using System;

using System.Configuration;

using System.Drawing;

using System.Drawing.Drawing2D;

using System.Drawing.Text;

using System.Web;

using SharpMap;

using SharpMap.Data.Providers;

using SharpMap.Layers;

using SharpMap.Rendering;

using SharpMap.Rendering.Thematics;

using SharpMap.Styles;

using ColorBlend=SharpMap.Rendering.Thematics.ColorBlend;

using Point=GeoAPI.Geometries.Coordinate;

/// <summary>

/// Summary description for CreateMap

/// </summary>

public class MapHelper

{

static MapHelper()

{

var gss = GeoAPI.GeometryServiceProvider.Instance;

var css = new SharpMap.CoordinateSystems.CoordinateSystemServices(

new ProjNet.CoordinateSystems.CoordinateSystemFactory(System.Text.Encoding.ASCII),

new ProjNet.CoordinateSystems.Transformations.CoordinateTransformationFactory(),

SharpMap.Converters.WellKnownText.SpatialReference.GetAllReferenceSystems());

GeoAPI.GeometryServiceProvider.Instance = gss;

SharpMap.Session.Instance

.SetGeometryServices(gss)

.SetCoordinateSystemServices(css)

.SetCoordinateSystemRepository(css);

}

public static Map InitializeMap(Size size)

{

HttpContext.Current.Trace.Write("Initializing map...");

//Initialize a new map of size 'imagesize'

Map map = new Map(size);

//Set up the countries layer

VectorLayer layCountries = new VectorLayer("Countries");

//Set the datasource to a shapefile in the App_data folder

layCountries.DataSource = new ShapeFile(HttpContext.Current.Server.MapPath(@"~\App_data\countries.shp"), true);

//Set fill-style to green

layCountries.Style.Fill = new SolidBrush(Color.Green);

//Set the polygons to have a black outline

layCountries.Style.Outline = Pens.Black;

layCountries.Style.EnableOutline = true;

layCountries.SRID = 4326;

//Set up a river layer

VectorLayer layRivers = new VectorLayer("Rivers");

//Set the datasource to a shapefile in the App_data folder

layRivers.DataSource = new ShapeFile(HttpContext.Current.Server.MapPath(@"~\App_data\rivers.shp"), true);

//Define a blue 1px wide pen

layRivers.Style.Line = new Pen(Color.Blue, 1);

layRivers.SRID = 4326;

//Set up a river layer

VectorLayer layCities = new VectorLayer("Cities");

//Set the datasource to a shapefile in the App_data folder

layCities.DataSource = new ShapeFile(HttpContext.Current.Server.MapPath(@"~\App_data\cities.shp"), true);

//Define a blue 1px wide pen

//layCities.Style.Symbol = new Bitmap(HttpContext.Current.Server.MapPath(@"~\App_data\icon.png"));

layCities.Style.SymbolScale = 0.8f;

layCities.MaxVisible = 40;

layCities.SRID = 4326;

//Set up a country label layer

LabelLayer layLabel = new LabelLayer("Country labels");

layLabel.DataSource = layCountries.DataSource;

layLabel.Enabled = true;

layLabel.LabelColumn = "Name";

layLabel.Style = new LabelStyle();

layLabel.Style.ForeColor = Color.White;

layLabel.Style.Font = new Font(FontFamily.GenericSerif, 12);

layLabel.Style.BackColor = new SolidBrush(Color.FromArgb(128, 255, 0, 0));

layLabel.MaxVisible = 90;

layLabel.MinVisible = 30;

layLabel.Style.HorizontalAlignment = LabelStyle.HorizontalAlignmentEnum.Center;

layLabel.SRID = 4326;

layLabel.MultipartGeometryBehaviour = LabelLayer.MultipartGeometryBehaviourEnum.Largest;

//Set up a city label layer

LabelLayer layCityLabel = new LabelLayer("City labels");

layCityLabel.DataSource = layCities.DataSource;

layCityLabel.Enabled = true;

layCityLabel.LabelColumn = "Name";

layCityLabel.Style = new LabelStyle();

layCityLabel.Style.ForeColor = Color.Black;

layCityLabel.Style.Font = new Font(FontFamily.GenericSerif, 11);

layCityLabel.MaxVisible = layLabel.MinVisible;

layCityLabel.Style.HorizontalAlignment = LabelStyle.HorizontalAlignmentEnum.Left;

layCityLabel.Style.VerticalAlignment = LabelStyle.VerticalAlignmentEnum.Bottom;

layCityLabel.Style.Offset = new PointF(3, 3);

layCityLabel.Style.Halo = new Pen(Color.Yellow, 2);

layCityLabel.TextRenderingHint = TextRenderingHint.AntiAlias;

layCityLabel.SmoothingMode = SmoothingMode.AntiAlias;

layCityLabel.SRID = 4326;

layCityLabel.LabelFilter = LabelCollisionDetection.ThoroughCollisionDetection;

layCityLabel.Style.CollisionDetection = true;

//Add the layers to the map object.

