public string getPlanMapImageAsBase64String(string planID, string imageWidth, string imageHeight)
{
try
{
MgUserInformation userInfo = null;
string mapWebTierInit = ConfigurationManager.AppSettings["MGWebTierInit"].ToString();
MapGuideApi.MgInitializeWebTier(mapWebTierInit);
// Om kartsession finns för applikationssession använd den annars skapa ny kartssitesession
string mapSiteSessionID = null;
if (Session["MapSiteSessionID"] != null)
{
mapSiteSessionID = Session["MapSiteSessionID"].ToString();
userInfo = new MgUserInformation(mapSiteSessionID);
}
else
{
// Initierar kartsite och kartsession
string mapUserName = ConfigurationManager.AppSettings["MGUserName"].ToString();
string mapUserPass = ConfigurationManager.AppSettings["MGUserPass"].ToString();
userInfo = new MgUserInformation(mapUserName, mapUserPass);
MgSite mapSite = new MgSite();
mapSite.Open(userInfo);
userInfo.Dispose();
mapSiteSessionID = mapSite.CreateSession();
//mapSite.Close();
Session["MapSiteSessionID"] = mapSiteSessionID;
userInfo = new MgUserInformation(mapSiteSessionID);
}
//bool test = resSvc.ResourceExists(mapResId);
string mapSurfaceFactor = ConfigurationManager.AppSettings["MGMapSurfaceFactor"].ToString();
string mapRes = ConfigurationManager.AppSettings["MGMapResource"].ToString();
string planRes = ConfigurationManager.AppSettings["MGPlanytorResource"].ToString();
string planClassName = ConfigurationManager.AppSettings["MGPlanytorClassName"].ToString();
string planFilterColumn = ConfigurationManager.AppSettings["MGPlanytorFilterColumn"].ToString();
string planGeometryColumn = ConfigurationManager.AppSettings["MGPlanytorGeometryColumn"].ToString();
string planytorStrokeRgbaColor = ConfigurationManager.AppSettings["MGPlanytorStrokeRgbaColor"].ToString();
string planytorForegroundRgbaColor = ConfigurationManager.AppSettings["MGPlanytorForegroundRgbaColor"].ToString();
string mapImageSizeFromServer = ConfigurationManager.AppSettings["MGMapImageSizeFromServer"].ToString();
// Standardvärde för storlek på kartbild, används om värde ej finns i Settings.config eller skickas in som parametrar i webbmetod
string mapImageWidthPixel = "400";
string mapImageHeightPixel = "300";
// Väljer bredd och höjd på kartbild om värde ska finnas i Settings.config samt indikeras att de ska användas
// annars förväntas värde skickas med i webbmetod
if (mapImageSizeFromServer.ToLower() == "true")
{
mapImageWidthPixel = ConfigurationManager.AppSettings["MGMapImageWidth"].ToString();
mapImageHeightPixel = ConfigurationManager.AppSettings["MGMapImageHeight"].ToString();
}
else
{
if (!string.IsNullOrWhiteSpace(imageWidth) && !string.IsNullOrWhiteSpace(imageHeight))
{
mapImageWidthPixel = imageWidth;
mapImageHeightPixel = imageHeight;
}
}
MgSiteConnection siteConnection = new MgSiteConnection();
siteConnection.Open(userInfo);
MgResourceService resSvc = (MgResourceService)siteConnection.CreateService(MgServiceType.ResourceService);
MgResourceIdentifier mapResId = new MgResourceIdentifier(mapRes);
MgFeatureService featSvc = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
MgResourceIdentifier planResId = new MgResourceIdentifier(planRes);
// Filter för planDoc efter planDoc-ID
MgFeatureQueryOptions featureQuery = new MgFeatureQueryOptions();
