public void BeginPaint(gView.Framework.Carto.IDisplay display, ICancelTracker cancelTracker)
{
if (_bm != null)
{
_bm.Dispose();
_bm = null;
}
_bm = (Bitmap)Bitmap.FromFile(_filename);
/*
* _bmData = _bm.LockBits(new Rectangle(0, 0, _bm.Width, _bm.Height),
* ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
*/
}
public bool MapRequest(gView.Framework.Carto.IDisplay display)
{
if (_dataset == null || Themes == null)
{
return(false);
}
List <IWebServiceTheme> themes = Themes;
#region Check for visible Layers
bool visFound = false;
foreach (IWebServiceTheme theme in themes)
{
if (!theme.Visible)
{
continue;
}
if (theme.MinimumScale > 1 && theme.MinimumScale > display.mapScale)
{
continue;
}
if (theme.MaximumScale > 1 && theme.MaximumScale < display.mapScale)
{
continue;
}
visFound = true;
break;
}
if (!visFound)
{
if (_image != null)
{
_image.Dispose();
_image = null;
}
return(true);
}
#endregion
string server = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "server");
string service = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "service");
string user = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "user");
string pwd = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "pwd");
IServiceRequestContext context = display.Map as IServiceRequestContext;
if ((user == "#" || user == "$") &&
context != null && context.ServiceRequest != null && context.ServiceRequest.Identity != null)
{
string roles = String.Empty;
if (user == "#" && context.ServiceRequest.Identity.UserRoles != null)
{
foreach (string role in context.ServiceRequest.Identity.UserRoles)
{
if (String.IsNullOrEmpty(role))
{
continue;
}
roles += "|" + role;
}
}
user = context.ServiceRequest.Identity.UserName + roles;
pwd = context.ServiceRequest.Identity.HashedPassword;
}
dotNETConnector connector = new dotNETConnector();
if (!String.IsNullOrEmpty(user) || !String.IsNullOrEmpty(pwd))
{
connector.setAuthentification(user, pwd);
}
if (_dataset.State != DatasetState.opened)
{
if (!_dataset.Open(context))
{
return(false);
}
}
ISpatialReference sRef = (display.SpatialReference != null) ?
display.SpatialReference.Clone() as ISpatialReference :
null;
int iWidth = display.iWidth;
int iHeight = display.iHeight;
if (BeforeMapRequest != null)
{
BeforeMapRequest(this, display, ref sRef, ref iWidth, ref iHeight);
}
try
{
StringBuilder sb = new StringBuilder();
sb.Append("<?xml version='1.0' encoding='utf-8'?>");
sb.Append("<ARCXML version='1.1'>");
sb.Append("<REQUEST>");
sb.Append("<GET_IMAGE>");
sb.Append("<PROPERTIES>");
IEnvelope bounds = display.DisplayTransformation.TransformedBounds(display);
if (display.DisplayTransformation.UseTransformation == true)
{
iWidth = (int)(bounds.Width * display.dpm / display.mapScale);
iHeight = (int)(bounds.Height * display.dpm / display.mapScale);
}
sb.Append("<ENVELOPE minx='" + bounds.minx.ToString() + "' miny='" + bounds.miny.ToString() + "' maxx='" + bounds.maxx.ToString() + "' maxy='" + bounds.maxy.ToString() + "' />");
sb.Append("<IMAGESIZE width='" + iWidth + "' height='" + iHeight + "' />");
sb.Append("<BACKGROUND color='" + Color2AXL(display.BackgroundColor) + "' transcolor='" + Color2AXL(display.TransparentColor) + "' />");
string propertyString = _dataset._properties.PropertyString;
if (propertyString != String.Empty)
{
sb.Append(_dataset._properties.PropertyString);
}
else
{
if (sRef != null)
{
//if (this.SpatialReference != null && !display.SpatialReference.Equals(this.SpatialReference))
{
string wkt = gView.Framework.Geometry.SpatialReference.ToESRIWKT(sRef);
string geotranwkt = gView.Framework.Geometry.SpatialReference.ToESRIGeotransWKT(sRef);
if (wkt != null)
{
