private RectangularTileIndex GetTileIndexAt(
double locationX, double locationY,
BorderPointTileAllocationPolicy borderPointTileAllocation)
{
return(RectangularTilingUtils.GetTileIndex(locationX, locationY,
OriginX, OriginY,
TileWidth, TileHeight,
borderPointTileAllocation));
}
public static RectangularTileIndex GetTileIndex(
double locationX, double locationY,
double originX, double originY,
double tileWidth, double tileHeight,
BorderPointTileAllocationPolicy borderPointTileAllocation)
{
int indexEast;
int indexNorth;
double tilePositionX = (locationX - originX) / tileWidth;
double tilePositionY = (locationY - originY) / tileHeight;
switch (borderPointTileAllocation)
{
case BorderPointTileAllocationPolicy.BottomLeft:
indexEast = GetIntegerIndex(tilePositionX,
AllocationPolicy1D.ExcludeUpperBound);
indexNorth = GetIntegerIndex(tilePositionY,
AllocationPolicy1D.ExcludeUpperBound);
break;
case BorderPointTileAllocationPolicy.TopLeft:
indexEast = GetIntegerIndex(tilePositionX,
AllocationPolicy1D.ExcludeUpperBound);
indexNorth = GetIntegerIndex(tilePositionY,
AllocationPolicy1D.IncludeUpperBound);
break;
case BorderPointTileAllocationPolicy.TopRight:
indexEast = GetIntegerIndex(tilePositionX,
AllocationPolicy1D.IncludeUpperBound);
indexNorth = GetIntegerIndex(tilePositionY,
AllocationPolicy1D.IncludeUpperBound);
break;
case BorderPointTileAllocationPolicy.BottomRight:
indexEast = GetIntegerIndex(tilePositionX,
AllocationPolicy1D.IncludeUpperBound);
indexNorth = GetIntegerIndex(tilePositionY,
AllocationPolicy1D.ExcludeUpperBound);
break;
default:
throw new ArgumentOutOfRangeException(
nameof(borderPointTileAllocation),
borderPointTileAllocation,
@"Unexpected value");
}
return(new RectangularTileIndex(indexEast, indexNorth));
}
public RectangularTilingStructure(
double originX, double originY,
double tileWidth, double tileHeight,
BorderPointTileAllocationPolicy borderPointTileAllocation,
[CanBeNull] ISpatialReference spatialReference)
{
OriginX = originX;
OriginY = originY;
TileWidth = tileWidth;
TileHeight = tileHeight;
BorderPointTileAllocation = borderPointTileAllocation;
SpatialReference = spatialReference;
}