//The order we add them in are the order they are drawn, so we add the rivers last to put them on top

map.Layers.Add(layCountries);

map.Layers.Add(layRivers);

map.Layers.Add(layCities);

map.Layers.Add(layLabel);

map.Layers.Add(layCityLabel);

//limit the zoom to 360 degrees width

map.MaximumZoom = 360;

map.BackColor = Color.LightBlue;

map.Zoom = 360;

map.Center = new Point(0, 0);

HttpContext.Current.Trace.Write("Map initialized");

return map;

}

public static Map InitializeGradientMap(Size size)

{

//Initialize a new map based on the simple map

Map map = InitializeMap(size);

//Set a gradient theme on the countries layer, based on Population density

//First create two styles that specify min and max styles

//In this case we will just use the default values and override the fill-colors

//using a colorblender. If different line-widths, line- and fill-colors where used

//in the min and max styles, these would automatically get linearly interpolated.

VectorStyle min = new VectorStyle();

VectorStyle max = new VectorStyle();

//Create theme using a density from 0 (min) to 400 (max)

GradientTheme popdens = new GradientTheme("PopDens", 0, 400, min, max);

//We can make more advanced coloring using the ColorBlend'er.

//Setting the FillColorBlend will override any fill-style in the min and max fills.

//In this case we just use the predefined Rainbow colorscale

popdens.FillColorBlend = ColorBlend.Rainbow5;

(map.Layers[0] as VectorLayer).Theme = popdens;

//Lets scale the labels so that big countries have larger texts as well

LabelStyle lblMin = new LabelStyle();

LabelStyle lblMax = new LabelStyle();

lblMin.ForeColor = Color.Black;

lblMin.Font = new Font(FontFamily.GenericSerif, 6);

lblMax.ForeColor = Color.Blue;

lblMax.BackColor = new SolidBrush(Color.FromArgb(128, 255, 255, 255));

lblMin.BackColor = lblMax.BackColor;

lblMax.Font = new Font(FontFamily.GenericSerif, 9);

(map.Layers[3] as LabelLayer).Theme = new GradientTheme("PopDens", 0, 400, lblMin, lblMax);

//Lets scale city icons based on city population

//cities below 1.000.000 gets the smallest symbol, and cities with more than 5.000.000 the largest symbol

VectorStyle citymin = new VectorStyle();

VectorStyle citymax = new VectorStyle();

citymin.Symbol = new Bitmap(HttpContext.Current.Server.MapPath(@"~\App_data\icon.png"));

citymin.SymbolScale = 0.5f;

citymax.Symbol = new Bitmap(HttpContext.Current.Server.MapPath(@"~\App_data\icon.png"));

citymax.SymbolScale = 1f;

(map.Layers[2] as VectorLayer).Theme = new GradientTheme("Population", 1000000, 5000000, citymin, citymax);

//Turn off the river layer

map.Layers[1].Enabled = false;

return map;

}

public static WmsLayer GetWmsLayer()

{

string wmsUrl = "http://www2.demis.nl/worldmap/wms.asp";

WmsLayer layWms = new WmsLayer("Demis Map", wmsUrl);

layWms.AddLayer("Bathymetry");

//layWms.AddLayer("Coastlines");

//layWms.AddLayer("Countries");

//layWms.AddLayer("Rivers");

//layWms.AddLayer("Streams");

layWms.AddLayer("Ocean features");

layWms.SetImageFormat(layWms.OutputFormats[0]);

layWms.ContinueOnError = true;

//Skip rendering the WMS Map if the server couldn't be requested (if set to false such an event would crash the app)

layWms.TimeOut = 5000; //Set timeout to 5 seconds

layWms.SRID = 4326;

return layWms;

}

public static Map InitializeWmsMap(Size size)

{

HttpContext.Current.Trace.Write("Initializing Wms map...");

