private void GeneralizeByAreaAdditivePlus_Click(object sender, RoutedEventArgs e)
{
var fileName = this.SelectShapefile();
if (string.IsNullOrEmpty(fileName))
{
return;
}
var shapes = GetShapes(fileName);
var result = Utilities.SimplifyAlgorithms.AdditiveSimplifyByAreaPlus(shapes, Presenter.AreaThreshold);
var unitDistance = WebMercatorUtility.CalculateGroundResolution(Presenter.ZoomLevel, 35);
string output;
if (unitDistance * unitDistance - Presenter.AreaThreshold < .001)
{
output = TodayDirectory + System.IO.Path.GetFileNameWithoutExtension(fileName) + "AreaAdditivePlus" + Presenter.ZoomLevel + ".shp";
}
else
{
output = TodayDirectory + System.IO.Path.GetFileNameWithoutExtension(fileName) + "AreaAdditivePlus" + Presenter.AreaThreshold + ".shp";
}
IRI.Ket.ShapefileFormat.Writer.ShpWriter.Write(output, result, true);
}
public static IShapeCollection SimplifyByArea(IShapeCollection shapes, int zoomLevel)
{
var unitDistance = WebMercatorUtility.CalculateGroundResolution(zoomLevel, 35);
var unitArea = unitDistance * unitDistance;
return(SimplifyByArea(shapes, unitArea));
}