/// <summary>
/// helps when image file was corrupted, arranges reload.
/// </summary>
/// <param name="tile"></param>
/// <param name="baseName"></param>
public static void resetBackdrop(TileTerra tile, string baseName)
{
string imageFileName = tileImagePath(baseName);
try
{
if (Project.serverAvailable)
{
string imageUrl = getImageUrl(baseName);
DownloadThread dt = new DownloadThread();
dt.DownloadUrl = imageUrl;
dt.tile = tile;
dt.baseName = baseName;
dt.fileName = imageFileName;
dt.CompleteCallback += new DownloadCompleteHandler(imageDownloadCompleteCallback);
dt.ProgressCallback += new DownloadProgressHandler(imageDownloadProgressCallback);
dt.addMonitoredMethod = new AddMonitoredMethod(ProgressMonitor.addMonitored);
// tilesBeingLoadedCount++;
//add dt worker method to the thread pool / queue a task
//Project.threadPool.PostRequest (new WorkRequestDelegate (dt.Download), baseName);
ThreadPool2.QueueUserWorkItem(new WaitCallback(dt.Download), baseName);
#if DEBUG
LibSys.StatusBar.Trace("OK: TerraserverCache:resetBackdrop() - tile '" + baseName + "' - loading remote from " + imageUrl);
#endif
}
}
catch (Exception e)
{
LibSys.StatusBar.Error("file '" + imageFileName + "' failed to load on reset: " + e.Message);
}
}
protected void queryDisconnected()
{
GeoCoord covTL = m_cameraManager.CoverageTopLeft;
GeoCoord covBR = m_cameraManager.CoverageBottomRight;
double marginY = m_retilingSpecial ? 0.0d : ((covBR.Lng - covTL.Lng) / 40.0d);
double marginX = m_retilingSpecial ? 0.0d : ((covTL.Lat - covBR.Lat) / 40.0d * m_cameraManager.xScaleFactor);
double covTL_Lng = covTL.Lng - marginX;
double covTL_Lat = covTL.Lat + marginY;
double covBR_Lng = covBR.Lng + marginX;
double covBR_Lat = covBR.Lat - marginY;
int currentZone = getZone(m_cameraManager.Location);
LonLatPt lonlat = new LonLatPt();
lonlat.Lat = covTL_Lat;
lonlat.Lon = covTL_Lng;
UtmPt utmptTL = Projection.LonLatPtToUtmNad83Pt(lonlat); // can be in other than currentZone
lonlat.Lat = covBR_Lat;
lonlat.Lon = covBR_Lng;
UtmPt utmptBR = Projection.LonLatPtToUtmNad83Pt(lonlat); // can be in other than currentZone
if(utmptTL.Zone != currentZone)
{
lonlat.Lat = m_cameraManager.Location.Lat;
lonlat.Lon = m_cameraManager.Location.Lng;
UtmPt utmptCam = Projection.LonLatPtToUtmNad83Pt(lonlat); // can be in other than currentZone
double dX = utmptBR.X - utmptCam.X;
utmptTL.X = utmptCam.X - dX;
utmptTL.Zone = currentZone;
}
else if(utmptBR.Zone != currentZone)
{
lonlat.Lat = m_cameraManager.Location.Lat;
lonlat.Lon = m_cameraManager.Location.Lng;
UtmPt utmptCam = Projection.LonLatPtToUtmNad83Pt(lonlat); // can be in other than currentZone
double dX = utmptCam.X - utmptTL.X;
utmptBR.X = utmptCam.X + dX;
utmptBR.Zone = currentZone;
}
int iScale = (int)m_tileScale;
int metersPerPixel = (1 << ((int) iScale - 10));
int factor = 200 * metersPerPixel;
if(!firstSuperframe || xEnd - xStart == 0 || m_lastFactor == 0)
{
xStart = (int)Math.Floor(utmptTL.X / factor);
yStart = (int)Math.Ceiling(utmptTL.Y / factor);
xEnd = (int)Math.Ceiling(utmptBR.X / factor);
yEnd = (int)Math.Floor(utmptBR.Y / factor);
m_lastFactor = factor;
}
else
{
xStart = xStart * m_lastFactor / factor;
yStart = yStart * m_lastFactor / factor;
xEnd = xEnd * m_lastFactor / factor;
yEnd = yEnd * m_lastFactor / factor;
firstSuperframe = false;
}
int numTilesX = xEnd - xStart;
int numTilesY = yStart - yEnd;
// we need to remember UTM coordinates for Projection operation:
m_scale = m_tileScale;
m_metersPerPixel = (1 << ((Int32) m_scale - 10));
screenUtmZone = currentZone;
screenUtmX = xStart * factor;
screenUtmY = (yStart - 1) * factor;
cleanTiles(); // dispose of previous tile array, if any
m_hCount = numTilesX;
m_vCount = numTilesY;
UtmPt utmpt = new UtmPt();
utmpt.X = xStart * factor;
utmpt.Y = yStart * factor;
utmpt.Zone = currentZone;
lonlat = Projection.UtmNad83PtToLonLatPt(utmpt);
double topLeftLat = lonlat.Lat;
double topLeftLng = lonlat.Lon;
utmpt.X = (xStart + numTilesX) * factor;
utmpt.Y = (yStart - numTilesY) * factor;
lonlat = Projection.UtmNad83PtToLonLatPt(utmpt);
double bottomRightLat = lonlat.Lat;
double bottomRightLng = lonlat.Lon;
m_tileResolutionDegreesH = Math.Abs(bottomRightLng - topLeftLng) / m_hCount;
m_tileResolutionDegreesV = Math.Abs(bottomRightLat - topLeftLat) / m_vCount;
#if DEBUG
LibSys.StatusBar.Trace("m_tileResolutionDegreesH=" + m_tileResolutionDegreesH + " m_tileResolutionDegreesV=" + m_tileResolutionDegreesV);
#endif
int themeCode = getThemeCode();
lock(tilesLock)
{
m_tiles = new TileTerra[m_vCount, m_hCount];
SnapList snapLat = new SnapList(m_tileResolutionDegreesV, true);
SnapList snapLng = new SnapList(m_tileResolutionDegreesH, true);
int xx = (int)xStart;
for(int hhh=0; hhh < m_hCount ;hhh++)
{
int yy = (int)yStart;
for(int vvv=0; vvv < m_vCount ;vvv++)
{
utmpt.X = xx * factor;
utmpt.Y = (yy) * factor;
utmpt.Zone = currentZone;
lonlat = Projection.UtmNad83PtToLonLatPt(utmpt);
double tllat = lonlat.Lat;
double tllng = lonlat.Lon;
utmpt.X = (xx + 1) * factor;
utmpt.Y = (yy - 1) * factor;
lonlat = Projection.UtmNad83PtToLonLatPt(utmpt);
double brlat = lonlat.Lat;
double brlng = lonlat.Lon;
GeoCoord tileTopLeft = new GeoCoord(tllng, tllat);
GeoCoord tileBottomRight = new GeoCoord(brlng, brlat);
String baseName = String.Format("T{0}-S{1}-Z{2}-X{3}-Y{4}", themeCode, (Int32)m_tileScale, currentZone, xx, (yy - 1));
//String baseName = "T" + themeCode + "-S" + (Int32)m_tileScale + "-Z" + currentZone + "-X" + xx + "-Y" + (yy - 1);
if(!m_retilingSpecial)
{
// adding to snap lists prepares them for calculating snap points:
snapLat.Add(tllat);
snapLat.Add(brlat);
snapLng.Add(tllng);
snapLng.Add(brlng);
}
