///<summary>获得tile的屏幕2D点</summary>
public static Vector2[] GetTileCorner(EarthData node, Earth earth)
{
Vector2[] v2s = new Vector2[node.normals.Length];
for (int i = 0; i < node.normals.Length; i++)
{
v2s[i] = Helpler.GetProjectPoint2D(node.normals[i], earth.camera.view, earth.camera.projection, earth.global.ScreenWidth, earth.global.ScreenHeight);
}
return(v2s);
}
///<summary>获得tile的屏幕rect</summary>
public static Rect GetTileRect(EarthData node, Earth earth)
{
Vector2[] v2s = new Vector2[node.normals.Length];
for (int i = 0; i < node.normals.Length; i++)
{
v2s[i] = Helpler.GetProjectPoint2D(node.normals[i], earth.camera.view, earth.camera.projection, earth.global.ScreenWidth, earth.global.ScreenHeight);
}
double minx = v2s.Min(p => p.X); double miny = v2s.Min(p => p.Y);
double maxx = v2s.Max(p => p.X); double maxy = v2s.Max(p => p.Y);
return(new Rect(minx, miny, maxx - minx, maxy - miny));
}