yPos - zoneData.yOffset;
+		end
+
+	elseif ( C and nC ) and ( WorldMapSize[C].parentContinent == WorldMapSize[nC].parentContinent ) then
+		-- different continents, same world
+		zoneData = WorldMapSize[C];
+		local parentContinent = zoneData.parentContinent;
+		xPos, yPos = getContPosition(zoneData, Z, xPos, yPos);
+		if ( C ~= parentContinent ) then
+			-- translate up to world map if we aren't there already
+			xPos = xPos + zoneData.xOffset;
+			yPos = yPos + zoneData.yOffset;
+			zoneData = WorldMapSize[parentContinent];
+		end
+		if ( nC ~= parentContinent ) then
+			-- translate down to the new continent
+			zoneData = WorldMapSize[nC];
+			xPos = xPos - zoneData.xOffset;
+			yPos = yPos - zoneData.yOffset;
+			if ( nZ ~= 0 ) then
+				zoneData = zoneData[nZ];
+				xPos = xPos - zoneData.xOffset;
+				yPos = yPos - zoneData.yOffset;
+			end
+		end
+
+	else
+		return;
+	end
+
+	return (xPos / zoneData.width), (yPos / zoneData.height);
+end
+
+--*****************************************************************************
+-- This function will do its utmost to retrieve some sort of valid position
+-- for the specified unit, including changing the current map zoom (if needed).
+-- Map Zoom is returned to its previous setting before this function returns.
+--*****************************************************************************
+function Astrolabe:GetUnitPosition( unit, noMapChange )
+	local x, y = GetPlayerMapPosition(unit);
+	if ( x <= 0 and y <= 0 ) then
+		if ( noMapChange ) then
+			-- no valid position on the current map, and we aren't allowed
+			-- to change map zoom, so return
+			return;
+		end
+		local lastCont, lastZone = GetCurrentMapContinent(), GetCurrentMapZone();
+		SetMapToCurrentZone();
+		x, y = GetPlayerMapPosition(unit);
+		if ( x <= 0 and y <= 0 ) then
+			SetMapZoom(GetCurrentMapContinent());
+			x, y = GetPlayerMapPosition(unit);
+			if ( x <= 0 and y <= 0 ) then
+				-- we are in an instance or otherwise off the continent map
+				return;
+			end
+		end
+		local C, Z = GetCurrentMapContinent(), GetCurrentMapZone();
+		if ( C ~= lastCont or Z ~= lastZone ) then
+			SetMapZoom(lastCont, lastZone); -- set map zoom back to what it was before
+		end
+		return C, Z, x, y;
+	end
+	return GetCurrentMapContinent(), GetCurrentMapZone(), x, y;
+end
+
+--*****************************************************************************
+-- This function will do its utmost to retrieve some sort of valid position
+-- for the specified unit, including changing the current map zoom (if needed).
+-- However, if a monitored WorldMapFrame (See AstrolabeMapMonitor.lua) is
+-- visible, then will simply return nil if the current zoom does not provide
+-- a valid position for the player unit.  Map Zoom is returned to its previous
+-- setting before this function returns, if it was changed.
+--*****************************************************************************
+function Astrolabe:GetCurrentPlayerPosition()
+	local x, y = GetPlayerMapPosition("player");
+	if ( x <= 0 and y <= 0 ) then
+		if ( self.WorldMapVisible ) then
+			-- we know there is a visible world map, so don't cause
+			-- WORLD_MAP_UPDATE events by changing map zoom
+			return;
+		end
+		local lastCont, lastZone = GetCurrentMapContinent(), GetCurrentMapZone();
+		SetMapToCurrentZone();
+		x, y = GetPlayerMapPosition("player");
+		if ( x <= 0 and y <= 0 ) then
+			SetMapZoom(GetCurrentMapContinent());
+			x, y = GetPlayerMapPosition("player");
+			if ( x <= 0 and y <= 0 ) then
+				-- we are in an instance or otherwise off the continent map
+				return;
+			end
+		end
+		local C, Z = GetCurrentMapContinent(), GetCurrentMapZone();
+		if ( C ~= lastCont or Z ~= lastZone ) then
+			SetMapZoom(lastCont, lastZone); --set map zoom back to what it was before
+		end
+		return C, Z, x, y;
+	end
+	return GetCurrentMapContinent(), GetCurrentMapZone(), x, y;
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Working Table Cache System
+--------------------------------------------------------------------------------------------------------------
+
+local tableCache = {};
+tableCache["__mode"] = "v";
+setmetatable(tableCache, tableCache);
+
+local function GetWorkingTable( icon )
+	if ( tableCache[icon] ) then
+		return tableCache[icon];
+	else
+		local T = {};
+		tableCache[icon] = T;
+		return T;
+	end
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Minimap Icon Placement
+--------------------------------------------------------------------------------------------------------------
+
+--*****************************************************************************
+-- local variables specifically for use in this section
+--*****************************************************************************
+local minimapRotationEnabled = false;
+local minimapShape = false;
+
+-- I don't cache the actual direction information because I don't want to
+-- encur the work required to retrieve it unless I'm actually going to use the information.
+local MinimapCompassRing = MiniMapCompassRing;
+
+
+local function placeIconOnMinimap( minimap, minimapZoom, mapWidth, mapHeight, icon, dist, xDist, yDist )
+	local mapDiameter;
+	if ( Astrolabe.minimapOutside ) then
+		mapDiameter = MinimapSize.outdoor[minimapZoom];
+	else
+		mapDiameter = MinimapSize.indoor[minimapZoom];
+	end
+	local mapRadius = mapDiameter / 2;
+	local xScale = mapDiameter / mapWidth;
+	local yScale = mapDiameter / mapHeight;
+	local iconDiameter = ((icon:GetWidth() / 2) + 3) * xScale;
+	local iconOnEdge = nil;
+	local isRound = true;
+
+	if ( minimapRotationEnabled ) then
+		-- for the life of me, I cannot figure out why the following
+		-- math works, but it does
+		local dir = atan2(xDist, yDist) + MinimapCompassRing:GetFacing();
+		xDist = dist * sin(dir);
+		yDist = dist * cos(dir);
+	end
+
+	if ( minimapShape and not (xDist == 0 or yDist == 0) ) then
+		isRound = (xDist < 0) and 1 or 3;
+		if ( yDist < 0 ) then
+			isRound = minimapShape[isRound];
+		else
+			isRound = minimapShape[isRound + 1];
+		end
+	end
+
+	-- for non-circular portions of the Minimap edge
+	if not ( isRound ) then
+		dist = (abs(xDist) > abs(yDist)) and abs(xDist) or abs(yDist);
+	end
+
+	if ( (dist + iconDiameter) > mapRadius ) then
+		-- position along the outside of the Minimap
+		iconOnEdge = true;
+		local factor = (mapRadius - iconDiameter) / dist;
+		xDist = xDist * factor;
+		yDist = yDist * factor;
+	end
+
+	if ( Astrolabe.IconsOnEdge[icon] ~= iconOnEdge ) then
+		Astrolabe.IconsOnEdge[icon] = iconOnEdge;
+		Astrolabe.IconsOnEdgeChanged = true;
