private static OGCFilterCollection CreateStatesAndHouseholdsFilter()
{
var californiaAndVermont = new OGCFilterCollection();
californiaAndVermont.AddFilter(new PropertyIsEqualToFilter_FE1_1_0("STATE_NAME", "California"));
californiaAndVermont.AddFilter(new PropertyIsEqualToFilter_FE1_1_0("STATE_NAME", "Vermont"));
californiaAndVermont.Junctor = OGCFilterCollection.JunctorEnum.Or;
IFilter householdSizeFilter = new PropertyIsBetweenFilter_FE1_1_0("HOUSHOLD", "600000", "4000000");
var stateAndStatesAndHouseholdsFilter = new OGCFilterCollection();
stateAndStatesAndHouseholdsFilter.AddFilter(householdSizeFilter);
stateAndStatesAndHouseholdsFilter.AddFilter(californiaAndVermont);
stateAndStatesAndHouseholdsFilter.Junctor = OGCFilterCollection.JunctorEnum.Or;
return(stateAndStatesAndHouseholdsFilter);
}
public static Map InitializeMap()
{
try
{
// WARNING
// This sample needs the GeoServer WFS running on your local machine.
// It uses the GeoServer default sample data. Installing and starting it is all you need to do
// http://docs.codehaus.org/display/GEOS/Download
// Sample by Peter Robineau
const string getCapabilitiesUri = "http://localhost:8080/geoserver/wfs";
const string serviceUri = "http://localhost:8080/geoserver/wfs";
var map = new Map();
map.BackColor = Color.White;
var layer1 = new Layer("States");
var layer2 = new Layer("SelectedStatesAndHousholds");
var layer3 = new Layer("New Jersey");
var layer4 = new Layer("Roads");
var layer5 = new Layer("Landmarks");
var layer6 = new Layer("Poi");
// Demo data from Geoserver 1.5.3 and Geoserver 1.6.0
var prov1 = new WFS(getCapabilitiesUri, "topp", "states", WFS.WFSVersionEnum.WFS1_0_0);
// Bypass 'GetCapabilities' and 'DescribeFeatureType', if you know all necessary metadata.
var featureTypeInfo = new WfsFeatureTypeInfo(serviceUri, "topp", null, "states",
"the_geom");
// 'WFS.WFSVersionEnum.WFS1_1_0' supported by Geoserver 1.6.x
var prov2 = new WFS(featureTypeInfo, WFS.WFSVersionEnum.WFS1_1_0);
// Bypass 'GetCapabilities' and 'DescribeFeatureType' again...
// It's possible to specify the geometry type, if 'DescribeFeatureType' does not...(.e.g 'GeometryAssociationType')
// This helps to accelerate the initialization process in case of unprecise geometry information.
var prov3 = new WFS(serviceUri, "topp", "http://www.openplans.org/topp", "states", "the_geom",
GeometryTypeEnum.MultiSurfacePropertyType, WFS.WFSVersionEnum.WFS1_1_0);
// Use cached 'GetCapabilities' response of prov1 (featuretype hosted by same service).
// Compiled XPath expressions are re-used automatically!
// If you use a cached 'GetCapabilities' response make sure the data provider uses the same version of WFS as the one providing the cache!!!
