private void AddUntouchedLoop(SectorConstrainedOSMAreaGraph map, List <Way> superLoop)
{
List <AreaNode> newNodes = new List <AreaNode>();
var broken = BreakDownSuperLoop(superLoop);
for (int i = 0; i < broken.Count - 1; i++) // since our loops end in a duplicate
{
AreaNode curr = new AreaNode()
{
id = broken[i]
};
newNodes.Add(curr);
if (!map.nodes.ContainsKey(broken[i]))
{
map.nodes[broken[i]] = new List <AreaNode>();
}
map.nodes[broken[i]].Add(curr);
}
for (int i = 0; i < newNodes.Count; i++)
{
AreaNode prev = newNodes[i];
AreaNode next = newNodes[(i + 1) % newNodes.Count];
prev.next = next;
next.prev = prev;
}
}
private SectorConstrainedOSMAreaGraph GridToArea(bool[,] grid, int size, BlobCollection blobs)
{
SectorConstrainedOSMAreaGraph newMap = new SectorConstrainedOSMAreaGraph();
for (int i = 0; i < size * size; i++)
{
if (grid[i / size, i % size])
{
int x1 = i / size;
int y1 = i % size;
int x2 = i / size + 1;
int y2 = i % size + 1;
if (x1 == 0 || !grid[x1 - 1, y1])
{
AddLine(blobs.nodes, newMap, x1, y1, x1, y2, true); // down
}
if (y2 == size || !grid[x1, y2])
{
AddLine(blobs.nodes, newMap, x1, y2, x2, y2, true); // right
}
if (x2 == size || !grid[x2, y1])
{
AddLine(blobs.nodes, newMap, x2, y2, x2, y1, true); // up
}
if (y1 == 0 || !grid[x1, y1 - 1])
{
AddLine(blobs.nodes, newMap, x2, y1, x1, y1, true); // left
}
}
}
return(newMap);
}
private void RandomSubtractTest(Random rand)
{
var blobs = new BlobCollection();
int size = 2;
bool[,] grid1 = RandomGrid(rand, size);
bool[,] grid2 = RandomGrid(rand, size);
bool[,] grid3 = SubtractGrids(grid1, grid2, size);
if (!IsValidGrid(grid1, size))
{
return;
}
if (!IsValidGrid(grid2, size))
{
return;
}
int expectedArea = AreaOfGrid(grid3, size);
SectorConstrainedOSMAreaGraph asGraph1 = GridToArea(grid1, size, blobs);
SectorConstrainedOSMAreaGraph asGraph2 = GridToArea(grid2, size, blobs);
double area = GetArea(asGraph1.Subtract(asGraph2, blobs).Finalize(blobs).GetTesselationVertices(Color.White));
if (expectedArea != area)
{
throw new NotImplementedException();
}
}
private static SectorConstrainedOSMAreaGraph MakeOpenRect(Dictionary <long, Vector2d> nodes, int x1, int y1, int x2, int y2, bool leftOpen, bool cornersOnly)
{
SectorConstrainedOSMAreaGraph graph = new SectorConstrainedOSMAreaGraph();
if (!leftOpen)
{
AddLine(nodes, graph, x1, y1, x1, y2, cornersOnly); // down
}
AddLine(nodes, graph, x1, y2, x2, y2, cornersOnly); // right
if (leftOpen)
{
AddLine(nodes, graph, x2, y2, x2, y1, cornersOnly); // up
}
AddLine(nodes, graph, x2, y1, x1, y1, cornersOnly); // left
if (leftOpen)
{
MarkStartPoint(graph, x1, y2);
MarkEndPoint(graph, x1, y1);
}
else
{
MarkStartPoint(graph, x2, y1);
MarkEndPoint(graph, x2, y2);
}
return(graph);
}
private static void AddLine(Dictionary <long, Vector2d> nodes, SectorConstrainedOSMAreaGraph graph, int x1, int y1, int x2, int y2, bool cornersOnly)
