public void Create(BBox <LatLon> bounds, BBox <Point> projBounds)
{
UpdateProgressMessage("[Terrain] Downloading DEM tiles");
UpdateProgress(0);
elevation.DownloadMissingFiles(bounds.Min, bounds.Max);
UpdateProgress(1);
var terrains = CreateTerrains(projBounds);
LoadAndApplyElevations(terrains);
}
private static void GetBoundsAndOffset(string osmPath)
{
// get an offset because we want the center of the osm file
// to be the 0|0 point on the game map
bounds = GetOsmBounds(osmPath);
var projBoundsMin = projection.Project(
bounds.Min.Latitude, bounds.Min.Longitude);
var projBoundsMax = projection.Project(
bounds.Max.Latitude, bounds.Max.Longitude);
projectedBounds = new BBox <Point>(projBoundsMin, projBoundsMax);
// change bounds to match the UV grid of the sat images
projectedBounds.Min.X -= projectedBounds.Min.X % TerrainCreator.XSize;
projectedBounds.Min.Y -= projectedBounds.Min.Y % TerrainCreator.YSize;
CalculateOffset(bounds.Min, bounds.Max);
}
private List <Terrain> CreateTerrains(BBox <Point> projBounds)
{
UpdateProgressMessage("[Terrain] Creating terrain items and materials");
UpdateProgress(0);
var stepSize = StepSize.Meters16;
var terrains = new List <Terrain>();
var satMatSii = new SiiFile();
var satMatIdx = 1;
int i = 0;
int totalX = (int)Math.Ceiling((projBounds.Max.X - projBounds.Min.X) / XSize);
int totalY = (int)Math.Ceiling((projBounds.Max.Y - projBounds.Min.Y) / YSize);
int progressReportInterval = 5;
for (double y = projBounds.Min.Y; y < projBounds.Max.Y; y += YSize)
{
for (double x = projBounds.Min.X; x < projBounds.Max.X; x += XSize)
{
// create terrain item
var tPos = new Vector3((float)(x - offset.X), 0, (float)(y - offset.Y));
var trn = AddTerrainGrid(stepSize, TerrainCols, TerrainRows, tPos);
trn.ViewDistance = 1500;
terrains.Add(trn);
LoadAndApplySatelliteImage(trn, satMatIdx++, satMatSii);
i++;
if (i % progressReportInterval == 0)
{
UpdateProgress((float)i / (totalX * totalY));
}
}
}
var satMatSiiDir = Path.Combine(modDir, "def/world/");
Directory.CreateDirectory(satMatSiiDir);
satMatSii.Serialize(Path.Combine(satMatSiiDir, "terrain_material.osm_proto.sii"));
UpdateProgress(1);
return(terrains);
}