m_tiles[vvv, hhh] = new TileTerra(this, m_tileScale, tileTopLeft, tileBottomRight);
m_tiles[vvv, hhh].baseName = baseName;
m_tiles[vvv, hhh].init(); // gets backdrop, or starts the process of loading backdrop
#if DEBUG
//LibSys.StatusBar.Trace("[" + vvv + "," + hhh + "] " + baseName);
//LibSys.StatusBar.Trace(" -- topLeft=" + tileTopLeft + " bottomRight=" + tileBottomRight);
#endif
yy--;
}
xx++;
}
// snap to the grid. If special retiling, distortion is ok:
for(int vvv=0; !m_retilingSpecial && vvv < m_vCount ;vvv++)
{
for(int hhh=0; hhh < m_hCount ;hhh++)
{
TileTerra tile = m_tiles[vvv, hhh];
// snap the tile's corners to grid:
tile.getBottomRight().X = snapLng.snap(tile.getBottomRight().X);
tile.getBottomRight().Y = snapLat.snap(tile.getBottomRight().Y);
tile.getTopLeft().X = snapLng.snap(tile.getTopLeft().X);
tile.getTopLeft().Y = snapLat.snap(tile.getTopLeft().Y);
}
}
// we need topleft tile for Projection:
m_topLeftTile = m_tiles[0, 0];
calcRatios();
// compute resolution to display, meters per pixel, with overzoom indicator:
double ratio = (m_ratioX + m_ratioY) / 2.0d;
string overzoom = ("1m".Equals(m_tileScaleName) && ratio > 1.1d) ? " (overzoom)" : "";
hasRenderedTiles = true;
m_placeDescription = "[" + abbMessage + "]";
m_formText = Project.PROGRAM_NAME_HUMAN + " - " + m_placeDescription + " " + m_tileScaleName + "/pixel * " + ratio + overzoom; // + " (" + m_tileScale + ")";
} // end lock
#region old code relying on Tiles DB in TerraserverCache
/*
int iTheme = (int)m_curTheme;
string where = "theme = " + iTheme + " AND scale = " + iScale + " AND name LIKE '%-Z" + currentZone + "-%'"
+ " AND brlng > " + covTL_Lng + " AND tllng <" + covBR_Lng
+ " AND brlat < " + covTL_Lat + " AND tllat > " + covBR_Lat;
#if DEBUG
LibSys.StatusBar.Trace("WHERE " + where);
#endif
// sort by name gives us rows sorted from bottom left up to top left (per line scan) all the way to top right -
// like a TV scanning, turned on the left side. The Y coord axis goes up, the X - to the right.
string sort = "name";
DataRow[] rows = TerraserverCache.TilesDS.Tables[0].Select(where, sort);
// not all tiles may be present in the grid. Restore the grid structure:
if(rows != null && rows.Length > 0)
{
// use the first tile for grid evaluation:
int tileScale = (int)rows[0]["scale"];
double tllng = (double)rows[0]["tllng"];
double tllat = (double)rows[0]["tllat"];
double brlng = (double)rows[0]["brlng"];
double brlat = (double)rows[0]["brlat"];
m_tileResolutionDegreesH = Math.Abs(brlng - tllng);
m_tileResolutionDegreesV = Math.Abs(brlat - tllat);
#if DEBUG
LibSys.StatusBar.Trace("tl=" + tllng + "," + tllat + " br=" + brlng + "," + brlat);
LibSys.StatusBar.Trace("m_tileResolutionDegreesH=" + m_tileResolutionDegreesH + " m_tileResolutionDegreesV=" + m_tileResolutionDegreesV);
LibSys.StatusBar.Trace("tile 0 -- topLeft=" + (new GeoCoord(tllng,tllat)) + " bottomRight=" + (new GeoCoord(brlng,brlat)));
#endif
// evaluate dimensions of tile matrix and corners of the tile-covered frame:
double d;
int hCount = 0;
for (d=tllng; d > covTL.Lng ;d -= m_tileResolutionDegreesH)
{
//LibSys.StatusBar.Trace("working left -- topLeft=" + (new GeoCoord(d,tllat)));
hCount++;
}
double topLeftLng = d;
for (d=tllng; d < covBR.Lng ;d += m_tileResolutionDegreesH)
{
//LibSys.StatusBar.Trace("working right -- topLeft=" + (new GeoCoord(d,tllat)));
hCount++;
}
double bottomRightLng = d;
int vCount = 0;
for (d=tllat; d < covTL.Lat ;d += m_tileResolutionDegreesV)
{
//LibSys.StatusBar.Trace("working up -- topLeft=" + (new GeoCoord(tllng, d)));
vCount++;
}
double topLeftLat = d;
for (d=tllat; d > covBR.Lat ;d -= m_tileResolutionDegreesV)
{
//LibSys.StatusBar.Trace("working down -- topLeft=" + (new GeoCoord(tllng, d)));
vCount++;
}
double bottomRightLat = d;
#if DEBUG
LibSys.StatusBar.Trace("hCount=" + hCount + " vCount=" + vCount);
LibSys.StatusBar.Trace("topLeft=" + topLeftLng + "," + topLeftLat + " bottomRight=" + bottomRightLng + "," + bottomRightLat);
LibSys.StatusBar.Trace("topLeft=" + (new GeoCoord(topLeftLng,topLeftLat)) + " bottomRight=" + (new GeoCoord(bottomRightLng,bottomRightLat)));
#endif
cleanTiles(); // dispose of previous tile array, if any
m_vCount = vCount+2; // make more cells for inperfections in tile corners.
m_hCount = hCount+2; // extra tiles will be initialized as "empty". The order of the tiles is random.
lock(tilesLock)
{
m_tiles = new TileTerra[m_vCount, m_hCount];
SnapList snapLat = new SnapList(m_tileResolutionDegreesV, true);
SnapList snapLng = new SnapList(m_tileResolutionDegreesH, true);
int vv = 0;
int hh = 0;
int rowCount = 0;
foreach(DataRow row in rows)
{
string basename = (string)row["name"];
tileScale = (int)row["scale"];
tllng = (double)row["tllng"];
tllat = (double)row["tllat"];
brlng = (double)row["brlng"];
brlat = (double)row["brlat"];
// adding to snap lists prepares them for calculating snap points:
snapLat.Add(tllat);
snapLat.Add(brlat);
snapLng.Add(tllng);
snapLng.Add(brlng);
// find the right position for the tile:
// (turns out that order of tiles does not matter)
// place the tile:
GeoCoord tileTopLeft = new GeoCoord(tllng, tllat, 0.0d);
GeoCoord tileBottomRight = new GeoCoord(brlng, brlat, 0.0d);
m_tiles[vv, hh] = new TileTerra(this, (Scale)tileScale, tileTopLeft, tileBottomRight);
#if DEBUG
LibSys.StatusBar.Trace(" ----- tile: " + basename + " --- tl=" + tllng + "," + tllat + " br=" + brlng + "," + brlat);
#endif
m_tiles[vv, hh].baseName = basename;
m_tiles[vv, hh].init(); // gets backdrop, or starts the process of loading backdrop
if(++rowCount >= m_hCount * m_vCount)
{
// no matter what, we don't want to overflow the array and get an exception. Shouldn't happen though.