+	end
+
+	icon:ClearAllPoints();
+	icon:SetPoint("CENTER", minimap, "CENTER", xDist/xScale, -yDist/yScale);
+end
+
+function Astrolabe:PlaceIconOnMinimap( icon, continent, zone, xPos, yPos )
+	-- check argument types
+	argcheck(icon, 2, "table");
+	assert(3, icon.SetPoint and icon.ClearAllPoints, "Usage Message");
+	argcheck(continent, 3, "number");
+	argcheck(zone, 4, "number", "nil");
+	argcheck(xPos, 5, "number");
+	argcheck(yPos, 6, "number");
+
+	local lC, lZ, lx, ly = unpack(self.LastPlayerPosition);
+	local dist, xDist, yDist = self:ComputeDistance(lC, lZ, lx, ly, continent, zone, xPos, yPos);
+	if not ( dist ) then
+		--icon's position has no meaningful position relative to the player's current location
+		return -1;
+	end
+	local iconData = GetWorkingTable(icon);
+	if ( self.MinimapIcons[icon] ) then
+		self.MinimapIcons[icon] = nil;
+	end
+	AddedOrUpdatedIcons[icon] = iconData
+
+	iconData.continent = continent;
+	iconData.zone = zone;
+	iconData.xPos = xPos;
+	iconData.yPos = yPos;
+	iconData.dist = dist;
+	iconData.xDist = xDist;
+	iconData.yDist = yDist;
+
+	minimapRotationEnabled = GetCVar("rotateMinimap") ~= "0"
+
+	-- check Minimap Shape
+	minimapShape = GetMinimapShape and ValidMinimapShapes[GetMinimapShape()];
+
+	-- place the icon on the Minimap and :Show() it
+	local map = Minimap
+	placeIconOnMinimap(map, map:GetZoom(), map:GetWidth(), map:GetHeight(), icon, dist, xDist, yDist);
+	icon:Show()
+
+	return 0;
+end
+
+function Astrolabe:RemoveIconFromMinimap( icon )
+	if not ( self.MinimapIcons[icon] ) then
+		return 1;
+	end
+	AddedOrUpdatedIcons[icon] = nil
+	self.MinimapIcons[icon] = nil;
+	self.IconsOnEdge[icon] = nil;
+	icon:Hide();
+	return 0;
+end
+
+function Astrolabe:RemoveAllMinimapIcons()
+	self:DumpNewIconsCache()
+	local minimapIcons = self.MinimapIcons;
+	local IconsOnEdge = self.IconsOnEdge;
+	for k, v in pairs(minimapIcons) do
+		minimapIcons[k] = nil;
+		IconsOnEdge[k] = nil;
+		k:Hide();
+	end
+end
+
+local lastZoom; -- to remember the last seen Minimap zoom level
+
+-- local variables to track the status of the two update coroutines
+local fullUpdateInProgress = true
+local resetIncrementalUpdate = false
+local resetFullUpdate = false
+
+-- Incremental Update Code
+do
+	-- local variables to track the incremental update coroutine
+	local incrementalUpdateCrashed = true
+	local incrementalUpdateThread
+
+	local function UpdateMinimapIconPositions( self )
+		yield()
+
+		while ( true ) do
+			self:DumpNewIconsCache() -- put new/updated icons into the main datacache
+
+			resetIncrementalUpdate = false -- by definition, the incremental update is reset if it is here
+
+			local C, Z, x, y = self:GetCurrentPlayerPosition();
+			if ( C and C >= 0 ) then
+				local Minimap = Minimap;
+				local lastPosition = self.LastPlayerPosition;
+				local lC, lZ, lx, ly = unpack(lastPosition);
+
+				minimapRotationEnabled = GetCVar("rotateMinimap") ~= "0"
+
+				-- check current frame rate
+				local numPerCycle = min(50, GetFramerate() * (self.MinimapUpdateMultiplier or 1))
+
+				-- check Minimap Shape
+				minimapShape = GetMinimapShape and ValidMinimapShapes[GetMinimapShape()];
+
+				if ( lC == C and lZ == Z and lx == x and ly == y ) then
+					-- player has not moved since the last update
+					if ( lastZoom ~= Minimap:GetZoom() or self.ForceNextUpdate or minimapRotationEnabled ) then
+						local currentZoom = Minimap:GetZoom();
+						lastZoom = currentZoom;
+						local mapWidth = Minimap:GetWidth();
+						local mapHeight = Minimap:GetHeight();
+						numPerCycle = numPerCycle * 2
+						local count = 0
+						for icon, data in pairs(self.MinimapIcons) do
+							placeIconOnMinimap(Minimap, currentZoom, mapWidth, mapHeight, icon, data.dist, data.xDist, data.yDist);
+
+							count = count + 1
+							if ( count > numPerCycle ) then
+								count = 0
+								yield()
+								-- check if the incremental update cycle needs to be reset
+								-- because a full update has been run
+								if ( resetIncrementalUpdate ) then
+									break;
+								end
+							end
+						end
+						self.ForceNextUpdate = false;
+					end
+				else
+					local dist, xDelta, yDelta = self:ComputeDistance(lC, lZ, lx, ly, C, Z, x, y);
+					if ( dist ) then
+						local currentZoom = Minimap:GetZoom();
+						lastZoom = currentZoom;
+						local mapWidth = Minimap:GetWidth();
+						local mapHeight = Minimap:GetHeight();
+						local count = 0
+						for icon, data in pairs(self.MinimapIcons) do
+							local xDist = data.xDist - xDelta;
+							local yDist = data.yDist - yDelta;
+							local dist = sqrt(xDist*xDist + yDist*yDist);
+							placeIconOnMinimap(Minimap, currentZoom, mapWidth, mapHeight, icon, dist, xDist, yDist);
+
+							data.dist = dist;
+							data.xDist = xDist;
+							data.yDist = yDist;
+
+							count = count + 1
+							if ( count >= numPerCycle ) then
+								count = 0
+								yield()
+								-- check if the incremental update cycle needs to be reset
+								-- because a full update has been run
+								if ( resetIncrementalUpdate ) then
+									break;
+								end
+							end
+						end
+						if not ( resetIncrementalUpdate ) then
+							lastPosition[1] = C;
+							lastPosition[2] = Z;
+							lastPosition[3] = x;
+							lastPosition[4] = y;
+						end
+					else
+						self:RemoveAllMinimapIcons()
+						lastPosition[1] = C;
+						lastPosition[2] = Z;
+						lastPosition[3] = x;
+						lastPosition[4] = y;
+					end
+				end
+			else
+				if not ( self.WorldMapVisible ) then
+					self.processingFrame:Hide();
+				end
+			end
+
+			-- if we've been reset, then we want to start the new cycle immediately
+			if not ( resetIncrementalUpdate ) then
+				yield()
+			end
+		end
+	end
+
+	function Astrolabe:UpdateMinimapIconPositions()
+		if ( fullUpdateInProgress ) then
+			-- if we're in the middle a a full update, we want to finish that first
+			self:CalculateMinimapIconPositions()
+		else
+			if ( incrementalUpdateCrashed ) then
+				incrementalUpdateThread = coroutine.wrap(UpdateMinimapIconPositions)
+				incrementalUpdateThread(self) --initialize the thread
+			end
+			incrementalUpdateCrashed = true
+			incrementalUpdateThread()
+			incrementalUpdateCrashed = false
+		end
+	end
+end
+
+-- Full Update Code
+do
+	-- local variables to track the full update coroutine
+	local fullUpdateCrashed = true
+	local fullUpdateThread
+
+	local function CalculateMinimapIconPositions( self )
+		yield()
+
+		while ( true ) do
+			self:DumpNewIconsCache() -- put new/updated icons into the main datacache
+
