public bool FindTileInMask(Mask m, bool pngTileOnly, ref TileXY txy)
{
foreach (KeyValuePair <TileXY, TileMeta> pair in tiles)
{
if (!m.ContainsTile(pair.Key))
{
continue;
}
if (!pngTileOnly || pair.Value.hasAlpha)
{
txy = pair.Key;
while (true)
{
bool hasParent = false;
TileXY[] parents = txy.GetParent().GetSiblings();
for (int i = 0; i < 4; i++)
{
if (m.ContainsTile(parents[i]) && tiles.ContainsKey(parents[i]) && (!pngTileOnly || tiles[parents[i]].hasAlpha))
{
txy = parents[i];
hasParent = true;
break;
}
}
if (!hasParent || txy.level == 0)
{
break;
}
}
return(true);
}
}
return(false);
}
/// <summary>
/// check if this mask contains a tile
/// </summary>
/// <param name="tilexy"></param>
/// <returns></returns>
public bool ContainsTile(TileXY tilexy)
{
double lat, lon;
BingProjection.PixelXYToLatLong((int)tilexy.x * 256, (int)tilexy.y * 256, (int)tilexy.level, out lat, out lon);
if (!ContainsLatLon(lat, lon))
{
return(false);
}
BingProjection.PixelXYToLatLong((int)tilexy.x * 256 + 256, (int)tilexy.y * 256, (int)tilexy.level, out lat, out lon);
if (!ContainsLatLon(lat, lon))
{
return(false);
}
BingProjection.PixelXYToLatLong((int)tilexy.x * 256, (int)tilexy.y * 256 + 256, (int)tilexy.level, out lat, out lon);
if (!ContainsLatLon(lat, lon))
{
return(false);
}
BingProjection.PixelXYToLatLong((int)tilexy.x * 256 + 256, (int)tilexy.y * 256 + 256, (int)tilexy.level, out lat, out lon);
if (!ContainsLatLon(lat, lon))
{
return(false);
}
return(true);
}
public void MoveTo(int offsetx, int offsety, bool isZoomOut, bool isZoomIn)
{
// get target location
TileXY targetXY = centerTilexy;
if (isZoomOut)
{
targetXY = centerTilexy.GetParent();
}
else if (isZoomIn)
{
TileXY[] sons = centerTilexy.GetSon().GetSiblings();
foreach (TileXY txy in sons)
{
targetXY = txy;
if (tiles.ContainsKey(targetXY))
{
break;
}
}
}
else
{
targetXY = centerTilexy.GetNeighbor(offsetx, offsety);
}
// move the center and paint
centerTilexy = targetXY;
Paint();
}
private PointD GetLonLat(Point pixelOffset, TileXY tilexy)
{
double lat, lon;
BingProjection.PixelXYToLatLong(tilexy.x * 256 + pixelOffset.X, tilexy.y * 256 + pixelOffset.Y, (int)tilexy.level, out lat, out lon);
return(new PointD(lon, lat));
}
public bool ContainsTilePixel(TileXY tilexy, Point pixelOffset)
{
double lat, lon;
BingProjection.PixelXYToLatLong((int)tilexy.x * 256 + pixelOffset.X, (int)tilexy.y * 256 + pixelOffset.Y, (int)tilexy.level, out lat, out lon);
return(ContainsLatLon(lat, lon) ? true : false);
}
public Point[] GetUtmCorrectedRelativePolygon(TileXY tilexy, int zone)
{
double[] input = new double[4];
double[] result = new double[8];
input[0] = box.top;
input[1] = box.right;
input[2] = box.bottom;
input[3] = box.left;
for (int i = 0; i < 4; i++)
{
input[i] = input[i] * Math.PI / 180;
}
MUtilities.LatLonRectangleExpandByUtm(zone, input, result);
for (int i = 0; i < 8; i++)
{
result[i] = result[i] * 180 / Math.PI;
}
Point[] points = new Point[4];
points[0] = BingProjection.LatLongToPixelXY(result[0], result[1], tilexy.level);
points[1] = BingProjection.LatLongToPixelXY(result[2], result[3], tilexy.level);
