/// <summary>
/// project inworld coordinates to image coordinates
/// </summary>
/// <param name="agentPos">inworld coordinate of avatar in a region</param>
/// <param name="bbox">requested region bounding box</param>
/// <param name="width">image width</param>
/// <param name="height">image height</param>
/// <returns></returns>
internal static PointF Projection(ref PointF agentPos, ref BBox bbox, int width, int height)
{
PointF result = new PointF();
result.X = (agentPos.X - bbox.MinX) * width / bbox.Width;
result.Y = height - (agentPos.Y - bbox.MinY) * height / bbox.Height;
return result;
}
public void Extends(BBox bbox)
{
MinX = Math.Min(MinX, bbox.MinX);
MinY = Math.Min(MinY, bbox.MinY);
MaxX = Math.Max(MaxX, bbox.MaxX);
MaxY = Math.Max(MaxY, bbox.MaxY);
}
public string owsHandler(string request, string path, string param,
OSHttpRequest httpRequest, OSHttpResponse httpResponse)
{
switch (httpRequest.QueryString["SERVICE"])
{
case "WMS":
if (httpRequest.QueryString["REQUEST"] == "GetMap")
{
//parse query string
string[] layers = httpRequest.QueryString["LAYERS"].Split(',');
BBox bbox = new BBox(httpRequest.QueryString["BBOX"]);
int height = Int32.Parse(httpRequest.QueryString["HEIGHT"]);
int width = Int32.Parse(httpRequest.QueryString["WIDTH"]);
int elevation = Int32.Parse(httpRequest.QueryString["ELEVATION"]);
string regionID = httpRequest.QueryString["REGIONID"];
Bitmap objLayer = new Bitmap(width, height);
float scale = (float)height / bbox.Width;
float tmpScale = scale;
string queryPath = "mapCache//";
float diff = 10000.0f;
foreach (float s in m_scales)
{
float tmp = Math.Abs(scale - s);
if (diff > tmp)
{
diff = tmp;
tmpScale = s;
}
}
scale = tmpScale;
queryPath += scale.ToString() + "//" + regionID + "//";
int section = 0;
try
{
section = m_sections[scale];
}
catch (Exception e)
{
m_log.ErrorFormat("[WebMapService]: No such scale in list");
}
float tileSize = scale * section;
//Get tiles included in the BBOX and merge them together
int blockMinX = bbox.MinX / section * section;
int blockMinY = bbox.MinY / section * section;
int blockMaxX = (bbox.MaxX - 1) / section * section;
int blockMaxY = (bbox.MaxY - 1) / section * section;
Graphics gfx = Graphics.FromImage(objLayer);
gfx.InterpolationMode = InterpolationMode.HighQualityBicubic;
for (int y = blockMinY; y <= blockMaxY; y += section)
{
for (int x = blockMinX; x <= blockMaxX; x += section)
{
string tileName = queryPath + Utility.IntToLong(x, y);
Bitmap tile = null;
try
{
tile = new Bitmap(tileName);
}
catch (Exception e)
{
m_log.ErrorFormat("[WebMapService]: Tile file not found with {0} {1}", e.Message, e.StackTrace);
tile = new Bitmap((int)tileSize, (int)tileSize);
Graphics g = Graphics.FromImage(tile);
g.Clear(Color.Blue);
g.Dispose();
}
//Calculate boundary of tiles and map
int tileLeftX, tileRightX, tileBottomY, tileUpY;
int mapLeftX, mapRightX, mapBottomY, mapUpY;
int difLeftX = bbox.MinX - x;
int difRightX = bbox.MaxX - (x + section);
int difBottomY = bbox.MinY - y;
int difUpY = bbox.MaxY - (y + section);
if (difLeftX > 0)
{
tileLeftX = difLeftX; mapLeftX = 0;
}
else
{
tileLeftX = 0; mapLeftX = -difLeftX;
}
if (difRightX > 0)
{
tileRightX = section; mapRightX = bbox.Width - difRightX;
}
else
{
tileRightX = section + difRightX; mapRightX = bbox.Width;
}
if (difBottomY > 0)
{
tileBottomY = section - difBottomY; mapBottomY = bbox.Height;
}
else
{
tileBottomY = section; mapBottomY = bbox.Height + difBottomY;
}
if (difUpY > 0)
{
tileUpY = 0; mapUpY = difUpY;
}
else
{
tileUpY = -difUpY; mapUpY = 0;
}
try
{