{
if (cornersOnly)
{
AddLineSeg(nodes, graph, x1, y1, x2, y2);
}
else
{
if (x1 == x2)
{
int length = Math.Abs(y2 - y1);
int inc = (y2 - y1) / length;
for (int i = 0; i < length; i++)
{
AddLineSeg(nodes, graph, x1, y1 + i * inc, x2, y1 + (i + 1) * inc);
}
}
else if (y1 == y2)
{
int length = Math.Abs(x2 - x1);
int inc = (x2 - x1) / length;
for (int i = 0; i < length; i++)
{
AddLineSeg(nodes, graph, x1 + i * inc, y1, x1 + (i + 1) * inc, y2);
}
}
else
{
throw new NotImplementedException();
}
}
}
public void Load(BlobCollection blobs)
{
if (loaded)
{
return;
}
graph = isCoast ? blobs.GetCoastAreaMap(key, value) : blobs.GetAreaMap(key, value);
loaded = true;
}
public void Load(BlobCollection blobs)
{
if (loaded)
{
return;
}
polygonSource.Load(blobs);
graph = polygonSource.GetGraph();
loaded = true;
}
private static SectorConstrainedOSMAreaGraph MakeRect(Dictionary <long, Vector2d> nodes, int x1, int y1, int x2, int y2, bool cornersOnly)
{
SectorConstrainedOSMAreaGraph graph = new SectorConstrainedOSMAreaGraph();
AddLine(nodes, graph, x1, y1, x1, y2, cornersOnly); // down
AddLine(nodes, graph, x1, y2, x2, y2, cornersOnly); // right
AddLine(nodes, graph, x2, y2, x2, y1, cornersOnly); // up
AddLine(nodes, graph, x2, y1, x1, y1, cornersOnly); // left
return(graph);
}
private static void TestAddThenSubtract(int size1, int offsetX1, int offsetY1, int size2, int offsetX2, int offsetY2, int size3, int area, BlobCollection blobs, bool cornersOnly)
{
SectorConstrainedOSMAreaGraph square1 = MakeRect(blobs.nodes, 0, 0, size1, size1, cornersOnly);
SectorConstrainedOSMAreaGraph square2 = MakeRect(blobs.nodes, offsetX1, offsetY1, offsetX1 + size2, offsetY1 + size2, cornersOnly);
SectorConstrainedOSMAreaGraph square3 = MakeRect(blobs.nodes, offsetX2, offsetY2, offsetX2 + size3, offsetY2 + size3, cornersOnly);
double areaAns = GetArea(square1.Subtract(square2.Add(square3, blobs), blobs).Finalize(blobs).GetTesselationVertices(Color.White));
if (areaAns != area)
{
throw new NotImplementedException();
}
}
public void Dispose()
{
if (polygonSource1 != null)
{
polygonSource1.Dispose();
}
if (polygonSource2 != null)
{
polygonSource2.Dispose();
}
graph = null;
map = null;
}
public void Dispose()
{
if (polygonSource != null)
{
polygonSource.Dispose();
}
graph = null;
lineGraph = null;
foreach (var pair in bufferCache)
{
pair.Value.Dispose();
}
}
public void Load(BlobCollection blobs)
{
if (loaded)
{
return;
}
polygonSource1.Load(blobs);
polygonSource2.Load(blobs);
graph = polygonSource1.GetGraph().Subtract(polygonSource2.GetGraph(), blobs);
if (Constants.DEBUG_MODE)
{
graph.CheckValid();
}
loaded = true;
}
internal SectorConstrainedOSMAreaGraph GetCoastAreaMap(string key, string value)
{
// remember: "If you regard this as tracing around an area of land, then the coastline way should be running counterclockwise."