//Initialize a new map of size 'imagesize'

Map map = new Map(size);

WmsLayer layWms = GetWmsLayer();

//Set up the countries layer

VectorLayer layCountries = new VectorLayer("Countries");

//Set the datasource to a shapefile in the App_data folder

layCountries.DataSource = new ShapeFile(HttpContext.Current.Server.MapPath(@"~\App_data\countries.shp"), true);

//Set fill-style to green

layCountries.Style.Fill = new SolidBrush(Color.Green);

//Set the polygons to have a black outline

layCountries.Style.Outline = Pens.Yellow;

layCountries.Style.EnableOutline = true;

layCountries.SRID = 4326;

//Set up a country label layer

LabelLayer layLabel = new LabelLayer("Country labels");

layLabel.DataSource = layCountries.DataSource;

layLabel.Enabled = true;

layLabel.LabelColumn = "Name";

layLabel.Style = new LabelStyle();

layLabel.Style.ForeColor = Color.White;

layLabel.Style.Font = new Font(FontFamily.GenericSerif, 8);

layLabel.Style.BackColor = new SolidBrush(Color.FromArgb(128, 255, 0, 0));

layLabel.MaxVisible = 90;

layLabel.MinVisible = 30;

layLabel.Style.HorizontalAlignment = LabelStyle.HorizontalAlignmentEnum.Center;

layLabel.SRID = 4326;

//Add the layers to the map object.

//The order we add them in are the order they are drawn, so we add the rivers last to put them on top

map.Layers.Add(layWms);

map.Layers.Add(layCountries);

map.Layers.Add(layLabel);

//limit the zoom to 360 degrees width

map.MaximumZoom = 360;

map.BackColor = Color.LightBlue;

map.Zoom = 360;

map.Center = new Point(0, 0);

HttpContext.Current.Trace.Write("Map initialized");

return map;

}

public static Map InitializeMapOgr(Size size)

{

HttpContext.Current.Trace.Write("Initializing map...");

//Initialize a new map of size 'imagesize'

Map map = new Map(size);

//Set up the countries layer

VectorLayer layCountries = new VectorLayer("Countries");

//Set the datasource to a shapefile in the App_data folder

try

{

layCountries.DataSource =

new Ogr(HttpContext.Current.Server.MapPath(@"~\App_data\MapInfo\countriesMapInfo.tab"));

}

catch (TypeInitializationException ex)

{

if (ex.GetType() == typeof (TypeInitializationException))

throw new Exception(

"Please copy the umanaged dll's into your bin folder from javascript:window.location.href='http://www.codeplex.com/SharpMap/Wiki/View.aspx?title=Extensions';.");

}

catch (Exception ex)

{

throw;

}

//Set fill-style to green

layCountries.Style.Fill = new SolidBrush(Color.Green);

//Set the polygons to have a black outline

layCountries.Style.Outline = Pens.Black;

layCountries.Style.EnableOutline = true;

layCountries.SRID = 4326;

//Set up a river layer

VectorLayer layRivers = new VectorLayer("Rivers");

//Set the datasource to a shapefile in the App_data folder

layRivers.DataSource = new Ogr(HttpContext.Current.Server.MapPath(@"~\App_data\MapInfo\riversMapInfo.tab"));

//Define a blue 1px wide pen

layRivers.Style.Line = new Pen(Color.Blue, 1);

layRivers.SRID = 4326;

//Set up a river layer

VectorLayer layCities = new VectorLayer("Cities");

//Set the datasource to a shapefile in the App_data folder

layCities.DataSource = new Ogr(HttpContext.Current.Server.MapPath(@"~\App_data\MapInfo\citiesMapInfo.tab"));

//Define a blue 1px wide pen

//layCities.Style.Symbol = new Bitmap(HttpContext.Current.Server.MapPath(@"~\App_data\icon.png"));

layCities.Style.SymbolScale = 0.8f;

layCities.MaxVisible = 40;

layCities.SRID = 4326;

