private ShapeTile ComputeChild(DrawArgs drawArgs, double childSouth, double childNorth, double childWest, double childEast, double tileSize)
{
ShapeTile child = new ShapeTile(
new GeographicBoundingBox(childNorth, childSouth, childWest, childEast),
m_ShapeTileArgs);
return(child);
}
public virtual void ComputeChildren(DrawArgs drawArgs)
{
float tileSize = (float)(0.5 * (m_GeoBB.North - m_GeoBB.South));
//TODO: Stop children computation at some lower level
if (tileSize > 0.0001)
{
double CenterLat = 0.5f * (m_GeoBB.North + m_GeoBB.South);
double CenterLon = 0.5f * (m_GeoBB.East + m_GeoBB.West);
if (m_NorthWestChild == null && m_NwImageLayer != null && m_Initialized)
{
m_NorthWestChild = ComputeChild(drawArgs, CenterLat, m_GeoBB.North, m_GeoBB.West, CenterLon, tileSize);
m_NorthWestChild.Level = Level++;
m_NorthWestChild.Row = 2 * Row + 1;
m_NorthWestChild.Col = 2 * Col;
m_NorthWestChild.Initialize(drawArgs);
}
if (m_NorthEastChild == null && m_NeImageLayer != null && m_Initialized)
{
m_NorthEastChild = ComputeChild(drawArgs, CenterLat, m_GeoBB.North, CenterLon, m_GeoBB.East, tileSize);
m_NorthEastChild.Level = Level++;
m_NorthEastChild.Row = 2 * Row + 1;
m_NorthEastChild.Col = 2 * Col + 1;
m_NorthEastChild.Initialize(drawArgs);
}
if (m_SouthWestChild == null && m_SwImageLayer != null && m_Initialized)
{
m_SouthWestChild = ComputeChild(drawArgs, m_GeoBB.South, CenterLat, m_GeoBB.West, CenterLon, tileSize);
m_SouthWestChild.Level = Level++;
m_SouthWestChild.Row = 2 * Row;
m_SouthWestChild.Col = 2 * Col;
m_SouthWestChild.Initialize(drawArgs);
}
if (m_SouthEastChild == null && m_SeImageLayer != null && m_Initialized)
{
m_SouthEastChild = ComputeChild(drawArgs, m_GeoBB.South, CenterLat, CenterLon, m_GeoBB.East, tileSize);
m_SouthEastChild.Level = Level++;
m_SouthEastChild.Row = 2 * Row;
m_SouthEastChild.Col = 2 * Col + 1;
m_SouthEastChild.Initialize(drawArgs);
}
}
}
public ShapeFileLayer(
string id,
World parentWorld,
string shapeFilePath,
double minimumViewingAltitude,
double maximumViewingAltitude,
float lztsd,
GeographicBoundingBox bounds,
string dataKey,
bool scaleColorsToData,
double scalarFilterMin,
double scalarFilterMax,
double scaleMin,
double scaleMax,
string[] noDataValues,
string[] activeDataValues,
bool polygonFill,
bool outlinePolygons,
System.Drawing.Color polygonFillColor,
ShapeFillStyle shapeFillHatchStyle,
System.Drawing.Color lineColor,
float lineWidth,
bool showLabels,
System.Drawing.Color labelColor,
string iconFilePath,
int iconWidth,
int iconHeight,
byte iconOpacity) : base(id, parentWorld.Position, parentWorld.Orientation)
{
this.RenderPriority = WorldWind.Renderable.RenderPriority.LinePaths;
m_MinimumViewingAltitude = minimumViewingAltitude;
m_MaximumViewingAltitude = maximumViewingAltitude;
m_lztsd = lztsd;
m_ShapeTileArgs = new ShapeTileArgs(
parentWorld,
new System.Drawing.Size(256, 256),
parentWorld.EquatorialRadius,
this,
dataKey,
scaleColorsToData,
scaleMin,
scaleMax,
noDataValues,
activeDataValues,
polygonFill,
outlinePolygons,
polygonFillColor,
shapeFillHatchStyle,
lineColor,
labelColor,
lineWidth,
showLabels
);
m_ScalarFilterMin = scalarFilterMin;
m_ScalarFilterMax = scalarFilterMax;
m_ShapeFilePath = shapeFilePath;
m_IconFilePath = iconFilePath;
m_IconWidth = iconWidth;
m_IconHeight = iconHeight;
m_IconOpacity = iconOpacity;
/*Produces tile tree for whole earth*/
/*Need to implement clipping*/
m_NumberRootTilesHigh = (int)(180.0f/m_lztsd);
double tileSize = 180.0f/m_NumberRootTilesHigh;
m_RootTiles = new ShapeTile[m_NumberRootTilesHigh * (m_NumberRootTilesHigh * 2)];
System.Console.WriteLine("North:{0} South:{1} East:{2} West:{3}",