// gather ways with matching starts/ends to form a super-way, coast ways should always run the same direction, so this becomes easier
SuperWayCollection superWays = GenerateSuperWayCollection(EnumerateWays().Where(x => x.keyValues.ContainsKey(key) && x.keyValues[key] == value), false);
SectorConstrainedOSMAreaGraph map = DoMultipolygon(superWays);
if (OSMMetaFinal.IsPixelLand(sector) || borderWay.refs.Count > 5) // just return a big ol' square
{
SectorConstrainedOSMAreaGraph temp = new SectorConstrainedOSMAreaGraph();
for (int i = 1; i < borderWay.refs.Count; i++)
{
if (!temp.nodes.ContainsKey(borderWay.refs[i]))
{
temp.nodes[borderWay.refs[i]] = new List <AreaNode>();
temp.nodes[borderWay.refs[i]].Add(new AreaNode()
{
id = borderWay.refs[i]
});
}
}
for (int i = 1; i < borderWay.refs.Count; i++)
{
AreaNode prev = temp.nodes[borderWay.refs[i - 1]].Single();
AreaNode next = temp.nodes[borderWay.refs[i]].Single();
if (prev.id != next.id)
{
prev.next = next;
next.prev = prev;
}
}
map = map.Intersect(temp, this);
}
BlobsIntersector.FixLoops(new List <SectorConstrainedOSMAreaGraph>()
{
map
}, this);
if (Constants.DEBUG_MODE)
{
map.CheckValid();
}
return(map);
}
private SectorConstrainedOSMAreaGraph DoMultipolygon(SuperWayCollection superWays)
{
SectorConstrainedOSMAreaGraph map = new SectorConstrainedOSMAreaGraph();
foreach (var superWay in superWays.linkedWays) // we expect these to always start and end outside the sector
{
AddConstrainedPaths(map, superWay);
}
map.CloseLines(this);
map.RemoveDuplicateLines();
if (Constants.DEBUG_MODE)
{
map.CheckValid();
}
foreach (var superLoop in superWays.loopedWays)
{
double wayArea = GetArea(superLoop);
if (Math.Abs(wayArea) < SMALLEST_ALLOWED_AREA)
{
continue; // ignore zero-area ways since it really messes with the tesselator (ex: way 43624681) TODO: maybe check for absolute zero via node duplication?
}
bool isCW = wayArea < 0;
var temp = new SectorConstrainedOSMAreaGraph();
bool untouchedLoop = CheckIfUntouchedAndSpin(superLoop);
if (untouchedLoop)
{
AddUntouchedLoop(temp, superLoop);
}
else
{
AddConstrainedPaths(temp, superLoop);
}
temp.CloseLines(this);
temp.RemoveDuplicateLines();
if (Constants.DEBUG_MODE)
{
temp.CheckValid();
}
map.Add(temp, this);
}
return(map);
}
private static void TestAddAndSubtract(int size1, int offsetX, int offsetY, int size2, BlobCollection blobs, int addArea, int subArea, bool testOpen, bool cornersOnly)
{
if (!testOpen)
{
SectorConstrainedOSMAreaGraph square1 = MakeRect(blobs.nodes, 0, 0, size1, size1, cornersOnly);
SectorConstrainedOSMAreaGraph square2 = MakeRect(blobs.nodes, offsetX, offsetY, offsetX + size2, offsetY + size2, cornersOnly);
var blobs2 = Clone(blobs); // clone since we modify blobs now
//if (square1.Clone().Add(square2, blobs).Area(blobs) != addArea) throw new NotImplementedException();
//if (square1.Clone().Subtract(square2, blobs).Area(blobs) != subArea) throw new NotImplementedException();
double area1 = GetArea(square1.Clone().Add(square2, blobs).Finalize(blobs).GetTesselationVertices(Color.White));
double area2 = GetArea(square1.Clone().Subtract(square2, blobs2).Finalize(blobs2).GetTesselationVertices(Color.White));
if (area1 != addArea)
{
throw new NotImplementedException();
}
if (area2 != subArea)
{
throw new NotImplementedException();
}
}
else
{
// test some coastline stuff
SectorConstrainedOSMAreaGraph square1 = MakeOpenRect(blobs.nodes, 0, 0, size1, size1, true, cornersOnly); // leave left open