LibSys.StatusBar.Error("too many tiles in rowset");
break;
}
hh++;
if(hh >= m_hCount)
{
hh = 0;
vv++;
}
// adjust frame corners to eliminate rounding errors, if possible:
topLeftLng = Math.Min(topLeftLng, tllng);
topLeftLat = Math.Max(topLeftLat, tllat);
bottomRightLng = Math.Max(bottomRightLng, brlng);
bottomRightLat = Math.Min(bottomRightLat, brlat);
//break;
}
m_cameraManager.terraTopLeft = new GeoCoord(topLeftLng, topLeftLat);
m_cameraManager.terraBottomRight = new GeoCoord(bottomRightLng, bottomRightLat);
// make sure there are no null tiles in the array:
tllng = topLeftLng;
tllat = topLeftLat;
brlng = tllng + m_tileResolutionDegreesH;
brlat = tllat - m_tileResolutionDegreesV;
for(int vvv=0; vvv < m_vCount ;vvv++)
{
for(int hhh=0; hhh < m_hCount ;hhh++)
{
TileTerra tile = m_tiles[vvv, hhh];
if(tile == null)
{
GeoCoord tileTopLeft = new GeoCoord(snapLng.snap(tllng), snapLat.snap(tllat), 0.0d);
GeoCoord tileBottomRight = new GeoCoord(snapLng.snap(brlng), snapLat.snap(brlat), 0.0d);
m_tiles[vvv, hhh] = new TileTerra(this, (Scale)tileScale, tileTopLeft, tileBottomRight);
m_tiles[vvv, hhh].baseName = "empty";
tile = m_tiles[vvv, hhh];
//m_tiles[vvv, hhh].init(); // gets backdrop, or starts the process of loading backdrop
}
else
{
// snap the tile's corners to grid:
tile.getBottomRight().X = snapLng.snap(tile.getBottomRight().X);
tile.getBottomRight().Y = snapLat.snap(tile.getBottomRight().Y);
tile.getTopLeft().X = snapLng.snap(tile.getTopLeft().X);
tile.getTopLeft().Y = snapLat.snap(tile.getTopLeft().Y);
}
// we need topleft tile for Projection:
if(m_topLeftTile == null || tile.getTopLeft().X <= m_topLeftTile.getTopLeft().X
&& tile.getTopLeft().Y >= m_topLeftTile.getTopLeft().Y)
{
m_topLeftTile = tile;
}
tllng += m_tileResolutionDegreesH;
brlng += m_tileResolutionDegreesH;
}
tllat -= m_tileResolutionDegreesV;
brlat -= m_tileResolutionDegreesV;
}
} // end lock
// compute parameters for Projection:
Rectangle tileRect = m_topLeftTile.getFrameRectangle();
m_ratioX = ((double)tileRect.Width - 1.5d) / 200.0d; // -1.5 corrects added 1 in getFrameRectangle(), and probability of rounding
m_ratioY = ((double)tileRect.Height - 1.5d) / 200.0d;
m_offsetX = tileRect.X;
m_offsetY = tileRect.Y;
// compute resolution to display, meters per pixel, with overzoom indicator:
double ratio = (m_ratioX + m_ratioY) / 2.0d;
string overzoom = ("1m".Equals(m_tileScaleName) && ratio > 1.1d) ? " (overzoom)" : "";
try
{
// compute UTMP reference values for Projection operation:
screenUtmZone = currentZone;
m_scale = (Scale)m_tileScale;
m_metersPerPixel = (1 << ((Int32) m_scale - 10));
// we have to parse tile name here - something like T1-S16-Z17-X57-Y368
char[] sep = new Char[1] { '-' };
string[] split = m_topLeftTile.baseName.Split(sep);
int utmX = Convert.ToInt32(split[3].Substring(1));
int utmY = Convert.ToInt32(split[4].Substring(1));
screenUtmX = (utmX * 200 * m_metersPerPixel);
screenUtmY = (utmY * 200 * m_metersPerPixel);
hasRenderedTiles = true;
}
catch {}
m_placeDescription = "[" + abbMessage + "]";
m_formText = Project.PROGRAM_NAME_HUMAN + " - " + m_placeDescription + " " + m_tileScaleName + "/pixel * " + ratio + overzoom; // + " (" + m_tileScale + ")";
}
else
{
// there are no tiles for this scale, but if we zoomed in the existing tiles may work. Make sure distortion is taken care of.
try
{
// find which tile is now top-left (screen corner contained in this tile):
Rectangle tileRect = new Rectangle(0, 0, 0, 0);
for(int vvv=0; vvv < m_vCount ;vvv++)
{
for(int hhh=0; hhh < m_hCount ;hhh++)
{
TileTerra tile = m_tiles[vvv, hhh];
tileRect = tile.getFrameRectangle();
if(tileRect.Contains(0, 0))
{
m_topLeftTile = tile;
goto found;
}
}
}
goto notFound;
found:
// compute parameters for Projection:
m_ratioX = ((double)tileRect.Width - 1.5d) / 200.0d; // -1.5 corrects added 1 in getFrameRectangle(), and probability of rounding
m_ratioY = ((double)tileRect.Height - 1.5d) / 200.0d;
m_offsetX = tileRect.X;
m_offsetY = tileRect.Y;
// compute resolution to display, meters per pixel, with overzoom indicator:
double ratio = (m_ratioX + m_ratioY) / 2.0d;
string overzoom = " (overzoom)";
// compute UTMP reference values for Projection operation:
screenUtmZone = currentZone;
m_metersPerPixel = (1 << ((Int32) m_scale - 10));
// we have to parse tile name here - something like T1-S16-Z17-X57-Y368
char[] sep = new Char[1] { '-' };
string[] split = m_topLeftTile.baseName.Split(sep);
m_tileScale = (Scale)Convert.ToInt32(split[1].Substring(1));
m_scale = (Scale)m_tileScale;
m_tileScaleName = scaleName(m_scale);
int utmX = Convert.ToInt32(split[3].Substring(1));
int utmY = Convert.ToInt32(split[4].Substring(1));
screenUtmX = (utmX * 200 * m_metersPerPixel);
screenUtmY = (utmY * 200 * m_metersPerPixel);
hasRenderedTiles = true;
m_placeDescription = "[" + abbMessage + "]";
m_formText = Project.PROGRAM_NAME_HUMAN + " - " + m_placeDescription + " " + m_tileScaleName + "/pixel * " + ratio + overzoom; // + " (" + m_tileScale + ")";
notFound:
;
}
catch {}
}
*/
#endregion
// Landmarks array was cleaned in the beginning of ReTile().
