private static IList <ISegmentString> ExtractSegmentStrings(IEnumerable <IGeometry> geoms)
{
var segStrings = new List <ISegmentString>();
var filter = new GeometryComponentFilter(
g => { if (g is ILineString)
{
segStrings.Add(new NodedSegmentString(g.Coordinates, g));
}
});
foreach (var geom in geoms)
{
geom.Apply(filter);
}
return(segStrings);
}
private static IList <ISegmentString> ExtractTaggedSegmentStrings(IGeometry geom, IPrecisionModel pm)
{
var segStrings = new List <ISegmentString>();
var filter = new GeometryComponentFilter(
delegate(IGeometry fgeom)
{
// Extract linework for lineal components only
if (!(fgeom is ILineString))
{
return;
}
// skip empty lines
if (geom.NumPoints <= 0)
{
return;
}
var roundPts = Round(((ILineString)fgeom).CoordinateSequence, pm);
segStrings.Add(new NodedSegmentString(roundPts, fgeom));
});
geom.Apply(filter);
return(segStrings);
}