//Set up a country label layer

LabelLayer layLabel = new LabelLayer("Country labels");

layLabel.DataSource = layCountries.DataSource;

layLabel.Enabled = true;

layLabel.LabelColumn = "Name";

layLabel.Style = new LabelStyle();

layLabel.Style.ForeColor = Color.White;

layLabel.Style.Font = new Font(FontFamily.GenericSerif, 12);

layLabel.Style.BackColor = new SolidBrush(Color.FromArgb(128, 255, 0, 0));

layLabel.MaxVisible = 90;

layLabel.MinVisible = 30;

layLabel.Style.HorizontalAlignment = LabelStyle.HorizontalAlignmentEnum.Center;

layLabel.SRID = 4326;

layLabel.MultipartGeometryBehaviour = LabelLayer.MultipartGeometryBehaviourEnum.Largest;

//Set up a city label layer

LabelLayer layCityLabel = new LabelLayer("City labels");

layCityLabel.DataSource = layCities.DataSource;

layCityLabel.Enabled = true;

layCityLabel.LabelColumn = "Name";

layCityLabel.Style = new LabelStyle();

layCityLabel.Style.ForeColor = Color.Black;

layCityLabel.Style.Font = new Font(FontFamily.GenericSerif, 11);

layCityLabel.MaxVisible = layLabel.MinVisible;

layCityLabel.Style.HorizontalAlignment = LabelStyle.HorizontalAlignmentEnum.Left;

layCityLabel.Style.VerticalAlignment = LabelStyle.VerticalAlignmentEnum.Bottom;

layCityLabel.Style.Offset = new PointF(3, 3);

layCityLabel.Style.Halo = new Pen(Color.Yellow, 2);

layCityLabel.TextRenderingHint = TextRenderingHint.AntiAlias;

layCityLabel.SmoothingMode = SmoothingMode.AntiAlias;

layCityLabel.SRID = 4326;

layCityLabel.LabelFilter = LabelCollisionDetection.ThoroughCollisionDetection;

layCityLabel.Style.CollisionDetection = true;

//Add the layers to the map object.

//The order we add them in are the order they are drawn, so we add the rivers last to put them on top

map.Layers.Add(layCountries);

map.Layers.Add(layRivers);

map.Layers.Add(layCities);

map.Layers.Add(layLabel);

map.Layers.Add(layCityLabel);

//limit the zoom to 360 degrees width

map.MaximumZoom = 360;

map.BackColor = Color.LightBlue;

map.ZoomToExtents(); // = 360;

map.Center = new Point(0, 0);

HttpContext.Current.Trace.Write("Map initialized");

return map;

}

public static Map InitializeMapMsSqlSpatial(Size size)

{

HttpContext.Current.Trace.Write("Initializing map...");

string connectionString = ConfigurationManager.ConnectionStrings["mssqlspatial"].ConnectionString;

//Initialize a new map of size 'imagesize'

Map map = new Map(size);

if ( connectionString.Contains("server=XXXXXXXXXXX" ) )

throw new ArgumentException("You need to adjust the connectionstring to MsSqlSpatial Server");

//Set up the countries layer

VectorLayer layCountries = new VectorLayer("Countries");

//Set the datasource to a new MsSqlSpatialProvider

layCountries.DataSource = new MsSqlSpatial(connectionString, "Countries", "Geometry", "oid");

//Set fill-style to green

layCountries.Style.Fill = new SolidBrush(Color.Green);

//Set the polygons to have a black outline

layCountries.Style.Outline = Pens.Black;

layCountries.Style.EnableOutline = true;

layCountries.SRID = 4326;

//Set up a river layer

VectorLayer layRivers = new VectorLayer("Rivers");

//Set the datasource to a new MsSqlSpatialProvider

layRivers.DataSource = new MsSqlSpatial(connectionString, "Rivers", "Geometry", "oid");

//Define a blue 1px wide pen

layRivers.Style.Line = new Pen(Color.Blue, 1);

layRivers.SRID = 4326;

//Set up a river layer

VectorLayer layCities = new VectorLayer("Cities");

//Set the datasource to a new MsSqlSpatialProvider

layCities.DataSource = new MsSqlSpatial(connectionString, "Cities", "Geometry", "oid");

;

//Define a blue 1px wide pen

//layCities.Style.Symbol = new Bitmap(HttpContext.Current.Server.MapPath(@"~\App_data\icon.png"));

layCities.Style.SymbolScale = 0.8f;

layCities.MaxVisible = 40;

layCities.SRID = 4326;

