private static void InitScript(StringBuilder sb, string qgisPath, MapExportModel.Extent extent)
{
sb.AppendLine("from qgis.core import QgsApplication, QgsMapRenderer, QgsMapLayerRegistry, QgsLayerTreeGroup, QgsVectorLayer, QgsRectangle, QgsComposition, QgsComposerMap, QgsComposerLegend, QgsComposerScaleBar, QgsComposerLabel, QgsComposerLegendStyle, QgsMarkerSymbolV2, QgsSymbolV2, QgsRendererRangeV2, QgsGraduatedSymbolRendererV2");
sb.AppendLine("from PyQt4.QtCore import QSize, QRectF");
sb.AppendLine("from PyQt4.QtGui import QImage, QPainter, QColor, QFont");
sb.AppendLine("");
//Function for getting time stamp of layer id
sb.AppendLine("def getTimeStamp(uStr):");
sb.AppendLine("\treturn str(uStr)[len(uStr) - 11:]");
sb.AppendLine("");
sb.AppendLine("qgs = QgsApplication([], False)");
sb.AppendFormat("qgs.setPrefixPath(\"{0}\", True)", qgisPath.Replace(@"\", @"\\"));
sb.AppendLine("");
sb.AppendLine("qgs.initQgis()");
sb.AppendLine("");
sb.AppendLine("instance = QgsMapLayerRegistry.instance()");
sb.AppendFormat("mapRectangle = QgsRectangle({0}, {1}, {2}, {3})", extent.Left.ToString().Replace(",", "."), extent.Bottom.ToString().Replace(",", "."), extent.Right.ToString().Replace(",", "."), extent.Top.ToString().Replace(",", "."));
sb.AppendLine("");
//sb.AppendLine("widthInKm = mapRectangle.width() / 1000");
//sb.AppendLine("heightInKm = mapRectangle.height() / 1000");
//Height and width in meter (SWEREF99) * 1000 equals mm / scale
sb.AppendLine("legendLayers = QgsLayerTreeGroup()");
}
public static string GetLayerGeojson(
IUserContext currentUser,
int layerId,
CoordinateSystemId coordinateSystemId,
IDictionary <string, object> parameters,
out string layerName,
MapExportModel.Extent mapExtent)
{
string geoJson = null;
layerName = null;
if (layerId == null)
{
return(null);
}
if (layerId >= CustomLayersStartLayerId)
{
var viewManager = new WfsLayersViewManager(currentUser, SessionHandler.MySettings);
var layer = viewManager.GetWfsLayers().FirstOrDefault(l => l.Id == layerId);
layerName = layer.Name;
if (layer.IsFile)
{
geoJson = JsonConvert.SerializeObject(MySettingsManager.GetMapDataFeatureCollection(currentUser, layer.GeometryName, coordinateSystemId));
}
else
{
var url = WFSFilterUtils.GetResultingUrl(layer.ServerUrl, layer.TypeName, "1.1.0", layer.Filter, "application%2Fjson", null, string.Format("EPSG%3A{0}", coordinateSystemId.Srid()));
var request = WebRequest.Create(url);
request.Credentials = CredentialCache.DefaultCredentials;
// Get the response.
using (var response = request.GetResponse())
{
using (var dataStream = response.GetResponseStream())
{
using (var reader = new StreamReader(dataStream))
{
geoJson = reader.ReadToEnd();
reader.Close();
}
}
response.Close();
}
}
}
else
{
switch (layerId)
{
case SpeciesRichnessGridLayerId:
var taxonGridCalculator = new TaxonGridCalculator(currentUser, SessionHandler.MySettings);
geoJson = taxonGridCalculator.GetTaxonGridAsGeoJson();
var attribute = (string)(parameters.ContainsKey("attribute") ? parameters["attribute"] : null);
layerName = Resource.ResultViewSpeciesRichnessGridMapLayerName;
if (attribute != null)
{
switch (attribute.ToLower().Trim())
{
case "speciescount":
layerName = Resource.ResultDownloadSpeciesRichnessGridMap;
break;
case "observationcount":
layerName = Resource.ResultDownloadObservationsGridMap;
break;
}
}
break;
case SpeciesObservationGridMapLayerId:
case EooConvexHullLayerId:
case EooConcaveHullLayerId:
var speciesObservationGridCalculator = new SpeciesObservationGridCalculator(currentUser, SessionHandler.MySettings);
if (layerId == SpeciesObservationGridMapLayerId)
{
geoJson = speciesObservationGridCalculator.GetSpeciesObservationGridAsGeoJson();
layerName = Resource.ResultViewSpeciesObservationGridMap;
}
else
{
var alphaValue = (int?)(parameters.ContainsKey("alphaValue") ? parameters["alphaValue"] : null);
var useCenterPoint = (bool?)(parameters.ContainsKey("useCenterPoint") ? parameters["useCenterPoint"] : null);
geoJson = speciesObservationGridCalculator.GetSpeciesObservationAOOEOOAsGeoJson(
layerId == EooConcaveHullLayerId ? alphaValue : 0,
useCenterPoint ?? true);
layerName = Resource.MapEOOLayer;
}
break;
case ObservationsLayerId: //Observations
case SpeciesObservationClusterPointMapLayerId:
SpeciesObservationResultCalculator resultCalculator = null;
try
{
var displayCoordinateSystemId = SessionHandler.MySettings.Presentation.Map.PresentationCoordinateSystemId;
resultCalculator = new SpeciesObservationResultCalculator(currentUser, SessionHandler.MySettings);
geoJson = resultCalculator.GetSpeciesObservationsAsGeoJson(displayCoordinateSystemId);
layerName = Resource.MapLayerObservations;
}
catch (Exception)
{
}
break;
}
}
return(geoJson);
}