public void UpdateGridZoom(ref List <IData3DCollection> _datasets, float zoom)
{
IData3DCollection grid = _datasets.SingleOrDefault(s => s.Name == "gridNormal");
if (grid != null)
{
LineDataCollection ldc = grid as LineDataCollection;
var colour = CoarseGridLines;
float LODfade = (float)Math.Max(Math.Min((zoom / 0.1 - 1.0) / 5.0, 1.0), 0.5);
ldc.Color = Color.FromArgb((int)(colour.R * LODfade), (int)(colour.G * LODfade), (int)(colour.B * LODfade));
//Console.WriteLine("LOD {0} fade {1} Color {2}", ldc.Name, LODfade, ldc.Color);
}
}
public void UpdateGridCoordZoom(ref List <IData3DCollection> _datasets, float zoom)
{
IData3DCollection gridLOD2 = _datasets.SingleOrDefault(s => s.Name == "text bitmap LOD2");
if (gridLOD2 != null)
{
TexturedQuadDataCollection tqdc = gridLOD2 as TexturedQuadDataCollection;
float LODfade = (float)Math.Max(Math.Min((0.2 / zoom - 1.0) / 2.0, 1.0), 0.0);
Color calpha = Color.FromArgb((int)(255 * LODfade), Color.White);
tqdc.SetColour(calpha);
//Console.WriteLine("LOD {0} fade {1} Color {2}", tqdc.Name, LODfade, calpha);
}
}