//Set up a country label layer

LabelLayer layLabel = new LabelLayer("Country labels");

layLabel.DataSource = layCountries.DataSource;

layLabel.Enabled = true;

layLabel.LabelColumn = "Name";

layLabel.Style = new LabelStyle();

layLabel.Style.ForeColor = Color.White;

layLabel.Style.Font = new Font(FontFamily.GenericSerif, 12);

layLabel.Style.BackColor = new SolidBrush(Color.FromArgb(128, 255, 0, 0));

layLabel.MaxVisible = 90;

layLabel.MinVisible = 30;

layLabel.Style.HorizontalAlignment = LabelStyle.HorizontalAlignmentEnum.Center;

layLabel.SRID = 4326;

layLabel.MultipartGeometryBehaviour = LabelLayer.MultipartGeometryBehaviourEnum.Largest;

//Set up a city label layer

LabelLayer layCityLabel = new LabelLayer("City labels");

layCityLabel.DataSource = layCities.DataSource;

layCityLabel.Enabled = true;

layCityLabel.LabelColumn = "Name";

layCityLabel.Style = new LabelStyle();

layCityLabel.Style.ForeColor = Color.Black;

layCityLabel.Style.Font = new Font(FontFamily.GenericSerif, 11);

layCityLabel.MaxVisible = layLabel.MinVisible;

layCityLabel.Style.HorizontalAlignment = LabelStyle.HorizontalAlignmentEnum.Left;

layCityLabel.Style.VerticalAlignment = LabelStyle.VerticalAlignmentEnum.Bottom;

layCityLabel.Style.Offset = new PointF(3, 3);

layCityLabel.Style.Halo = new Pen(Color.Yellow, 2);

layCityLabel.TextRenderingHint = TextRenderingHint.AntiAlias;

layCityLabel.SmoothingMode = SmoothingMode.AntiAlias;

layCityLabel.SRID = 4326;

layCityLabel.LabelFilter = LabelCollisionDetection.ThoroughCollisionDetection;

layCityLabel.Style.CollisionDetection = true;

//Add the layers to the map object.

//The order we add them in are the order they are drawn, so we add the rivers last to put them on top

map.Layers.Add(layCountries);

map.Layers.Add(layRivers);

map.Layers.Add(layCities);

map.Layers.Add(layLabel);

map.Layers.Add(layCityLabel);

//limit the zoom to 360 degrees width

map.MaximumZoom = 360;

map.BackColor = Color.LightBlue;

map.Zoom = 360;

map.Center = new Point(0, 0);

HttpContext.Current.Trace.Write("Map initialized");

return map;

}

public static Map InitializeMapPostGis(Size size)

{

HttpContext.Current.Trace.Write("Initializing map...");

string connectionString = ConfigurationManager.ConnectionStrings["postgis"].ConnectionString;

//Initialize a new map of size 'imagesize'

SharpMap.Map map = new SharpMap.Map(size);

//Set up the countries layer

SharpMap.Layers.VectorLayer layCountries = new SharpMap.Layers.VectorLayer("Countries");

//Set the datasource to a new MsSqlSpatialProvider

layCountries.DataSource = new SharpMap.Data.Providers.PostGIS(connectionString, "countries", "wkb_geometry", "ogc_fid");

//Set fill-style to green

layCountries.Style.Fill = new SolidBrush(Color.Green);

//Set the polygons to have a black outline

layCountries.Style.Outline = System.Drawing.Pens.Black;

layCountries.Style.EnableOutline = true;

//Set up a river layer

SharpMap.Layers.VectorLayer layRivers = new SharpMap.Layers.VectorLayer("Rivers");

//Set the datasource to a new MsSqlSpatialProvider

layRivers.DataSource = new SharpMap.Data.Providers.PostGIS(connectionString, "rivers", "wkb_geometry", "ogc_fid");

//Define a blue 1px wide pen

layRivers.Style.Line = new Pen(Color.Blue, 1);

//Set up a river layer

SharpMap.Layers.VectorLayer layCities = new SharpMap.Layers.VectorLayer("Cities");

//Set the datasource to a new MsSqlSpatialProvider

layCities.DataSource = new SharpMap.Data.Providers.PostGIS(connectionString, "cities", "wkb_geometry", "ogc_fid"); ;

//Define a blue 1px wide pen

//layCities.Style.Symbol = new Bitmap(HttpContext.Current.Server.MapPath(@"~\App_data\icon.png"));

layCities.Style.SymbolScale = 0.8f;

layCities.MaxVisible = 40;