// now fill the landmarks from the database:
string where = "lng > " + covTL_Lng + " AND lng <" + covBR_Lng
+ " AND lat < " + covTL_Lat + " AND lat > " + covBR_Lat;
DataRow[] rows = TerraserverCache.LandmarksDS.Tables["lm"].Select(where);
if(rows != null && rows.Length > 0)
{
int numLandmarks = rows.Length;
if(numLandmarks > 0)
{
foreach(DataRow row in rows)
{
string name = (string)row["name"];
string type = (string)row["type"];
double lat = (double)row["lat"];
double lng = (double)row["lng"];
Landmark lm = new Landmark(name, new GeoCoord(lng, lat, 0.0d), type);
TerraserverCache.AddLandmark(lm);
}
}
}
}
public void tileBackdropArrived(TileTerra tile)
{
// the backdrop may arrive when the tile has been phased out due to TileSetTerra.ReTile()
// the tile then hangs around as a means to pass backdrop to TileSetTerra, which is supposed
// to find appropriate location for the backdrop.
bool found = false;
#if DEBUG
//LibSys.StatusBar.Trace("TileSetTerra::tileBackdropArrived() - " + tile.ToString());
#endif
lock(tilesLock)
{
for(int vv=0; vv < m_vCount ;vv++)
{
for(int hh=0; hh < m_hCount ;hh++)
{
TileTerra tt = m_tiles[vv, hh]; // never null
//LibSys.StatusBar.Trace(" = " + tt.baseName);
if(tt == tile)
{
// tile still in the array
#if DEBUG
//LibSys.StatusBar.Trace(" - still in array : " + tt.baseName);
#endif
ArrangeBackdropRedraw(tt);
found = true;
}
else if(tt.baseName.Equals(tile.baseName))
{
// tile has been replaced by another tile with the same base name (due to ReTile())
#if DEBUG
//LibSys.StatusBar.Trace(" - " + tt.baseName + " - replaced by " + tile.baseName + " " + tile.backdrop);
#endif
tt.backdrop = tile.backdrop;
ArrangeBackdropRedraw(tt);
found = true;
}
if(found)
{
goto endLoop;
}
}
}
endLoop:
;
} // end lock
// tile not found - bitmap/backdrop stays in file system and cache for the future.
}
public void ArrangeBackdropRedraw(TileTerra tile)
{
try
{
//LibSys.StatusBar.Trace("TileSetTerra::ArrangeBackdropRedraw() - " + tile.ToString());
Rectangle tileRect = tile.getFrameRectangle();
//LibSys.StatusBar.Trace(" - tileRect " + tileRect);
Rectangle toDrawRect = m_pictureManager.PictureBox.Bounds;
//LibSys.StatusBar.Trace(" - toDrawRect " + toDrawRect);
toDrawRect.Intersect(tileRect);
//LibSys.StatusBar.Trace(" - " + tile.ToString() + " invalidating " + toDrawRect);
m_pictureManager.Invalidate(toDrawRect);
}
catch {}
}
// scaleIndex 0-24 from m_scales[], or -1 for automatic
//private GeoCoord m_topLeftTileCorner = null;
//private GeoCoord m_bottomRightTileCorner = null;
private void ReTile(int scaleIndex)
{
#if DEBUG
LibSys.StatusBar.Trace("IP: TileSetTerra.ReTile(" + scaleIndex + ") drawableReady=" + Project.drawableReady);
#endif
hasRenderedTiles = false;
m_topLeftTile = null;
abbMessage = "offline";
if(!Project.drawableReady) // when starting, we get several resize events with different sizes, as
// layout settles. We want to ignore these and retile after the first paint.
{
return;
}
if(isPassiveSecond)
{
return;
}
lps = null;
m_placeDescription = "";
Project.terraserverDisconnected = false;
Project.terraserverAvailable = false;
m_cameraManager.terraTopLeft = new GeoCoord(0.0d, 0.0d); // make sure we don't have stale values there for EarthquakesDisplayed
m_cameraManager.terraBottomRight = new GeoCoord(0.0d, 0.0d);
TerraserverCache.Landmarks.Clear();
if(!Project.drawTerraserver)
{
m_formText = Project.PROGRAM_NAME_HUMAN;
return;
}
if(Project.terraserverUseServices)
{
// try to create ts and ls and to make connection, if they are missing:
TerraserverCache.initTerraService();
if(TerraserverCache.ts == null)
{
// no connection, can't query terraserver data. Use disconnected mode.
m_formText = Project.PROGRAM_NAME_HUMAN;
Project.terraserverDisconnected = true;
}
}
// what is the picture area in degrees?
// use CameraManager.m_coverageXDegrees, m_coverageYDegrees for span in degrees
if(m_isSecond)
{
m_curTheme = Theme.Topo;
m_curThemeColor = false;
}
else
{
switch(Project.drawTerraserverMode)
{
default:
case "aerial":
m_curTheme = Theme.Photo;
m_curThemeColor = false;
break;
case "color aerial":
m_curTheme = Theme.Photo;
m_curThemeColor = true;
break;
case "topo":
m_curTheme = Theme.Topo;
m_curThemeColor = false;
break;
case "relief":
m_curTheme = Theme.Relief;
m_curThemeColor = false;
break;
}
}
// what is appropriate tile resolution?
