public static IList<RawProvince> Provinces(string text)
{
IList<RawProvince> provinces = new List<RawProvince>();
ProvinceBuilder provBuilder = new ProvinceBuilder();
PolygonBuilder polyBuilder = new PolygonBuilder();
foreach (string line in Lines(text))
{
Vector2[] vectors;
switch (line[0])
{
case '§': // New province
if (provBuilder.Tag != "")
{
provBuilder.Polys.Add(polyBuilder.Build());
provinces.Add(provBuilder.Build());
}
string[] tokens = line.Split(' ');
provBuilder.Tag = tokens[0].Substring(1);
if (!TryParseHexColor(tokens[1], out provBuilder.Color))
{
Console.Error.WriteLine("Failed to parse color: " + tokens[1]);
}
break;
case '\\': // New hole to existing polygon
vectors = ParseVectors(line.Substring(1));
polyBuilder.Holes.Add(new Poly(vectors));
break;
default: // New polygon
vectors = ParseVectors(line);
if (polyBuilder.Outline != null)
{
provBuilder.Polys.Add(polyBuilder.Build());
}
polyBuilder.Outline = new Poly(vectors);
break;
}
}
provBuilder.Polys.Add(polyBuilder.Build());
provinces.Add(provBuilder.Build());
return provinces;
}
private void ComputeOverlay(OverlayType opCode)
{
// copy points from input Geometries.
// This ensures that any Point geometries
// in the input are considered for inclusion in the result set
CopyPoints(0);
CopyPoints(1);
// node the input Geometries
arg[0].ComputeSelfNodes(li, false);
arg[1].ComputeSelfNodes(li, false);
// compute intersections between edges of the two input geometries
arg[0].ComputeEdgeIntersections(arg[1], li, true);
EdgeCollection baseSplitEdges = new EdgeCollection();
arg[0].ComputeSplitEdges(baseSplitEdges);
arg[1].ComputeSplitEdges(baseSplitEdges);
// EdgeCollection splitEdges = baseSplitEdges;
// Add the noded edges to this result graph
InsertUniqueEdges(baseSplitEdges);
ComputeLabelsFromDepths();
ReplaceCollapsedEdges();
graph.AddEdges(edgeList.Edges);
ComputeLabelling();
LabelIncompleteNodes();
// The ordering of building the result Geometries is important.
// Areas must be built before lines, which must be built before points.
// This is so that lines which are covered by areas are not included
// explicitly, and similarly for points.
FindResultAreaEdges(opCode);
CancelDuplicateResultEdges();
PolygonBuilder polyBuilder = new PolygonBuilder(geomFact);
polyBuilder.Add(graph);
resultPolyList = polyBuilder.Build();
LineBuilder lineBuilder = new LineBuilder(this, geomFact, ptLocator);
resultLineList = lineBuilder.Build(opCode);
PointBuilder pointBuilder = new PointBuilder(this, geomFact);
resultPointList = pointBuilder.Build(opCode);
// gather the results from all calculations into a single Geometry for the result set
resultGeom = ComputeGeometry(resultPointList, resultLineList, resultPolyList);
}
public virtual Geometry Buffer(Geometry g, double distance)
{
PrecisionModel precisionModel = workingPrecisionModel;
if (precisionModel == null)
precisionModel = g.PrecisionModel;
// factory must be the same as the one used by the input
geomFact = g.Factory;
OffsetCurveBuilder curveBuilder =
new OffsetCurveBuilder(precisionModel, quadrantSegments);
curveBuilder.EndCapStyle = endCapStyle;
OffsetCurveSetBuilder curveSetBuilder =
new OffsetCurveSetBuilder(g, distance, curveBuilder);
ArrayList bufferSegStrList = curveSetBuilder.Curves;
// short-circuit test
if (bufferSegStrList.Count <= 0)
{
Geometry emptyGeom =
geomFact.CreateGeometryCollection(new Geometry[0]);
return emptyGeom;
}
ComputeNodedEdges(bufferSegStrList, precisionModel);
graph = new PlanarGraph(new OverlayNodeFactory());
graph.AddEdges(edgeList.Edges);
IList subgraphList = CreateSubgraphs(graph);
PolygonBuilder polyBuilder = new PolygonBuilder(geomFact);
BuildSubgraphs(subgraphList, polyBuilder);
GeometryList resultPolyList = polyBuilder.Build();
Geometry resultGeom = geomFact.BuildGeometry(resultPolyList);
return resultGeom;
}