public static Collection <Feature> GetFeaturesIntersecting(this QueryTools queryTools, BaseShape targetShape, IEnumerable <string> returningColumnNames, bool useSqlType)
{
Collection <Feature> returnFeatures = null;
if (useSqlType)
{
returnFeatures = new Collection <Feature>();
RectangleShape boundingBox = targetShape.GetBoundingBox();
Collection <Feature> allPossibleFeatures = queryTools.GetFeaturesInsideBoundingBox(boundingBox, returningColumnNames);
foreach (Feature feature in allPossibleFeatures)
{
BaseShape sourceShape = feature.GetShape();
sourceShape = SqlTypesGeometryHelper.MakeValid(sourceShape);
targetShape = SqlTypesGeometryHelper.MakeValid(targetShape);
bool intersects = SqlTypesGeometryHelper.Intersects(sourceShape, targetShape);
if (intersects)
{
returnFeatures.Add(feature);
}
}
}
else
{
returnFeatures = queryTools.GetFeaturesIntersecting(targetShape, returningColumnNames);
}
return(returnFeatures);
}
public static ulong GetLocation(RectangleShape extent, BaseShape shape, int level)
{
RectangleShape extentBoundingBox = SquaredExtent(extent);
RectangleShape shapeBoundingBox = shape.GetBoundingBox();
ulong location = 1;
if (shapeBoundingBox.IsWithin(extentBoundingBox))
{
int currentlevel = 1;
while (currentlevel < level)
{
RectangleShape upperLeft = GetUpperLeftQuater(extentBoundingBox);
RectangleShape uppperRight = GetUpperRightQuater(extentBoundingBox);
RectangleShape lowerLeft = GetLowerLeftQuater(extentBoundingBox);
RectangleShape lowerRight = GetLowerRightQuater(extentBoundingBox);
if (shapeBoundingBox.IsWithin(upperLeft))
{
location = (location << 1) | 1;
currentlevel++;
extentBoundingBox = upperLeft;
}
else if (shapeBoundingBox.IsWithin(uppperRight))
{
location = (location << 2) | 1;
currentlevel++;
extentBoundingBox = uppperRight;
}
else if (shapeBoundingBox.IsWithin(lowerLeft))
{
location = (location << 3) | 1;
currentlevel++;
extentBoundingBox = lowerLeft;
}
else if (shapeBoundingBox.IsWithin(lowerRight))
{
location = (location << 4) | 1;
currentlevel++;
extentBoundingBox = lowerRight;
}
else
{
break;
}
}
}
return(location);
}
public static int GetAppropriateLevel(RectangleShape extent, BaseShape shape)
{
RectangleShape currentBoundingBox = SquaredExtent(extent);
RectangleShape shapeBoundingBox = shape.GetBoundingBox();
int level = 0;
if (shapeBoundingBox.IsWithin(currentBoundingBox))
{
while (true)
{
level++;
RectangleShape upperLeft = GetUpperLeftQuater(currentBoundingBox);
RectangleShape uppperRight = GetUpperRightQuater(currentBoundingBox);
RectangleShape lowerLeft = GetLowerLeftQuater(currentBoundingBox);
RectangleShape lowerRight = GetLowerRightQuater(currentBoundingBox);
if (shapeBoundingBox.IsWithin(upperLeft))
{
currentBoundingBox = upperLeft;
}
else if (shapeBoundingBox.IsWithin(uppperRight))
{
currentBoundingBox = uppperRight;
}
else if (shapeBoundingBox.IsWithin(lowerLeft))
{
currentBoundingBox = lowerLeft;
}
else if (shapeBoundingBox.IsWithin(lowerRight))
{
currentBoundingBox = lowerRight;
}
else
{
break;
}
}
}
return level;
}
public static int GetAppropriateLevel(RectangleShape extent, BaseShape shape)
{
RectangleShape currentBoundingBox = SquaredExtent(extent);
RectangleShape shapeBoundingBox = shape.GetBoundingBox();
int level = 0;
if (shapeBoundingBox.IsWithin(currentBoundingBox))
{
while (true)
{
level++;
RectangleShape upperLeft = GetUpperLeftQuater(currentBoundingBox);
RectangleShape uppperRight = GetUpperRightQuater(currentBoundingBox);
RectangleShape lowerLeft = GetLowerLeftQuater(currentBoundingBox);
RectangleShape lowerRight = GetLowerRightQuater(currentBoundingBox);
if (shapeBoundingBox.IsWithin(upperLeft))
{
currentBoundingBox = upperLeft;
}
else if (shapeBoundingBox.IsWithin(uppperRight))
{
currentBoundingBox = uppperRight;
}
else if (shapeBoundingBox.IsWithin(lowerLeft))
{
currentBoundingBox = lowerLeft;
}
else if (shapeBoundingBox.IsWithin(lowerRight))
{
currentBoundingBox = lowerRight;
}
else
{
break;
}
}
}
return(level);
}
public static ulong GetLocation(RectangleShape extent, BaseShape shape, int level)
{
RectangleShape extentBoundingBox = SquaredExtent(extent);
RectangleShape shapeBoundingBox = shape.GetBoundingBox();
ulong location = 1;
if (shapeBoundingBox.IsWithin(extentBoundingBox))
{
int currentlevel = 1;
while (currentlevel < level)
{
RectangleShape upperLeft = GetUpperLeftQuater(extentBoundingBox);