+			resetFullUpdate = false -- by definition, the full update is reset if it is here
+			fullUpdateInProgress = true -- set the flag the says a full update is in progress
+
+			local C, Z, x, y = self:GetCurrentPlayerPosition();
+			if ( C and C >= 0 ) then
+				minimapRotationEnabled = GetCVar("rotateMinimap") ~= "0"
+
+				-- check current frame rate
+				local numPerCycle = GetFramerate() * (self.MinimapUpdateMultiplier or 1) * 2
+
+				-- check Minimap Shape
+				minimapShape = GetMinimapShape and ValidMinimapShapes[GetMinimapShape()];
+
+				local currentZoom = Minimap:GetZoom();
+				lastZoom = currentZoom;
+				local Minimap = Minimap;
+				local mapWidth = Minimap:GetWidth();
+				local mapHeight = Minimap:GetHeight();
+				local count = 0
+				for icon, data in pairs(self.MinimapIcons) do
+					local dist, xDist, yDist = self:ComputeDistance(C, Z, x, y, data.continent, data.zone, data.xPos, data.yPos);
+					if ( dist ) then
+						placeIconOnMinimap(Minimap, currentZoom, mapWidth, mapHeight, icon, dist, xDist, yDist);
+
+						data.dist = dist;
+						data.xDist = xDist;
+						data.yDist = yDist;
+					else
+						self:RemoveIconFromMinimap(icon)
+					end
+
+					count = count + 1
+					if ( count >= numPerCycle ) then
+						count = 0
+						yield()
+						-- check if we need to restart due to the full update being reset
+						if ( resetFullUpdate ) then
+							break;
+						end
+					end
+				end
+
+				if not ( resetFullUpdate ) then
+					local lastPosition = self.LastPlayerPosition;
+					lastPosition[1] = C;
+					lastPosition[2] = Z;
+					lastPosition[3] = x;
+					lastPosition[4] = y;
+
+					resetIncrementalUpdate = true
+				end
+			else
+				if not ( self.WorldMapVisible ) then
+					self.processingFrame:Hide();
+				end
+			end
+
+			-- if we've been reset, then we want to start the new cycle immediately
+			if not ( resetFullUpdate ) then
+				fullUpdateInProgress = false
+				yield()
+			end
+		end
+	end
+
+	function Astrolabe:CalculateMinimapIconPositions( reset )
+		if ( fullUpdateCrashed ) then
+			fullUpdateThread = coroutine.wrap(CalculateMinimapIconPositions)
+			fullUpdateThread(self) --initialize the thread
+		elseif ( reset ) then
+			resetFullUpdate = true
+		end
+		fullUpdateCrashed = true
+		fullUpdateThread()
+		fullUpdateCrashed = false
+
+		-- return result flag
+		if ( fullUpdateInProgress ) then
+			return 1 -- full update started, but did not complete on this cycle
+
+		else
+			if ( resetIncrementalUpdate ) then
+				return 0 -- update completed
+			else
+				return -1 -- full update did no occur for some reason
+			end
+
+		end
+	end
+end
+
+function Astrolabe:GetDistanceToIcon( icon )
+	local data = self.MinimapIcons[icon];
+	if ( data ) then
+		return data.dist, data.xDist, data.yDist;
+	end
+end
+
+function Astrolabe:IsIconOnEdge( icon )
+	return self.IconsOnEdge[icon];
+end
+
+function Astrolabe:GetDirectionToIcon( icon )
+	local data = self.MinimapIcons[icon];
+	if ( data ) then
+		local dir = atan2(data.xDist, -(data.yDist))
+		if ( dir > 0 ) then
+			return twoPi - dir;
+		else
+			return -dir;
+		end
+	end
+end
+
+function Astrolabe:Register_OnEdgeChanged_Callback( func, ident )
+	-- check argument types
+	argcheck(func, 2, "function");
+
+	self.IconsOnEdge_GroupChangeCallbacks[func] = ident;
+end
+
+--*****************************************************************************
+-- INTERNAL USE ONLY PLEASE!!!
+-- Calling this function at the wrong time can cause errors
+--*****************************************************************************
+function Astrolabe:DumpNewIconsCache()
+	local MinimapIcons = self.MinimapIcons
+	for icon, data in pairs(AddedOrUpdatedIcons) do
+		MinimapIcons[icon] = data
+		AddedOrUpdatedIcons[icon] = nil
+	end
+	-- we now need to restart any updates that were in progress
+	resetIncrementalUpdate = true
+	resetFullUpdate = true
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- World Map Icon Placement
+--------------------------------------------------------------------------------------------------------------
+
+function Astrolabe:PlaceIconOnWorldMap( worldMapFrame, icon, continent, zone, xPos, yPos )
+	-- check argument types
+	argcheck(worldMapFrame, 2, "table");
+	assert(3, worldMapFrame.GetWidth and worldMapFrame.GetHeight, "Usage Message");
+	argcheck(icon, 3, "table");
+	assert(3, icon.SetPoint and icon.ClearAllPoints, "Usage Message");
+	argcheck(continent, 4, "number");
+	argcheck(zone, 5, "number", "nil");
+	argcheck(xPos, 6, "number");
+	argcheck(yPos, 7, "number");
+
+	local C, Z = GetCurrentMapContinent(), GetCurrentMapZone();
+	local nX, nY = self:TranslateWorldMapPosition(continent, zone, xPos, yPos, C, Z);
+
+	-- anchor and :Show() the icon if it is within the boundry of the current map, :Hide() it otherwise
+	if ( nX and nY and (0 < nX and nX <= 1) and (0 < nY and nY <= 1) ) then
+		icon:ClearAllPoints();
+		icon:SetPoint("CENTER", worldMapFrame, "TOPLEFT", nX * worldMapFrame:GetWidth(), -nY * worldMapFrame:GetHeight());
+		icon:Show();
+	else
+		icon:Hide();
+	end
+	return nX, nY;
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Handler Scripts
+--------------------------------------------------------------------------------------------------------------
+
+function Astrolabe:OnEvent( frame, event )
+	if ( event == "MINIMAP_UPDATE_ZOOM" ) then
+		-- update minimap zoom scale
+		local Minimap = Minimap;
+		local curZoom = Minimap:GetZoom();
+		if ( GetCVar("minimapZoom") == GetCVar("minimapInsideZoom") ) then
+			if ( curZoom < 2 ) then
+				Minimap:SetZoom(curZoom + 1);
+			else
+				Minimap:SetZoom(curZoom - 1);
+			end
+		end
+		if ( GetCVar("minimapZoom")+0 == Minimap:GetZoom() ) then
+			self.minimapOutside = true;
+		else
+			self.minimapOutside = false;
+		end
+		Minimap:SetZoom(curZoom);
+
+		-- re-calculate all Minimap Icon positions
+		if ( frame:IsVisible() ) then
+			self:CalculateMinimapIconPositions(true);
+		end
+
+	elseif ( event == "PLAYER_LEAVING_WORLD" ) then
+		frame:Hide();
+		self:RemoveAllMinimapIcons(); --dump all minimap icons
+
+	elseif ( event == "PLAYER_ENTERING_WORLD" ) then
+		frame:Show();
+		if not ( frame:IsVisible() ) then
+			-- do the minimap recalculation anyways if the OnShow script didn't execute
+			-- this is done to ensure the accuracy of information about icons that were
+			-- inserted while the Player was in the process of zoning
+			self:CalculateMinimapIconPositions(true);
+		end
+
+	elseif ( event == "ZONE_CHANGED_NEW_AREA" ) then
+		frame:Hide();
+		frame:Show();
+
+	end
+end
+
+function Astrolabe:OnUpdate( frame, elapsed )
