I pretty much don't understand any of them but rivers very well.
These are the ( think) basic lands/oceans from a map I made on the Cartographer's Table:
<TileData>346,1,0,0.000000,0,16,-1</TileData>
<TileData>1,5,0,0.000000,0,13,-1</TileData>
<TileData>12,1,0,0.000000,0,16,-1</TileData>
<TileData>1,5,0,0.000000,0,13,-1</TileData>
<TileData>64,1,0,0.000000,0,16,-1</TileData>
<TileData>6,5,0,0.000000,0,13,-1</TileData>
These are totally Greek to me.
Forests:
<ForestData>24,8,Forest 151,DeadForest01,3,0.000000</ForestData>
<ForestData>38,8,Forest 152,DeadForest01,3,0.000000</ForestData>
<ForestData>40,8,Forest 0,DeadForest01,5,0.000000</ForestData>
<ForestData>41,8,Forest 1,DeadForest01,3,0.000000</ForestData>
<ForestData>11,9,Forest 153,AutumnForest01,5,0.000000</ForestData>
<ForestData>12,9,Forest 154,AutumnForest01,3,0.000000</ForestData>
<ForestData>22,9,Forest 157,DeadForest01,5,0.000000</ForestData>
The first two numbers are probably X,Y coordinates but I don't know what the rest do.
Here are Swamps:
<SwampForestData>14,9,Swamp 0,SwampForest01,5,0.000000</SwampForestData>
<SwampForestData>15,9,Swamp 0,SwampForest01,3,0.000000</SwampForestData>
<SwampForestData>13,10,Swamp 0,SwampForest01,5,0.000000</SwampForestData>
<SwampForestData>14,10,Swamp 0,SwampForest01,32770,0.000000</SwampForestData>
<SwampForestData>15,10,Swamp 0,SwampForest01,32771,0.000000</SwampForestData>
<SwampForestData>16,10,Swamp 0,SwampForest01,4,0.000000</SwampForestData>
They appear to be basically the same as forests.
Rivers:
<RiverTileData>11,12,0,0,0,0,2</RiverTileData>
<RiverTileData>12,12,0,0,1,0,2</RiverTileData>
<RiverTileData>13,12,0,0,1,0,2</RiverTileData>
<RiverTileData>14,12,0,0,1,0,2</RiverTileData>
<RiverTileData>15,12,0,0,1,0,2</RiverTileData>
I understand the Rivers the best. The first two are X,Y coordinates. The third is a sequence number that ties all the tiles for one river together. The last 4 identify the tile and rotation but I've never been able to figure out exactly what the numbers mean.
These are the rest. Again, the first two numbers apprear to be X,Y coordinates and of course the name of the items but what do the rest of the numbers mean?
<!--WORLD PROPS-->
<MapObjectData>29,49,4,P_Chasm_Tower_02,WorldProp,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>29,51,4,P_Chasm_01,WorldProp,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>47,16,4,P_Chasm_Tower_02,WorldProp,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>52,15,4,P_Chasm_Tower_01,WorldProp,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>49,21,4,P_Chasm_01,WorldProp,0,0,-1,-1,1,1.000000,1</MapObjectData>
<!--SHARDS-->
<MapObjectData>69,25,0,Air Shard,AirShard,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>43,52,0,Air Shard,AirShard,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>61,56,0,Earth Shard,EarthShard,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>68,48,0,Fire Shard,FireShard,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>62,31,0,Life Shard,LifeShard,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>71,28,0,Water Shard,WaterShard,0,0,-1,-1,1,1.000000,1</MapObjectData>
<!--RESOURCES-->
<MapObjectData>59,54,3,Clay Pit,Clay,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>72,19,3,Clay Pit,Clay,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>44,54,3,Clay Pit,Clay,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>64,46,3,Crystal Crag,Crystal,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>67,20,3,Crystal Crag,Crystal,0,0,-1,-1,1,1.000000,1</MapObjectData>
<!--GOODIES-->
<MapObjectData>65,43,2,Lost Library,Treasure_LostLibrary,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>66,45,2,Forgotten Goods,Treasure_LostCrates,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>64,48,2,Equipment Cache,Treasure_EquipmentCache,0,0,-1,-1,1,1.000000,1</MapObjectData>
<MapObjectData>70,50,2,Abandoned Caravan,Treasure_Caravan,0,0,-1,-1,1,1.000000,1</MapObjectData>