featureQuery.SetFilter(planFilterColumn + " = " + planID);
MgFeatureReader featureReader = featSvc.SelectFeatures(planResId, planClassName, featureQuery);
MgByteReader byteReaderGeometry = null;
MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter();
MgGeometryCollection geometryCollection = new MgGeometryCollection();
int featureCount = 0;
try
{
while (featureReader.ReadNext())
{
byteReaderGeometry = featureReader.GetGeometry(planGeometryColumn);
MgGeometry districtGeometry = agfReaderWriter.Read(byteReaderGeometry);
geometryCollection.Add(districtGeometry);
featureCount++;
}
}
finally
{
featureReader.Close();
}
MgGeometryFactory geometryFactory = new MgGeometryFactory();
MgMultiGeometry multiGeometry = geometryFactory.CreateMultiGeometry(geometryCollection);
MgMap map = new MgMap(siteConnection);
MgEnvelope envelope = multiGeometry.Envelope();
// Anpassar ev. punkt till komma i tal som hanteras som textsträng för kommande konvertering
if (mapImageHeightPixel.IndexOf(".") != -1)
{
mapImageHeightPixel = mapImageHeightPixel.Replace(".", ",");
}
if (mapImageWidthPixel.IndexOf(".") != -1)
{
mapImageWidthPixel = mapImageWidthPixel.Replace(".", ",");
}
// Önskad bilds höjd och bredd i punkter
double imageHeightPixel = Convert.ToDouble(mapImageHeightPixel);
double imageWidthPixel = Convert.ToDouble(mapImageWidthPixel);
map.DisplayDpi = 120;
double heightEnvelopeN = envelope.Height;
double widthEnvelopeE = envelope.Width;
// Anpassar utbredningen på sökta planer (envelope) till bildens format för att bevara skalriktighet
string mapFarthest = string.Empty;
if (heightEnvelopeN > widthEnvelopeE)
mapFarthest = "height";
else
mapFarthest = "width";
string imageFarthest = string.Empty;
if (imageHeightPixel > imageWidthPixel)
imageFarthest = "height";
else
imageFarthest = "width";
double scale = 1.0;
const double inch = 2.54;
// Ändring av kartans utbredning och addering av utrymme i kartans bild runt planavgränsningen
// Map = avgränsning enligt planytan (utbredning i kartan), Image = önskad bild att skapa med kartan
// Om: kartans höjd är längst & bildens bredd är längst
if (mapFarthest == "height" && imageFarthest == "width")
{
scale = imageWidthPixel / imageHeightPixel * inch;
widthEnvelopeE = imageWidthPixel / imageHeightPixel * heightEnvelopeN * scale;
}
// Om: kartans bredd är längst & bildens höjd är längst
else if (mapFarthest == "width" && imageFarthest == "height")
{
scale = imageHeightPixel / imageWidthPixel * inch;
heightEnvelopeN = imageHeightPixel / imageWidthPixel * widthEnvelopeE * scale;
}
// Om: kartans höjd är längst & bildens höjd är längst
else if (mapFarthest == "height" && imageFarthest == "height")
{
double compareSide = (heightEnvelopeN / (imageHeightPixel / imageWidthPixel));
bool isCompareSideFarthest = false;
if (compareSide > widthEnvelopeE)
{
isCompareSideFarthest = true;
}
else
{
isCompareSideFarthest = false;
}
scale = imageHeightPixel / imageWidthPixel * inch;
if (isCompareSideFarthest)
{
widthEnvelopeE = heightEnvelopeN / (imageHeightPixel / imageWidthPixel) * scale;
}
else
{
heightEnvelopeN = (imageHeightPixel / imageWidthPixel) * widthEnvelopeE * scale;
}
}
// Om(annars): kartans bredd är längst & bildens bredd är längst
else
{