//Set up a country label layer

SharpMap.Layers.LabelLayer layLabel = new SharpMap.Layers.LabelLayer("Country labels");

layLabel.DataSource = layCountries.DataSource;

layLabel.Enabled = true;

layLabel.LabelColumn = "Name";

layLabel.MaxVisible = 90;

layLabel.MinVisible = 30;

layLabel.MultipartGeometryBehaviour = SharpMap.Layers.LabelLayer.MultipartGeometryBehaviourEnum.Largest;

layLabel.LabelFilter = SharpMap.Rendering.LabelCollisionDetection.ThoroughCollisionDetection;

layLabel.PriorityColumn = "popdens";

layLabel.Style = new SharpMap.Styles.LabelStyle();

layLabel.Style.ForeColor = Color.White;

layLabel.Style.Font = new Font(FontFamily.GenericSerif, 12);

layLabel.Style.BackColor = new System.Drawing.SolidBrush(Color.FromArgb(128, 255, 0, 0));

layLabel.Style.HorizontalAlignment = SharpMap.Styles.LabelStyle.HorizontalAlignmentEnum.Center;

layLabel.Style.CollisionDetection = true;

//Set up a city label layer

SharpMap.Layers.LabelLayer layCityLabel = new SharpMap.Layers.LabelLayer("City labels");

layCityLabel.DataSource = layCities.DataSource;

layCityLabel.Enabled = true;

layCityLabel.LabelColumn = "name";

layCityLabel.PriorityColumn = "population";

layCityLabel.PriorityDelegate = delegate(SharpMap.Data.FeatureDataRow fdr)

{

Int32 retVal = 10000000 * (Int32)((String)fdr["capital"] == "Y" ? 1 : 0);

return retVal + Convert.ToInt32(fdr["population"]);

};

layCityLabel.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;

layCityLabel.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;

layCityLabel.LabelFilter = SharpMap.Rendering.LabelCollisionDetection.ThoroughCollisionDetection;

layCityLabel.Style = new SharpMap.Styles.LabelStyle();

layCityLabel.Style.ForeColor = Color.Black;

layCityLabel.Style.Font = new Font(FontFamily.GenericSerif, 11);

layCityLabel.Style.MaxVisible = layLabel.MinVisible;

layCityLabel.Style.HorizontalAlignment = SharpMap.Styles.LabelStyle.HorizontalAlignmentEnum.Left;

layCityLabel.Style.VerticalAlignment = SharpMap.Styles.LabelStyle.VerticalAlignmentEnum.Bottom;

layCityLabel.Style.Offset = new PointF(3, 3);

layCityLabel.Style.Halo = new Pen(Color.Yellow, 2);

layCityLabel.Style.CollisionDetection = true;

//Add the layers to the map object.

//The order we add them in are the order they are drawn, so we add the rivers last to put them on top

map.Layers.Add(layCountries);

map.Layers.Add(layRivers);

map.Layers.Add(layCities);

map.Layers.Add(layLabel);

map.Layers.Add(layCityLabel);

//limit the zoom to 360 degrees width

map.MaximumZoom = 360;

map.BackColor = Color.LightBlue;

map.Zoom = 360;

map.Center = new Point(0, 0);

HttpContext.Current.Trace.Write("Map initialized");

return map;

}

public static Map InitializeMapGdal(Size size)

{

HttpContext.Current.Trace.Write("Initializing map...");

//Initialize a new map of size 'imagesize'

Map map = new Map(size);

//Set up the gdal layer

LayerGroup g = new LayerGroup("OS");

g.SRID = 27700;

//D:\Raster\Ordnance Survey\OS Street View SM\data\sm

System.IO.DirectoryInfo di = new System.IO.DirectoryInfo(HttpContext.Current.Server.MapPath(@"~\App_Data\Gdal"));

foreach (System.IO.FileInfo fi in di.GetFiles("*.tif"))

{

try

{

SharpMap.Layers.GdalRasterLayer layer =

new SharpMap.Layers.GdalRasterLayer(

fi.Name, HttpContext.Current.Server.MapPath(@"~\App_Data\Gdal\" + fi.Name));

//layer.SRID = 27700;

g.Layers.Add(layer);

}

catch (TypeInitializationException ex)

{

throw new Exception(

"Please copy the umanaged dll's into your bin folder from javascript:window.location.href='http://www.codeplex.com/SharpMap/Wiki/View.aspx?title=Extensions';.");

}

}

map.Layers.Add(g);

map.ZoomToExtents();

HttpContext.Current.Trace.Write("Map initialized");

return map;

}

}