var prov4 = new WFS(prov1.GetCapabilitiesCache, "tiger", "tiger_roads", WFS.WFSVersionEnum.WFS1_0_0);
var prov5 = new WFS(prov1.GetCapabilitiesCache, "tiger", "poly_landmarks", WFS.WFSVersionEnum.WFS1_0_0);
var prov6 = new WFS(prov1.GetCapabilitiesCache, "tiger", "poi", WFS.WFSVersionEnum.WFS1_0_0);
// Clear cache of prov1 - data providers do not have any cache, if they use the one of another data provider
prov1.GetCapabilitiesCache = null;
//Filters
IFilter filter1 = new PropertyIsEqualToFilter_FE1_1_0("STATE_NAME", "California");
IFilter filter2 = new PropertyIsEqualToFilter_FE1_1_0("STATE_NAME", "Vermont");
IFilter filter3 = new PropertyIsBetweenFilter_FE1_1_0("HOUSHOLD", "600000", "4000000");
IFilter filter4 = new PropertyIsLikeFilter_FE1_1_0("STATE_NAME", "New*");
// SelectedStatesAndHousholds: Green
var filterCollection1 = new OGCFilterCollection();
filterCollection1.AddFilter(filter1);
filterCollection1.AddFilter(filter2);
var filterCollection2 = new OGCFilterCollection();
filterCollection2.AddFilter(filter3);
filterCollection1.AddFilterCollection(filterCollection2);
filterCollection1.Junctor = OGCFilterCollection.JunctorEnum.Or;
prov2.OGCFilter = filterCollection1;
// Like-Filter('New*'): Bisque
prov3.OGCFilter = filter4;
// Layer Style
layer1.Styles.Add(new VectorStyle {
Fill = new Brush {
Color = Color.Red
}
});
layer2.Styles.Add(new VectorStyle {
Fill = new Brush {
Color = Color.Green
}
}); // SelectedStatesAndHousholds
layer3.Styles.Add(new VectorStyle {
Fill = new Brush {
Color = Color.Yellow
}
}); // e.g. New York, New Jersey,...
layer5.Styles.Add(new VectorStyle {
Fill = new Brush {
Color = Color.Blue
}
});
// Labels
// Labels are collected when parsing the geometry. So there's just one 'GetFeature' call necessary.
// Otherwise (when calling twice for retrieving labels) there may be an inconsistent read...
// If a label property is set, the quick geometry option is automatically set to 'false'.
prov3.Label = "STATE_NAME";
//!!!LabelLayer layLabel = new LabelLayer("labels");
//layLabel.DataSource = prov3;
//layLabel.Enabled = true;
//layLabel.LabelColumn = prov3.Label;
//layLabel.Style = new LabelStyle();
//layLabel.Style.CollisionDetection = false;
//layLabel.Style.CollisionBuffer = new SizeF(5, 5);
//layLabel.Style.ForeColor = Color.Black;
//layLabel.Style.Font = new Font(FontFamily.GenericSerif, 10);
//layLabel.MaxVisible = 90;
//layLabel.Style.HorizontalAlignment = LabelStyle.HorizontalAlignmentEnum.Center;
// Options
// Defaults: MultiGeometries: true, QuickGeometries: false, GetFeatureGETRequest: false
// Render with validation...
prov1.QuickGeometries = false;
// Important when connecting to an UMN MapServer
prov1.GetFeatureGETRequest = true;
// Ignore multi-geometries...
prov1.MultiGeometries = false;
// Quick geometries
// We need this option for prov2 since we have not passed a featuretype namespace
prov2.QuickGeometries = true;
prov4.QuickGeometries = true;
prov5.QuickGeometries = true;
prov6.QuickGeometries = true;
layer1.DataSource = prov1;
layer2.DataSource = prov2;
layer3.DataSource = prov3;
layer4.DataSource = prov4;
layer5.DataSource = prov5;
layer6.DataSource = prov6;
map.Layers.Add(layer1);
map.Layers.Add(layer2);
map.Layers.Add(layer3);
map.Layers.Add(layer4);
map.Layers.Add(layer5);
map.Layers.Add(layer6);
//!!!map.Layers.Add(layLabel);
//!!!map.Center = new Point(-74.0, 40.7);
//!!!map.Zoom = 10;
// Alternatively zoom closer
// demoMap.Zoom = 0.2;
return(map);
}
catch (WebException ex)
{
if ((ex.Message.Contains("(502) Bad Gateway")) ||
(ex.Message.Contains("Unable to connect to the remote server")))
{
throw new Exception(
"The Wfs sample threw an exception. You probably need to install the GeoServer WFS to your local machine. You can get it from here: http://docs.codehaus.org/display/GEOS/Download. The exception message was: " +
ex.Message);
}
throw;
}
}
