public void RegionSanitize(Region region)
{
// UpdateLatLonFromPoints(region); // reduces precision
List <PolygonPoint> newLatLons = new List <PolygonPoint>(region.latlon);
// removes points which are too near from others
for (int k = 0; k < newLatLons.Count; k++)
{
PolygonPoint p0 = newLatLons[k];
for (int j = k + 1; j < newLatLons.Count; j++)
{
PolygonPoint p1 = newLatLons[j];
double distance = (p1 - p0).MagnitudeSquared();
if (distance < 0.000001)
{
newLatLons.RemoveAt(j);
j--;
}
}
}
// remove crossing segments
region.latlon = PolygonSanitizer.RemoveCrossingSegments(newLatLons).ToArray();
// updates points
UpdatePointsFromLatLon(region);
}
/// <summary>
/// Exports the geographic data in packed string format with reduced quality.
/// </summary>
public string GetCountryGeoDataLowQuality()
{
// step 1: duplicate data
IAdminEntity[] entities;
if (editingMode == EDITING_MODE.COUNTRIES)
{
entities = map.countries;
}
else
{
entities = map.provinces;
}
List <IAdminEntity> entities1 = new List <IAdminEntity>(entities);
// step 1: prepare data structures
for (int k = 0; k < entities1.Count; k++)
{
entities1[k].regions = new List <Region>(entities1[k].regions);
}
// step 2: catalog points
int totalPoints = 0;
List <PolygonPoint> allPoints = new List <PolygonPoint>(150000);
for (int k = 0; k < entities1.Count; k++)
{
for (int r = 0; r < entities1[k].regions.Count; r++)
{
Region region1 = entities1[k].regions[r];
totalPoints += region1.latlon.Length;
allPoints.AddRange(region1.latlon);
}
}
allPoints = DouglasPeucker.SimplifyCurve(allPoints, 0.1);
Dictionary <PolygonPoint, bool> allPointsLookup = new Dictionary <PolygonPoint, bool>(allPoints.Count);
for (int k = 0; k < allPoints.Count; k++)
{
if (!allPointsLookup.ContainsKey(allPoints[k]))
{
allPointsLookup.Add(allPoints[k], true);
}
}
// step 3: reduce region points according to exclusion catalog
int savings = 0;
List <PolygonPoint> goodLatLons = new List <PolygonPoint>(15000);
for (int k = 0; k < entities1.Count; k++)
{
for (int r = 0; r < entities1[k].regions.Count; r++)
{
goodLatLons.Clear();
Region region = entities1[k].regions[r];
for (int p = 0; p < region.latlon.Length; p++)
{
PolygonPoint latlon = region.latlon[p];
if (allPointsLookup.ContainsKey(latlon))
{
goodLatLons.Add(latlon);
}
}
goodLatLons = PolygonSanitizer.RemoveCrossingSegments(goodLatLons);
if (goodLatLons.Count < 5)
{
entities1[k].regions.Remove(region);
r--;
}
else
{
totalPoints += region.latlon.Length;
savings += (region.latlon.Length - goodLatLons.Count);
region.latlon = goodLatLons.ToArray();
}
}
}
Debug.Log(savings + " points removed of " + totalPoints + " (" + (((float)savings / totalPoints) * 100.0f).ToString("F1") + "%)");
StringBuilder sb = new StringBuilder();
for (int k = 0; k < entities1.Count; k++)
{
IAdminEntity entity = entities1[k];
if (entity.regions.Count == 0)
{
continue;
}
if (k > 0)
{
sb.Append("|");
}
sb.Append(entity.name + "$");
if (entity is Country)
{
sb.Append(((Country)entity).continent + "$");
}
else
{
sb.Append(map.countries[((Province)entity).countryIndex].name + "$");
}
for (int r = 0; r < entity.regions.Count; r++)
{
if (r > 0)
{
sb.Append("*");
}
Region region = entity.regions [r];
for (int p = 0; p < region.latlon.Length; p++)
{
if (p > 0)
{
sb.Append(";");
}
Point2D point = region.latlon [p] * WorldMapGlobe.MAP_PRECISION;
sb.Append(Mathf.RoundToInt(point.Xf).ToString() + ",");
sb.Append(Mathf.RoundToInt(point.Yf).ToString());
}
}
}
return(sb.ToString());
}