points[2] = BingProjection.LatLongToPixelXY(result[4], result[5], tilexy.level);
points[3] = BingProjection.LatLongToPixelXY(result[6], result[7], tilexy.level);
for (int i = 0; i < 4; i++)
{
points[i].X -= tilexy.x * 256;
points[i].Y -= tilexy.y * 256;
}
return(points);
}
public static string TileXYToLatLong(TileXY tilexy)
{
double lat, lon;
PixelXYToLatLong((int)tilexy.x * 256, (int)tilexy.y * 256, (int)tilexy.level, out lat, out lon);
return(lat.ToString("F6") + "," + lon.ToString("F6"));
}
public TileXY GetNeighbor(int offsetx, int offsety)
{
TileXY txy = this;
txy.x += offsetx;
txy.y += offsety;
return(txy);
}
public TileXY GetSon()
{
TileXY txy = this;
txy.level++;
txy.x *= 2;
txy.y *= 2;
return(txy);
}
public Mask(Point start, Point end, TileXY tilexy)
{
if (end.X < start.X || end.Y < start.Y)
{
throw new Exception("Invalid rectangle!");
}
PointD a = GetLonLat(start, tilexy);
PointD b = GetLonLat(end, tilexy);
box = new RectangleD(a.lat, b.lon, b.lat, a.lon);
}
public TileXY GetParent()
{
TileXY txy = this;
if (txy.level == 0)
{
return(txy);
}
txy.level--;
txy.x /= 2;
txy.y /= 2;
return(txy);
}
public Point[] GetRelativePolygon(TileXY tilexy)
{
Point[] points = new Point[4];
points[0] = BingProjection.LatLongToPixelXY(box.top, box.left, tilexy.level);
points[1] = BingProjection.LatLongToPixelXY(box.top, box.right, tilexy.level);
points[2] = BingProjection.LatLongToPixelXY(box.bottom, box.right, tilexy.level);
points[3] = BingProjection.LatLongToPixelXY(box.bottom, box.left, tilexy.level);
for (int i = 0; i < 4; i++)
{
points[i].X -= tilexy.x * 256;
points[i].Y -= tilexy.y * 256;
}
return(points);
}
public static string GetQuadKey(TileXY tilexy)
{
StringBuilder quadKey = new StringBuilder();
for (int i = tilexy.level; i > 0; i--)
{
char digit = '0';
int mask = 1 << (i - 1);
if ((tilexy.x & mask) != 0)
{
digit++;
}
if ((tilexy.y & mask) != 0)
{
digit++;
digit++;
}
quadKey.Append(digit);
}
return(quadKey.ToString());
}
public void OnMouseUp(Point mousePositionEnd, int actionType)
{
isMouseDown = false;
Bitmap bm = (Bitmap)pbox.Image;
if (mousePositionEnd != mousePositionStart) // it's a drag
{
// get real start and end
Point start = new Point(Math.Min(mousePositionStart.X, mousePositionEnd.X), Math.Min(mousePositionStart.Y, mousePositionEnd.Y));
Point end = new Point(Math.Max(mousePositionStart.X, mousePositionEnd.X), Math.Max(mousePositionStart.Y, mousePositionEnd.Y));
Mask mask = new Mask(start, end, centerTilexy.GetNeighbor(-centerX, -centerY));
switch (actionType)
{
case 0:
// get statistics
Paint(); // Very important! Paint first to get rid of red line drawn by drag of mouse
byte minr = byte.MaxValue, ming = byte.MaxValue, minb = byte.MaxValue;
byte maxr = 0, maxg = 0, maxb = 0;
for (int w = start.X; w <= end.X; w++)
{
for (int h = start.Y; h <= end.Y; h++)
{
Color c = bm.GetPixel(w, h);
if (c.A == 0)
{
continue;
}
maxr = Math.Max(maxr, c.R);
maxg = Math.Max(maxg, c.G);
maxb = Math.Max(maxb, c.B);
minr = Math.Min(minr, c.R);
ming = Math.Min(ming, c.G);
minb = Math.Min(minb, c.B);
}
}