if(!calcScale(scaleIndex))
{
// sorry, no sense in aerial/topo at small scale
if(Project.serverAvailable)
{
m_formText = Project.PROGRAM_NAME_HUMAN + " - [" + Project.drawTerraserverMode + " map not available at this scale]";
}
else
{
m_formText = Project.PROGRAM_NAME_HUMAN + " - [" + abbMessage + "]";
}
cleanTiles();
return;
}
// account for scaling of 200x200 pixel tiles into actual tile frame:
m_imageWidth = (int)Math.Round(m_pictureManager.Width * m_cameraManager.MetersPerPixelX() * 1.1d / m_metersPerPixelTileExpected);
m_imageHeight = (int)Math.Round(m_pictureManager.Height * m_cameraManager.MetersPerPixelY() * 1.1d / m_metersPerPixelTileExpected);
if(Project.terraserverUseServices && Project.serverAvailable && scaleIndex == -1)
{
m_formText = Project.PROGRAM_NAME_HUMAN + " - reaching terraserver...";
setMainFormText();
queryTerraserver(); // will set Project.terraserverDisconnected on failure
if(Project.terraserverDisconnected)
{
queryDisconnected();
}
}
else
{
if(Project.serverAvailable)
{
abbMessage = "no ws";
}
queryDisconnected();
}
#if DEBUG
//LibSys.StatusBar.Trace("TileSetTerra:ReTile() ----------------- after " + TileCache.ToString());
#endif
TerraserverCache.purge();
logCamtrackFrame();
if(m_needsRefresh)
{
m_needsRefresh = false;
m_pictureManager.Refresh();
}
}
protected void queryTerraserver()
{
LonLatPt centerPoint = new LonLatPt();
centerPoint.Lat = m_cameraManager.Location.Lat;
centerPoint.Lon = m_cameraManager.Location.Lng;
bool isValidAbb = false;
int retriesMax = 2;
#if DEBUG
LibSys.StatusBar.Trace("IP: TileSetTerra.queryTerraserver() Fetching Area Bounding Box from TerraServer");
#endif
bool canReuseAbb = false;
try
{
if(abb != null && m_savedCurTheme == m_curTheme && m_savedCurThemeColor == m_curThemeColor && m_savedTileScale == m_tileScale
&& m_savedImageWidth == m_imageWidth && m_savedImageHeight == m_imageHeight
&& m_savedCenterPointLat == centerPoint.Lat && m_savedCenterPointLon == centerPoint.Lon)
{
canReuseAbb = true;
isValidAbb = true;
#if DEBUG
LibSys.StatusBar.Trace("IP: TileSetTerra.queryTerraserver() reusing Area Bounding Box");
#endif
}
}
catch {}
int retries = 0;
while (!canReuseAbb && retries <= retriesMax && Project.serverAvailable)
{
try
{
abb = TerraserverCache.ts.GetAreaFromPt(centerPoint, (int)m_curTheme, m_tileScale, m_imageWidth, m_imageHeight);
#if DEBUG
LibSys.StatusBar.Trace("IP: TileSetTerra.queryTerraserver() Got the Area Bounding Box from TerraServer");
#endif
// make a real quick sanity check of acquired abb here:
isValidAbb = abb != null;
if(isValidAbb)
{
TileMeta tmm = abb.Center.TileMeta;
if(tmm.Capture.CompareTo(date1970) < 0)
{
m_placeDescription = abb.NearestPlace;
abbMessage = (m_placeDescription == null ? "" : (m_placeDescription + " - ")) + "this area not covered by Terraserver";
isValidAbb = false;
break;
}
}
// react if abb is invalid:
if(isValidAbb)
{
abbMessage = "terraserver reached";
break;
}
else if (retries++ < retriesMax)
{
#if DEBUG
LibSys.StatusBar.Error("TileSetTerra.queryTerraserver() while getting abb, retry # " + retries + " abb=null");
#endif
continue;
}
else
{
abbMessage = "terraserver not reached";
warningCantReachServer("");
break;
}
}
catch (Exception ie)
{
if (retries++ < retriesMax)
{
#if DEBUG
LibSys.StatusBar.Error("TileSetTerra.queryTerraserver() while getting abb, retry # " + retries + " " + ie.Message);
#endif
// compensate for currently present bug around Seattle:
if(ie.Message.IndexOf("There is an error in XML document") >= 0)
{
abbMessage = "terraserver ws failed";
break;
}
continue;
}
else
{
abbMessage = "terraserver not reached";
warningCantReachServer(ie.Message);
break;
}
}
}
if(!isValidAbb)
{
LibSys.StatusBar.Error("TileSetTerra.queryTerraserver() couldn't get abb - working offline [" + abbMessage + "]");
Project.terraserverDisconnected = true;
cleanTiles();
m_formText = Project.PROGRAM_NAME_HUMAN + " - [" + Project.drawTerraserverMode + " map not available - " + abbMessage + "]";
abb = null;
return;
}
m_savedCurTheme = m_curTheme;
m_savedCurThemeColor = m_curThemeColor;
m_savedTileScale = m_tileScale;
m_savedImageWidth = m_imageWidth;
m_savedImageHeight = m_imageHeight;
m_savedCenterPointLat = centerPoint.Lat;
m_savedCenterPointLon = centerPoint.Lon;
// calculate abb corners geo coordinates, keeping in mind that not all corner tiles exist (actually all four may be missing):
double topLeftLng = 0.0d;
double topLeftLat = 0.0d;
double bottomRightLng = 0.0d;
double bottomRightLat = 0.0d;
if(abb.NorthWest.TileMeta.TileExists)
{
topLeftLng = abb.NorthWest.TileMeta.NorthWest.Lon;
topLeftLat = abb.NorthWest.TileMeta.NorthWest.Lat;
}
else
{
if(abb.SouthWest.TileMeta.TileExists)
{
topLeftLng = abb.SouthWest.TileMeta.NorthWest.Lon;
if(abb.NorthEast.TileMeta.TileExists)
{
topLeftLat = abb.NorthEast.TileMeta.NorthEast.Lat;
}
else
{
// both top corners are missing, go get the top lat by Utm to LonLat conversion:
LonLatPt llpt = getTopLeftByTileId(abb.NorthWest.TileMeta.Id);
topLeftLat = llpt.Lat;
}
}
else
{
// both left side corners are missing, go get the top left corner by Utm to LonLat conversion:
LonLatPt llpt = getTopLeftByTileId(abb.NorthWest.TileMeta.Id);
topLeftLng = llpt.Lon;
topLeftLat = llpt.Lat;
}
}
if(abb.SouthEast.TileMeta.TileExists)
{
bottomRightLng = abb.SouthEast.TileMeta.SouthEast.Lon;
bottomRightLat = abb.SouthEast.TileMeta.SouthEast.Lat;
}
else
{
if(abb.NorthEast.TileMeta.TileExists)
{
bottomRightLng = abb.NorthEast.TileMeta.SouthEast.Lon;
