}//end method
/// <summary>
/// 画像出力
/// </summary>
/// <param name="tileUtil"></param>
/// <returns></returns>
public ExportResult Export(Extent ext, int level)
{
var tileUtil = this._tileUtil;
var infos = tileUtil.ExtentToTileInfo(level, ext);
var size = tileUtil.CalcPxSize(level, ext);
this._infos = infos;
this._size = size;
PixelFormat pxFormat = PixelFormat.Format32bppArgb;
ColorPalette palette = null;
//一旦最初の画像を取ってピクセルフォーマットを取得
using (WebClient client = new WebClient())
using (var mem = new MemoryStream(client.DownloadData(infos.FirstOrDefault().Url)))
using (var tile = Bitmap.FromStream(mem))
{
pxFormat = tile.PixelFormat;
palette = tile.Palette;
}//end io
//インデックス系だとGraphicsが動作しないので仕方なし
//インデックス系を扱う場合はExportIndexを使用
if (pxFormat == PixelFormat.Indexed || pxFormat == PixelFormat.Format8bppIndexed)
{
pxFormat = PixelFormat.Format32bppArgb;
}
var img = new Bitmap(size.Width, size.Height, pxFormat);
using (var gra = Graphics.FromImage(img))
{
var esriWorldFile = this.exportImage(ext, (tileParam) => {
var tile = tileParam.Tile;
var x = tileParam.X;
var y = tileParam.Y;
gra.DrawImageUnscaled(tile, x, y);
});
return(new ExportResult(img, esriWorldFile));
} //end graphics
} //end method
} //end method
/// <summary>
/// インデックスカラー画像の出力
/// </summary>
/// <param name="ext"></param>
/// <param name="level"></param>
/// <returns></returns>
public ExportResult Export8bppIndexed(Extent ext, int level)
{
var tileUtil = this._tileUtil;
var infos = tileUtil.ExtentToTileInfo(level, ext);
var size = tileUtil.CalcPxSize(level, ext);
this._infos = infos;
this._size = size;
PixelFormat pxFormat = PixelFormat.Format8bppIndexed;
ColorPalette palette = null;
//一旦最初の画像を取ってピクセルフォーマットを取得
using (WebClient client = new WebClient())
using (var mem = new MemoryStream(client.DownloadData(infos.FirstOrDefault().Url)))
using (var tile = Bitmap.FromStream(mem))
{
pxFormat = tile.PixelFormat;
palette = tile.Palette;
}//end io
//パレットにセットするための色のリストを準備
List <Color> colors = null;
if (this.Colors == null)
{
colors = new List <Color>(palette.Entries);
this.Colors = colors;
}
else
{
colors = new List <Color>(this.Colors);
}//end if
//返却画像の用意
var img = new Bitmap(size.Width, size.Height, PixelFormat.Format8bppIndexed);
string esriWorldFile = null;
try
{
//ロックする
var data = img.LockBits(new Rectangle(0, 0, img.Width, img.Height), ImageLockMode.WriteOnly, img.PixelFormat);
//バイト配列の取得
var bytes = new byte[data.Height * data.Stride];
Marshal.Copy(data.Scan0, bytes, 0, bytes.Length);
esriWorldFile = this.exportImage(ext, (tileParams) =>
{
var tile = tileParams.Tile;
var x = tileParams.X;
var y = tileParams.Y;
//全体サイズよりXYがでかい場合戻す
if (size.Width < x)//(size.Height < y || size.Width < x)
{
return;
}
try
{
var pal = tile.Palette;
Dictionary <int, int> colorMap = new Dictionary <int, int>();
//Debug.WriteLine("---------------------------------------------");
for (int i = 0; i < pal.Entries.Length; i++)
{
var c = pal.Entries[i];
//Debug.WriteLine($"{i}:RGB:{String.Format("#{0:X2}{1:X2}{2:X2}", c.R, c.G, c.B)}");
var colorIndex = colors.IndexOf(c);
//ない場合
if (colorIndex < 0)
{
colorMap.Add(i, colors.Count);
colors.Add(c);
}
else
{
colorMap.Add(i, colorIndex);
} //end if
} //end loop
//Debug.WriteLine("---------------------------------------------");
var tw = tile.Width;
var th = tile.Height;
//はみ出た分を切るよう
var tileX = x < 0 ? Math.Abs(x) : 0;
var tileY = y < 0 ? Math.Abs(y) : 0;
var tileW = size.Width < x + tw ? tw - ((x + tw) - size.Width) : tw;
var tileH = size.Height < y + th ?th - ((y + th) - size.Height) : th;
//はみ出ているばあいはけずる
tileW = tileW - tileX;
tileH = tileH - tileY;
//ロックする
try
{
//タイルデータの取得
var tileBytes = this.getTileData(tile, colorMap, colors);
var tstride = tw;
//幅単位で回る
//for (int i = 0; i < tiledata.Width; i++)
//タイルから転送先画像のインデックスを足すよう
var cnt = 0;
var setX = x < 0 ? 0 : x;
var setY = y < 0 ? 0 : y;
for (int i = tileY; i < tileY + tileH; i++)
{
var start = i * tstride + tileX;
//var start = i * tiledata.Height;
//var copyBytes = new byte[1 * tiledata.Height];
var copyBytes = new byte[1 * tileW];
var imgStart = (setY + cnt) * data.Stride + setX;
cnt++;
try
{
Array.Copy(tileBytes, start, copyBytes, 0, copyBytes.Length);
Array.Copy(copyBytes, 0, bytes, imgStart, copyBytes.Length);
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.Message);
Console.Error.WriteLine(ex.StackTrace);
Console.Error.WriteLine($"Start:{start} Length:{copyBytes.Length}");
Console.Error.WriteLine($"image:{imgStart}");
}
}
////アンロック
//tile.UnlockBits(tiledata);
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.Message);
Console.Error.WriteLine(ex.StackTrace);
Console.Error.WriteLine($"TH:{tileH} TW:{tileW} X:{tileX} Y:{tileY}");
}
}catch (Exception ex)
{
Console.Error.WriteLine(ex.Message);
Console.Error.WriteLine(ex.StackTrace);
}
});//end tile action
var newPalette = img.Palette;
//色数が多い際は切り捨て
var colorCount = colors.Count;
if (newPalette.Entries.Length < colors.Count)
{
Console.WriteLine("color over");
colorCount = newPalette.Entries.Length;
}
Array.Copy(colors.ToArray(), newPalette.Entries, colorCount);
img.Palette = newPalette;
//バイト配列の書き込み
Marshal.Copy(bytes, 0, data.Scan0, bytes.Length);
img.UnlockBits(data);
}
catch (Exception ex)
{
Debug.Print(ex.Message);
Debug.Print(ex.StackTrace);
if (img != null)
{
img.Dispose();
img = null;
}
throw;
} //end try
return(new ExportResult(img, esriWorldFile));
} //end method
