public static List <TravelTimePolygonPath> CreatePolygonPaths(List <TravelTimeCircle> circles, double speed)
{
List <TravelTimePolygonPath> paths = new List <TravelTimePolygonPath>();
var clipper = new Clipper.Clipper();
foreach (var circle in circles)
{
clipper.AddPolygon(CreateCirclePolygon(circle.Center, circle.TimeLeft, 12, speed), PolyType.ptSubject);
}
List <List <IntPoint> > solution = new List <List <IntPoint> >();
clipper.Execute(ClipType.ctUnion, solution, PolyFillType.pftPositive, PolyFillType.pftPositive);
foreach (var solutionItem in solution)
{
var path = new TravelTimePolygonPath();
foreach (var intPoint in solutionItem)
{
path.Coords.Add(new LatLng(intPoint.X / 10000000.0, intPoint.Y / 10000000.0));
}
paths.Add(path);
}
return(paths);
}
public static long ExecuteRefactoredClipper(int testIterationCount, List <ClipExecutionData> executionData)
{
var stopwatch = new Stopwatch();
stopwatch.Start();
for (var i = 0; i < testIterationCount; i++)
{
foreach (var clipPath in executionData)
{
var subject = new Clipper.PolygonPath(
clipPath
.Subject
.Select(poly => new Clipper.Polygon(poly.Select(pt =>
new Clipper.IntPoint(
pt.X * Scale,
pt.Y * Scale)))));
var clip = new Clipper.PolygonPath(
clipPath
.Clip
.Select(poly => new Clipper.Polygon(poly.Select(pt =>
new Clipper.IntPoint(
pt.X * Scale,
pt.Y * Scale)))));
var solution = new Clipper.PolygonTree();
var clipper = new Clipper.Clipper();
clipper.AddPath(subject, Clipper.PolygonKind.Subject);
clipper.AddPath(clip, Clipper.PolygonKind.Clip);
// Convert performance test library operation enum to Clipper operation enum.
var operation = (Clipper.ClipOperation)Enum.Parse(typeof(Clipper.ClipOperation), clipPath.Operation.ToString(), true);
Assert.IsTrue(clipper.Execute(operation, solution));
}
}
stopwatch.Stop();
return(stopwatch.Elapsed.Ticks);
}
/// <summary>
/// Creates a double list of the list of <see cref="Polygon" /> broken up into <see cref="IntPoint" />'s.
/// </summary>
/// <param name="polygons">List of <see cref="Polygon" />s</param>
/// <returns>Double list of <see cref="IntPoint" />, each list mathing a polygon that was broken up.</returns>
public static List <List <IntPoint> > ClipPolygons(List <Polygon> polygons)
{
var subj = new List <List <IntPoint> >(polygons.Count);
var clip = new List <List <IntPoint> >(polygons.Count);
foreach (var polygon in polygons)
{
subj.Add(polygon.ToClipperPath());
clip.Add(polygon.ToClipperPath());
}
var solution = new List <List <IntPoint> >();
var c = new Clipper.Clipper();
c.AddPaths(subj, PolyType.PtSubject, true);
c.AddPaths(clip, PolyType.PtClip, true);
c.Execute(ClipType.CtUnion, solution, PolyFillType.PftPositive, PolyFillType.PftEvenOdd);
return(solution);
}