//wkt = "PROJCS[\"MGI_M31\",GEOGCS[\"GCS_MGI\",DATUM[\"D_MGI\",SPHEROID[\"Bessel_1841\",6377397.155,0]],PRIMEM[\"Greenwich\",0.0],UNIT[\"degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",450000],PARAMETER[\"False_Northing\",-5000000],PARAMETER[\"Central_Meridian\",13.3333333333333],PARAMETER[\"Scale_Factor\",1],PARAMETER[\"latitude_of_origin\",0],UNIT[\"Meter\",1]]";
//wkt = "PROJCS[\"MGI_M31\",GEOGCS[\"GCS_MGI\",DATUM[\"D_MGI\",SPHEROID[\"Bessel_1841\",6377397.155,299.1528128]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",450000.0],PARAMETER[\"False_Northing\",-5000000.0],PARAMETER[\"Central_Meridian\",13.33333333333333],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",0.0],UNIT[\"Meter\",1.0]]";
//geotranwkt = "GEOGTRAN[\"MGISTMK_To_WGS_1984\",GEOGCS[\"MGISTMK\",DATUM[\"Militar_Geographische_Institute_STMK\",SPHEROID[\"Bessel_1841\",6377397.155,299.1528128]],PRIMEM[\"Greenwich\",0],UNIT[\"degree\",0.0174532925199433]],METHOD[\"Position_Vector\"],PARAMETER[\"X_Axis_Translation\",577.326],PARAMETER[\"Y_Axis_Translation\",90.129],PARAMETER[\"Z_Axis_Translation\",463.919],PARAMETER[\"X_Axis_Rotation\",5.1365988],PARAMETER[\"Y_Axis_Rotation\",1.4742],PARAMETER[\"Z_Axis_Rotation\",5.2970436],PARAMETER[\"Scale_Difference\",2.4232]]";
wkt = wkt.Replace("\"", """);
geotranwkt = geotranwkt.Replace("\"", """);
if (!String.IsNullOrEmpty(geotranwkt))
{
sb.Append("<FEATURECOORDSYS string=\"" + wkt + "\" datumtransformstring=\"" + geotranwkt + "\" />");
sb.Append("<FILTERCOORDSYS string=\"" + wkt + "\" datumtransformstring=\"" + geotranwkt + "\" />");
}
else
{
sb.Append("<FEATURECOORDSYS string=\"" + wkt + "\" />");
sb.Append("<FILTERCOORDSYS string=\"" + wkt + "\" />");
}
//sb.Append("<FEATURECOORDSYS string=\"" + wkt + "\" datumtransformid=\"8415\" />");
//sb.Append("<FILTERCOORDSYS string=\"" + wkt + "\" datumtransformid=\"8415\" />");
}
}
}
}
sb.Append("<LAYERLIST>");
foreach (IWebServiceTheme theme in themes)
{
sb.Append("<LAYERDEF id='" + theme.LayerID + "' visible='" + (theme.Visible && !theme.Locked).ToString() + "'");
XmlNode xmlnode;
if (LayerRenderer.TryGetValue(theme.LayerID, out xmlnode))
{
sb.Append(">\n" + xmlnode.OuterXml + "\n</LAYERDEF>");
}
else if (theme.FeatureRenderer != null)
{
string renderer = ObjectFromAXLFactory.ConvertToAXL(theme.FeatureRenderer);
sb.Append(">\n" + renderer + "\n</LAYERDEF>");
}
else
{
sb.Append("/>");
}
}
sb.Append("</LAYERLIST>");
sb.Append("</PROPERTIES>");
foreach (XmlNode additional in this.AppendedLayers)
{
if (additional != null)
{
sb.Append(additional.OuterXml);
}
}
sb.Append("</GET_IMAGE>");
sb.Append("</REQUEST>");
sb.Append("</ARCXML>");
#if (DEBUG)
gView.Framework.system.Logger.LogDebug("Start ArcXML SendRequest");
#endif
ArcIMSClass.Log(display as IServiceRequestContext, "GetImage Request", server, service, sb);
string resp = connector.SendRequest(sb, server, service);
ArcIMSClass.Log(display as IServiceRequestContext, "GetImage Response", server, service, resp);
#if (DEBUG)
gView.Framework.system.Logger.LogDebug("ArcXML SendRequest Finished");
#endif
XmlDocument doc = new XmlDocument();
doc.LoadXml(resp);
XmlNode outputNode = doc.SelectSingleNode("//IMAGE/OUTPUT");
XmlNode envelopeNode = doc.SelectSingleNode("//IMAGE/ENVELOPE");
if (ModifyResponseOuput != null)
{
ModifyResponseOuput(this, new ModifyOutputEventArgs(outputNode));
}
if (_image != null)
{
_image.Dispose();
_image = null;
}
#if (DEBUG)
//gView.Framework.system.Logger.LogDebug("Start ArcXML DownloadImage");
#endif
System.Drawing.Bitmap bm = null;
if (outputNode != null)
{
#if (DEBUG)
gView.Framework.system.Logger.LogDebug("Start ArcXML DownloadImage");
#endif
bm = WebFunctions.DownloadImage(outputNode /*_dataset._connector.Proxy*/);
#if (DEBUG)
gView.Framework.system.Logger.LogDebug("ArcXML DownloadImage Finished");