double compareSide = (widthEnvelopeE / (imageWidthPixel / imageHeightPixel));
bool isCompareSideFarthest = false;
if (compareSide > heightEnvelopeN)
{
isCompareSideFarthest = true;
}
else
{
isCompareSideFarthest = false;
}
scale = imageWidthPixel / imageHeightPixel * inch;
if (isCompareSideFarthest)
{
heightEnvelopeN = widthEnvelopeE / (imageWidthPixel / imageHeightPixel) * scale;
}
else
{
widthEnvelopeE = heightEnvelopeN * (imageWidthPixel / imageHeightPixel) * scale;
}
}
double mapSurfaceFactorDbl = Convert.ToDouble(mapSurfaceFactor.Replace('.', ','));
double newHeightN = heightEnvelopeN * mapSurfaceFactorDbl;
double newWidthE = widthEnvelopeE * mapSurfaceFactorDbl;
MgCoordinate lowerLeft = envelope.LowerLeftCoordinate;
MgCoordinate upperRight = envelope.UpperRightCoordinate;
envelope = new MgEnvelope(lowerLeft.X - (newWidthE - widthEnvelopeE) / 2,
lowerLeft.Y - (newHeightN - heightEnvelopeN) / 2,
upperRight.X + (newWidthE - widthEnvelopeE) / 2,
upperRight.Y + (newHeightN - heightEnvelopeN) / 2);
map.Create(resSvc, mapResId, mapResId.Name);
// Skapa lagerdefinition i XML
DefineAreaLayer areaLayer = new DefineAreaLayer();
areaLayer.FeatureName = planClassName;
areaLayer.FeatureSourceName = planRes;
areaLayer.GeometryColumnName = planGeometryColumn;
areaLayer.Filter = planFilterColumn + " = " + planID;
LayerScaleRangeCollection lsrCollection = new LayerScaleRangeCollection();
LayerScaleRange lsr = new LayerScaleRange();
// MinScale applikations-default till 0 (inklusive) om utelämnat, MaxScale applikations-default till kartans maxskala (exklusive) om utelämnat
//lsr.MinScale = "0";
//lsr.MaxScale = "100000000";
AreaTypeStyle ats = new AreaTypeStyle();
AreaRuleCollection arCollection = new AreaRuleCollection();
AreaRule ar = new AreaRule();
//ar.Filter = planFilterColumn + " = " + planID;
ar.LegendLabel = "Plan" + planID;
AreaSymbolization2D symb2D = new AreaSymbolization2D();
Fill fill = new Fill();
fill.BackgroundColor = "FFFF0000";
fill.FillPattern = "Solid";
fill.ForegroundColor = convertRgbsToHexColor(planytorForegroundRgbaColor);
Stroke stroke = new Stroke();
stroke.Color = convertRgbsToHexColor(planytorStrokeRgbaColor);
stroke.LineStyle = "Solid";
stroke.Thickness = "1";
stroke.Unit = "Points";
symb2D.Fill = fill;
symb2D.Stroke = stroke;
ar.Symbolization2D = symb2D;
arCollection.Add(ar);
ats.AreaRules = arCollection;
lsr.AreaTypeStyle = ats;
lsrCollection.Add(lsr);
areaLayer.LayerScaleRanges = lsrCollection;
XmlDocument xmlFile = new XmlDocument();
//XDocument xmlFile = new XDocument();
// om returnerande av xml-dokument
//xmlFile = areaLayer.CreateLayerDefinitionAsXmlDocument();
// om returnerande av xml-sträng
xmlFile.LoadXml(areaLayer.CreateLayerDefinitionAsXmlString());
//xmlFile = areaLayer.CreateLayerDefinitionAsXDocument();
//xmlFile.Save(Server.MapPath(this.Context.Request.ApplicationPath) + "XmlTestLayerDefinition.xml");
using (MemoryStream msNewPlanLayer = new MemoryStream())
{
xmlFile.Save(msNewPlanLayer);
msNewPlanLayer.Position = 0L;
//Note we do this to ensure our XML content is free of any BOM characters
byte[] layerDefinition = msNewPlanLayer.ToArray();
Encoding utf8 = Encoding.UTF8;
String layerDefStr = new String(utf8.GetChars(layerDefinition));