if(abb.SouthWest.TileMeta.TileExists)
{
bottomRightLat = abb.SouthWest.TileMeta.SouthWest.Lat;
}
else
{
// both bottom corners are missing, go get the bottom lat by Utm to LonLat conversion:
LonLatPt llpt = getBottomRightByTileId(abb.SouthEast.TileMeta.Id);
bottomRightLat = llpt.Lat;
}
}
else
{
// both right side corners are missing, go get the bottom right corner by Utm to LonLat conversion:
LonLatPt llpt = getBottomRightByTileId(abb.SouthEast.TileMeta.Id);
bottomRightLng = llpt.Lon;
bottomRightLat = llpt.Lat;
}
}
// more sanity check - in unlikely case we were unable to figure out abb corners:
if(topLeftLng == 0.0d || topLeftLat == 0.0d || bottomRightLng == 0.0d || bottomRightLat == 0.0d)
{
abbMessage = "response from terraserver cannot be mapped";
LibSys.StatusBar.Error("TileSetTerra.queryTerraserver() couldn't get abb - working offline [" + abbMessage + "]");
Project.terraserverDisconnected = true;
cleanTiles();
m_formText = Project.PROGRAM_NAME_HUMAN + " - [" + Project.drawTerraserverMode + " map not available - " + abbMessage + "]";
return;
}
m_placeDescription = abb.NearestPlace;
TileMeta tm = abb.Center.TileMeta;
/*
if(tm.Capture.CompareTo(date1970) < 0)
{
// we won't get here as date is checked before, in sanity check
m_placeDescription += " [" + Project.drawTerraserverMode + " map]";
}
else
{ */
m_placeDescription += " [" + Project.drawTerraserverMode + " map from " + tm.Capture.ToString("D", null) + "]";
//}
#if DEBUG
LibSys.StatusBar.Trace("IP: retrieved info for " + m_placeDescription);
#endif
m_scale = abb.Center.TileMeta.Id.Scale;
m_metersPerPixel = (1 << ((Int32) m_scale - 10));
int factor = 200 * m_metersPerPixel;
m_lastFactor = factor;
// even if a corner tile does not exist, the Id is filled with valid information:
xStart = abb.NorthWest.TileMeta.Id.X;
int yyStart = abb.NorthWest.TileMeta.Id.Y;
// actually superframe is computed in offline mode, so the saved xStart...yEnd values will be used in queryDisconnected()
yStart = yyStart + 1;
xEnd = abb.NorthEast.TileMeta.Id.X + 1;
int yyEnd = abb.SouthWest.TileMeta.Id.Y;
yEnd = yyEnd;
// we need to remember UTMP coordinates for Projection operation:
screenUtmZone = abb.Center.TileMeta.Id.Scene;
screenUtmX = xStart * factor;
screenUtmY = yyStart * factor;
cleanTiles(); // dispose of previous tile array, if any
m_hCount = xEnd - xStart;
m_vCount = yyStart - yyEnd + 1;
#if DEBUG
LibSys.StatusBar.Trace("TileSetTerra:queryTerraserver() m_vCount=" + m_vCount + " m_hCount=" + m_hCount);
#endif
int themeCode = getThemeCode();
lock(tilesLock)
{
m_tiles = new TileTerra[m_vCount, m_hCount];
#if DEBUG
LibSys.StatusBar.Trace("TileSetTerra:queryTerraserver() ----------------- before " + TileCache.ToString());
#endif
GeoCoord covTL = m_cameraManager.CoverageTopLeft;
GeoCoord covBR = m_cameraManager.CoverageBottomRight;
m_cameraManager.terraTopLeft = new GeoCoord(topLeftLng, topLeftLat);
m_cameraManager.terraBottomRight = new GeoCoord(bottomRightLng, bottomRightLat);
m_tileResolutionDegreesH = Math.Abs(bottomRightLng - topLeftLng) / m_hCount;
m_tileResolutionDegreesV = Math.Abs(bottomRightLat - topLeftLat) / m_vCount;
#if DEBUG
LibSys.StatusBar.Trace("abb: topleft=" + topLeftLat + "," + topLeftLng + " bottomRight=" + bottomRightLat + "," + bottomRightLng);
LibSys.StatusBar.Trace(" : m_tileResolutionDegreesH=" + m_tileResolutionDegreesH + " m_tileResolutionDegreesV=" + m_tileResolutionDegreesV);
#endif
SnapList snapLat = new SnapList(m_tileResolutionDegreesV, true);
SnapList snapLng = new SnapList(m_tileResolutionDegreesH, true);
int x = 0;
int y = 0;
int vv = 0;
int hh = 0;
// for corners of the current tile:
double tileTopLeftLng = topLeftLng;
double tileBottomRightLng = tileTopLeftLng + m_tileResolutionDegreesH;
double tileTopLeftLat;
double tileBottomRightLat;
TileId tid = new TileId(); // we need to clone abb.NorthWest.TileMeta.Id and leave abb intact
for ( x = xStart; hh < m_hCount; x++, hh++)
{
vv = 0;
tileTopLeftLat = topLeftLat;
tileBottomRightLat = tileTopLeftLat - m_tileResolutionDegreesV;
for ( y = yyStart; vv < m_vCount; y--, vv++)
{
tid.X = x;
tid.Y = y;
tid.Scale = abb.NorthWest.TileMeta.Id.Scale;
tid.Scene = abb.NorthWest.TileMeta.Id.Scene;
tid.Theme = (int)m_curTheme; // why isn't Theme already set?
String baseName = String.Format("T{0}-S{1}-Z{2}-X{3}-Y{4}", themeCode, (Int32)tid.Scale, tid.Scene, tid.X, tid.Y);
//String baseName = "T" + themeCode + "-S" + (Int32)tid.Scale + "-Z" + tid.Scene + "-X" + tid.X + "-Y" + tid.Y;
// adding to snap lists prepares them for calculating snap points:
snapLat.Add(tileTopLeftLat);
snapLat.Add(tileBottomRightLat);
snapLng.Add(tileTopLeftLng);
snapLng.Add(tileBottomRightLng);
GeoCoord tileTopLeft = new GeoCoord(tileTopLeftLng, tileTopLeftLat, 0.0d);
GeoCoord tileBottomRight = new GeoCoord(tileBottomRightLng, tileBottomRightLat, 0.0d);
m_tiles[vv, hh] = new TileTerra(this, m_tileScale, tileTopLeft, tileBottomRight);
m_tiles[vv, hh].baseName = baseName;
m_tiles[vv, hh].init(); // gets backdrop, or starts the process of loading backdrop
#if DEBUG
//LibSys.StatusBar.Trace("[" + vv + "," + hh + "] " + baseName);
//LibSys.StatusBar.Trace(" -- topLeft=" + tileTopLeft + " bottomRight=" + tileBottomRight);
#endif
// we know a lot about this tile now.
// register the tile with local database for disconnected operation.
// it may turn out to be a cottage cheese or non-arrival though, and the registration would stay there.
