public void TestGetHashCode()
{
Geodetic2D a = new Geodetic2D(1.0, 2.0);
Geodetic2D b = new Geodetic2D(2.0, 3.0);
Geodetic2D c = new Geodetic2D(2.0, 3.0);
Assert.AreEqual(b.GetHashCode(), c.GetHashCode());
Assert.AreNotEqual(a.GetHashCode(), b.GetHashCode());
Assert.AreNotEqual(a.GetHashCode(), c.GetHashCode());
}
public bool testwindowsCoordOnEllipse(Vector2 pos, out Geodetic2D geo)
{
var rayVector = Unproject(new Vector3(pos.X, this._windowHeight - pos.Y, 0), this.ProjectionMatrix, this.ViewMatrix, Matrix4x4.Identity);
//此rayVector为近裁剪面的世界坐标，与eye相减得到ray向量，ray向量与地球求交即可得到结果
//计算是否与地球有交
var rayDir = rayVector - _positon;
var result = Shape.Intersections(_positon, rayDir);
//计算第一个相交点的世界坐标
if (result.Length != 0)
{
Vector3 deta = Vector3.Normalize(rayDir) * (float)result[0];
Vector3 position = _positon + deta;
geo = Shape.ToGeodetic2D(position);
return(true);
}
geo = new Geodetic2D();
return(false);
}
public void TestEquals()
{
Geodetic2D a = new Geodetic2D(1.0, 2.0);
Geodetic2D b = new Geodetic2D(2.0, 3.0);
Geodetic2D c = new Geodetic2D(2.0, 3.0);
object objA = a;
object objB = b;
object objC = c;
Assert.IsTrue(a.Equals(a));
Assert.IsTrue(b.Equals(c));
Assert.IsTrue(a.Equals(objA));
Assert.IsTrue(b.Equals(objC));
Assert.IsTrue(objA.Equals(objA));
Assert.IsTrue(objB.Equals(objC));
Assert.IsTrue(b == c);
Assert.IsTrue(c == b);
Assert.IsTrue(a != b);
Assert.IsFalse(a.Equals(b));
Assert.IsFalse(a.Equals(c));
Assert.IsFalse(a.Equals(objB));
Assert.IsFalse(a.Equals(objC));
Assert.IsFalse(objA.Equals(objB));
Assert.IsFalse(objA.Equals(objC));
Assert.IsFalse(a == b);
Assert.IsFalse(a == c);
Assert.IsFalse(b != c);
Assert.IsFalse(a.Equals(null));
Assert.IsFalse(a.Equals(5));
}
public void PreRender(Context context, SceneState sceneState)
{
if (!_lodUpdateEnabled)
return;
_clipmapCenter = _ellipsoid.ToGeodetic3D(sceneState.Camera.Eye);
//Geodetic2D center = Ellipsoid.ScaledWgs84.ToGeodetic2D(sceneState.Camera.Target / Ellipsoid.Wgs84.MaximumRadius);
Geodetic2D center = new Geodetic2D(_clipmapCenter.Longitude, _clipmapCenter.Latitude);
double centerLongitude = Trig.ToDegrees(center.Longitude);
double centerLatitude = Trig.ToDegrees(center.Latitude);
ClipmapLevel level = _clipmapLevels[_clipmapLevels.Length - 1];
double longitudeIndex = level.Terrain.LongitudeToIndex(centerLongitude);
double latitudeIndex = level.Terrain.LatitudeToIndex(centerLatitude);
double imageryLongitudeIndex = level.Imagery.LongitudeToIndex(centerLongitude);
double imageryLatitudeIndex = level.Imagery.LatitudeToIndex(centerLatitude);
int west = (int)(longitudeIndex - _clipmapPosts / 2);
if ((west % 2) != 0)
{
++west;
}
int south = (int)(latitudeIndex - _clipmapPosts / 2);
if ((south % 2) != 0)
{
++south;
}
int imageryWest = (int)(imageryLongitudeIndex - level.ImageryWidth / 2);
int imagerySouth = (int)(imageryLatitudeIndex - level.ImageryHeight / 2);
level.NextExtent.West = west;
level.NextExtent.East = west + _clipmapSegments;
level.NextExtent.South = south;
level.NextExtent.North = south + _clipmapSegments;
level.NextImageryExtent.West = imageryWest;
level.NextImageryExtent.East = imageryWest + level.ImageryWidth;
level.NextImageryExtent.South = imagerySouth;
level.NextImageryExtent.North = imagerySouth + level.ImageryHeight;
UpdateOriginInTextures(level);
UpdateImageryOriginInTextures(level);
for (int i = _clipmapLevels.Length - 2; i >= 0; --i)
{
level = _clipmapLevels[i];
ClipmapLevel finerLevel = _clipmapLevels[i + 1];
// Terrain
level.NextExtent.West = finerLevel.NextExtent.West / 2 - _fillPatchSegments;
level.OffsetStripOnEast = (level.NextExtent.West % 2) == 0;
if (!level.OffsetStripOnEast)
{
--level.NextExtent.West;
}
level.NextExtent.East = level.NextExtent.West + _clipmapSegments;
level.NextExtent.South = finerLevel.NextExtent.South / 2 - _fillPatchSegments;
level.OffsetStripOnNorth = (level.NextExtent.South % 2) == 0;
if (!level.OffsetStripOnNorth)
{
--level.NextExtent.South;
}
level.NextExtent.North = level.NextExtent.South + _clipmapSegments;
// Imagery
imageryWest = (int)level.Imagery.LongitudeToIndex(level.Terrain.IndexToLongitude(level.NextExtent.West));
imagerySouth = (int)level.Imagery.LatitudeToIndex(level.Terrain.IndexToLatitude(level.NextExtent.South));
level.NextImageryExtent.West = imageryWest;