#endif
}
else
{
bm = null;
}
#if (DEBUG)
//gView.Framework.system.Logger.LogDebug("ArcXML DownloadImage Finished");
#endif
if (bm != null)
{
_image = new GeorefBitmap(bm);
//_image.MakeTransparent(display.TransparentColor);
if (envelopeNode != null &&
envelopeNode.Attributes["minx"] != null &&
envelopeNode.Attributes["miny"] != null &&
envelopeNode.Attributes["maxx"] != null &&
envelopeNode.Attributes["maxy"] != null)
{
_image.Envelope = new Envelope(
Convert.ToDouble(envelopeNode.Attributes["minx"].Value.Replace(".", ",")),
Convert.ToDouble(envelopeNode.Attributes["miny"].Value.Replace(".", ",")),
Convert.ToDouble(envelopeNode.Attributes["maxx"].Value.Replace(".", ",")),
Convert.ToDouble(envelopeNode.Attributes["maxy"].Value.Replace(".", ",")));
}
_image.SpatialReference = display.SpatialReference;
if (AfterMapRequest != null)
{
AfterMapRequest(this, display, _image);
}
}
return(_image != null);
}
catch (Exception ex)
{
ArcIMSClass.ErrorLog(context, "MapRequest", server, service, ex);
return(false);
}
}
public bool LegendRequest(gView.Framework.Carto.IDisplay display)
{
if (_dataset == null)
{
return(false);
}
List <IWebServiceTheme> themes = Themes;
if (themes == null)
{
return(false);
}
#region Check for visible Layers
bool visFound = false;
foreach (IWebServiceTheme theme in themes)
{
if (!theme.Visible)
{
continue;
}
if (theme.MinimumScale > 1 && theme.MinimumScale > display.mapScale)
{
continue;
}
if (theme.MaximumScale > 1 && theme.MaximumScale < display.mapScale)
{
continue;
}
visFound = true;
break;
}
if (!visFound)
{
if (_legend != null)
{
_legend.Dispose();
_legend = null;
}
return(true);
}
#endregion
string server = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "server");
string service = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "service");
string user = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "user");
string pwd = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "pwd");
IServiceRequestContext context = display.Map as IServiceRequestContext;
if ((user == "#" || user == "$") &&
context != null && context.ServiceRequest != null && context.ServiceRequest.Identity != null)
{
string roles = String.Empty;
if (user == "#" && context.ServiceRequest.Identity.UserRoles != null)
{
foreach (string role in context.ServiceRequest.Identity.UserRoles)
{
if (String.IsNullOrEmpty(role))
{
continue;
}
roles += "|" + role;
}
}
user = context.ServiceRequest.Identity.UserName + roles;
pwd = context.ServiceRequest.Identity.HashedPassword;
}
dotNETConnector connector = new dotNETConnector();
if (!String.IsNullOrEmpty(user) || !String.IsNullOrEmpty(pwd))
{
connector.setAuthentification(user, pwd);
}
if (_dataset.State != DatasetState.opened)
{
if (!_dataset.Open(context))
{
return(false);
}
}
try
{
StringBuilder sb = new StringBuilder();
sb.Append("<?xml version='1.0' encoding='utf-8'?>");
sb.Append("<ARCXML version='1.1'>");
sb.Append("<REQUEST>");
sb.Append("<GET_IMAGE>");
sb.Append("<PROPERTIES>");
sb.Append("<ENVELOPE minx='" + display.Envelope.minx.ToString() + "' miny='" + display.Envelope.miny.ToString() + "' maxx='" + display.Envelope.maxx.ToString() + "' maxy='" + display.Envelope.maxy.ToString() + "' />");
sb.Append("<IMAGESIZE width='" + display.iWidth + "' height='" + display.iHeight + "' />");
sb.Append("<BACKGROUND color='255,255,255' transcolor='255,255,255' />");
sb.Append(_dataset._properties.PropertyString);
sb.Append("<LAYERLIST>");
foreach (IWebServiceTheme theme in themes)
{
sb.Append("<LAYERDEF id='" + theme.LayerID + "' visible='" + (theme.Visible && !theme.Locked).ToString() + "'");
XmlNode xmlnode;
if (LayerRenderer.TryGetValue(theme.LayerID, out xmlnode))
{
sb.Append(">\n" + xmlnode.OuterXml + "\n</LAYERDEF>");