//TerraserverCache.registerTerraTile(baseName, m_curTheme, m_tileScale, tileTopLeft, tileBottomRight);
tileTopLeftLat -= m_tileResolutionDegreesV;
tileBottomRightLat -= m_tileResolutionDegreesV;
}
tileTopLeftLng += m_tileResolutionDegreesH;
tileBottomRightLng += m_tileResolutionDegreesH;
}
// snap to the grid (corrects small gaps at maximum zoom):
for(int vvv=0; vvv < m_vCount ;vvv++)
{
for(int hhh=0; hhh < m_hCount ;hhh++)
{
TileTerra tile = m_tiles[vvv, hhh];
// snap the tile's corners to grid:
tile.getBottomRight().X = snapLng.snap(tile.getBottomRight().X);
tile.getBottomRight().Y = snapLat.snap(tile.getBottomRight().Y);
tile.getTopLeft().X = snapLng.snap(tile.getTopLeft().X);
tile.getTopLeft().Y = snapLat.snap(tile.getTopLeft().Y);
}
}
// we need topleft tile for Projection:
m_topLeftTile = m_tiles[0, 0];
Project.terraserverAvailable = true;
} // end lock
calcRatios();
hasRenderedTiles = true;
// compute visible magnification ratio:
double ratio = (m_ratioX + m_ratioY) / 2.0d;
string overzoom = ("1m".Equals(m_tileScaleName) && ratio > 1.1d) ? " (overzoom)" : "";
m_formText = Project.PROGRAM_NAME_HUMAN + " - " + m_placeDescription + " " + m_tileScaleName + "/pixel x" + ratio + overzoom; // + " (" + m_tileScale + ")";
if(Project.drawLandmarks)
{
TerraserverCache.initLandmarkService();
if(TerraserverCache.ls != null && TerraserverCache.landmarkPointTypes != null && TerraserverCache.landmarkPointTypes.Length > 0)
{
// retrieve lanfdmarks information:
BoundingRect br = new BoundingRect();
LonLatPt tmp = abb.SouthEast.TileMeta.SouthEast;
br.LowerRight = new LibNet.LandmarkServer.LonLatPt();
br.LowerRight.Lon = tmp.Lon;
br.LowerRight.Lat = tmp.Lat;
tmp = abb.NorthWest.TileMeta.NorthWest;
br.UpperLeft = new LibNet.LandmarkServer.LonLatPt();
br.UpperLeft.Lon = tmp.Lon;
br.UpperLeft.Lat = tmp.Lat;
m_hasPutOnMap = false;
bool isValidLps = false;
retries = 0;
//string[] types = new string[] { "Building", "Cemetery", "Church", "Encarta Article",
// "Golf Course", "Hospital", "Institution", "Landmark", "Locale",
// "Parks", "Populated Place", "Recreation Area", "Retail Center",
// "Stream Gauge", "Summit", "Transportation Terminal", "Unknown Type" };
/*
string[] types = new string[] { "Building", "Cemetery", "Church", "Encarta Article",
"Golf Course", "Hospital", "Landmark", "Locale",
"Parks", "Populated Place", "Retail Center",
"Stream Gauge", "Summit", "Transportation Terminal", "Unknown Type"};
*/
// as of May 31,03 , "Institution" and "Recreation Area" cause exception:
// Server was unable to process request. --> Data is Null. This method or property cannot be called on Null values.
// see TerraserverCache:295 correcting this.
/*
string[] types = new string[TerraserverCache.landmarkPointTypes.Length];
for(int i=0; i < types.Length ;i++)
{
types[i] = "" + TerraserverCache.landmarkPointTypes[i];
}
*/
while (retries <= retriesMax)
{
try
{
lps = TerraserverCache.ls.GetLandmarkPointsByRect(br, TerraserverCache.landmarkPointTypes); // ,types);
// make a sanity check of acquired lps here:
isValidLps = lps != null;
break;
}
catch (Exception e)
{
if (retries == retriesMax)
{
MessageBox.Show("Unable to get landmark information" + e.Message, "TerraService Error");
break;
}
else
{
retries++;
}
}
catch
{
if (retries == retriesMax)
{
MessageBox.Show("Unable to get landmark information", "TerraService Error");
break;
}
else
{
retries++;
}
}
}
if (isValidLps)
{
int lpsCount = lps.Length;
foreach (LandmarkPoint lp in lps)
{
GeoCoord location = new GeoCoord(lp.Point.Lon, lp.Point.Lat);
string name = lp.Name;
string type = lp.Type;
Landmark lm = new Landmark(name, location, type);
TerraserverCache.AddLandmark(lm); // to ArrayList, for this immediate display
TerraserverCache.RegisterLandmark(lm); // add to DataSet, for disconnected operation
}
}
}
}
}
public static void AddTerraTile(string baseName, double lngPerTile, double latPerTile, TileTerra tile)
{
if(snapLat == null)
{
snapLng = new SnapList(lngPerTile, false);
snapLat = new SnapList(latPerTile, false);
}
if(!CameraTrack.camTrackTerraTiles.Contains(baseName))
{
CameraTrack.camTrackTerraTiles.Add(baseName);
// adding to snap lists prepares them for calculating snap points:
GeoCoord tl = tile.getTopLeft();
GeoCoord br = tile.getBottomRight();
snapLat.Add(tl.Lat);
snapLat.Add(br.Lat);
snapLng.Add(tl.Lng);
snapLng.Add(br.Lng);
}
}
private static void imageDownloadCompleteCallback(object otile, DownloadInfo info, string imageFileName, byte[] dataDownloaded)
{
#if DEBUG
LibSys.StatusBar.Trace("IP: TerraserverCache:imageDownloadCompleteCallback() - " + info.baseName + " " + (dataDownloaded == null? "null" : "" + dataDownloaded.Length) + " bytes loaded");
#endif
// tilesBeingLoadedCount = tilesBeingLoadedCount > 0 ? tilesBeingLoadedCount - 1 : 0;
Backdrop backdrop = (Backdrop)m_backdropCache[info.baseName];
TileTerra tile = (TileTerra)otile; // can be null for preload
if (dataDownloaded == null || dataDownloaded.Length < 100 || Project.is404(dataDownloaded))
{
string comment = dataDownloaded == null ? "no data" : "404";
if (backdrop != null)
{
backdrop.IsEmpty = true; // proven empty
}
ProgressMonitor.markComplete(info.monitored, false, comment);
}
/*
* else if(dataDownloaded.Length == 8321) // cottage cheese
* {
* string comment = "cottage cheese tile";
* backdrop.IsEmpty = true; // proven empty
* tile.IsCottageCheese = true;
* ProgressMonitor.markComplete(info.monitored, false, comment);
* }
*/
else
{
FileStream fs = null;
try
{
string comment = "" + dataDownloaded.Length + " bytes";
if (dataDownloaded.Length == 8321) // cottage cheese
{
if (tile != null)
{
tile.IsCottageCheese = true;
}
comment = "cottage cheese tile";
}
fs = new FileStream(imageFileName, FileMode.Create);
fs.Write(dataDownloaded, 0, dataDownloaded.Length);
fs.Close();
fs = null;
#if DEBUG
LibSys.StatusBar.Trace("OK: file " + imageFileName + " created");
#endif
if (backdrop != null)
{
backdrop.Fill();
}
ProgressMonitor.markComplete(info.monitored, true, comment);
}
catch (Exception e)
{
#if DEBUG
LibSys.StatusBar.Error("" + e.Message);
#endif
if (backdrop != null)
{
backdrop.IsEmpty = true; // proven empty
}
ProgressMonitor.markComplete(info.monitored, false, e.Message);
}
finally
{
if (fs != null)
{
fs.Close();
}
}
}
if (tile != null)
{
tile.backdropArrived(backdrop);
}
}
public static Backdrop getBackdrop(TileTerra tile, string baseName)
{
string imageFileName = tileImagePath(baseName);
Backdrop ret = null;
try
{
if (m_backdropCache.ContainsKey(baseName))
{
ret = (Backdrop)m_backdropCache[baseName]; // may be IsEmpty, if proven that can't download
ret.MarkUsed();
//LibSys.StatusBar.Trace("OK: TerraserverCache:getBackdrop() - tile '" + baseName + "' - found in cache - " + ret);
return(ret);
}
bool loadedFromFile = false;
if (!Project.reloadRefresh && File.Exists(imageFileName))
{
try
{
ret = new Backdrop(imageFileName, baseName, true);
//LibSys.StatusBar.Trace("OK: TerraserverCache:getBackdrop() - tile '" + baseName + "' - loaded from file");
AddBackdrop(baseName, ret);
loadedFromFile = true;
}
catch {}
}
if (!loadedFromFile && Project.serverAvailable)
{
string imageUrl = getImageUrl(baseName);
if (!m_backdropCache.ContainsKey(baseName))
{
ret = new Backdrop(imageFileName, baseName, false); // fill later
AddBackdrop(baseName, ret);
DownloadThread dt = new DownloadThread();
dt.DownloadUrl = imageUrl;
dt.tile = tile;
dt.baseName = baseName;
dt.fileName = imageFileName;
dt.CompleteCallback += new DownloadCompleteHandler(imageDownloadCompleteCallback);
dt.ProgressCallback += new DownloadProgressHandler(imageDownloadProgressCallback);
dt.addMonitoredMethod = new AddMonitoredMethod(ProgressMonitor.addMonitored);
// tilesBeingLoadedCount++;
//add dt worker method to the thread pool / queue a task
//Project.threadPool.PostRequest (new WorkRequestDelegate (dt.Download), baseName);
ThreadPool2.QueueUserWorkItem(new WaitCallback(dt.Download), baseName);
#if DEBUG
LibSys.StatusBar.Trace("OK: TerraserverCache:getBackdrop() - tile '" + baseName + "' - loading remote from " + imageUrl);
#endif
}
else
{
//LibSys.StatusBar.Trace("OK: TerraserverCache:getBackdrop() - tile '" + baseName + "' - already in cache");
}
}
}
catch (Exception e)
{
LibSys.StatusBar.Error("file '" + imageFileName + "' failed to load: " + e.Message);
}
// whatever happened before, returning null is not an option.