SectorConstrainedOSMAreaGraph square2 = MakeOpenRect(blobs.nodes, offsetX, offsetY, offsetX + size2, offsetY + size2, false, cornersOnly); // leave right open
var blobs2 = Clone(blobs); // clone since we modify blobs now
double area1 = GetArea(square1.Clone().Add(square2, blobs).Finalize(blobs).GetTesselationVertices(Color.White));
double area2 = GetArea(square1.Clone().Subtract(square2, blobs2).Finalize(blobs2).GetTesselationVertices(Color.White));
if (area1 != addArea)
{
throw new NotImplementedException();
}
if (area2 != subArea)
{
throw new NotImplementedException();
}
}
}
private static void AddLineSeg(Dictionary <long, Vector2d> nodes, SectorConstrainedOSMAreaGraph graph, int x1, int y1, int x2, int y2)
{
long n1 = (x1 + 500) * 1000 + (y1 + 500);
long n2 = (x2 + 500) * 1000 + (y2 + 500);
if (!graph.nodes.ContainsKey(n1))
{
graph.nodes.Add(n1, new List <AreaNode>()
{
new AreaNode()
{
id = n1
}
});
}
if (!nodes.ContainsKey(n1))
{
nodes[n1] = new Vector2d(x1, y1);
}
if (!graph.nodes.ContainsKey(n2))
{
graph.nodes.Add(n2, new List <AreaNode>()
{
new AreaNode()
{
id = n2
}
});
}
if (!nodes.ContainsKey(n2))
{
nodes[n2] = new Vector2d(x2, y2);
}
graph.nodes[n1].Single().next = graph.nodes[n2].Single();
graph.nodes[n2].Single().prev = graph.nodes[n1].Single();
}
private static void MarkStartPoint(SectorConstrainedOSMAreaGraph graph, int x, int y)
{
long n = (x + 500) * 1000 + (y + 500);
graph.nodes.Remove(n);
}
private void OrientSuperWays(SuperWayCollection superInnerWays, SuperWayCollection superOuterWays, bool topLeftIsInside)
{
List <List <Way> > allLinkedWays = new List <List <Way> >();
allLinkedWays.AddRange(superInnerWays.linkedWays);
allLinkedWays.AddRange(superOuterWays.linkedWays);
List <List <Way> > allLoopedWays = new List <List <Way> >();
allLoopedWays.AddRange(superInnerWays.loopedWays);
allLoopedWays.AddRange(superOuterWays.loopedWays);
// assume all loops dont touch the edge for now (they can be corrected later)
foreach (var superLoop in allLoopedWays)
{
SectorConstrainedOSMAreaGraph temp = new SectorConstrainedOSMAreaGraph();
bool isCW = ApproximateCW(superLoop);
if (isCW) // TODO: why did I have this has the opposite logic before??
{
// force to be an "outer"
superLoop.Reverse();
foreach (var way in superLoop)
{
way.refs.Reverse();
}
}
}
// now do the -real- orienting
List <SuperWayIntersection> intersections = new List <SuperWayIntersection>();
foreach (var superWay in superOuterWays.linkedWays) // we expect these to always start and end outside the sector
{
AddIntersections(intersections, superWay, false);
}
foreach (var superLoop in superOuterWays.loopedWays)
{
bool untouchedLoop = CheckIfUntouchedAndSpin(superLoop);
if (!untouchedLoop)
{
AddIntersections(intersections, superLoop, false);
}
}
if (intersections.Count == 0 && topLeftIsInside)
{
// we are inside some quite large relation - let's add the big ol' box so we can subtract from it
superOuterWays.loopedWays.Add(new List <Way>()
{
borderWay
});
}
foreach (var superWay in superInnerWays.linkedWays) // we expect these to always start and end outside the sector
{
AddIntersections(intersections, superWay, true);
}
foreach (var superLoop in superInnerWays.loopedWays)
{
bool untouchedLoop = CheckIfUntouchedAndSpin(superLoop);
if (!untouchedLoop)
{
AddIntersections(intersections, superLoop, true);
}
}
if (intersections.Count % 2 != 0)
{
throw new NotImplementedException();
}
intersections = intersections.OrderBy(x => (Math.Atan2(x.intersection.Y - 0.5, x.intersection.X - 0.5) + 8 * Math.PI - (-Math.PI * 3 / 4)) % (2 * Math.PI)).ToList(); // clockwise order starting at top-left