RectangleF srcRec = new RectangleF((float)tileLeftX / section * tileSize, (float)tileUpY / section * tileSize, (float)(tileRightX - tileLeftX) / section * tileSize, (float)(tileBottomY - tileUpY) / section * tileSize);
RectangleF destRec = new RectangleF((float)mapLeftX / bbox.Width * width, (float)mapUpY / bbox.Height * height, (float)(mapRightX - mapLeftX) / bbox.Width * width, (float)(mapBottomY - mapUpY) / bbox.Height * height);
gfx.DrawImage(tile, destRec, srcRec, GraphicsUnit.Pixel);
tile.Dispose();
}
catch (Exception e)
{
tile.Dispose();
m_log.ErrorFormat("[WebMapService]: Failed to cut and merge tiles with {0} {1}", e.Message, e.StackTrace);
}
}
}
gfx.Dispose();
System.IO.MemoryStream stream = new System.IO.MemoryStream();
objLayer.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
objLayer.Dispose();
byte[] byteImage = stream.ToArray();
stream.Close();
stream.Dispose();
httpResponse.ContentType = "image/png";
return(Convert.ToBase64String(byteImage));
}
else if (httpRequest.QueryString["REQUEST"] == "GetCapabilities")
{
httpResponse.ContentType = "text/xml";
string capDes = "";
TextReader textReader = new StreamReader("Capability.xml");
capDes = textReader.ReadToEnd();
textReader.Close();
return(capDes);
}
else
{
return("Sorry, the request method is not supported by this service.");
}
case "WFS":
if (httpRequest.QueryString["REQUEST"] == "DescribeFeatureType")
{
if ((httpRequest.QueryString["TYPENAME"] == "agent"))
{
switch (httpRequest.QueryString["FORMAT"])
{
case "text":
string textResult = null;
foreach (MapRegion region in m_regions)
{
textResult += region.GetFeaturesByText();
}
return(textResult);
case "xml":
string xmlResult = null;
foreach (MapRegion region in m_regions)
{
xmlResult += region.GetFeaturesByXml();
}
return(xmlResult);
default:
return("Feature format not supported");
}
}
else
{
return("Query String is not supported");
}
}
break;
}
return("Unsupported Service");
}
public string owsHandler(string request, string path, string param,
OSHttpRequest httpRequest, OSHttpResponse httpResponse)
{
switch (httpRequest.QueryString["SERVICE"])
{
case "WMS":
if (httpRequest.QueryString["REQUEST"] == "GetMap")
{
//parse query string
string[] layers = httpRequest.QueryString["LAYERS"].Split(',');
BBox bbox = new BBox(httpRequest.QueryString["BBOX"]);
int height = Int32.Parse(httpRequest.QueryString["HEIGHT"]);
int width = Int32.Parse(httpRequest.QueryString["WIDTH"]);
int elevation = Int32.Parse(httpRequest.QueryString["ELEVATION"]);
string regionID = httpRequest.QueryString["REGIONID"];
Bitmap objLayer = new Bitmap(width, height);
float scale = (float)height / bbox.Width;
float tmpScale = scale;
string queryPath = "mapCache//";
float diff = 10000.0f;
foreach (float s in m_scales)
{
float tmp = Math.Abs(scale - s);
if (diff > tmp)
{
diff = tmp;
tmpScale = s;
}
}
scale = tmpScale;
queryPath += scale.ToString() + "//" + regionID + "//";
int section = 0;
try
{
section = m_sections[scale];
}
catch (Exception e)
{
m_log.ErrorFormat("[WebMapService]: No such scale in list");
}
float tileSize = scale * section;
//Get tiles included in the BBOX and merge them together
int blockMinX = bbox.MinX / section * section;
int blockMinY = bbox.MinY / section * section;
int blockMaxX = (bbox.MaxX - 1) / section * section;
int blockMaxY = (bbox.MaxY - 1) / section * section;
Graphics gfx = Graphics.FromImage(objLayer);
gfx.InterpolationMode = InterpolationMode.HighQualityBicubic;
for (int y = blockMinY; y <= blockMaxY; y += section)
for (int x = blockMinX; x <= blockMaxX; x += section)
{
string tileName = queryPath + Utility.IntToLong(x, y);
Bitmap tile = null;
