void bg_DoWork(object sender, DoWorkEventArgs e)
{
MapInfo info = (MapInfo)e.Argument;
if (!info.Area.IsEmpty)
{
string bigImage = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + Path.DirectorySeparatorChar + "GMap at zoom " + info.Zoom + " - " + info.Type + "-" + DateTime.Now.Ticks + ".png";
if (!string.IsNullOrEmpty(textBoxSaveAs.Text))
{
bigImage = Path.Combine(Path.GetDirectoryName(textBoxSaveAs.Text), Path.GetFileName(bigImage));
}
var smallImage = Path.Combine(Path.GetDirectoryName(bigImage), "layer.png");
if (!string.IsNullOrEmpty(textBoxSaveAs.Text))
{
smallImage = textBoxSaveAs.Text;
}
e.Result = bigImage;
// current area
GPoint topLeftPx = info.Type.Projection.FromLatLngToPixel(info.Area.LocationTopLeft, info.Zoom);
GPoint rightButtomPx = info.Type.Projection.FromLatLngToPixel(info.Area.Bottom, info.Area.Right, info.Zoom);
GPoint pxDelta = new GPoint(rightButtomPx.X - topLeftPx.X, rightButtomPx.Y - topLeftPx.Y);
GMap.NET.GSize maxOfTiles = info.Type.Projection.GetTileMatrixMaxXY(info.Zoom);
int shrinkLoop = 0;
int padding = info.MakeWorldFile || info.MakeKmz ? 0 : 22;
{
using (Bitmap bmpDestination = new Bitmap((int)(pxDelta.X + padding * 2), (int)(pxDelta.Y + padding * 2)))
{
using (Graphics gfx = Graphics.FromImage(bmpDestination))
{
gfx.InterpolationMode = InterpolationMode.HighQualityBicubic;
gfx.SmoothingMode = SmoothingMode.HighQuality;
int i = 0;
// get tiles & combine into one
lock (tileArea)
{
foreach (var p in tileArea)
{
if (bg.CancellationPending)
{
e.Cancel = true;
return;
}
int pc = (int)(((double)++i / tileArea.Count) * 100);
bg.ReportProgress(pc, p);
foreach (var tp in info.Type.Overlays)
{
Exception ex;
GMapImage tile;
// tile number inversion(BottomLeft -> TopLeft) for pergo maps
if (tp.InvertedAxisY)
{
tile = GMaps.Instance.GetImageFrom(tp, new GPoint(p.X, maxOfTiles.Height - p.Y), info.Zoom, out ex) as GMapImage;
}
else // ok
{
tile = GMaps.Instance.GetImageFrom(tp, p, info.Zoom, out ex) as GMapImage;
}
if (tile != null)
{
using (tile)
{
long x = p.X * info.Type.Projection.TileSize.Width - topLeftPx.X + padding;
long y = p.Y * info.Type.Projection.TileSize.Width - topLeftPx.Y + padding;
{
gfx.DrawImage(tile.Img, x, y, info.Type.Projection.TileSize.Width, info.Type.Projection.TileSize.Height);
}
}
}
}
}
}
// draw routes
{
foreach (GMapRoute r in Main.routes.Routes)
{
if (r.IsVisible)
{
using (GraphicsPath rp = new GraphicsPath())
{
for (int j = 0; j < r.Points.Count; j++)
{
var pr = r.Points[j];
GPoint px = info.Type.Projection.FromLatLngToPixel(pr.Lat, pr.Lng, info.Zoom);
px.Offset(padding, padding);
px.Offset(-topLeftPx.X, -topLeftPx.Y);
GPoint p2 = px;
if (j == 0)
{
rp.AddLine(p2.X, p2.Y, p2.X, p2.Y);
}
else
{
System.Drawing.PointF p = rp.GetLastPoint();
rp.AddLine(p.X, p.Y, p2.X, p2.Y);
}
}
if (rp.PointCount > 0)
{
gfx.DrawPath(r.Stroke, rp);
}
}
}
}
}
// draw polygons
{
foreach (GMapPolygon r in Main.polygons.Polygons)
{
if (r.IsVisible)
{
using (GraphicsPath rp = new GraphicsPath())
{
for (int j = 0; j < r.Points.Count; j++)
{
var pr = r.Points[j];
GPoint px = info.Type.Projection.FromLatLngToPixel(pr.Lat, pr.Lng, info.Zoom);
px.Offset(padding, padding);
px.Offset(-topLeftPx.X, -topLeftPx.Y);
GPoint p2 = px;
if (j == 0)
{
rp.AddLine(p2.X, p2.Y, p2.X, p2.Y);
}
else
{
System.Drawing.PointF p = rp.GetLastPoint();
rp.AddLine(p.X, p.Y, p2.X, p2.Y);
}
}
if (rp.PointCount > 0)
{
rp.CloseFigure();
gfx.FillPath(r.Fill, rp);
gfx.DrawPath(r.Stroke, rp);
}
}
}
}
}
// draw markers
{
foreach (GMapMarker r in Main.objects.Markers)
{
if (r.IsVisible)
{
var pr = r.Position;
GPoint px = info.Type.Projection.FromLatLngToPixel(pr.Lat, pr.Lng, info.Zoom);