RectangleShape uppperRight = GetUpperRightQuater(extentBoundingBox);
RectangleShape lowerLeft = GetLowerLeftQuater(extentBoundingBox);
RectangleShape lowerRight = GetLowerRightQuater(extentBoundingBox);
if (shapeBoundingBox.IsWithin(upperLeft))
{
location = (location << 1) | 1;
currentlevel++;
extentBoundingBox = upperLeft;
}
else if (shapeBoundingBox.IsWithin(uppperRight))
{
location = (location << 2) | 1;
currentlevel++;
extentBoundingBox = uppperRight;
}
else if (shapeBoundingBox.IsWithin(lowerLeft))
{
location = (location << 3) | 1;
currentlevel++;
extentBoundingBox = lowerLeft;
}
else if (shapeBoundingBox.IsWithin(lowerRight))
{
location = (location << 4) | 1;
currentlevel++;
extentBoundingBox = lowerRight;
}
else
{
break;
}
}
}
return location;
}
public static Collection<QuadCell> GetIntersectingCells(RectangleShape extent, BaseShape shape, int startLevel, int endLevel)
{
RectangleShape extentBoundingBox = SquaredExtent(extent);
RectangleShape shapeBoundingBox = shape.GetBoundingBox();
Collection<QuadCell> result = new Collection<QuadCell>();
if (shapeBoundingBox.Intersects(extentBoundingBox))
{
ulong location = GetLocation(extentBoundingBox, shape, int.MaxValue);
ulong reversedResult = Reverse(location);
ulong temporaryValue = reversedResult;
temporaryValue >>= 1;
int locationLength = GetLevelsCount(temporaryValue);
if (startLevel <= locationLength)
{
int index = startLevel;
while (index <= endLevel)
{
ulong temporaryLocation = temporaryValue;
if (index <= locationLength)
{
MovePositionByIndex(ref temporaryLocation, index);
if (locationLength > 1)
{
result.Add(GetCellByLocation(extentBoundingBox, temporaryLocation));
}
else
{
result.Add(GetCellByLocation(extentBoundingBox, 0));
}
}
index++;
}
}
if (endLevel > locationLength)
{
Queue<ulong> locationsToProcess = new Queue<ulong>();
locationsToProcess.Enqueue(location);
while (locationsToProcess.Count > 0)
{
ulong currentLocation = locationsToProcess.Dequeue();
for (int k = 1; k <= 4; k++)
{
ulong newLocation = (currentLocation << k) | 1;
result.Add(GetCellByLocation(extentBoundingBox, newLocation));
int newLocationsCount = GetLevelsCount(newLocation);
if (newLocationsCount < endLevel)
{
locationsToProcess.Enqueue(newLocation);
}
}
}
}
}
//if (result.Count == 0)
//{
// result.Add(GetCellByLocation(extentBoundingBox, "01"));
// result.Add(GetCellByLocation(extentBoundingBox, "02"));
// result.Add(GetCellByLocation(extentBoundingBox, "03"));
// result.Add(GetCellByLocation(extentBoundingBox, "04"));
//}
return result;
}
public static Collection <QuadCell> GetIntersectingCells(RectangleShape extent, BaseShape shape, int startLevel, int endLevel)
{
RectangleShape extentBoundingBox = SquaredExtent(extent);
RectangleShape shapeBoundingBox = shape.GetBoundingBox();
Collection <QuadCell> result = new Collection <QuadCell>();
if (shapeBoundingBox.Intersects(extentBoundingBox))
{
ulong location = GetLocation(extentBoundingBox, shape, int.MaxValue);
ulong reversedResult = Reverse(location);
ulong temporaryValue = reversedResult;
temporaryValue >>= 1;
int locationLength = GetLevelsCount(temporaryValue);
if (startLevel <= locationLength)
{
int index = startLevel;
while (index <= endLevel)
{
ulong temporaryLocation = temporaryValue;
if (index <= locationLength)
{
MovePositionByIndex(ref temporaryLocation, index);
if (locationLength > 1)
{
result.Add(GetCellByLocation(extentBoundingBox, temporaryLocation));
}
else
{
result.Add(GetCellByLocation(extentBoundingBox, 0));
}
}
index++;
}
}
if (endLevel > locationLength)
{
Queue <ulong> locationsToProcess = new Queue <ulong>();
locationsToProcess.Enqueue(location);
while (locationsToProcess.Count > 0)
{
ulong currentLocation = locationsToProcess.Dequeue();
for (int k = 1; k <= 4; k++)
{
ulong newLocation = (currentLocation << k) | 1;
result.Add(GetCellByLocation(extentBoundingBox, newLocation));
int newLocationsCount = GetLevelsCount(newLocation);
if (newLocationsCount < endLevel)
{
locationsToProcess.Enqueue(newLocation);
}
}
}
}
}
//if (result.Count == 0)
//{
// result.Add(GetCellByLocation(extentBoundingBox, "01"));
// result.Add(GetCellByLocation(extentBoundingBox, "02"));
// result.Add(GetCellByLocation(extentBoundingBox, "03"));
// result.Add(GetCellByLocation(extentBoundingBox, "04"));
//}
return(result);
}
