/// <summary>
/// returns a Random VectorStyle with no symbols.
///
/// </summary>
/// <returns></returns>
public static GeoJsonGeometryStyle RandomGeometryStyle()
{
GeoJsonGeometryStyle vs = new GeoJsonGeometryStyle();
vs.EnableOutline = random.Next(0, 2) == 1;
vs.Fill = RandomBrush();
vs.Line = RandomPen();
vs.Outline = RandomPen();
vs.Symbol = RandomSymbol();
vs.Outline.Width += vs.Line.Width;
vs.HighlightFill = RandomBrush();
vs.HighlightLine = RandomPen();
vs.HighlightOutline = RandomPen();
vs.HighlightSymbol = RandomSymbol();
vs.SelectFill = RandomBrush();
vs.SelectLine = RandomPen();
vs.SelectOutline = RandomPen();
vs.SelectSymbol = RandomSymbol();
return(vs);
}
protected override IEnumerable <TRenderObject> DoRenderFeature(IFeatureDataRecord feature,
GeoJsonGeometryStyle style,
RenderState state,
ILayer layer)
{
if (feature == null)
{
throw new ArgumentNullException("feature");
}
if (style == null)
{
throw new ArgumentNullException("style");
}
if (feature.Geometry == null)
{
throw new InvalidOperationException("Feature must have a geometry to be rendered.");
}
StringBuilder sb = new StringBuilder();
GeoJsonFeatureWriter.WriteFeature(sb, style, feature);
yield return((TRenderObject)(object)(new GeoJsonRenderObject(sb.ToString())));
/* oh dear - i feel very dirty now */
}
private static void setupShapefile(HttpContext context, Map m)
{
GeometryServices geometryServices = new GeometryServices();
string[] layernames = new[]
{
"Countries",
"Rivers" /*,
* "Cities"*/
};
foreach (string s in layernames)
{
ShapeFileProvider shapeFile =
new ShapeFileProvider(context.Server.MapPath(string.Format("~/App_Data/Shapefiles/{0}.shp", s)),
geometryServices.DefaultGeometryFactory,
geometryServices.CoordinateSystemFactory, false);
shapeFile.IsSpatiallyIndexed = false;
AppStateMonitoringFeatureProvider provider = new AppStateMonitoringFeatureProvider(shapeFile);
GeoJsonGeometryStyle style = RandomStyle.RandomGeometryStyle();
/* include GeoJson styles */
style.IncludeAttributes = false;
style.IncludeBBox = true;
style.PreProcessGeometries = false;
style.CoordinateNumberFormatString = "{0:F}";
GeometryLayer geometryLayer = new GeometryLayer(s, style, provider);
geometryLayer.Features.IsSpatiallyIndexed = false;
m.AddLayer(geometryLayer);
provider.Open();
}
}
private static void setupMsSqlSpatial(Map m)
{
string[] layernames = new[]
{ "Rivers",
"Countries"
/*,
* "Cities"*/
};
string sridstr = SridMap.DefaultInstance.Process(4326, "");
foreach (string lyrname in layernames)
{
string tbl = lyrname;
AppStateMonitoringFeatureProvider provider = new AppStateMonitoringFeatureProvider(
new MsSqlSpatialProvider(
new GeometryServices()[sridstr],
ConfigurationManager.ConnectionStrings["db"].ConnectionString,
"st",
"dbo",
tbl,
"oid",
"Geometry")
{
DefaultProviderProperties
= new ProviderPropertiesExpression(
new ProviderPropertyExpression[]
{
new WithNoLockExpression(true)
})
});
GeoJsonGeometryStyle style = new GeoJsonGeometryStyle();
switch (tbl)
{
case "Rivers":
{
StyleBrush brush = new SolidStyleBrush(StyleColor.Blue);
StylePen pen = new StylePen(brush, 1);
style.Enabled = true;
style.EnableOutline = true;
style.Line = pen;
style.Fill = brush;
break;
}
case "Countries":
{
StyleBrush brush = new SolidStyleBrush(new StyleColor(0, 0, 0, 255));
StylePen pen = new StylePen(brush, 2);
style.Enabled = true;
style.EnableOutline = true;
style.Line = pen;
style.Fill = new SolidStyleBrush(StyleColor.Green);
break;
}
default:
{
style = RandomStyle.RandomGeometryStyle();
style.MaxVisible = 100000;
break;
}
}
/* include GeoJson styles */
style.IncludeAttributes = false;
style.IncludeBBox = true;
style.PreProcessGeometries = false;
style.CoordinateNumberFormatString = "{0:F}";
GeometryLayer layer = new GeometryLayer(tbl, style, provider);
layer.Features.IsSpatiallyIndexed = false;
layer.AddProperty(AppStateMonitoringFeatureLayerProperties.AppStateMonitor, provider.Monitor);
m.AddLayer(layer);
}
}