// look for duplicates that are near each other, had this issue with relation 534928, if they're close enough we'll just ignore them for now - TODO: this may cause issues later
HashSet <int> ignore = new HashSet <int>();
for (int i = 0; i < intersections.Count; i++)
{
int j = (i + 1) % intersections.Count;
if ((intersections[i].intersection - intersections[j].intersection).Length() < 0.0000001)
{
ignore.Add(i);
ignore.Add(j);
}
}
HashSet <List <Way> > correctDirectionHash = new HashSet <List <Way> >();
HashSet <List <Way> > incorrectDirectionHash = new HashSet <List <Way> >();
for (int i = 0; i < intersections.Count; i++)
{
if (ignore.Contains(i))
{
continue;
}
bool correctDirection = intersections[i].leaving == (topLeftIsInside ^ (i % 2 == 1));
if (intersections[i].inner)
{
correctDirection = !correctDirection; // flip all of the inners back, since we're about to subtract them
}
if (correctDirection)
{
correctDirectionHash.Add(intersections[i].superWay);
if (incorrectDirectionHash.Contains(intersections[i].superWay))
{
throw new NotImplementedException(); // disagreement
}
}
else
{
incorrectDirectionHash.Add(intersections[i].superWay);
if (correctDirectionHash.Contains(intersections[i].superWay))
{
throw new NotImplementedException(); // disagreement
}
}
}
foreach (var superWay in incorrectDirectionHash)
{
superWay.Reverse();
foreach (var way in superWay)
{
way.refs.Reverse();
}
}
}
internal SectorConstrainedOSMAreaGraph GetAreaMap(string key, string value)
{
var simpleWays = EnumerateWays().Where(x => x.keyValues.ContainsKey(key) && x.keyValues[key] == value); // we expect all of these to be closed loops
// copy this dang multipolygon way id gathering logic
Dictionary <long, Way> wayLookup = new Dictionary <long, Way>();
foreach (var way in EnumerateWays())
{
wayLookup[way.id] = way;
}
List <List <long> > inners = new List <List <long> >();
List <List <long> > outers = new List <List <long> >();
List <long> relationIds = new List <long>();
HashSet <long> otherInnerOuters = new HashSet <long>();
foreach (var blob in blobs)
{
if (blob.type != "OSMData")
{
continue;
}
int typeIndex = blob.pBlock.stringtable.vals.IndexOf("type");
int multipolygonIndex = blob.pBlock.stringtable.vals.IndexOf("multipolygon");
int outerIndex = blob.pBlock.stringtable.vals.IndexOf("outer");
int innerIndex = blob.pBlock.stringtable.vals.IndexOf("inner");
int keyIndex = blob.pBlock.stringtable.vals.IndexOf(key);
int valueIndex = blob.pBlock.stringtable.vals.IndexOf(value);
if (new[] { typeIndex, multipolygonIndex, outerIndex, innerIndex, keyIndex, valueIndex }.Contains(-1))
{
continue;
}
foreach (var pGroup in blob.pBlock.primitivegroup)
{
foreach (var relation in pGroup.relations)
{
bool isKeyValue = false;
bool isTypeMultipolygon = false;
for (int i = 0; i < relation.keys.Count; i++)
{
if (relation.keys[i] == keyIndex && relation.vals[i] == valueIndex)
{
isKeyValue = true;
}
if (relation.keys[i] == typeIndex && relation.vals[i] == multipolygonIndex)
{
isTypeMultipolygon = true;
}
}
if (isTypeMultipolygon)
{
if (isKeyValue)
{
List <long> innerWayIds = new List <long>();
List <long> outerWayIds = new List <long>();
for (int i = 0; i < relation.roles_sid.Count; i++)
{
// just outer for now
if (relation.types[i] == 1)
{
if (relation.roles_sid[i] == 0 && innerIndex != 0 && outerIndex != 0)
{
// some ways are in a relation without any inner/outer tag
// ex: 359181377 in relation 304768
outerWayIds.Add(relation.memids[i]);
}