+	-- on-edge group changed call-backs
+	if ( self.IconsOnEdgeChanged ) then
+		self.IconsOnEdgeChanged = false;
+		for func in pairs(self.IconsOnEdge_GroupChangeCallbacks) do
+			pcall(func);
+		end
+	end
+
+	self:UpdateMinimapIconPositions();
+end
+
+function Astrolabe:OnShow( frame )
+	-- set the world map to a zoom with a valid player position
+	if not ( self.WorldMapVisible ) then
+		SetMapToCurrentZone();
+	end
+	local C, Z = Astrolabe:GetCurrentPlayerPosition();
+	if ( C and C >= 0 ) then
+		SetMapZoom(C, Z);
+	else
+		frame:Hide();
+		return
+	end
+
+	-- re-calculate minimap icon positions
+	self:CalculateMinimapIconPositions(true);
+end
+
+-- called by AstrolabMapMonitor when all world maps are hidden
+function Astrolabe:AllWorldMapsHidden()
+	if ( IsLoggedIn() ) then
+		self.processingFrame:Hide();
+		self.processingFrame:Show();
+	end
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Library Registration
+--------------------------------------------------------------------------------------------------------------
+
+local function activate( newInstance, oldInstance )
+	if ( oldInstance ) then -- this is an upgrade activate
+		if ( oldInstance.DumpNewIconsCache ) then
+			oldInstance:DumpNewIconsCache()
+		end
+		for k, v in pairs(oldInstance) do
+			if ( type(v) ~= "function" and (not configConstants[k]) ) then
+				newInstance[k] = v;
+			end
+		end
+		Astrolabe = oldInstance;
+	else
+		local frame = CreateFrame("Frame");
+		newInstance.processingFrame = frame;
+
+		newInstance.ContinentList = { GetMapContinents() };
+		for C in pairs(newInstance.ContinentList) do
+			local zones = { GetMapZones(C) };
+			newInstance.ContinentList[C] = zones;
+			for Z in ipairs(zones) do
+				SetMapZoom(C, Z);
+				zones[Z] = GetMapInfo();
+			end
+		end
+	end
+	configConstants = nil -- we don't need this anymore
+
+	local frame = newInstance.processingFrame;
+	frame:Hide();
+	frame:SetParent("Minimap");
+	frame:UnregisterAllEvents();
+	frame:RegisterEvent("MINIMAP_UPDATE_ZOOM");
+	frame:RegisterEvent("PLAYER_LEAVING_WORLD");
+	frame:RegisterEvent("PLAYER_ENTERING_WORLD");
+	frame:RegisterEvent("ZONE_CHANGED_NEW_AREA");
+	frame:SetScript("OnEvent",
+		function( frame, event, ... )
+			Astrolabe:OnEvent(frame, event, ...);
+		end
+	);
+	frame:SetScript("OnUpdate",
+		function( frame, elapsed )
+			Astrolabe:OnUpdate(frame, elapsed);
+		end
+	);
+	frame:SetScript("OnShow",
+		function( frame )
+			Astrolabe:OnShow(frame);
+		end
+	);
+
+	setmetatable(Astrolabe.MinimapIcons, MinimapIconsMetatable)
+end
+
+DongleStub:Register(Astrolabe, activate)
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Data
+--------------------------------------------------------------------------------------------------------------
+
+-- diameter of the Minimap in game yards at
+-- the various possible zoom levels
+MinimapSize = {
+	indoor = {
+		[0] = 300, -- scale
+		[1] = 240, -- 1.25
+		[2] = 180, -- 5/3
+		[3] = 120, -- 2.5
+		[4] = 80,  -- 3.75
+		[5] = 50,  -- 6
+	},
+	outdoor = {
+		[0] = 466 + 2/3, -- scale
+		[1] = 400,       -- 7/6
+		[2] = 333 + 1/3, -- 1.4
+		[3] = 266 + 2/6, -- 1.75
+		[4] = 200,       -- 7/3
+		[5] = 133 + 1/3, -- 3.5
+	},
+}
+
+ValidMinimapShapes = {
+	-- { upper-left, lower-left, upper-right, lower-right }
+	["SQUARE"]                = { false, false, false, false },
+	["CORNER-TOPLEFT"]        = { true,  false, false, false },
+	["CORNER-TOPRIGHT"]       = { false, false, true,  false },
+	["CORNER-BOTTOMLEFT"]     = { false, true,  false, false },
+	["CORNER-BOTTOMRIGHT"]    = { false, false, false, true },
+	["SIDE-LEFT"]             = { true,  true,  false, false },
+	["SIDE-RIGHT"]            = { false, false, true,  true },
+	["SIDE-TOP"]              = { true,  false, true,  false },
+	["SIDE-BOTTOM"]           = { false, true,  false, true },
+	["TRICORNER-TOPLEFT"]     = { true,  true,  true,  false },
+	["TRICORNER-TOPRIGHT"]    = { true,  false, true,  true },
+	["TRICORNER-BOTTOMLEFT"]  = { true,  true,  false, true },
+	["TRICORNER-BOTTOMRIGHT"] = { false, true,  true,  true },
+}
+
+-- distances across and offsets of the world maps
+-- in game yards
+WorldMapSize = {
+	-- World Map of Azeroth
+	[0] = {
+		parentContinent = 0,
+		height = 29688.932932224,
+		width = 44537.340058402,
+	},
+	-- Kalimdor
+	{ -- [1]
+		parentContinent = 0,
+		height = 24533.025279205,
+		width = 36800.210572494,
+		xOffset = -8311.793923510446,
+		yOffset = 1815.215685280706,
+		zoneData = {
+			Ashenvale = {
+				height = 3843.722811451077,
+				width = 5766.728884700476,
+				xOffset = 15366.76755576002,
+				yOffset = 8126.925260781192,
+			},
+			Aszhara = {
+				height = 3381.225696279877,
+				width = 5070.888165752819,
+				xOffset = 20343.90485013144,
+				yOffset = 7458.180046130774,
+			},
+			AzuremystIsle = {
+				height = 2714.561862167815,
+				width = 4070.883253576282,
+				xOffset = 9966.70736478994,
+				yOffset = 5460.278138661794,
+			},
+			Barrens = {
+				height = 6756.202067150937,
+				width = 10133.44343943073,
+				xOffset = 14443.84117394525,
+				yOffset = 11187.32013604393,
+			},
+			BloodmystIsle = {
+				height = 2174.984710698752,
+				width = 3262.517428121028,
+				xOffset = 9541.713418184554,
+				yOffset = 3424.874558234072,
+			},
+			Darkshore = {
+				height = 4366.636219106706,
+				width = 6550.06962983463,
+				xOffset = 14125.08809600818,
+				yOffset = 4466.534412478246,
+			},
+			Darnassis = {
+				height = 705.7248633938184,
+				width = 1058.342927027606,
+				xOffset = 14128.39258617903,
+				yOffset = 2561.565012455802,
+			},
+			Desolace = {
+				height = 2997.895174253872,
+				width = 4495.882023201739,
+				xOffset = 12833.40729836031,
+				yOffset = 12347.72848626745,
+			},
+			Durotar = {
+				height = 3524.975114832228,
+				width = 5287.558038649864,
+				xOffset = 19029.30699887344,
+				yOffset = 10991.48801260963,
+			},
+			Dustwallow = {
+				height = 3499.975146240067,
+				width = 5250.057259791282,
+				xOffset = 18041.79657043901,
+				yOffset = 14833.12751666842,
+			},
+			Felwood = {
+				height = 3833.305958270781,
+				width = 5750.062034325837,
+				xOffset = 15425.10163773161,
+				yOffset = 5666.526367166872,
+			},
+			Feralas = {
+				height = 4633.30011661694,
+				width = 6950.075260353015,
+				xOffset = 11625.06045254075,
+				yOffset = 15166.45834829251,
+			},
+			Moonglade = {
+				height = 1539.572509508711,
+				width = 2308.356845256911,
+				xOffset = 18448.05172159372,
+				yOffset = 4308.20254319874,
+			},
+			Mulgore = {
+				height = 3424.975945100366,