level.NextImageryExtent.East = imageryWest + level.ImageryWidth - 1;
level.NextImageryExtent.South = imagerySouth;
level.NextImageryExtent.North = imagerySouth + level.ImageryHeight - 1;
UpdateOriginInTextures(level);
UpdateImageryOriginInTextures(level);
}
_updater.ApplyNewData(context);
for (int i = 0; i <_clipmapLevels.Length; ++i)
{
ClipmapLevel thisLevel = _clipmapLevels[i];
ClipmapLevel coarserLevel = _clipmapLevels[i > 0 ? i - 1 : 0];
_updater.RequestTileResidency(context, thisLevel);
UpdateTerrain(thisLevel, coarserLevel, context, sceneState);
UpdateImagery(thisLevel, coarserLevel, context, sceneState);
}
}
public Vector3D ToVector3D(Geodetic2D geodetic)
{
return ToVector3D(new Geodetic3D(geodetic.Longitude, geodetic.Latitude, 0.0));
}
public static Geodetic2D ToDegrees(Geodetic2D geodetic)
{
return new Geodetic2D(ToDegrees(geodetic.Longitude), ToDegrees(geodetic.Latitude));
}
public void PreRender(Context context, SceneState sceneState)
{
if (!_lodUpdateEnabled)
{
return;
}
_clipmapCenter = _ellipsoid.ToGeodetic3D(sceneState.Camera.Eye);
//Geodetic2D center = Ellipsoid.ScaledWgs84.ToGeodetic2D(sceneState.Camera.Target / Ellipsoid.Wgs84.MaximumRadius);
Geodetic2D center = new Geodetic2D(_clipmapCenter.Longitude, _clipmapCenter.Latitude);
double centerLongitude = Trig.ToDegrees(center.Longitude);
double centerLatitude = Trig.ToDegrees(center.Latitude);
ClipmapLevel level = _clipmapLevels[_clipmapLevels.Length - 1];
double longitudeIndex = level.Terrain.LongitudeToIndex(centerLongitude);
double latitudeIndex = level.Terrain.LatitudeToIndex(centerLatitude);
double imageryLongitudeIndex = level.Imagery.LongitudeToIndex(centerLongitude);
double imageryLatitudeIndex = level.Imagery.LatitudeToIndex(centerLatitude);
int west = (int)(longitudeIndex - _clipmapPosts / 2);
if ((west % 2) != 0)
{
++west;
}
int south = (int)(latitudeIndex - _clipmapPosts / 2);
if ((south % 2) != 0)
{
++south;
}
int imageryWest = (int)(imageryLongitudeIndex - level.ImageryWidth / 2);
int imagerySouth = (int)(imageryLatitudeIndex - level.ImageryHeight / 2);
level.NextExtent.West = west;
level.NextExtent.East = west + _clipmapSegments;
level.NextExtent.South = south;
level.NextExtent.North = south + _clipmapSegments;
level.NextImageryExtent.West = imageryWest;
level.NextImageryExtent.East = imageryWest + level.ImageryWidth;
level.NextImageryExtent.South = imagerySouth;
level.NextImageryExtent.North = imagerySouth + level.ImageryHeight;
UpdateOriginInTextures(level);
UpdateImageryOriginInTextures(level);
for (int i = _clipmapLevels.Length - 2; i >= 0; --i)
{
level = _clipmapLevels[i];
ClipmapLevel finerLevel = _clipmapLevels[i + 1];
// Terrain
level.NextExtent.West = finerLevel.NextExtent.West / 2 - _fillPatchSegments;
level.OffsetStripOnEast = (level.NextExtent.West % 2) == 0;
if (!level.OffsetStripOnEast)
{
--level.NextExtent.West;
}
level.NextExtent.East = level.NextExtent.West + _clipmapSegments;
level.NextExtent.South = finerLevel.NextExtent.South / 2 - _fillPatchSegments;
level.OffsetStripOnNorth = (level.NextExtent.South % 2) == 0;
if (!level.OffsetStripOnNorth)
{
--level.NextExtent.South;
}
level.NextExtent.North = level.NextExtent.South + _clipmapSegments;
// Imagery
imageryWest = (int)level.Imagery.LongitudeToIndex(level.Terrain.IndexToLongitude(level.NextExtent.West));
imagerySouth = (int)level.Imagery.LatitudeToIndex(level.Terrain.IndexToLatitude(level.NextExtent.South));
level.NextImageryExtent.West = imageryWest;
level.NextImageryExtent.East = imageryWest + level.ImageryWidth - 1;
level.NextImageryExtent.South = imagerySouth;
level.NextImageryExtent.North = imagerySouth + level.ImageryHeight - 1;
UpdateOriginInTextures(level);
UpdateImageryOriginInTextures(level);
}
_updater.ApplyNewData(context);
for (int i = 0; i < _clipmapLevels.Length; ++i)
{
ClipmapLevel thisLevel = _clipmapLevels[i];
ClipmapLevel coarserLevel = _clipmapLevels[i > 0 ? i - 1 : 0];
_updater.RequestTileResidency(context, thisLevel);
UpdateTerrain(thisLevel, coarserLevel, context, sceneState);
UpdateImagery(thisLevel, coarserLevel, context, sceneState);
}
}
public void Construct()
{
Geodetic2D a = new Geodetic2D(1.0, 2.0);
Assert.AreEqual(1.0, a.Longitude);
Assert.AreEqual(2.0, a.Latitude);
}
