/// <summary>
/// This method adds an instance of <see cref="OGCFilterCollection"/>.
/// </summary>
/// <param name="filterCollection"></param>
public void AddFilterCollection(OGCFilterCollection filterCollection)
{
if (!ReferenceEquals(filterCollection, this))
{
_filters.Add(filterCollection);
}
}
public static Map InitializeMap(float angle)
{
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";
Map map = new Map(new Size(600, 600));
map.MinimumZoom = 0.005;
map.BackColor = Color.White;
VectorLayer layer1 = new VectorLayer("States");
VectorLayer layer2 = new VectorLayer("SelectedStatesAndHousholds");
VectorLayer layer3 = new VectorLayer("New Jersey");
VectorLayer layer4 = new VectorLayer("Roads");
VectorLayer layer5 = new VectorLayer("Landmarks");
VectorLayer layer6 = new VectorLayer("Poi");
// Demo data from Geoserver 1.5.3 and Geoserver 1.6.0
WFS prov1 = new WFS(getCapabilitiesURI, "topp", "states", WFS.WFSVersionEnum.WFS1_0_0);
// Bypass 'GetCapabilities' and 'DescribeFeatureType', if you know all necessary metadata.
WfsFeatureTypeInfo featureTypeInfo = new WfsFeatureTypeInfo(serviceURI, "topp", null, "states",
"the_geom");
// 'WFS.WFSVersionEnum.WFS1_1_0' supported by Geoserver 1.6.x
WFS 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.
WFS prov3 = new WFS(serviceURI, "topp", "http://www.openplans.org/topp", "states", "the_geom",
GeometryTypeEnum.MultiSurfacePropertyType, WFS.WFSVersionEnum.WFS1_1_0);
// Get data-filled FeatureTypeInfo after initialization of dataprovider (useful in Web Applications for caching metadata.
WfsFeatureTypeInfo info = prov1.FeatureTypeInfo;
// 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!!!
WFS prov4 = new WFS(prov1.GetCapabilitiesCache, "tiger", "tiger_roads", WFS.WFSVersionEnum.WFS1_0_0);
WFS prov5 = new WFS(prov1.GetCapabilitiesCache, "tiger", "poly_landmarks", WFS.WFSVersionEnum.WFS1_0_0);
WFS 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
OGCFilterCollection filterCollection1 = new OGCFilterCollection();
filterCollection1.AddFilter(filter1);
filterCollection1.AddFilter(filter2);
OGCFilterCollection 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.Style.Fill = new SolidBrush(Color.IndianRed); // States
layer2.Style.Fill = new SolidBrush(Color.Green); // SelectedStatesAndHousholds
layer3.Style.Fill = new SolidBrush(Color.Bisque); // e.g. New York, New Jersey,...
layer5.Style.Fill = new SolidBrush(Color.LightBlue);
// Labels
// Labels are collected when parsing the geometry. So there's just one 'GetFeatureByOid' 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;
Matrix mat = new Matrix();
mat.RotateAt(angle, map.WorldToImage(map.Center));
map.MapTransform = mat;
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);
}
else throw;
}
}
/// <summary>
/// This method adds an instance of <see cref="OGCFilterCollection"/>.
/// </summary>
/// <param name="filterCollection"></param>
public void AddFilterCollection(OGCFilterCollection filterCollection)
{
if (!ReferenceEquals(filterCollection, this))
_Filters.Add(filterCollection);
}