try
{
tile = new Bitmap(tileName);
}
catch (Exception e)
{
m_log.ErrorFormat("[WebMapService]: Tile file not found with {0} {1}", e.Message, e.StackTrace);
tile = new Bitmap((int)tileSize, (int)tileSize);
Graphics g = Graphics.FromImage(tile);
g.Clear(Color.Blue);
g.Dispose();
}
//Calculate boundary of tiles and map
int tileLeftX, tileRightX, tileBottomY, tileUpY;
int mapLeftX, mapRightX, mapBottomY, mapUpY;
int difLeftX = bbox.MinX - x;
int difRightX = bbox.MaxX - (x+section);
int difBottomY = bbox.MinY - y;
int difUpY = bbox.MaxY - (y+section);
if (difLeftX > 0) { tileLeftX = difLeftX; mapLeftX = 0; }
else { tileLeftX = 0; mapLeftX = -difLeftX; }
if (difRightX > 0) { tileRightX = section; mapRightX = bbox.Width - difRightX; }
else { tileRightX = section + difRightX; mapRightX = bbox.Width; }
if (difBottomY > 0) { tileBottomY = section - difBottomY; mapBottomY = bbox.Height; }
else { tileBottomY = section; mapBottomY = bbox.Height + difBottomY; }
if (difUpY > 0) { tileUpY = 0; mapUpY = difUpY; }
else { tileUpY = -difUpY; mapUpY = 0; }
try
{
RectangleF srcRec = new RectangleF((float)tileLeftX / section * tileSize, (float)tileUpY / section * tileSize, (float)(tileRightX - tileLeftX) / section * tileSize, (float)(tileBottomY - tileUpY) / section * tileSize);
RectangleF destRec = new RectangleF((float)mapLeftX / bbox.Width * width, (float)mapUpY / bbox.Height * height, (float)(mapRightX - mapLeftX) / bbox.Width * width, (float)(mapBottomY - mapUpY) / bbox.Height * height);
gfx.DrawImage(tile, destRec, srcRec, GraphicsUnit.Pixel);
tile.Dispose();
}
catch (Exception e)
{
tile.Dispose();
m_log.ErrorFormat("[WebMapService]: Failed to cut and merge tiles with {0} {1}", e.Message, e.StackTrace);
}
}
gfx.Dispose();
System.IO.MemoryStream stream = new System.IO.MemoryStream();
objLayer.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
objLayer.Dispose();
byte[] byteImage = stream.ToArray();
stream.Close();
stream.Dispose();
httpResponse.ContentType = "image/png";
return Convert.ToBase64String(byteImage);
}
else if (httpRequest.QueryString["REQUEST"] == "GetCapabilities")
{
httpResponse.ContentType = "text/xml";
string capDes = "";
TextReader textReader = new StreamReader("Capability.xml");
capDes = textReader.ReadToEnd();
textReader.Close();
return capDes;
}
else
{
return "Sorry, the request method is not supported by this service.";
}
case "WFS":
if (httpRequest.QueryString["REQUEST"] == "DescribeFeatureType")
{
if ((httpRequest.QueryString["TYPENAME"] == "agent"))
{
switch (httpRequest.QueryString["FORMAT"])
{
case "text":
string textResult = null;
foreach (MapRegion region in m_regions)
{
textResult += region.GetFeaturesByText();
}
return textResult;
case "xml":
string xmlResult = null;
foreach (MapRegion region in m_regions)
{
xmlResult += region.GetFeaturesByXml();
}
return xmlResult;
default:
return "Feature format not supported";
}
}
else
return "Query String is not supported";
}
break;
}
return "Unsupported Service";
}
public string owsHandler(string request, string path, string param,
OSHttpRequest httpRequest, OSHttpResponse httpResponse)
{
switch (httpRequest.QueryString["SERVICE"])
{
case "WMS":
if (httpRequest.QueryString["REQUEST"] == "GetMap")
{
//parse query string
string[] layers = httpRequest.QueryString["LAYERS"].Split(',');
BBox bbox = new BBox(httpRequest.QueryString["BBOX"]);
int height = Int32.Parse(httpRequest.QueryString["HEIGHT"]);
int width = Int32.Parse(httpRequest.QueryString["WIDTH"]);
int elevation = Int32.Parse(httpRequest.QueryString["ELEVATION"]);
string regionID = httpRequest.QueryString["REGIONID"];