+				width = 5137.555355060729,
+				xOffset = 15018.84750987729,
+				yOffset = 13072.72336630089,
+			},
+			Ogrimmar = {
+				height = 935.4100697456119,
+				width = 1402.621211455915,
+				xOffset = 20747.42666130799,
+				yOffset = 10525.94769396873,
+			},
+			Silithus = {
+				height = 2322.899061688691,
+				width = 3483.371975265956,
+				xOffset = 14529.25864164056,
+				yOffset = 18758.10068625832,
+			},
+			StonetalonMountains = {
+				height = 3256.226691571251,
+				width = 4883.385977951072,
+				xOffset = 13820.91773479217,
+				yOffset = 9883.162892509636,
+			},
+			Tanaris = {
+				height = 4599.965662459992,
+				width = 6900.073766103516,
+				xOffset = 17285.539010128,
+				yOffset = 18674.7673661939,
+			},
+			Teldrassil = {
+				height = 3393.726923234355,
+				width = 5091.720903621394,
+				xOffset = 13252.16205313556,
+				yOffset = 968.6418744503761,
+			},
+			TheExodar = {
+				height = 704.6826864472878,
+				width = 1056.781131437323,
+				xOffset = 10533.08314172693,
+				yOffset = 6276.205331713322,
+			},
+			ThousandNeedles = {
+				height = 2933.312180524323,
+				width = 4400.046681282484,
+				xOffset = 17500.12437633161,
+				yOffset = 16766.44698282704,
+			},
+			ThunderBluff = {
+				height = 695.8282721105132,
+				width = 1043.761263579803,
+				xOffset = 16550.11410485969,
+				yOffset = 13649.80260929285,
+			},
+			UngoroCrater = {
+				height = 2466.647220780505,
+				width = 3700.040077455555,
+				xOffset = 16533.44712326324,
+				yOffset = 18766.4334494793,
+			},
+			Winterspring = {
+				height = 4733.299561046713,
+				width = 7100.077599808275,
+				xOffset = 17383.45606038691,
+				yOffset = 4266.536453420381,
+			},
+		},
+	},
+	-- Eastern Kingdoms
+	{ -- [2]
+		parentContinent = 0,
+		height = 27149.795290881,
+		width = 40741.175327834,
+		xOffset = 14407.1086092051,
+		yOffset = 290.3230897653046,
+		zoneData = {
+			Alterac = {
+				height = 1866.673586850316,
+				width = 2800.000436369314,
+				xOffset = 17388.63313899802,
+				yOffset = 9676.382605411302,
+			},
+			Arathi = {
+				height = 2400.0092446309,
+				width = 3599.999380663208,
+				xOffset = 19038.63328411639,
+				yOffset = 11309.72201070757,
+			},
+			Badlands = {
+				height = 1658.340965090961,
+				width = 2487.498490907989,
+				xOffset = 20251.1337564772,
+				yOffset = 17065.99404487956,
+			},
+			BlastedLands = {
+				height = 2233.343415116865,
+				width = 3349.999381676505,
+				xOffset = 19413.63362865575,
+				yOffset = 21743.09582955139,
+			},
+			BurningSteppes = {
+				height = 1952.091972408385,
+				width = 2929.16694293186,
+				xOffset = 18438.633261567,
+				yOffset = 18207.66513379744,
+			},
+			DeadwindPass = {
+				height = 1666.673818905317,
+				width = 2499.999888210889,
+				xOffset = 19005.29993968603,
+				yOffset = 21043.0932328648,
+			},
+			DunMorogh = {
+				height = 3283.345779814337,
+				width = 4924.998791911572,
+				xOffset = 16369.8840376619,
+				yOffset = 15053.48695195484,
+			},
+			Duskwood = {
+				height = 1800.007653419076,
+				width = 2699.999669551933,
+				xOffset = 17338.63354148773,
+				yOffset = 20893.09259181909,
+			},
+			EasternPlaguelands = {
+				height = 2581.259876367526,
+				width = 3870.832396995169,
+				xOffset = 20357.38356562001,
+				yOffset = 7376.373692430854,
+			},
+			Elwynn = {
+				height = 2314.591970284716,
+				width = 3470.831971412848,
+				xOffset = 16636.55099386465,
+				yOffset = 19116.0027890283,
+			},
+			EversongWoods = {
+				height = 3283.346366715794,
+				width = 4924.998483501337,
+				xOffset = 20259.46725884782,
+				yOffset = 2534.687567863296,
+			},
+			Ghostlands = {
+				height = 2200.008945183733,
+				width = 3300.002855743766,
+				xOffset = 21055.29786070095,
+				yOffset = 5309.698546426793,
+			},
+			Hilsbrad = {
+				height = 2133.341840477916,
+				width = 3200.000391416799,
+				xOffset = 17105.29968281043,
+				yOffset = 10776.38652289269,
+			},
+			Hinterlands = {
+				height = 2566.676323518885,
+				width = 3849.998492380244,
+				xOffset = 19746.96704279287,
+				yOffset = 9709.715966757984,
+			},
+			Ironforge = {
+				height = 527.6056771582851,
+				width = 790.6252518322632,
+				xOffset = 18885.55815177769,
+				yOffset = 15745.64795436116,
+			},
+			LochModan = {
+				height = 1839.590356444166,
+				width = 2758.33360594204,
+				xOffset = 20165.71623436714,
+				yOffset = 15663.90573348468,
+			},
+			Redridge = {
+				height = 1447.922213393415,
+				width = 2170.833229570681,
+				xOffset = 19742.79960560691,
+				yOffset = 19751.42209395218,
+			},
+			SearingGorge = {
+				height = 1487.505203229038,
+				width = 2231.250200533406,
+				xOffset = 18494.88325409831,
+				yOffset = 17276.41231120941,
+			},
+			SilvermoonCity = {
+				height = 806.7751969249011,
+				width = 1211.458551923779,
+				xOffset = 22172.71573747824,
+				yOffset = 3422.647395021269,
+			},
+			Silverpine = {
+				height = 2800.011187621704,
+				width = 4200.000573479695,
+				xOffset = 14721.96646274185,
+				yOffset = 9509.714741967448,
+			},
+			Stormwind = {
+				height = 896.3598437319051,
+				width = 1344.270269919159,
+				xOffset = 16790.9956264139,
+				yOffset = 19455.27053790398,
+			},
+			Stranglethorn = {
+				height = 4254.18312444072,
+				width = 6381.248484543122,
+				xOffset = 15951.13375783437,
+				yOffset = 22345.18258706305,
+			},
+			Sunwell = {
+				height = 2218.756638064149,
+				width = 3327.084777999942,
+				xOffset = 21074.0484502027,
+				yOffset = 7.595267688679496,
+			},
+			SwampOfSorrows = {
+				height = 1529.173695058727,
+				width = 2293.753807610138,
+				xOffset = 20394.88183258176,
+				yOffset = 20797.25913588854,
+			},
+			Tirisfal = {
+				height = 3012.510490816506,
+				width = 4518.749381850256,
+				xOffset = 15138.63417865412,
+				yOffset = 7338.874503644808,
+			},
+			Undercity = {
+				height = 640.1067253394195,
+				width = 959.3752013853186,
+				xOffset = 17298.77399735696,
+				yOffset = 9298.435338905521,
+			},
+			WesternPlaguelands = {
+				height = 2866.677213191588,
+				width = 4299.998717025251,
+				xOffset = 17755.30067544475,
+				yOffset = 7809.708745090687,
+			},
+			Westfall = {
+				height = 2333.342039971409,
+				width = 3500.001170481545,
+				xOffset = 15155.29922254704,
+				yOffset = 20576.42557120998,
+			},
+			Wetlands = {
+				height = 2756.260286844545,
+				width = 4135.414389381328,
+				xOffset = 18561.55091405621,
+				yOffset = 13324.31339403164,
+			},
+		},
+	},
+	-- Outland
+	{ -- [3]
+		parentContinent = 3,