}
else if (theme.FeatureRenderer != null)
{
string renderer = ObjectFromAXLFactory.ConvertToAXL(theme.FeatureRenderer);
sb.Append(">\n" + renderer + "\n</LAYERDEF>");
}
else
{
sb.Append("/>");
}
}
sb.Append("</LAYERLIST>");
sb.Append("<DRAW map=\"false\" />");
sb.Append("<LEGEND font=\"Arial\" autoextend=\"true\" columns=\"1\" width=\"165\" height=\"170\" backgroundcolor=\"255,255,255\" layerfontsize=\"11\" valuefontsize=\"10\">");
sb.Append("<LAYERS />");
sb.Append("</LEGEND>");
sb.Append("</PROPERTIES>");
foreach (XmlNode additional in this.AppendedLayers)
{
sb.Append(additional.OuterXml);
}
sb.Append("</GET_IMAGE>");
sb.Append("</REQUEST>");
sb.Append("</ARCXML>");
ArcIMSClass.Log(display as IServiceRequestContext, "GetLegend Request", server, service, sb);
string resp = connector.SendRequest(sb, server, service);
ArcIMSClass.Log(display as IServiceRequestContext, "GetLegend Response", server, service, resp);
XmlDocument doc = new XmlDocument();
doc.LoadXml(resp);
XmlNode output = doc.SelectSingleNode("//LEGEND");
if (ModifyResponseOuput != null)
{
ModifyResponseOuput(this, new ModifyOutputEventArgs(output));
}
if (_legend != null)
{
_legend.Dispose();
}
_legend = WebFunctions.DownloadImage(output /*_dataset._connector.Proxy*/);
return(true);
}
catch (Exception ex)
{
ArcIMSClass.ErrorLog(context, "LegendRequest", server, service, ex);
return(false);
}
}
public bool renderImage(gView.Framework.Carto.IDisplay display)
{
return(false);
}
public bool renderLayer(gView.Framework.Carto.IDisplay display, ILayer layer)
{
return(false);
}
public void BeginPaint(gView.Framework.Carto.IDisplay display, ICancelTracker cancelTracker)
{
IntPtr bufferData = (IntPtr)0;
BitmapData bitmapData = null;
double mag = 1f; // mag immer als float, läuft stabiler!!!
int x = 0;
int y = 0;
int iWidth = 0;
int iHeight = 0;
try
{
if (_reader == (IntPtr)0)
{
if (!InitReader())
{
return;
}
}
if (!(_polygon is ITopologicalOperation) || _reader == (IntPtr)0)
{
return;
}
TFWFile tfw = this.GeoCoord as TFWFile;
if (tfw == null)
{
return;
}
IEnvelope dispEnvelope = display.DisplayTransformation.TransformedBounds(display); //display.Envelope;
if (display.GeometricTransformer != null)
{
dispEnvelope = (IEnvelope)((IGeometry)display.GeometricTransformer.InvTransform2D(dispEnvelope)).Envelope;
}
IGeometry clipped;
((ITopologicalOperation)_polygon).Clip(dispEnvelope, out clipped);
if (!(clipped is IPolygon))
{
return;
}
IPolygon cPolygon = (IPolygon)clipped;
// geclipptes Polygon transformieren -> Bild
vector2[] vecs = new vector2[cPolygon[0].PointCount];
for (int i = 0; i < cPolygon[0].PointCount; i++)
{
vecs[i] = new vector2(cPolygon[0][i].X, cPolygon[0][i].Y);
}
if (!tfw.ProjectInv(vecs))
{
return;
}
IEnvelope picEnv = vector2.IntegerEnvelope(vecs);
picEnv.minx = Math.Max(0, picEnv.minx);
picEnv.miny = Math.Max(0, picEnv.miny);
picEnv.maxx = Math.Min(picEnv.maxx, _geoCoord.iWidth);
picEnv.maxy = Math.Min(picEnv.maxy, _geoCoord.iHeight);
// Ecken zurücktransformieren -> Welt
vecs = new vector2[3];
vecs[0] = new vector2(picEnv.minx, picEnv.miny);
vecs[1] = new vector2(picEnv.maxx, picEnv.miny);
vecs[2] = new vector2(picEnv.minx, picEnv.maxy);
tfw.Project(vecs);
_p1 = new gView.Framework.Geometry.Point(vecs[0].x, vecs[0].y);
_p2 = new gView.Framework.Geometry.Point(vecs[1].x, vecs[1].y);
_p3 = new gView.Framework.Geometry.Point(vecs[2].x, vecs[2].y);
double pix = display.mapScale / (display.dpi / 0.0254); // [m]
double c1 = Math.Sqrt(_geoCoord.xRes * _geoCoord.xRes + _geoCoord.xRot * _geoCoord.xRot);
double c2 = Math.Sqrt(_geoCoord.yRes * _geoCoord.yRes + _geoCoord.yRot * _geoCoord.yRot);
mag = Math.Round((Math.Min(c1, c2) / pix), 8);
// Immer in auf float runden! Läuft stabiler!!!