bounds.North,bounds.South,bounds.East,bounds.West);
int istart = 0;
int iend = m_NumberRootTilesHigh;
int jstart = 0;
int jend = m_NumberRootTilesHigh * 2;
int createdtiles = 0;
for(int i = istart; i < iend; i++)
{
for(int j = jstart; j < jend; j++)
{
double north = (i + 1) * tileSize - 90.0f;
double south = i * tileSize - 90.0f;
double west = j * tileSize - 180.0f;
double east = (j + 1) * tileSize - 180.0f;
m_RootTiles[i * m_NumberRootTilesHigh * 2 + j] = new ShapeTile(
new GeographicBoundingBox(
north,
south,
west,
east),
m_ShapeTileArgs);
createdtiles++;
}
}
Console.WriteLine("Created Tiles "+createdtiles);
}
public void Update(DrawArgs drawArgs)
{
try
{
double centerLatitude = 0.5 * (m_GeoBB.North + m_GeoBB.South);
double centerLongitude = 0.5 * (m_GeoBB.West + m_GeoBB.East);
double tileSize = m_GeoBB.North - m_GeoBB.South;
if(!m_Initialized)
{
if(drawArgs.WorldCamera.ViewRange * 0.5f < Angle.FromDegrees(ShapeTileArgs.TileDrawDistance * tileSize)
&& MathEngine.SphericalDistance(Angle.FromDegrees(centerLatitude), Angle.FromDegrees(centerLongitude),
drawArgs.WorldCamera.Latitude, drawArgs.WorldCamera.Longitude) < Angle.FromDegrees( ShapeTileArgs.TileSpreadFactor * tileSize * 1.25f )
&& drawArgs.WorldCamera.ViewFrustum.Intersects(BoundingBox)
)
{
Initialize(drawArgs);
}
}
if(m_Initialized)
{
if(m_NwImageLayer != null)
{
m_NwImageLayer.Update(drawArgs);
}
if(m_NeImageLayer != null)
{
m_NeImageLayer.Update(drawArgs);
}
if(m_SwImageLayer != null)
{
m_SwImageLayer.Update(drawArgs);
}
if(m_SeImageLayer != null)
{
m_SeImageLayer.Update(drawArgs);
}
if(
drawArgs.WorldCamera.ViewRange < Angle.FromDegrees(ShapeTileArgs.TileDrawDistance*tileSize) &&
MathEngine.SphericalDistance( Angle.FromDegrees(centerLatitude), Angle.FromDegrees(centerLongitude),
drawArgs.WorldCamera.Latitude, drawArgs.WorldCamera.Longitude) < Angle.FromDegrees( ShapeTileArgs.TileSpreadFactor*tileSize )
&& drawArgs.WorldCamera.ViewFrustum.Intersects(BoundingBox)
)
{
if(m_NorthEastChild == null && m_NorthWestChild == null && m_SouthEastChild == null && m_SouthWestChild == null)
{
ComputeChildren(drawArgs);
}
else
{
if(m_NorthEastChild != null)
{
m_NorthEastChild.Update(drawArgs);
}
if(m_NorthWestChild != null)
{
m_NorthWestChild.Update(drawArgs);
}
if(m_SouthEastChild != null)
{
m_SouthEastChild.Update(drawArgs);
}
if(m_SouthWestChild != null)
{
m_SouthWestChild.Update(drawArgs);
}
}
}
else
{
if(m_NorthWestChild != null)
{
m_NorthWestChild.Dispose();
m_NorthWestChild = null;
}
if(m_NorthEastChild != null)
{
m_NorthEastChild.Dispose();
m_NorthEastChild = null;
}
if(m_SouthEastChild != null)
{
m_SouthEastChild.Dispose();
m_SouthEastChild = null;
}
if(m_SouthWestChild != null)
{
m_SouthWestChild.Dispose();
m_SouthWestChild = null;
}
}
}
if(m_Initialized)
{
if(drawArgs.WorldCamera.ViewRange > Angle.FromDegrees( ShapeTileArgs.TileDrawDistance*tileSize*1.5f )
|| MathEngine.SphericalDistance(Angle.FromDegrees(centerLatitude), Angle.FromDegrees(centerLongitude), drawArgs.WorldCamera.Latitude, drawArgs.WorldCamera.Longitude) > Angle.FromDegrees( ShapeTileArgs.TileSpreadFactor*tileSize*1.5f ))
{
//if(this.level != 0)
//{
Dispose();
//}
}
}
}
catch(Exception ex)
{
Log.Write(ex);
}
}
public virtual void ComputeChildren(DrawArgs drawArgs)
{
float tileSize = (float)(0.5*(m_GeoBB.North - m_GeoBB.South));
//TODO: Stop children computation at some lower level
if(tileSize>0.0001)
{
double CenterLat = 0.5f*(m_GeoBB.North + m_GeoBB.South);
double CenterLon = 0.5f*(m_GeoBB.East + m_GeoBB.West);
if(m_NorthWestChild == null && m_NwImageLayer != null && m_Initialized)
{
m_NorthWestChild = ComputeChild(drawArgs, CenterLat, m_GeoBB.North, m_GeoBB.West, CenterLon, tileSize );
