public static Tile GetNewTile(IImageSet imageset, int level, int x, int y, Tile parent)
{
switch (imageset.Projection)
{
case ProjectionType.Mercator:
{
MercatorTile newTile = new MercatorTile(level, x, y, imageset, parent);
return(newTile);
}
case ProjectionType.Equirectangular:
{
return(new EquirectangularTile(level, x, y, imageset, parent));
}
case ProjectionType.Spherical:
{
return(new SphericalTile(level, x, y, imageset, parent));
}
case ProjectionType.Toast:
{
return(new ToastTile(level, x, y, imageset, parent));
}
case ProjectionType.SkyImage:
{
return(new SkyImageTile(level, x, y, imageset, parent));
}
case ProjectionType.Plotted:
{
return(new PlotTile(level, x, y, imageset, parent));
}
default:
case ProjectionType.Tangent:
{
TangentTile newTile = new TangentTile(level, x, y, imageset, parent);
return(newTile);
}
}
}
protected void ComputeBoundingSphere(MercatorTile parent, double altitude)
{
var tileDegrees = 360 / (Math.Pow(2, level));
latMin = AbsoluteMetersToLatAtZoom(y * 256, level);
latMax = AbsoluteMetersToLatAtZoom((y + 1) * 256, level);
lngMin = ((x * tileDegrees) - 180.0);
lngMax = (((x + 1) * tileDegrees) - 180.0);
var latCenter = AbsoluteMetersToLatAtZoom(((y * 2) + 1) * 256, level + 1);
var lngCenter = (lngMin + lngMax) / 2.0;
if (level == 12 || level == 17 )
{
localCenter = Coordinates.GeoTo3dDouble(latCenter, lngCenter);
}
else if (level > 12)
{
localCenter = parent.localCenter;
}
demIndex = 0;
if (parent != null && parent.DemData != null)
{
sphereCenter = GeoTo3dWithAltitude(latCenter, lngCenter, parent.GetAltitudeAtLatLng(latCenter, lngCenter, 1), false);
TopLeft = GeoTo3dWithAltitude(latMin, lngMin, parent.GetAltitudeAtLatLng(latMin, lngMin, 1), false);
BottomRight = GeoTo3dWithAltitude(latMax, lngMax, parent.GetAltitudeAtLatLng(latMax, lngMax, 1), false);
TopRight = GeoTo3dWithAltitude(latMin, lngMax, parent.GetAltitudeAtLatLng(latMin, lngMax, 1), false);
BottomLeft = GeoTo3dWithAltitude(latMax, lngMin, parent.GetAltitudeAtLatLng(latMax, lngMin, 1), false);
}
else
{
sphereCenter = GeoTo3dWithAltitude(latCenter, lngCenter, altitude, false);
TopLeft = GeoTo3dWithAltitude(latMin, lngMin, altitude, false);
BottomRight = GeoTo3dWithAltitude(latMax, lngMax, altitude, false);
TopRight = GeoTo3dWithAltitude(latMin, lngMax, altitude, false);
BottomLeft = GeoTo3dWithAltitude(latMax, lngMin, altitude, false);
}
center = sphereCenter;
if (Y == 0)
{
TopLeft = new Vector3d(0, 1, 0);
TopRight = new Vector3d(0, 1, 0);
}
if (Y == Math.Pow(2, level) - 1)
{
BottomRight = new Vector3d(0, -1, 0);
BottomLeft = new Vector3d(0, -1, 0);
}
var distVect1 = TopLeft;
distVect1.Subtract(sphereCenter);
var distVect2 = BottomRight;
distVect2.Subtract(sphereCenter);
var distVect3 = TopRight;
distVect3.Subtract(sphereCenter);
var distVect4 = BottomLeft;
distVect4.Subtract(sphereCenter);
sphereRadius = Math.Max(Math.Max(distVect1.Length(),distVect2.Length()),Math.Max(distVect3.Length(),distVect4.Length()));
tileDegrees = lngMax - lngMin;
// if (level > 14)
{
// this.sphereCenter.Add(localCenter);
}
}
public static Tile GetNewTile(IImageSet imageset, int level, int x, int y, Tile parent)
{
switch (imageset.Projection)
{
case ProjectionType.Mercator:
{
var newTile = new MercatorTile(level, x, y, imageset, parent);
return newTile;
}
case ProjectionType.Equirectangular:
{
return new EquirectangularTile(level, x, y, imageset, parent);
}
case ProjectionType.Spherical:
{
return new SphericalTile(level, x, y, imageset, parent);
}
case ProjectionType.Toast:
{
return new ToastTile(level, x, y, imageset, parent);
}
case ProjectionType.SkyImage:
{
return new SkyImageTile(level, x, y, imageset, parent);