layerDefinition = new byte[layerDefStr.Length - 1];
int byteCount = utf8.GetBytes(layerDefStr, 1, layerDefStr.Length - 1, layerDefinition, 0);
// Save the new layer definition to the session repository
MgByteSource byteSource = new MgByteSource(layerDefinition, layerDefinition.Length);
MgResourceIdentifier layerResourceID = new MgResourceIdentifier("Session:" + mapSiteSessionID + "//" + "planytor" + ".LayerDefinition"); //"SearchedPlan" + planID + ".LayerDefinition");
resSvc.SetResource(layerResourceID, byteSource.GetReader(), null);
MgLayer newPlanLayer = new MgLayer(layerResourceID, resSvc);
newPlanLayer.SetName("Sökta planer");
newPlanLayer.SetVisible(true);
newPlanLayer.SetLegendLabel("Sökta planer");
newPlanLayer.SetDisplayInLegend(true);
MgLayerCollection layerCollection = map.GetLayers();
if (!layerCollection.Contains(newPlanLayer))
{
// Insert the new layer at position 0 so it is at the top
// of the drawing order
layerCollection.Insert(0, newPlanLayer);
}
else
{
layerCollection.Remove(newPlanLayer);
layerCollection.Insert(0, newPlanLayer);
}
map.Save();
}
double mapScale = map.ViewScale;
// XML-dokument till ren text
//StringWriter stringWriter = new StringWriter();
//XmlWriter xmlTextWriter = XmlWriter.Create(stringWriter);
//xmlFile.WriteTo(xmlTextWriter);
//xmlTextWriter.Flush();
string xmlSelection = string.Empty;
//string xmlSelection = stringWriter.GetStringBuilder().ToString();
MgSelection selection = null;
if (!string.IsNullOrEmpty(xmlSelection))
{
selection = new MgSelection(map, xmlSelection);
}
else
{
selection = new MgSelection(map);
}
MgColor color = new MgColor("255,255,255");
// Skapar bild av kartan
MgRenderingService renderingService = (MgRenderingService)siteConnection.CreateService(MgServiceType.RenderingService);
//MgByteReader byteReader = renderingService.RenderMap(map, selection, "PNG");
MgByteReader byteReader = renderingService.RenderMap(map, selection, envelope, Convert.ToInt32(imageWidthPixel), Convert.ToInt32(imageHeightPixel), color, "PNG");
MemoryStream ms = new MemoryStream();
byte[] byteBuffer = new byte[1024];
int numBytes = byteReader.Read(byteBuffer, 1024);
while (numBytes > 0)
{
ms.Write(byteBuffer, 0, numBytes);
numBytes = byteReader.Read(byteBuffer, 1024);
}
byte[] mapImageByte = ms.ToArray();
string imageBase64String = Convert.ToBase64String(mapImageByte);
map.Dispose();
siteConnection.Dispose();
DataTable dtResult = new DataTable();
DataColumn dc = new DataColumn("MAPIMAGEBASE64");
dtResult.Columns.Add(dc);
dc = new DataColumn("WIDTH");
dtResult.Columns.Add(dc);
dc = new DataColumn("HEIGHT");
dtResult.Columns.Add(dc);
DataRow dr = dtResult.NewRow();
dr["MAPIMAGEBASE64"] = imageBase64String;
dr["WIDTH"] = imageWidthPixel;
dr["HEIGHT"] = imageHeightPixel;
dtResult.Rows.Add(dr);
//TODO: MAP: Vad kan returneras, base64 eller länk där bild temporärt genereras på server
//JavaScriptSerializer jsonSerializer = new JavaScriptSerializer();
//return jsonSerializer.Serialize(imageBase64String);
return getDatatableAsJson(dtResult);
}
catch (System.Exception ex)
{
UtilityException.LogException(ex, "Webbmetod : getPlanMapImageAsBase64String", true);
return null;
}
}
public void Add(LayerScaleRange aLayerScaleRange)
{
List.Add(aLayerScaleRange);
}