px.Offset(padding, padding);
px.Offset(-topLeftPx.X, -topLeftPx.Y);
px.Offset(r.Offset.X, r.Offset.Y);
gfx.ResetTransform();
gfx.TranslateTransform(-r.LocalPosition.X, -r.LocalPosition.Y);
gfx.TranslateTransform((int)px.X, (int)px.Y);
r.OnRender(gfx);
}
}
// tooltips above
foreach (GMapMarker m in Main.objects.Markers)
{
if (m.IsVisible && m.ToolTip != null && m.IsVisible)
{
if (!string.IsNullOrEmpty(m.ToolTipText))
{
var pr = m.Position;
GPoint px = info.Type.Projection.FromLatLngToPixel(pr.Lat, pr.Lng, info.Zoom);
px.Offset(padding, padding);
px.Offset(-topLeftPx.X, -topLeftPx.Y);
px.Offset(m.Offset.X, m.Offset.Y);
gfx.ResetTransform();
gfx.TranslateTransform(-m.LocalPosition.X, -m.LocalPosition.Y);
gfx.TranslateTransform((int)px.X, (int)px.Y);
m.ToolTip.OnRender(gfx);
}
}
}
gfx.ResetTransform();
}
// draw info
if (!info.MakeWorldFile)
{
System.Drawing.Rectangle rect = new System.Drawing.Rectangle();
{
rect.Location = new System.Drawing.Point(padding, padding);
rect.Size = new System.Drawing.Size((int)pxDelta.X, (int)pxDelta.Y);
}
using (Font f = new Font(FontFamily.GenericSansSerif, 9, FontStyle.Bold))
{
// draw bounds & coordinates
using (Pen p = new Pen(Brushes.DimGray, 3))
{
p.DashStyle = System.Drawing.Drawing2D.DashStyle.DashDot;
gfx.DrawRectangle(p, rect);
string topleft = info.Area.LocationTopLeft.ToString();
SizeF s = gfx.MeasureString(topleft, f);
gfx.DrawString(topleft, f, p.Brush, rect.X + s.Height / 2, rect.Y + s.Height / 2);
string rightBottom = new PointLatLng(info.Area.Bottom, info.Area.Right).ToString();
SizeF s2 = gfx.MeasureString(rightBottom, f);
gfx.DrawString(rightBottom, f, p.Brush, rect.Right - s2.Width - s2.Height / 2, rect.Bottom - s2.Height - s2.Height / 2);
}
// draw scale
using (Pen p = new Pen(Brushes.Blue, 1))
{
double rez = info.Type.Projection.GetGroundResolution(info.Zoom, info.Area.Bottom);
int px100 = (int)(100.0 / rez); // 100 meters
int px1000 = (int)(1000.0 / rez); // 1km
gfx.DrawRectangle(p, rect.X + 10, rect.Bottom - 20, px1000, 10);
gfx.DrawRectangle(p, rect.X + 10, rect.Bottom - 20, px100, 10);
string leftBottom = "scale: 100m | 1Km";
SizeF s = gfx.MeasureString(leftBottom, f);
gfx.DrawString(leftBottom, f, p.Brush, rect.X + 10, rect.Bottom - s.Height - 20);
}
}
}
}
ImageUtilities.SavePng(bigImage, bmpDestination);
Image shrinkImage = null;
try
{
shrinkImage = bmpDestination;
long size;
if (long.TryParse(textBoxSizeFile.Text, out size))
{
var fileLength = new FileInfo(bigImage).Length;
if (fileLength > 0 && (fileLength / 1024 / 1024) > size)
{
while (shrinkLoop <= 100)
{
shrinkLoop++;
int nextWidth = shrinkImage.Width * 80 / 100;
int nextHeight = shrinkImage.Height * 80 / 100;
// Shrink image
shrinkImage = Stuff.FixedSize(shrinkImage, nextWidth, nextHeight);
ImageUtilities.SavePng(smallImage, shrinkImage);
fileLength = new FileInfo(smallImage).Length;
if (fileLength > 0 && (fileLength / 1024 / 1024) < size)
{
break;
}
}
}
else
{
ImageUtilities.SavePng(smallImage, shrinkImage);
}
}
else
{
MessageBox.Show("Invalide size - no shrinking.", "GMap.NET - Demo.WindowsForms", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "GMap.NET - Demo.WindowsForms", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
finally
{
shrinkImage.Dispose();
}
}
}
//The worldfile for the original image is:
//0.000067897543 // the horizontal size of a pixel in coordinate units (longitude degrees in this case);
//0.0000000
//0.0000000
//-0.0000554613012 // the comparable vertical pixel size in latitude degrees, negative because latitude decreases as you go from top to bottom in the image.
