private void SetSpecialScaleStyles(MapWorkspace mapWs, double scale)
{
}
public void ProcessRequest(HttpContext context)
{
httpContext = context;
var WorkspaceFilePath = System.IO.Path.Combine(httpContext.Server.MapPath("~"), "workspace.xml");
MapFolder = System.IO.Path.Combine(httpContext.Server.MapPath("~"), "..", "..", "data");
string mapId = "";
mapWs = new MapWorkspace();
mapWs.XmlRepresentation = File.ReadAllText(WorkspaceFilePath);
mapWs.Map.RenderingSettings.AntiAliasGeometry = true;
mapWs.Map.RenderingSettings.AntiAliasText = true;
// mapWs.Map.CoodrinateSystemWKT = "PROJCS[\"CS_WGS_1984_Major_Auxiliary_Sphere\",GEOGCS[\"WGS_1984_Major_Auxiliary_Sphere\",DATUM[\"WGS_1984_Major_Auxiliary_Sphere\",SPHEROID[\"WGS84\", 6378137, 0]],PRIMEM[\"Greenwich\", 0],UNIT[\"Degree\", 0.0174532925199433]],PROJECTION[\"Mercator\"],PARAMETER[\"latitude_of_origin\", 0],PARAMETER[\"central_meridian\", 0],PARAMETER[\"false_easting\", 0],PARAMETER[\"false_northing\", 0],UNIT[\"metre\", 1, AUTHORITY[\"EPSG\", \"9001\"]],AXIS[\"East\", EAST], AXIS[\"North\", NORTH],AUTHORITY[\"EPSG\", \"102100\"]];";
foreach (LayerBase l in mapWs.Map.Layers)
{
FeatureLayer fl = l as FeatureLayer;
if (fl != null)
{
fl.DataSourceNeeded += LayerDataSourceNeeded;
fl.DataSourceReadyToRelease += LayerDataSourceReadyToRelease;
if (!fl.AreFeaturesAutoLoadable)
fl.LoadFeatures();
}
}
mapWs.Map.FeatureRenderer.SelectionColor = ColorTranslator.FromHtml("#0000FF");
BoundingRectangle bbox = new BoundingRectangle();
if (context.Request.Params.AllKeys.Contains("BBOX",StringComparer.InvariantCultureIgnoreCase))
{
bbox = QueryStringDataExtractor.GetBBox(httpContext.Request.QueryString["BBOX"]);
}
Size displaySize;
double mapScale = 0;
if (context.Request.Params.AllKeys.Contains("WIDTH", StringComparer.InvariantCultureIgnoreCase) && context.Request.Params.AllKeys.Contains("HEIGHT", StringComparer.InvariantCultureIgnoreCase))
{
displaySize = QueryStringDataExtractor.GetDisplaySize(httpContext.Request.QueryString["WIDTH"], httpContext.Request.QueryString["HEIGHT"]);
mapScale = displaySize.Width / bbox.Width;
}
if (context.Request.Params.AllKeys.Contains("LAYERS", StringComparer.InvariantCultureIgnoreCase))
{
string[] layersAliases = context.Request.Params["LAYERS"].Split(',');
foreach (LayerBase l in mapWs.Map.Layers)
l.Visible = layersAliases.Contains(l.Alias);
}
SetSpecialScaleStyles(mapWs, mapScale);
IMapServer server = new WMSServer(new WmsServiceDescription("MapAround Demo", ""));
server.ImageQuality = 95;
server.Map = mapWs.Map;
server.GutterSize = 180;
server.BeforeRenderNewImage += server_BeforeRenderNewImage;
FileTileCacheAccessor tileCacheAccessor =
new FileTileCacheAccessor(Path.Combine(HttpContext.Current.Server.MapPath("~"), "map\\cache"));
tileCacheAccessor.Prefix = TileCacheKeyPrefix;
// tileCacheAccessor.IsHierarchic = true;
server.TileCacheAccessor = tileCacheAccessor;
string mime = string.Empty;
context.Response.Clear();
server.GetResponse(context.Request.Params, context.Response.OutputStream, out mime);
context.Response.ContentType = mime;
context.Response.Cache.SetCacheability(HttpCacheability.Public);
context.Response.Cache.SetMaxAge(new TimeSpan(24, 0, 0));
server.BeforeRenderNewImage -= server_BeforeRenderNewImage;
context.Response.End();
}
private void setWorkspace(MapWorkspace workspace)
{
int MapWidth = (int)Width.Value;
int MapHeight = (int)Height.Value;
Context.Session[WorkspaceUniqString] = workspace;
if (workspace.Map != null)
{
foreach (LayerBase l in workspace.Map.Layers)
{
FeatureLayer fl = l as FeatureLayer;
if (fl != null)
{
fl.DataSourceNeeded += dataSourceNeeded;
fl.DataSourceReadyToRelease += dataSourceReadyToRelease;
fl.BeforePointRender += beforePointRender;
fl.BeforePolylineRender += beforePolylineRender;
fl.BeforePolygonRender += beforePolygonRender;
if (!fl.AreFeaturesAutoLoadable)
fl.LoadFeatures();
}
}
}
// the aspect ratio of the viewport maps may not match the aspect ratio of viewbox, read from the workspace.
// to correct it.
double dx = 0, dy = 0;
if (workspace.ViewBox.IsEmpty())
throw new InvalidOperationException("View box should be set in the workspace.");
if (MapWidth / MapHeight > workspace.ViewBox.Width / workspace.ViewBox.Height)
dy = -(workspace.ViewBox.Height - (double)MapHeight / (double)MapWidth * workspace.ViewBox.Width);
else
dx = -(workspace.ViewBox.Width - (double)MapWidth / (double)MapHeight * workspace.ViewBox.Height);
workspace.ViewBox = new BoundingRectangle(workspace.ViewBox.MinX,
workspace.ViewBox.MinY,
workspace.ViewBox.MaxX + dx,
workspace.ViewBox.MaxY + dy);
}