+		height = 11642.355227091,
+		width = 17463.987300595,
+		zoneData = {
+			BladesEdgeMountains = {
+				height = 3616.553511321226,
+				width = 5424.972055480694,
+				xOffset = 4150.184214583454,
+				yOffset = 1412.98225932006,
+			},
+			Hellfire = {
+				height = 3443.642450656037,
+				width = 5164.556104714847,
+				xOffset = 7456.417230912641,
+				yOffset = 4339.973750274888,
+			},
+			Nagrand = {
+				height = 3683.218538167106,
+				width = 5524.971495006054,
+				xOffset = 2700.192018521809,
+				yOffset = 5779.511974812862,
+			},
+			Netherstorm = {
+				height = 3716.550608724641,
+				width = 5574.970083688359,
+				xOffset = 7512.667416095402,
+				yOffset = 365.0979827402549,
+			},
+			ShadowmoonValley = {
+				height = 3666.552070430093,
+				width = 5499.971770418525,
+				xOffset = 8770.993458280615,
+				yOffset = 7769.033264592288,
+			},
+			ShattrathCity = {
+				height = 870.8059516186869,
+				width = 1306.242821388422,
+				xOffset = 6860.744740098593,
+				yOffset = 7295.086120456203,
+			},
+			TerokkarForest = {
+				height = 3599.887783533737,
+				width = 5399.971351016305,
+				xOffset = 5912.675516998205,
+				yOffset = 6821.146319031154,
+			},
+			Zangarmarsh = {
+				height = 3351.978710181591,
+				width = 5027.057650868489,
+				xOffset = 3521.020638264577,
+				yOffset = 3885.821278366336,
+			},
+		},
+	},
+}
+
+local zeroData;
+zeroData = { xOffset = 0, height = 0, yOffset = 0, width = 0, __index = function() return zeroData end };
+setmetatable(zeroData, zeroData);
+setmetatable(WorldMapSize, zeroData);
+
+for continent, zones in pairs(Astrolabe.ContinentList) do
+	local mapData = WorldMapSize[continent];
+	for index, mapName in pairs(zones) do
+		if not ( mapData.zoneData[mapName] ) then
+			--WE HAVE A PROBLEM!!!
+			ChatFrame1:AddMessage("Astrolabe is missing data for "..select(index, GetMapZones(continent))..".");
+			mapData.zoneData[mapName] = zeroData;
+		end
+		mapData[index] = mapData.zoneData[mapName];
+		mapData.zoneData[mapName] = nil;
+	end
+end
+
+
+-- register this library with AstrolabeMapMonitor, this will cause a full update if PLAYER_LOGIN has already fired
+local AstrolabeMapMonitor = DongleStub("AstrolabeMapMonitor");
+AstrolabeMapMonitor:RegisterAstrolabeLibrary(Astrolabe, LIBRARY_VERSION_MAJOR);
diff --git a/libs/Astrolabe/AstrolabeMapMonitor.lua b/libs/Astrolabe/AstrolabeMapMonitor.lua
new file mode 100644
index 0000000..58b83cc
--- /dev/null
+++ b/libs/Astrolabe/AstrolabeMapMonitor.lua
@@ -0,0 +1,235 @@
+--[[
+Name: AstrolabeMapMonitor
+Revision: $Rev: 44 $
+$Date: 2007-03-30 19:56:21 +0100 (Fri, 30 Mar 2007) $
+Author(s): Esamynn (esamynn@wowinterface.com)
+Inspired By: Gatherer by Norganna
+             MapLibrary by Kristofer Karlsson (krka@kth.se)
+Website: http://esamynn.wowinterface.com/
+Documentation: http://www.esamynn.org/wiki/Astrolabe/World_Map_Monitor
+SVN: http://esamynn.org/svn/astrolabe/
+Description:
+	This is a small stub library to support the main Astrolabe
+	library.  It's purpose is to monitor the visibility of
+	various World Map frames, so that Astrolabe can modify its
+	behaviour accordingly.
+
+Copyright (C) 2007 James Carrothers
+
+License:
+	This library is free software; you can redistribute it and/or
+	modify it under the terms of the GNU Lesser General Public
+	License as published by the Free Software Foundation; either
+	version 2.1 of the License, or (at your option) any later version.
+
+	This library is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+	Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public
+	License along with this library; if not, write to the Free Software
+	Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+Note:
+	This library's source code is specifically designed to work with
+	World of Warcraft's interpreted AddOn system.  You have an implicit
+	licence to use this library with these facilities since that is its
+	designated purpose as per:
+	http://www.fsf.org/licensing/licenses/gpl-faq.html#InterpreterIncompat
+]]
+
+-- WARNING!!!
+-- DO NOT MAKE CHANGES TO THIS LIBRARY WITHOUT FIRST CHANGING THE LIBRARY_VERSION_MAJOR
+-- STRING (to something unique) OR ELSE YOU MAY BREAK OTHER ADDONS THAT USE THIS LIBRARY!!!
+local LIBRARY_VERSION_MAJOR = "AstrolabeMapMonitor"
+local LIBRARY_VERSION_MINOR = tonumber(string.match("$Revision: 44 $", "(%d+)") or 1)
+
+if not DongleStub then error(LIBRARY_VERSION_MAJOR .. " requires DongleStub.") end
+if not DongleStub:IsNewerVersion(LIBRARY_VERSION_MAJOR, LIBRARY_VERSION_MINOR) then return end
+
+local AstrolabeMapMonitor = {};
+
+function AstrolabeMapMonitor:GetVersion()
+	return LIBRARY_VERSION_MAJOR, LIBRARY_VERSION_MINOR;
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Global World Map Frame Registration Table
+--------------------------------------------------------------------------------------------------------------
+
+if ( type(WorldMapDisplayFrames) ~= "table" ) then
+	WorldMapDisplayFrames = { WorldMapFrame };
+else
+	local worldMapFound = false;
+	for k, v in pairs(WorldMapDisplayFrames) do
+		if ( v == WorldMapFrame ) then
+			worldMapFound = true;
+			break;
+		end
+	end
+	if not ( worldMapFound ) then
+		table.insert(WorldMapDisplayFrames, WorldMapFrame);
+	end
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Working Tables and Config Constants
+--------------------------------------------------------------------------------------------------------------
+
+AstrolabeMapMonitor.TrackedWorldMaps = {};
+AstrolabeMapMonitor.AstrolabeLibrarys = {};
+
+AstrolabeMapMonitor.NumVisibleWorldMaps = 0;
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Monitor Frame Script Handlers
+--------------------------------------------------------------------------------------------------------------
+
+local function onShow( frame )
+	AstrolabeMapMonitor.NumVisibleWorldMaps = AstrolabeMapMonitor.NumVisibleWorldMaps + 1;
+	AstrolabeMapMonitor:Update()
+end
+
+local function onHide( frame )
+	AstrolabeMapMonitor.NumVisibleWorldMaps = AstrolabeMapMonitor.NumVisibleWorldMaps - 1;
+	AstrolabeMapMonitor:Update()
+end
+
+local function setScripts( monitorFrame )
+	monitorFrame:SetScript("OnShow", onShow);
+	monitorFrame:SetScript("OnHide", onHide);
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Internal Utility Functions
+--------------------------------------------------------------------------------------------------------------
+
+local function assert(level,condition,message)
+	if not condition then
+		error(message,level)
+	end
+end
+
+local function argcheck(value, num, ...)