//mag = (float)mag; //1.03;
if (mag > 1f)
{
mag = 1f;
}
if (mag < _geoCoord.MinMagnification)
{
mag = (float)_geoCoord.MinMagnification;
}
x = (int)(picEnv.minx * mag);
y = (int)(picEnv.miny * mag);
iWidth = (int)((picEnv.Width - 1) * mag);
iHeight = (int)((picEnv.Height - 1) * mag);
bufferData = MrSidWrapper.Read(_reader, x, y, iWidth, iHeight, (double)mag);
if (bufferData == (IntPtr)0)
{
return;
}
int totalWidth = MrSidWrapper.GetTotalCols(bufferData);
int totalHeight = MrSidWrapper.GetTotalRows(bufferData);
if (_bm != null)
{
_bm.Dispose();
}
_bm = new Bitmap(totalWidth, totalHeight, PixelFormat.Format24bppRgb);
bitmapData = _bm.LockBits(new Rectangle(0, 0, totalWidth, totalHeight), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
Console.Write(bitmapData.Scan0);
MrSidWrapper.ReadBandData(bufferData, bitmapData.Scan0, (uint)3, (uint)bitmapData.Stride);
//_bm.Save(@"C:\temp\pic\" + Guid.NewGuid() + ".jpg", ImageFormat.Jpeg);
}
catch (Exception ex)
{
//string errMsg = ex.Message;
EndPaint(cancelTracker);
if (display is IServiceMap && ((IServiceMap)display).MapServer != null)
{
IMapServer mapServer = ((IServiceMap)display).MapServer;
mapServer.Log(
"RenderRasterLayerThread", loggingMethod.error,
ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace + "\n" +
"filename=" + _filename + "\n" +
"x=" + x.ToString() + "\n" +
"y=" + y.ToString() + "\n" +
"iWidth=" + iWidth.ToString() + "\n" +
"iHeight=" + iHeight.ToString() + "\n" +
"mag=" + mag.ToString() + "\n");
}
else
{
throw ex;
}
}
finally
{
if (bitmapData != null)
{
_bm.UnlockBits(bitmapData);
}
MrSidWrapper.ReleaseBandData(bufferData);
ReleaseReader();
}
}
async public Task <IRasterPaintContext> BeginPaint(gView.Framework.Carto.IDisplay display, ICancelTracker cancelTracker)
{
IntPtr bufferData = (IntPtr)0;
GraphicsEngine.BitmapPixelData bitmapData = null;
double mag = 1f; // mag immer als float, läuft stabiler!!!
