public TextureInfo ConstructTextureWithGpxTrack(TileRange tiles, BoundingBox bbox, string fileName, TextureImageFormat mimeType, IEnumerable <GeoPoint> gpxPoints)
{
// where is the bbox in the final image ?
// get pixel in full map
int zoomLevel = tiles.First().TileInfo.Zoom;
var projectedBbox = ConvertWorldToMap(bbox, zoomLevel);
var tilesBbox = GetTilesBoundingBox(tiles);
int xOffset = (int)(tilesBbox.xMin - projectedBbox.xMin);
int yOffset = (int)(tilesBbox.yMin - projectedBbox.yMin);
//DrawDebugBmpBbox(tiles, localBbox, tilesBbox, fileName, mimeType);
int tileSize = tiles.Provider.TileSize;
var pointsOnTexture = gpxPoints.Select(pt => TileUtils.LatLongToPixelXY(pt.Latitude, pt.Longitude, zoomLevel))
.Select(pt => new PointF(pt.X - (int)projectedBbox.xMin, pt.Y - (int)projectedBbox.yMin));
#if NETFULL
ImageFormat format = mimeType == TextureImageFormat.image_jpeg ?
ImageFormat.Jpeg
: ImageFormat.Png;
using (Bitmap bmp = new Bitmap((int)projectedBbox.Width, (int)projectedBbox.Height))
{
using (Graphics g = Graphics.FromImage(bmp))
{
foreach (var tile in tiles)
{
using (MemoryStream stream = new MemoryStream(tile.Image))
{
using (Image tileImg = Image.FromStream(stream))
{
int x = (tile.TileInfo.X - tiles.Start.X) * tileSize + xOffset;
int y = (tile.TileInfo.Y - tiles.Start.Y) * tileSize + yOffset;
g.DrawImage(tileImg, x, y);
}
}
}
}
bmp.Save(fileName, format);
}
throw new NotImplementedException("GPX drawing not implemented yet in .Net Full");
#else
using (Image <Rgba32> outputImage = new Image <Rgba32>((int)projectedBbox.Width, (int)projectedBbox.Height))
{
foreach (var tile in tiles)
{
using (Image <Rgba32> tileImg = Image.Load(tile.Image))
{
int x = (tile.TileInfo.X - tiles.Start.X) * tileSize + xOffset;
int y = (tile.TileInfo.Y - tiles.Start.Y) * tileSize + yOffset;
outputImage.Mutate(o => o
.DrawImage(tileImg, new Point(x, y), 1f)
);
}
}
outputImage.Mutate(o => o
.DrawLines(new Rgba32(1, 0, 0, 1f), 5f, pointsOnTexture.ToArray())
);
// with encoder
//IImageEncoder encoder = ConvertFormat(mimeType);
//outputImage.Save(fileName, encoder);
outputImage.Save(fileName);
}
#endif
return(new TextureInfo(fileName, mimeType, (int)projectedBbox.Width, (int)projectedBbox.Height, zoomLevel, projectedBbox));
//return new TextureInfo(fileName, format, (int)tilesBbox.Width, (int)tilesBbox.Height);
}
public TextureInfo ConstructTexture(TileRange tiles, BoundingBox bbox, string fileName, TextureImageFormat mimeType)
{
// where is the bbox in the final image ?
// get pixel in full map
int zoomLevel = tiles.First().TileInfo.Zoom;
var projectedBbox = ConvertWorldToMap(bbox, zoomLevel);
var tilesBbox = GetTilesBoundingBox(tiles);
//DrawDebugBmpBbox(tiles, localBbox, tilesBbox, fileName, mimeType);
int tileSize = tiles.Provider.TileSize;
#if NETFULL
ImageFormat format = mimeType == TextureImageFormat.image_jpeg ?
ImageFormat.Jpeg
: ImageFormat.Png;
using (Bitmap bmp = new Bitmap((int)projectedBbox.Width, (int)projectedBbox.Height))
{
int xOffset = (int)(tilesBbox.xMin - projectedBbox.xMin);
int yOffset = (int)(tilesBbox.yMin - projectedBbox.yMin);
using (Graphics g = Graphics.FromImage(bmp))
{
foreach (var tile in tiles)
{
using (MemoryStream stream = new MemoryStream(tile.Image))
{
using (Image tileImg = Image.FromStream(stream))
{
int x = (tile.TileInfo.X - tiles.Start.X) * tileSize + xOffset;
int y = (tile.TileInfo.Y - tiles.Start.Y) * tileSize + yOffset;
g.DrawImage(tileImg, x, y);
}
}
}
}
bmp.Save(fileName, format);
}
#else
using (Image <Rgba32> outputImage = new Image <Rgba32>((int)projectedBbox.Width, (int)projectedBbox.Height))
{
int xOffset = (int)(tilesBbox.xMin - projectedBbox.xMin);
int yOffset = (int)(tilesBbox.yMin - projectedBbox.yMin);
foreach (var tile in tiles)
{
using (Image <Rgba32> tileImg = Image.Load(tile.Image))
{
int x = (tile.TileInfo.X - tiles.Start.X) * tileSize + xOffset;
int y = (tile.TileInfo.Y - tiles.Start.Y) * tileSize + yOffset;
outputImage.Mutate(o => o
.DrawImage(tileImg, new Point(x, y), 1f)
);
}
}
// with encoder
//IImageEncoder encoder = ConvertFormat(mimeType);
//outputImage.Save(fileName, encoder);
outputImage.Save(fileName);
}
#endif
return(new TextureInfo(fileName, mimeType, (int)projectedBbox.Width, (int)projectedBbox.Height, zoomLevel, projectedBbox));
//return new TextureInfo(fileName, format, (int)tilesBbox.Width, (int)tilesBbox.Height);
}