+	assert(1, type(num) == "number",
+		"Bad argument #2 to 'argcheck' (number expected, got " .. type(level) .. ")")
+
+	for i=1,select("#", ...) do
+		if type(value) == select(i, ...) then return end
+	end
+
+	local types = strjoin(", ", ...)
+	local name = string.match(debugstack(2,2,0), ": in function [`<](.-)['>]")
+	error(string.format("Bad argument #%d to 'AstrolabeMapMonitor.%s' (%s expected, got %s)", num, name, types, type(value)), 3)
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Public API
+--------------------------------------------------------------------------------------------------------------
+
+function AstrolabeMapMonitor:MonitorWorldMap( worldMapFrame )
+	-- check argument types
+	argcheck(worldMapFrame, 2, "table");
+	assert((worldMapFrame.SetParent), "Usage Message");
+
+	local TrackedWorldMaps = self.TrackedWorldMaps;
+	if ( TrackedWorldMaps[worldMapFrame] ) then
+		return 1;
+	end
+	local monitorFrame = CreateFrame("Frame", nil, worldMapFrame);
+	TrackedWorldMaps[worldMapFrame] = monitorFrame;
+	setScripts(monitorFrame);
+	self:ForceUpdate();
+	return 0;
+end
+
+function AstrolabeMapMonitor:LookForMapsToRegister()
+	for k, frame in pairs(WorldMapDisplayFrames) do
+		if ( type(frame) == "table" and frame.SetParent ) then
+			self:MonitorWorldMap(frame);
+		end
+	end
+end
+
+function AstrolabeMapMonitor:Update()
+	local visibleMap = false;
+	if ( (self.NumVisibleWorldMaps) > 0 ) then
+		visibleMap = true;
+	end
+	for lib, versionString in pairs(self.AstrolabeLibrarys) do
+		lib.WorldMapVisible = visibleMap;
+		if ( (not visibleMap) and lib.AllWorldMapsHidden ) then
+			lib:AllWorldMapsHidden();
+		end
+	end
+	return visibleMap;
+end
+
+function AstrolabeMapMonitor:ForceUpdate()
+	self.NumVisibleWorldMaps = 0;
+	for worldMap, monitorFrame in pairs(self.TrackedWorldMaps) do
+		if ( worldMap:IsVisible() ) then
+			self.NumVisibleWorldMaps = self.NumVisibleWorldMaps + 1;
+		end
+	end
+	return self:Update();
+end
+
+function AstrolabeMapMonitor:RegisterAstrolabeLibrary( lib, majorVersionString )
+	-- check argument types
+	argcheck(lib, 2, "table");
+	argcheck(majorVersionString, 3, "string");
+
+	self.AstrolabeLibrarys[lib] = majorVersionString;
+	self:Update();
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Handler Scripts
+--------------------------------------------------------------------------------------------------------------
+
+function AstrolabeMapMonitor:OnEvent( frame, event )
+	if ( event == "ADDON_LOADED" ) then
+		self:LookForMapsToRegister();
+		self:ForceUpdate();
+	end
+end
+
+
+--------------------------------------------------------------------------------------------------------------
+-- Library Registration
+--------------------------------------------------------------------------------------------------------------
+
+local function activate( newInstance, oldInstance )
+	if ( oldInstance ) then -- this is an upgrade activate
+		for k, v in pairs(oldInstance) do
+			if ( type(v) ~= "function" ) then
+				newInstance[k] = v;
+			end
+		end
+		AstrolabeMapMonitor = oldInstance;
+	else
+		AstrolabeMapMonitor.eventFrame = CreateFrame("Frame");
+	end
+	for worldMap, monitorFrame in pairs(AstrolabeMapMonitor.TrackedWorldMaps) do
+		setScripts(monitorFrame);
+	end
+	local frame = AstrolabeMapMonitor.eventFrame;
+	frame:Hide();
+	frame:UnregisterAllEvents();
+	frame:RegisterEvent("ADDON_LOADED");
+	frame:SetScript("OnEvent",
+		function( frame, event, ... )
+			AstrolabeMapMonitor:OnEvent(frame, event, ...);
+		end
+	);
+end
+
+DongleStub:Register(AstrolabeMapMonitor, activate)
diff --git a/libs/Astrolabe/DongleStub.lua b/libs/Astrolabe/DongleStub.lua
new file mode 100644
index 0000000..b5211a9
--- /dev/null
+++ b/libs/Astrolabe/DongleStub.lua
@@ -0,0 +1,126 @@
+--[[-------------------------------------------------------------------------
+  James Whitehead II grants anyone the right to use this work for any purpose,
+  without any conditions, unless such conditions are required by law.
+---------------------------------------------------------------------------]]
+
+local major = "DongleStub"
+local minor = tonumber(string.match("$Revision: 313 $", "(%d+)") or 1)
+
+local g = getfenv(0)
+
+if not g.DongleStub or g.DongleStub:IsNewerVersion(major, minor) then
+	local lib = setmetatable({}, {
+		__call = function(t,k)
+			if type(t.versions) == "table" and t.versions[k] then
+				return t.versions[k].instance
+			else
+				error("Cannot find a library with name '"..tostring(k).."'", 2)
+			end
+		end
+	})
+
+	function lib:IsNewerVersion(major, minor)
+		local versionData = self.versions and self.versions[major]
+
+		-- If DongleStub versions have differing major version names
+		-- such as DongleStub-Beta0 and DongleStub-1.0-RC2 then a second
+		-- instance will be loaded, with older logic.  This code attempts
+		-- to compensate for that by matching the major version against
+		-- "^DongleStub", and handling the version check correctly.
+
+		if major:match("^DongleStub") then
+			local oldmajor,oldminor = self:GetVersion()
+			if self.versions and self.versions[oldmajor] then
+				return minor > oldminor
+			else
+				return true
+			end
+		end
+
+		if not versionData then return true end
+		local oldmajor,oldminor = versionData.instance:GetVersion()
+		return minor > oldminor
+	end
+
+	local function NilCopyTable(src, dest)
+		for k,v in pairs(dest) do dest[k] = nil end
+		for k,v in pairs(src) do dest[k] = v end
+	end
+
+	function lib:Register(newInstance, activate, deactivate)
+		assert(type(newInstance.GetVersion) == "function",
+			"Attempt to register a library with DongleStub that does not have a 'GetVersion' method.")
+
+		local major,minor = newInstance:GetVersion()
+		assert(type(major) == "string",
+			"Attempt to register a library with DongleStub that does not have a proper major version.")