int x = 0;
int y = 0;
int iWidth = 0;
int iHeight = 0;
GraphicsEngine.Abstraction.IBitmap bitmap = null;
try
{
if (_reader == (IntPtr)0)
{
if (!InitReader())
{
return(null);
}
}
if (!(_polygon is ITopologicalOperation) || _reader == (IntPtr)0)
{
return(null);
}
TFWFile tfw = this.GeoCoord as TFWFile;
if (tfw == null)
{
return(null);
}
IEnvelope dispEnvelope = display.DisplayTransformation.TransformedBounds(display); //display.Envelope;
if (display.GeometricTransformer != null)
{
dispEnvelope = ((IGeometry)display.GeometricTransformer.InvTransform2D(dispEnvelope)).Envelope;
}
IGeometry clipped;
((ITopologicalOperation)_polygon).Clip(dispEnvelope, out clipped);
if (!(clipped is IPolygon))
{
return(null);
}
IPolygon cPolygon = (IPolygon)clipped;
if (cPolygon.RingCount == 0 || cPolygon[0].Area == 0D)
{
return(null);
}
// geclipptes Polygon transformieren -> Bild
vector2[] vecs = new vector2[cPolygon[0].PointCount];
for (int i = 0; i < cPolygon[0].PointCount; i++)
{
vecs[i] = new vector2(cPolygon[0][i].X, cPolygon[0][i].Y);
}
if (!tfw.ProjectInv(vecs))
{
return(null);
}
IEnvelope picEnv = vector2.IntegerEnvelope(vecs);
picEnv.minx = Math.Max(0, picEnv.minx);
picEnv.miny = Math.Max(0, picEnv.miny);
picEnv.maxx = Math.Min(picEnv.maxx, _geoCoord.iWidth);
picEnv.maxy = Math.Min(picEnv.maxy, _geoCoord.iHeight);
// Ecken zurücktransformieren -> Welt
vecs = new vector2[3];
vecs[0] = new vector2(picEnv.minx, picEnv.miny);
vecs[1] = new vector2(picEnv.maxx, picEnv.miny);
vecs[2] = new vector2(picEnv.minx, picEnv.maxy);
tfw.Project(vecs);
_p1 = new gView.Framework.Geometry.Point(vecs[0].x, vecs[0].y);
_p2 = new gView.Framework.Geometry.Point(vecs[1].x, vecs[1].y);
_p3 = new gView.Framework.Geometry.Point(vecs[2].x, vecs[2].y);
double pix = display.mapScale / (display.dpi / 0.0254); // [m]
double c1 = Math.Sqrt(_geoCoord.xRes * _geoCoord.xRes + _geoCoord.xRot * _geoCoord.xRot);
double c2 = Math.Sqrt(_geoCoord.yRes * _geoCoord.yRes + _geoCoord.yRot * _geoCoord.yRot);
mag = Math.Round((Math.Min(c1, c2) / pix), 8);
// Immer in auf float runden! Läuft stabiler!!!
//mag = (float)mag; //1.03;
if (mag > 1f)
{
mag = 1f;
}
if (mag < _geoCoord.MinMagnification)
{
mag = (float)_geoCoord.MinMagnification;
}
x = (int)(picEnv.minx * mag);
y = (int)(picEnv.miny * mag);
iWidth = (int)((picEnv.Width - 1) * mag);
iHeight = (int)((picEnv.Height - 1) * mag);
bufferData = MrSidWrapper.Read(_reader, x, y, iWidth, iHeight, mag);
if (bufferData == (IntPtr)0)
{
return(null);
}
int totalWidth = MrSidWrapper.GetTotalCols(bufferData);
int totalHeight = MrSidWrapper.GetTotalRows(bufferData);
bitmap = GraphicsEngine.Current.Engine.CreateBitmap(totalWidth, totalHeight, GraphicsEngine.PixelFormat.Rgb24);
bitmapData = bitmap.LockBitmapPixelData(GraphicsEngine.BitmapLockMode.WriteOnly, GraphicsEngine.PixelFormat.Rgb24);
MrSidWrapper.ReadBandData(bufferData, bitmapData.Scan0, 3, (uint)bitmapData.Stride);
return(new RasterPaintContext(bitmap));
}
catch (Exception ex)
{
//string errMsg = ex.Message;
if (display is IServiceMap && ((IServiceMap)display).MapServer != null)
{
IMapServer mapServer = ((IServiceMap)display).MapServer;
await mapServer.LogAsync(
((IServiceMap)display).Name,
"RenderRasterLayerThread", loggingMethod.error,
ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace + "\n" +
"filename=" + _filename + "\n" +
"x=" + x.ToString() + "\n" +
"y=" + y.ToString() + "\n" +
"iWidth=" + iWidth.ToString() + "\n" +
"iHeight=" + iHeight.ToString() + "\n" +
"mag=" + mag.ToString() + "\n");
}
else
{
throw ex;
}
return(null);
}
finally
{
if (bitmapData != null)
{
bitmap.UnlockBitmapPixelData(bitmapData);
}
MrSidWrapper.ReleaseBandData(bufferData);
ReleaseReader();
}
}