}
case ProjectionType.Plotted:
{
return new PlotTile(level, x, y, imageset, parent);
}
default:
case ProjectionType.Tangent:
{
var newTile = new TangentTile(level, x, y, imageset, parent);
return newTile;
}
}
}
public override bool CreateDemFromParent()
{
MercatorTile parent = Parent as MercatorTile;
if (parent == null || parent.DemData == null)
{
return(false);
}
DemGeneration = parent.DemGeneration + 1;
if (DemGeneration < 4 && parent.isHdTile)
{
if (MakeDemFromHDParent())
{
return(true);
}
}
int offsetX = ((X % 2) == 1 ? 16:0);
int offsetY = ((Y % 2) == 1 ? 16:0);
DemData = new double[demSize];
// Interpolate accross
for (int y = 0; y < 33; y += 2)
{
bool copy = true;
for (int x = 0; x < 33; x++)
{
if (copy)
{
DemData[(32 - y) * 33 + x] = parent.GetDemSample((x / 2) + offsetX, (y / 2) + offsetY);
}
else
{
DemData[(32 - y) * 33 + x] =
(
(
parent.GetDemSample((x / 2) + offsetX, (y / 2) + offsetY) +
parent.GetDemSample(((x / 2) + offsetX) + 1, (y / 2) + offsetY)
) / 2);
}
copy = !copy;
}
}
// Interpolate down
for (int y = 1; y < 33; y += 2)
{
for (int x = 0; x < 33; x++)
{
DemData[(32 - y) * 33 + x] =
(
(
GetDemSample(x, y - 1) +
GetDemSample(x, y + 1)
) / 2);
}
}
foreach (double sample in DemData)
{
demAverage += sample;
}
demAverage /= DemData.Length;
DemReady = true;
return(true);
}
protected void ComputeBoundingSphere(MercatorTile parent, double altitude)
{
double tileDegrees = 360 / (Math.Pow(2, this.level));
latMin = AbsoluteMetersToLatAtZoom(y * 256, level);
latMax = AbsoluteMetersToLatAtZoom((y + 1) * 256, level);
lngMin = (((double)this.x * tileDegrees) - 180.0);
lngMax = ((((double)(this.x + 1)) * tileDegrees) - 180.0);
double latCenter = AbsoluteMetersToLatAtZoom(((y * 2) + 1) * 256, level + 1);
double lngCenter = (lngMin + lngMax) / 2.0;
if (level == 12 || level == 17)
{
localCenter = Coordinates.GeoTo3dDouble(latCenter, lngCenter);
}
else if (level > 12)
{
localCenter = parent.localCenter;
}
demIndex = 0;
if (parent != null && parent.DemData != null)
{
this.sphereCenter = GeoTo3dWithAltitude(latCenter, lngCenter, parent.GetAltitudeAtLatLng(latCenter, lngCenter, 1), false);
TopLeft = GeoTo3dWithAltitude(latMin, lngMin, parent.GetAltitudeAtLatLng(latMin, lngMin, 1), false);
BottomRight = GeoTo3dWithAltitude(latMax, lngMax, parent.GetAltitudeAtLatLng(latMax, lngMax, 1), false);
TopRight = GeoTo3dWithAltitude(latMin, lngMax, parent.GetAltitudeAtLatLng(latMin, lngMax, 1), false);
BottomLeft = GeoTo3dWithAltitude(latMax, lngMin, parent.GetAltitudeAtLatLng(latMax, lngMin, 1), false);
}
else
{
this.sphereCenter = GeoTo3dWithAltitude(latCenter, lngCenter, altitude, false);
TopLeft = GeoTo3dWithAltitude(latMin, lngMin, altitude, false);
BottomRight = GeoTo3dWithAltitude(latMax, lngMax, altitude, false);
TopRight = GeoTo3dWithAltitude(latMin, lngMax, altitude, false);
BottomLeft = GeoTo3dWithAltitude(latMax, lngMin, altitude, false);
}
center = sphereCenter;
if (Y == 0)
{
TopLeft = new Vector3d(0, 1, 0);
TopRight = new Vector3d(0, 1, 0);
}
if (Y == Math.Pow(2, level) - 1)
{
BottomRight = new Vector3d(0, -1, 0);
BottomLeft = new Vector3d(0, -1, 0);
}
Vector3d distVect1 = TopLeft;
distVect1.Subtract(sphereCenter);
Vector3d distVect2 = BottomRight;
distVect2.Subtract(sphereCenter);
Vector3d distVect3 = TopRight;
distVect3.Subtract(sphereCenter);
Vector3d distVect4 = BottomLeft;
distVect4.Subtract(sphereCenter);
this.sphereRadius = Math.Max(Math.Max(distVect1.Length(), distVect2.Length()), Math.Max(distVect3.Length(), distVect4.Length()));
tileDegrees = lngMax - lngMin;
// if (level > 14)
{
// this.sphereCenter.Add(localCenter);
}
}