+		assert(type(minor) == "number",
+			"Attempt to register a library with DongleStub that does not have a proper minor version.")
+
+		-- Generate a log of all library registrations
+		if not self.log then self.log = {} end
+		table.insert(self.log, string.format("Register: %s, %s", major, minor))
+
+		if not self:IsNewerVersion(major, minor) then return false end
+		if not self.versions then self.versions = {} end
+
+		local versionData = self.versions[major]
+		if not versionData then
+			-- New major version
+			versionData = {
+				["instance"] = newInstance,
+				["deactivate"] = deactivate,
+			}
+
+			self.versions[major] = versionData
+			if type(activate) == "function" then
+				table.insert(self.log, string.format("Activate: %s, %s", major, minor))
+				activate(newInstance)
+			end
+			return newInstance
+		end
+
+		local oldDeactivate = versionData.deactivate
+		local oldInstance = versionData.instance
+
+		versionData.deactivate = deactivate
+
+		local skipCopy
+		if type(activate) == "function" then
+			table.insert(self.log, string.format("Activate: %s, %s", major, minor))
+			skipCopy = activate(newInstance, oldInstance)
+		end
+
+		-- Deactivate the old libary if necessary
+		if type(oldDeactivate) == "function" then
+			local major, minor = oldInstance:GetVersion()
+			table.insert(self.log, string.format("Deactivate: %s, %s", major, minor))
+			oldDeactivate(oldInstance, newInstance)
+		end
+
+		-- Re-use the old table, and discard the new one
+		if not skipCopy then
+			NilCopyTable(newInstance, oldInstance)
+		end
+		return oldInstance
+	end
+
+	function lib:GetVersion() return major,minor end
+
+	local function Activate(new, old)
+		-- This code ensures that we'll move the versions table even
+		-- if the major version names are different, in the case of
+		-- DongleStub
+		if not old then old = g.DongleStub end
+
+		if old then
+			new.versions = old.versions
+			new.log = old.log
+		end
+		g.DongleStub = new
+	end
+
+	-- Actually trigger libary activation here
+	local stub = g.DongleStub or lib
+	lib = stub:Register(lib, Activate)
+end
diff --git a/libs/Astrolabe/Load.xml b/libs/Astrolabe/Load.xml
new file mode 100644
index 0000000..c63266f
--- /dev/null
+++ b/libs/Astrolabe/Load.xml
@@ -0,0 +1,6 @@
+<Ui xmlns="http://www.blizzard.com/wow/ui/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.blizzard.com/wow/ui/
+..\FrameXML\UI.xsd">
+	<Script file="DongleStub.lua"/>
+	<Script file="AstrolabeMapMonitor.lua"/>
+	<Script file="Astrolabe.lua"/>
+</Ui>
diff --git a/libs/Astrolabe/lgpl.txt b/libs/Astrolabe/lgpl.txt
new file mode 100644
index 0000000..5ab7695
--- /dev/null
+++ b/libs/Astrolabe/lgpl.txt
@@ -0,0 +1,504 @@
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+  This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it.  You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
+strategy to use in any particular case, based on the explanations below.
+
+  When we speak of free software, we are referring to freedom of use,
+not price.  Our General Public Licenses are designed to make sure that
+you have the freedom to distribute copies of free software (and charge
+for this service if you wish); that you receive source code or can get
+it if you want it; that you can change the software and use pieces of
+it in new free programs; and that you are informed that you can do
+these things.
+
+  To protect your rights, we need to make restrictions that forbid
+distributors to deny you these rights or to ask you to surrender these
+rights.  These restrictions translate to certain responsibilities for
+you if you distribute copies of the library or if you modify it.
+
+  For example, if you distribute copies of the library, whether gratis
+or for a fee, you must give the recipients all the rights that we gave
+you.  You must make sure that they, too, receive or can get the source
+code.  If you link other code with the library, you must provide
+complete object files to the recipients, so that they can relink them
+with the library after making changes to the library and recompiling
+it.  And you must show them these terms so they know their rights.
+
+  We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
+permission to copy, distribute and/or modify the library.
+
+  To protect each distributor, we want to make it very clear that
+there is no warranty for the free library.  Also, if the library is
+modified by someone else and passed on, the recipients should know
+that what they have is not the original version, so that the original
+author's reputation will not be affected by problems that might be
+introduced by others.
+
+  Finally, software patents pose a constant threat to the existence of
+any free program.  We wish to make sure that a company cannot
+effectively restrict the users of a free program by obtaining a
+restrictive license from a patent holder.  Therefore, we insist that
+any patent license obtained for a version of the library must be
+consistent with the full freedom of use specified in this license.
+
+  Most GNU software, including some libraries, is covered by the
+ordinary GNU General Public License.  This license, the GNU Lesser
+General Public License, applies to certain designated libraries, and
+is quite different from the ordinary General Public License.  We use
+this license for certain libraries in order to permit linking those
+libraries into non-free programs.
+
+  When a program is linked with a library, whether statically or using
+a shared library, the combination of the two is legally speaking a
+combined work, a derivative of the original library.  The ordinary
+General Public License therefore permits such linking only if the
+entire combination fits its criteria of freedom.  The Lesser General
+Public License permits more lax criteria for linking other code with
+the library.
+
+  We call this license the "Lesser" General Public License because it
+does Less to protect the user's freedom than the ordinary General
+Public License.  It also provides other free software developers Less
+of an advantage over competing non-free programs.  These disadvantages
+are the reason we use the ordinary General Public License for many
+libraries.  However, the Lesser license provides advantages in certain
+special circumstances.
+
+  For example, on rare occasions, there may be a special need to
+encourage the widest possible use of a certain library, so that it becomes
+a de-facto standard.  To achieve this, non-free programs must be
+allowed to use the library.  A more frequent case is that a free
+library does the same job as widely used non-free libraries.  In this
+case, there is little to gain by limiting the free library to free
+software only, so we use the Lesser General Public License.
+
+  In other cases, permission to use a particular library in non-free
+programs enables a greater number of people to use a large body of
+free software.  For example, permission to use the GNU C Library in
+non-free programs enables many more people to use the whole GNU
+operating system, as well as its variant, the GNU/Linux operating
+system.
+
+  Although the Lesser General Public License is Less protective of the
+users' freedom, it does ensure that the user of a program that is
+linked with the Library has the freedom and the wherewithal to run
+that program using a modified version of the Library.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.  Pay close attention to the difference between a
+"work based on the library" and a "work that uses the library".  The
+former contains code derived from the library, whereas the latter must
+be combined with the library in order to run.
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License Agreement applies to any software library or other
+program which contains a notice placed by the copyright holder or
+other authorized party saying it may be distributed under the terms of
+this Lesser General Public License (also called "this License").
+Each licensee is addressed as "you".
+
+  A "library" means a collection of software functions and/or data
+prepared so as to be conveniently linked with application programs
+(which use some of those functions and data) to form executables.
+
+  The "Library", below, refers to any such software library or work
+which has been distributed under these terms.  A "work based on the
+Library" means either the Library or any derivative work under
+copyright law: that is to say, a work containing the Library or a
+portion of it, either verbatim or with modifications and/or translated
+straightforwardly into another language.  (Hereinafter, translation is
+included without limitation in the term "modification".)
+
+  "Source code" for a work means the preferred form of the work for
+making modifications to it.  For a library, complete source code means
+all the source code for all modules it contains, plus any associated
+interface definition files, plus the scripts used to control compilation
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