m_NorthWestChild.Initialize(drawArgs);
}
if(m_NorthEastChild == null && m_NeImageLayer != null && m_Initialized)
{
m_NorthEastChild = ComputeChild(drawArgs, CenterLat, m_GeoBB.North, CenterLon, m_GeoBB.East, tileSize );
m_NorthEastChild.Initialize(drawArgs);
}
if(m_SouthWestChild == null && m_SwImageLayer != null && m_Initialized)
{
m_SouthWestChild = ComputeChild(drawArgs, m_GeoBB.South, CenterLat, m_GeoBB.West, CenterLon, tileSize );
m_SouthWestChild.Initialize(drawArgs);
}
if(m_SouthEastChild == null && m_SeImageLayer != null && m_Initialized)
{
m_SouthEastChild = ComputeChild(drawArgs, m_GeoBB.South, CenterLat, CenterLon, m_GeoBB.East, tileSize );
m_SouthEastChild.Initialize(drawArgs);
}
}
}
private ShapeTile ComputeChild( DrawArgs drawArgs, double childSouth, double childNorth, double childWest, double childEast, double tileSize )
{
ShapeTile child = new ShapeTile(
new GeographicBoundingBox(childNorth, childSouth, childWest, childEast),
m_ShapeTileArgs);
return child;
}
public void Update(DrawArgs drawArgs)
{
try
{
double centerLatitude = 0.5 * (m_GeoBB.North + m_GeoBB.South);
double centerLongitude = 0.5 * (m_GeoBB.West + m_GeoBB.East);
double tileSize = m_GeoBB.North - m_GeoBB.South;
if (!m_Initialized)
{
if (drawArgs.WorldCamera.ViewRange * 0.5f < Angle.FromDegrees(ShapeTileArgs.TileDrawDistance * tileSize) &&
MathEngine.SphericalDistance(Angle.FromDegrees(centerLatitude), Angle.FromDegrees(centerLongitude),
drawArgs.WorldCamera.Latitude, drawArgs.WorldCamera.Longitude) < Angle.FromDegrees(ShapeTileArgs.TileSpreadFactor * tileSize * 1.25f) &&
drawArgs.WorldCamera.ViewFrustum.Intersects(BoundingBox)
)
{
Initialize(drawArgs);
}
}
if (m_Initialized)
{
if (m_NwImageLayer != null)
{
m_NwImageLayer.Update(drawArgs);
}
if (m_NeImageLayer != null)
{
m_NeImageLayer.Update(drawArgs);
}
if (m_SwImageLayer != null)
{
m_SwImageLayer.Update(drawArgs);
}
if (m_SeImageLayer != null)
{
m_SeImageLayer.Update(drawArgs);
}
if (
drawArgs.WorldCamera.ViewRange < Angle.FromDegrees(ShapeTileArgs.TileDrawDistance * tileSize) &&
MathEngine.SphericalDistance(Angle.FromDegrees(centerLatitude), Angle.FromDegrees(centerLongitude),
drawArgs.WorldCamera.Latitude, drawArgs.WorldCamera.Longitude) < Angle.FromDegrees(ShapeTileArgs.TileSpreadFactor * tileSize) &&
drawArgs.WorldCamera.ViewFrustum.Intersects(BoundingBox)
)
{
if (m_NorthEastChild == null && m_NorthWestChild == null && m_SouthEastChild == null && m_SouthWestChild == null)
{
ComputeChildren(drawArgs);
}
else
{
if (m_NorthEastChild != null)
{
m_NorthEastChild.Update(drawArgs);
}
if (m_NorthWestChild != null)
{
m_NorthWestChild.Update(drawArgs);
}
if (m_SouthEastChild != null)
{
m_SouthEastChild.Update(drawArgs);
}
if (m_SouthWestChild != null)
{
m_SouthWestChild.Update(drawArgs);
}
}
}
else
{
if (m_NorthWestChild != null)
{
m_NorthWestChild.Dispose();
m_NorthWestChild = null;
}
if (m_NorthEastChild != null)
{
m_NorthEastChild.Dispose();
m_NorthEastChild = null;
}
if (m_SouthEastChild != null)
{
m_SouthEastChild.Dispose();
m_SouthEastChild = null;
}
if (m_SouthWestChild != null)
{
m_SouthWestChild.Dispose();
m_SouthWestChild = null;
}
}
}
if (m_Initialized)
{
if (drawArgs.WorldCamera.ViewRange > Angle.FromDegrees(ShapeTileArgs.TileDrawDistance * tileSize * 1.5f) ||
MathEngine.SphericalDistance(Angle.FromDegrees(centerLatitude), Angle.FromDegrees(centerLongitude), drawArgs.WorldCamera.Latitude, drawArgs.WorldCamera.Longitude) > Angle.FromDegrees(ShapeTileArgs.TileSpreadFactor * tileSize * 1.5f))
{
//if(this.level != 0)
//{
Dispose();
//}
}
}
}
catch (Exception ex)
{
Utility.Log.Write(ex);
}
}