FormNav.ShowMessage("Min RGB: " + minr + "/" + ming + "/" + minb);
FormNav.ShowMessage("Max RGB: " + maxr + "/" + maxg + "/" + maxb);
break;
case 1:
// zoom in
TileXY txy = centerTilexy;
if (FindTileInMask(mask, false, ref txy))
{
centerTilexy = txy;
}
break;
case 2:
// add to mask
masks.Add(mask);
FormNav.ShowMessage("new mask added");
break;
case 3:
// find PNG
TileXY txy2 = centerTilexy;
if (FindTileInMask(mask, true, ref txy2))
{
centerTilexy = txy2;
}
break;
case 4:
// guess valid pixel range
// important, paint to original images before doing the calculation
Paint(true);
// first, get pixel cnt array
int[,] pixelCnt = new int[3, 256];
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 256; j++)
{
pixelCnt[i, j] = 0;
}
}
for (int w = start.X; w <= end.X; w++)
{
for (int h = start.Y; h <= end.Y; h++)
{
Color c = bm.GetPixel(w, h);
if (c.A == 0)
{
continue;
}
pixelCnt[0, c.R]++;
pixelCnt[1, c.G]++;
pixelCnt[2, c.B]++;
}
}
// then, convert to pixel sum
for (int i = 0; i < 3; i++)
{
for (int j = 1; j < 256; j++)
{
pixelCnt[i, j] += pixelCnt[i, j - 1];
}
}
double[] ratios = new double[] { 0.6, 0.7, 0.8, 0.9, 0.95, 0.96, 0.965, 0.97, 0.975, 0.98, 0.985, 0.99, 0.995, 0.998 };
int[,] guessedRanges = new int[3, ratios.Length];
for (int i = 0; i < 3; i++)
{
int j = 0;
for (int k = 0; k < ratios.Length; k++)
{
for (; j < 50; j++)
{
if (((double)pixelCnt[i, j]) / pixelCnt[i, 50] > ratios[k])
{
break;
}
}
guessedRanges[i, k] = j;
}
}
cbGuessedPixelValidRanges.Items.Clear();
for (int i = 0; i < ratios.Length; i++)
{
cbGuessedPixelValidRanges.Items.Add((guessedRanges[0, i] + 1) + "," + (guessedRanges[1, i] + 1) + "," + (guessedRanges[2, i] + 1) + ",255,255,255");
}
FormNav.ShowMessage("Pixel Valid Ranges are guessed");
break;
default:
break;
}
// paint anyway
Paint();
}
else // it's a single click
{
FormNav.ShowMessage("Color: " + bm.GetPixel(mousePositionEnd.X, mousePositionEnd.Y));
// get top left tile
TileXY tileTopLeft = centerTilexy.GetNeighbor(-centerX, -centerY);
for (int i = 0; i < masks.Count; i++)
{
if (masks[i].ContainsTilePixel(tileTopLeft, mousePositionEnd))
{
FormNav.ShowMessage("Mask " + i + ": " + masks[i].ToString());
}
}
}
}
public void Paint(bool originalOnly = false, bool centerOnly = false)
{
// clear image
Graphics g = Graphics.FromImage(pbox.Image);
if (!originalOnly)
{
g.Clear(bgColor);
}
else
{
g.Clear(Color.FromArgb(0, 0, 0, 0));
}
// draw tiles
for (int j = 0; j < rowCount; j++)
{
for (int i = 0; i < columnCount; i++)
{
int offsetx = i - centerX;
int offsety = j - centerY;
if (centerOnly && (offsetx != 0 || offsety != 0))
{
continue;
}
TileXY xy = centerTilexy.GetNeighbor(offsetx, offsety);
if (tiles.ContainsKey(xy))
{
TileMeta tmeta = tiles[xy];
byte[] imgBuff = MDataFile.Read(tdataPaths[tmeta.tdataPathId], tmeta.imgOffset, tmeta.imgLength);
Rectangle rect = new Rectangle(i * imageSize, j * imageSize, imageSize, imageSize);
g.DrawImage(Image.FromStream(new MemoryStream(imgBuff)), rect);
if (!originalOnly && !_isShowValidGraph && distinguishPng && tmeta.hasAlpha)
{
g.FillRectangle(brushCoverPNG, rect);
}
}
}
}
