/// <summary>
/// snapping specific for a tool. Called before layer specific snapping is applied.
/// </summary>
/// <returns></returns>
private void Snap(IGeometry snapSource, ICoordinate worldPos)
{
SnapResult = null;
var sourceFeature = SelectTool.SelectedFeatureInteractors[0].SourceFeature;
if (!Equals(sourceFeature.Geometry, snapSource))
{
return;
}
SnapRole snapRole;
if (Mode == EditMode.Add)
{
snapRole = SnapRole.FreeAtObject;
if ((Control.ModifierKeys & Keys.Control) == Keys.Control)
snapRole = SnapRole.Free;
}
else
{
snapRole = SnapRole.AllTrackers;
}
ISnapRule snapRule = new SnapRule {Obligatory = true, SnapRole = snapRole, PixelGravity = 4};
SnapResult = MapControl.SnapTool.ExecuteSnapRule(snapRule, sourceFeature, sourceFeature.Geometry,
new List<IFeature> {sourceFeature}, worldPos, -1);
}
public void SnapToLineStringUsingFreeAtObject()
{
var mockRepository = new MockRepository();
var feature = mockRepository.CreateMock<IFeature>();
using (mockRepository.Record())
{
Expect.Call(feature.Geometry).Return(lineString).Repeat.Any();
}
using (mockRepository.Playback())
{
var features = new [] {feature};
var layers = new[] { new VectorLayer() };
IPoint snapSource = new Point(5, 5);
SnapRule snapRule = new SnapRule
{
SnapRole = SnapRole.FreeAtObject,
Obligatory = true,
PixelGravity = 40
};
SnapResult snapResults = snapRule.Execute(null, features, layers, snapSource, null,
snapSource.Coordinates[0],
CreateEnvelope(snapSource, 10),
0);
Assert.IsNotNull(snapResults);
Assert.IsNotNull(snapResults.Location);
Assert.AreEqual(0, snapResults.Location.Y);
Assert.AreEqual(5, snapResults.Location.X);
}
}
private static void SetFeatureEditorForNetworkCoverage(INetworkCoverageGroupLayer networkCoverageGroupLayer)
{
ISnapRule networkCoverageSnapRule = new SnapRule
{
Criteria = (layer, feature) => feature is IBranch && ((IBranch)feature).Network == networkCoverageGroupLayer.NetworkCoverage.Network,
SnapRole = SnapRole.FreeAtObject,
Obligatory = true,
PixelGravity = 40,
NewFeatureLayer = networkCoverageGroupLayer.LocationLayer
};
networkCoverageGroupLayer.FeatureEditor = new NetworkLocationFeatureEditor(networkCoverageGroupLayer);
var locationFeatureEditor = new NetworkLocationFeatureEditor(networkCoverageGroupLayer) { SnapRules = { networkCoverageSnapRule } };
networkCoverageGroupLayer.LocationLayer.FeatureEditor = locationFeatureEditor;
}