if (ret == null)
{
ret = new Backdrop(null, baseName, true); // doFill with null name makes it Empty
AddBackdrop(baseName, ret);
}
return(ret);
}
/// <summary>
/// helps when image file was corrupted, arranges reload.
/// </summary>
/// <param name="tile"></param>
/// <param name="baseName"></param>
public static void resetBackdrop(TileTerra tile, string baseName)
{
string imageFileName = tileImagePath(baseName);
try
{
if(Project.serverAvailable)
{
string imageUrl = getImageUrl(baseName);
DownloadThread dt = new DownloadThread();
dt.DownloadUrl = imageUrl;
dt.tile = tile;
dt.baseName = baseName;
dt.fileName = imageFileName;
dt.CompleteCallback += new DownloadCompleteHandler( imageDownloadCompleteCallback );
dt.ProgressCallback += new DownloadProgressHandler( imageDownloadProgressCallback );
dt.addMonitoredMethod = new AddMonitoredMethod(ProgressMonitor.addMonitored);
// tilesBeingLoadedCount++;
//add dt worker method to the thread pool / queue a task
//Project.threadPool.PostRequest (new WorkRequestDelegate (dt.Download), baseName);
ThreadPool2.QueueUserWorkItem (new WaitCallback (dt.Download), baseName);
#if DEBUG
LibSys.StatusBar.Trace("OK: TerraserverCache:resetBackdrop() - tile '" + baseName + "' - loading remote from " + imageUrl);
#endif
}
}
catch (Exception e)
{
LibSys.StatusBar.Error("file '" + imageFileName + "' failed to load on reset: " + e.Message);
}
}
public static Backdrop getBackdrop(TileTerra tile, string baseName)
{
string imageFileName = tileImagePath(baseName);
Backdrop ret = null;
try
{
if(m_backdropCache.ContainsKey(baseName))
{
ret = (Backdrop)m_backdropCache[baseName]; // may be IsEmpty, if proven that can't download
ret.MarkUsed();
//LibSys.StatusBar.Trace("OK: TerraserverCache:getBackdrop() - tile '" + baseName + "' - found in cache - " + ret);
return ret;
}
bool loadedFromFile = false;
if(!Project.reloadRefresh && File.Exists(imageFileName))
{
try
{
ret = new Backdrop(imageFileName, baseName, true);
//LibSys.StatusBar.Trace("OK: TerraserverCache:getBackdrop() - tile '" + baseName + "' - loaded from file");
AddBackdrop(baseName, ret);
loadedFromFile = true;
}
catch {}
}
if(!loadedFromFile && Project.serverAvailable)
{
string imageUrl = getImageUrl(baseName);
if(!m_backdropCache.ContainsKey(baseName))
{
ret = new Backdrop(imageFileName, baseName, false); // fill later
AddBackdrop(baseName, ret);
DownloadThread dt = new DownloadThread();
dt.DownloadUrl = imageUrl;
dt.tile = tile;
dt.baseName = baseName;
dt.fileName = imageFileName;
dt.CompleteCallback += new DownloadCompleteHandler( imageDownloadCompleteCallback );
dt.ProgressCallback += new DownloadProgressHandler( imageDownloadProgressCallback );
dt.addMonitoredMethod = new AddMonitoredMethod(ProgressMonitor.addMonitored);
// tilesBeingLoadedCount++;
//add dt worker method to the thread pool / queue a task
//Project.threadPool.PostRequest (new WorkRequestDelegate (dt.Download), baseName);
ThreadPool2.QueueUserWorkItem (new WaitCallback (dt.Download), baseName);
#if DEBUG
LibSys.StatusBar.Trace("OK: TerraserverCache:getBackdrop() - tile '" + baseName + "' - loading remote from " + imageUrl);
#endif
}
else
{
//LibSys.StatusBar.Trace("OK: TerraserverCache:getBackdrop() - tile '" + baseName + "' - already in cache");
}
}
}
catch (Exception e)
{
LibSys.StatusBar.Error("file '" + imageFileName + "' failed to load: " + e.Message);
}
// whatever happened before, returning null is not an option.
if(ret == null)
{
ret = new Backdrop(null, baseName, true); // doFill with null name makes it Empty
AddBackdrop(baseName, ret);
}
return ret;
}
public static void AddTerraTile(string baseName, double lngPerTile, double latPerTile, TileTerra tile)
{
if (snapLat == null)
{
snapLng = new SnapList(lngPerTile, false);
snapLat = new SnapList(latPerTile, false);
}
if (!CameraTrack.camTrackTerraTiles.Contains(baseName))
{
CameraTrack.camTrackTerraTiles.Add(baseName);
// adding to snap lists prepares them for calculating snap points:
GeoCoord tl = tile.getTopLeft();
GeoCoord br = tile.getBottomRight();
snapLat.Add(tl.Lat);
snapLat.Add(br.Lat);
snapLng.Add(tl.Lng);
snapLng.Add(br.Lng);
}
}