else
{
if (relation.roles_sid[i] == innerIndex)
{
innerWayIds.Add(relation.memids[i]);
}
if (relation.roles_sid[i] == outerIndex)
{
outerWayIds.Add(relation.memids[i]);
}
}
}
}
inners.Add(innerWayIds);
outers.Add(outerWayIds);
relationIds.Add(relation.id);
}
else
{
for (int i = 0; i < relation.roles_sid.Count; i++)
{
// just outer for now
if (relation.types[i] == 1)
{
otherInnerOuters.Add(relation.memids[i]);
}
}
}
}
}
}
}
HashSet <long> innersAndOuters = new HashSet <long>();
foreach (var innerList in inners)
{
foreach (var inner in innerList)
{
innersAndOuters.Add(inner);
}
}
foreach (var outerList in outers)
{
foreach (var outer in outerList)
{
innersAndOuters.Add(outer);
}
}
// end gathering logic
// add each simple way, flipping them where necessary
List <SectorConstrainedOSMAreaGraph> addingMaps = new List <SectorConstrainedOSMAreaGraph>();
foreach (var way in simpleWays)
{
if (innersAndOuters.Contains(way.id))
{
continue; // sometimes lake multipolygons also tag several pieces - at best this is redundant, and at worst causes errors
}
if (way.refs.Count < 3)
{
continue; // we -usually- only ever see lines with multipolygons, but I found a weird way like 43435045
}
if (way.selfIntersects)
{
continue; // just ignore ways like 43410874 to keep you sane
}
SectorConstrainedOSMAreaGraph simpleMap = new SectorConstrainedOSMAreaGraph();
var superLoop = new List <Way>()
{
way
};
if (way.refs.Last() != way.refs.First())
{
if (otherInnerOuters.Contains(way.id))
{
continue; // unsure of how else to ignore bad ways like 43815149
}
way.refs.Add(way.refs.First()); // some folks forget to close a simple way, or perhaps the mistake is tagging subcomponents of a relation
}
if (!IsValid(superLoop))
{
continue; // ignore relations like 512080985 which contain duplicate nodes
}
double wayArea = GetArea(superLoop);
if (Math.Abs(wayArea) < SMALLEST_ALLOWED_AREA)
{
continue; // ignore zero-area ways since it really messes with the tesselator (ex: way 43624681) TODO: maybe check for absolute zero via node duplication?
}
bool isCW = wayArea < 0;
if (isCW)
{
way.refs.Reverse(); // the simple polygons are always "outers"
}
bool untouchedLoop = CheckIfUntouchedAndSpin(superLoop);
if (untouchedLoop)
{
AddUntouchedLoop(simpleMap, superLoop);
}
else
{
AddConstrainedPaths(simpleMap, superLoop);
simpleMap.CloseLines(this);
if (Constants.DEBUG_MODE)
{
simpleMap.CheckValid();
}
}
simpleMap.RemoveDuplicateLines();
if (Constants.DEBUG_MODE)
{
simpleMap.CheckValid();
}
addingMaps.Add(simpleMap);
}
// construct each multipolygon to add separately
for (int i = 0; i < inners.Count; i++) // foreach multipolygon, basically
{
if (OSMMetaFinal.GLOBAL_FINAL.badRelations.Contains(relationIds[i]))
{
continue;
}
// TODO: with islands inside of ponds inside of islands inside of ponds, etc. we wouldn't expect this to work
// however, we're taking advantage of the fact that Add/Subtract doesn't check for that for now (until Finalize)
SuperWayCollection superInnerWays = GenerateSuperWayCollection(inners[i].Where(x => wayLookup.ContainsKey(x)).Select(x => Copy(wayLookup[x])), true);
SuperWayCollection superOuterWays = GenerateSuperWayCollection(outers[i].Where(x => wayLookup.ContainsKey(x)).Select(x => Copy(wayLookup[x])), true);
superInnerWays.loopedWays = superInnerWays.loopedWays.Where(x => Math.Abs(GetArea(x)) >= SMALLEST_ALLOWED_AREA).ToList(); // ignore zero-area ways since it really messes with the tesselator (ex: way 43624681) TODO: maybe check for absolute zero via node duplication?