//-111.743323868834 // longitude of the pixel in the upper-left-hand corner.
//35.1254392635083 // latitude of the pixel in the upper-left-hand corner.
// generate world file
if (info.MakeWorldFile)
{
string wf = Path.ChangeExtension(bigImage, "pgw");
using (StreamWriter world = File.CreateText(wf))
{
world.WriteLine("{0:0.000000000000}", (info.Area.WidthLng / pxDelta.X));
world.WriteLine("0.0000000");
world.WriteLine("0.0000000");
world.WriteLine("{0:0.000000000000}", (-info.Area.HeightLat / pxDelta.Y));
world.WriteLine("{0:0.000000000000}", info.Area.Left);
world.WriteLine("{0:0.000000000000}", info.Area.Top);
world.Close();
}
wf = Path.ChangeExtension(smallImage, "pgw");
using (StreamWriter world = File.CreateText(wf))
{
world.WriteLine("{0:0.000000000000}", (info.Area.WidthLng / pxDelta.X) * (shrinkLoop > 0 ? Math.Pow(1.25, shrinkLoop) : 1));
world.WriteLine("0.0000000");
world.WriteLine("0.0000000");
world.WriteLine("{0:0.000000000000}", (-info.Area.HeightLat / pxDelta.Y) * (shrinkLoop > 0 ? Math.Pow(1.25, shrinkLoop) : 1));
world.WriteLine("{0:0.000000000000}", info.Area.Left);
world.WriteLine("{0:0.000000000000}", info.Area.Top);
world.Close();
}
}
if (info.MakeKmz)
{
var kmzFile = Path.GetDirectoryName(bigImage) + Path.DirectorySeparatorChar + Path.GetFileNameWithoutExtension(bigImage) + ".kmz";
e.Result = kmzFile;
using (ZipStorer zip = ZipStorer.Create(kmzFile, "GMap.NET"))
{
zip.AddFile(ZipStorer.Compression.Store, bigImage, "files/map.jpg", "map");
using (var readme = new MemoryStream(
Encoding.UTF8.GetBytes(
string.Format(CultureInfo.InvariantCulture, @"<?xml version=""1.0"" encoding=""UTF-8""?>
<kml xmlns=""http://www.opengis.net/kml/2.2"" xmlns:gx=""http://www.google.com/kml/ext/2.2"" xmlns:kml=""http://www.opengis.net/kml/2.2"" xmlns:atom=""http://www.w3.org/2005/Atom"">
<GroundOverlay>
<name>{8}</name>
<LookAt>
<longitude>{6}</longitude>
<latitude>{7}</latitude>
<altitude>0</altitude>
<heading>0</heading>
<tilt>0</tilt>
<range>69327.55500845652</range>
</LookAt>
<color>91ffffff</color>
<Icon>
<href>files/map.jpg</href>
</Icon>
<gx:LatLonQuad>
<coordinates>
{0},{1},0 {2},{3},0 {4},{5},0 {6},{7},0
</coordinates>
</gx:LatLonQuad>
</GroundOverlay>
</kml>", info.Area.Left, info.Area.Bottom,
info.Area.Right, info.Area.Bottom,
info.Area.Right, info.Area.Top,
info.Area.Left, info.Area.Top,
kmzFile))))
{
zip.AddStream(ZipStorer.Compression.Store, "doc.kml", readme, DateTime.Now, "kml");
zip.Close();
}
}
}
}
}