if (!originalOnly)
{
// get current utm correction zone
int zone = Int32.Parse(tbUtmCorrectionZone.Text);
// get top left tile xy
TileXY topLeftTileXY = centerTilexy.GetNeighbor(-centerX, -centerY);
// draw masks
if (!_isShowValidGraph)
{
foreach (Mask m in masks)
{
// draw utm corrected masks
g.FillPolygon(m.type == 0 ? brushMaskSkip : (m.type == 1 ? brushMaskNewRange : brushMaskRemove), m.GetUtmCorrectedRelativePolygon(topLeftTileXY, zone));
}
}
// show valid graph
if (_isShowValidGraph && pixelValidRange != null)
{
pixelValidRange.DrawValidGraph((Bitmap)pbox.Image);
}
// draw mouse line
if (isMouseDown)
{
g.DrawRectangle(penMouseDragLine, Math.Min(mousePositionNow.X, mousePositionStart.X),
Math.Min(mousePositionNow.Y, mousePositionStart.Y),
Math.Abs(mousePositionNow.X - mousePositionStart.X),
Math.Abs(mousePositionNow.Y - mousePositionStart.Y));
// draw utm corrected line
Point start = new Point(Math.Min(mousePositionStart.X, mousePositionNow.X), Math.Min(mousePositionStart.Y, mousePositionNow.Y));
Point end = new Point(Math.Max(mousePositionStart.X, mousePositionNow.X), Math.Max(mousePositionStart.Y, mousePositionNow.Y));
Mask mTmp = new Mask(start, end, topLeftTileXY);
g.DrawPolygon(penMouseDragLineUtmCorrected, mTmp.GetUtmCorrectedRelativePolygon(topLeftTileXY, zone));
}
}
pbox.Refresh();
ShowCenterTileInfo();
}
/// <summary>
/// initialize map from a dir which contains *.tdata and *.tmeta files
/// </summary>
/// <param name="dataDir"></param>
public TDataNavigator(string[] tmetaPaths, PictureBox pbox, TextBox tbTileInfo, ComboBox cbGuessedPixelValidRanges, TextBox tbUtmCorrectionZone)
{
this.pbox = pbox;
this.tbTileInfo = tbTileInfo;
this.cbGuessedPixelValidRanges = cbGuessedPixelValidRanges;
this.tbUtmCorrectionZone = tbUtmCorrectionZone;
// create dataPath array
tdataPaths = new string[tmetaPaths.Length];
for (int i = 0; i < tmetaPaths.Length; i++)
{
tdataPaths[i] = tmetaPaths[i].ToLower().Replace(".tmeta", ".tdata");
}
// load all meta info
levelMin = Int32.MaxValue;
levelMax = 0;
for (int i = 0; i < tmetaPaths.Length; i++)
{
using (MMetaFile metaFile = new MMetaFile(tmetaPaths[i]))
{
int recordCnt = metaFile.GetRecordCnt();
for (int j = 0; j < recordCnt; j++)
{
MSTileMetaInfo meta = metaFile.Read(j);
if ((int)meta.tilexy.level < levelMin)
{
levelMin = (int)meta.tilexy.level;
centerTilexy = new TileXY(meta.tilexy);
}
levelMax = Math.Max(levelMax, (int)meta.tilexy.level);
tiles.Add(new TileXY(meta.tilexy), new TileMeta(meta, i));
}
}
}
// zoom in center tile to a reasonable level
while (true)
{
int validSonCount = 0;
TileXY validSonXY = centerTilexy;
foreach (TileXY txy in centerTilexy.GetSon().GetSiblings())
{
if (tiles.ContainsKey(txy))
{
validSonCount++;
validSonXY = txy;
}
}
if (validSonCount == 1)
{
centerTilexy = validSonXY;
}
else
{
break;
}
}
// guess an initial utm correction zone
double lat, lon;
BingProjection.PixelXYToLatLong(centerTilexy.x * 256 + 128, centerTilexy.y * 256 + 128, (int)centerTilexy.level, out lat, out lon);
tbUtmCorrectionZone.Text = Helper.LongitudeToUtmZone(lon).ToString();
Paint();
}