superOuterWays.loopedWays = superOuterWays.loopedWays.Where(x => Math.Abs(GetArea(x)) >= SMALLEST_ALLOWED_AREA).ToList(); // ignore zero-area ways since it really messes with the tesselator (ex: way 43624681) TODO: maybe check for absolute zero via node duplication?
if (!IsValid(superInnerWays))
{
continue;
}
if (!IsValid(superOuterWays))
{
continue;
}
OrientSuperWays(superInnerWays, superOuterWays, gridPointInfo.relations.Contains(relationIds[i]));
SectorConstrainedOSMAreaGraph innerMap = DoMultipolygon(superInnerWays);
SectorConstrainedOSMAreaGraph outerMap = DoMultipolygon(superOuterWays);
if (Constants.DEBUG_MODE)
{
innerMap.CheckValid();
}
if (Constants.DEBUG_MODE)
{
outerMap.CheckValid();
}
SectorConstrainedOSMAreaGraph multiPolygon = outerMap.Subtract(innerMap, this);
if (Constants.DEBUG_MODE)
{
multiPolygon.CheckValid();
}
addingMaps.Add(multiPolygon);
}
SectorConstrainedOSMAreaGraph map = new SectorConstrainedOSMAreaGraph();
BlobsIntersector.FixLoops(addingMaps, this);
foreach (var addingMap in addingMaps)
{
map.Add(addingMap, this);
}
if (Constants.DEBUG_MODE)
{
map.CheckValid();
}
return(map);
}
private void AddConstrainedPaths(SectorConstrainedOSMAreaGraph map, List <Way> superWay)
{
if (sector.ContainsCoord(nodes[superWay.First().refs.First()]))
{
throw new NotImplementedException();
}
if (sector.ContainsCoord(nodes[superWay.Last().refs.Last()]))
{
throw new NotImplementedException();
}
List <AreaNode> nodesToAdd = new List <AreaNode>();
for (int i = 0; i < superWay.Count; i++)
{
for (int j = 1; j < superWay[i].refs.Count; j++)
{
long next = superWay[i].refs[j];
nodesToAdd.Add(new AreaNode()
{
id = next
});
}
}
for (int i = 0; i < nodesToAdd.Count; i++)
{
var prev = nodesToAdd[(i + nodesToAdd.Count - 1) % nodesToAdd.Count];
var curr = nodesToAdd[i];
var next = nodesToAdd[(i + 1) % nodesToAdd.Count];
if (sector.BorderContainsCoord(nodes[curr.id]))
{
bool add = false;
if (!sector.BorderContainsCoord(nodes[next.id]) && sector.ContainsCoord(nodes[next.id]))
{
curr.next = next;
next.prev = curr;
add = true;
}
if (!sector.BorderContainsCoord(nodes[prev.id]) && sector.ContainsCoord(nodes[prev.id]))
{
curr.prev = prev;
prev.next = curr;
add = true;
}
if (sector.BorderContainsCoord(nodes[prev.id]) && nodes[prev.id].X != nodes[curr.id].X && nodes[prev.id].Y != nodes[curr.id].Y)
{
prev.next = curr;
curr.prev = prev;
add = true;
if (!map.nodes.ContainsKey(prev.id))
{
map.nodes[prev.id] = new List <AreaNode>();
}
map.nodes[prev.id].Add(prev);
}
if (add)
{
if (!map.nodes.ContainsKey(curr.id))
{
map.nodes[curr.id] = new List <AreaNode>();
}
map.nodes[curr.id].Add(curr);
}
}
else if (sector.ContainsCoord(nodes[curr.id]))
{
if (!map.nodes.ContainsKey(curr.id))
{
map.nodes[curr.id] = new List <AreaNode>();
}
map.nodes[curr.id].Add(curr);
if (!sector.ContainsCoord(nodes[prev.id]))
{