foreach (MapRegion region in m_regions)
{
if (region.ID == regionID)
{
lock (region)
{
region.Elevation = elevation;
region.MapRegionBBox = bbox;
region.MapRegionImg = new MapRegionImage(width, height);
region.initialize(layers);
Bitmap queryImg = region.generateMapRegionImg();
System.IO.MemoryStream stream = new System.IO.MemoryStream();
queryImg.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
queryImg.Dispose();
byte[] byteImage = stream.ToArray();
stream.Close();
stream.Dispose();
httpResponse.ContentType = "image/png";
return Convert.ToBase64String(byteImage);
}
}
}
httpResponse.ContentType = "text/plain";
return "Something unexpected occurs!";
}
else if (httpRequest.QueryString["REQUEST"] == "GetCapabilities")
{
httpResponse.ContentType = "text/xml";
string capDes = "";
TextReader textReader = new StreamReader("Capability.xml");
capDes = textReader.ReadToEnd();
textReader.Close();
return capDes;
}
else
{
return "Sorry, the request method is not supported by this service.";
}
//case "WFS":
// if (httpRequest.QueryString["REQUEST"] == "GetFeature")
// {
// if ((httpRequest.QueryString["TypeName"] == "agent"))
// {
// switch (httpRequest.QueryString["FORMAT"])
// {
// case "text":
// return m_agentLayer.GetFeaturesByText();
// case "xml":
// return m_agentLayer.GetFeaturesByXML();
// }
// }
// else
// return "Query String is not supported";
// }
// break;
//default:
// return "Unsupport Service";
}
return "Unsupported Service";
}
public string owsHandler(string request, string path, string param,
OSHttpRequest httpRequest, OSHttpResponse httpResponse)
{
switch (httpRequest.QueryString["SERVICE"])
{
case "WMS":
if (httpRequest.QueryString["REQUEST"] == "GetMap")
{
//parse query string
string[] layers = httpRequest.QueryString["LAYERS"].Split(',');
BBox bbox = new BBox(httpRequest.QueryString["BBOX"]);
int height = Int32.Parse(httpRequest.QueryString["HEIGHT"]);
int width = Int32.Parse(httpRequest.QueryString["WIDTH"]);
int elevation = Int32.Parse(httpRequest.QueryString["ELEVATION"]);
string regionID = httpRequest.QueryString["REGIONID"];
foreach (MapRegion region in m_regions)
{
if (region.ID == regionID)
{
lock (region)
{
region.Elevation = elevation;
region.MapRegionBBox = bbox;
region.MapRegionImg = new MapRegionImage(width, height);
region.initialize(layers);
Bitmap queryImg = region.generateMapRegionImg();
System.IO.MemoryStream stream = new System.IO.MemoryStream();
queryImg.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
queryImg.Dispose();
byte[] byteImage = stream.ToArray();
stream.Close();
stream.Dispose();
httpResponse.ContentType = "image/png";
return(Convert.ToBase64String(byteImage));
}
}
}
httpResponse.ContentType = "text/plain";
return("Something unexpected occurs!");
}
else if (httpRequest.QueryString["REQUEST"] == "GetCapabilities")
{
httpResponse.ContentType = "text/xml";
string capDes = "";
TextReader textReader = new StreamReader("Capability.xml");
capDes = textReader.ReadToEnd();
textReader.Close();
return(capDes);
}
else
{
return("Sorry, the request method is not supported by this service.");
}
//case "WFS":
// if (httpRequest.QueryString["REQUEST"] == "GetFeature")
// {
// if ((httpRequest.QueryString["TypeName"] == "agent"))
// {
// switch (httpRequest.QueryString["FORMAT"])
// {
// case "text":
// return m_agentLayer.GetFeaturesByText();
// case "xml":
// return m_agentLayer.GetFeaturesByXML();
// }
// }
// else
// return "Query String is not supported";
// }
// break;
//default:
// return "Unsupport Service";
}
return("Unsupported Service");
}