throw new NotImplementedException(); // previous should be border point or inside
}
if (!sector.ContainsCoord(nodes[next.id]))
{
throw new NotImplementedException(); // next should be border point or inside
}
if (!sector.BorderContainsCoord(nodes[prev.id]))
{
curr.prev = prev; // edges will handle their prev/next logic
}
if (!sector.BorderContainsCoord(nodes[next.id]))
{
curr.next = next;
}
}
}
}
private void ToughTest()
{
var blobs = new BlobCollection();
SectorConstrainedOSMAreaGraph coast = new SectorConstrainedOSMAreaGraph();
AddLineSeg(blobs.nodes, coast, 6, 6, 6, 5);
AddLineSeg(blobs.nodes, coast, 6, 5, 6, 4);
AddLineSeg(blobs.nodes, coast, 6, 4, 6, 3);
AddLineSeg(blobs.nodes, coast, 6, 3, 5, 2);
AddLineSeg(blobs.nodes, coast, 5, 2, 3, 2);
AddLineSeg(blobs.nodes, coast, 3, 2, 2, 2);
AddLineSeg(blobs.nodes, coast, 2, 2, 1, 2);
MarkStartPoint(coast, 6, 6);
MarkEndPoint(coast, 1, 2);
SectorConstrainedOSMAreaGraph bigLake = new SectorConstrainedOSMAreaGraph();
AddLineSeg(blobs.nodes, bigLake, 7, 0, 3, 0);
AddLineSeg(blobs.nodes, bigLake, 3, 0, 3, 1);
AddLineSeg(blobs.nodes, bigLake, 3, 1, 4, 1);
AddLineSeg(blobs.nodes, bigLake, 4, 1, 5, 2);
AddLineSeg(blobs.nodes, bigLake, 5, 2, 6, 3);
AddLineSeg(blobs.nodes, bigLake, 6, 3, 6, 4);
AddLineSeg(blobs.nodes, bigLake, 6, 4, 6, 5);
AddLineSeg(blobs.nodes, bigLake, 6, 5, 7, 5);
AddLineSeg(blobs.nodes, bigLake, 7, 5, 7, 0);
SectorConstrainedOSMAreaGraph smallLake = new SectorConstrainedOSMAreaGraph();
AddLineSeg(blobs.nodes, smallLake, 2, 1, 2, 2);
AddLineSeg(blobs.nodes, smallLake, 2, 2, 3, 2);
AddLineSeg(blobs.nodes, smallLake, 3, 2, 5, 4);
AddLineSeg(blobs.nodes, smallLake, 5, 4, 6, 4);
AddLineSeg(blobs.nodes, smallLake, 6, 4, 3, 1);
AddLineSeg(blobs.nodes, smallLake, 3, 1, 2, 1);
double coastArea = GetArea(coast.Finalize(blobs).GetTesselationVertices(Color.White));
if (coastArea != 19.5 - 10)
{
throw new NotImplementedException(); // sure, minus 10 because everything's scaled up and we can't properly close
}
double bigLakeArea = GetArea(bigLake.Finalize(blobs).GetTesselationVertices(Color.White));
if (bigLakeArea != 10)
{
throw new NotImplementedException();
}
double smallLakeArea = GetArea(smallLake.Finalize(blobs).GetTesselationVertices(Color.White));
if (smallLakeArea != 3.5)
{
throw new NotImplementedException();
}
var lakes = bigLake.Clone().Add(smallLake, blobs);
double lakesArea = GetArea(lakes.Finalize(blobs).GetTesselationVertices(Color.White));
// if (lakesArea != 13.5) throw new NotImplementedException(); // looks like the tesselator is filling in the hole?
var final = coast.Clone().Subtract(lakes, blobs);
double finalArea = GetArea(final.Finalize(blobs).GetTesselationVertices(Color.White));
if (finalArea != 17.5 - 10)
{
throw new NotImplementedException(); // sure, minus 10 because everything's scaled up and we can't properly close
}
}
public void Dispose()
{
graph = null;
map = null;
}
