public void VisitPixelWnd(int[] bandNos, int[] wndBandNos, int minWndSize, int maxWndSize, Func <int, int, T[], T[][], bool> isNeedIncWndSize, Action <int, int, T[], T[][]> extractAction)
{
if (extractAction == null || wndBandNos == null || wndBandNos.Length == 0)
{
return;
}
Rectangle rect = AOIHelper.ComputeAOIRect(_argProvider.AOI, new Size(_argProvider.DataProvider.Width, _argProvider.DataProvider.Height));
int[] aoi = _argProvider.AOI;
VisitPixelWnd(rect, aoi, bandNos, wndBandNos, minWndSize, maxWndSize, isNeedIncWndSize, extractAction);
}
public void VisitPixel(int[] bandNos, Action <int, T[]> extractAction)
{
if (extractAction == null)
{
return;
}
if (bandNos == null || bandNos.Length == 0)
{
bandNos = GetAllBandNo();
}
Rectangle rect = AOIHelper.ComputeAOIRect(_argProvider.AOI, new Size(_argProvider.DataProvider.Width, _argProvider.DataProvider.Height));
int[] aoi = _argProvider.AOI;
VisitPixel(rect, aoi, bandNos, extractAction);
}
private void StatAreaUseAOI(byte[] adminRaster, byte[] landuseRaster, IRasterDataProvider dataProvider, double[,] result, int[] aoi, Func <T, int, int> weight)
{
ArgumentProvider arg = new ArgumentProvider(dataProvider, null)
{
AOI = aoi
};
using (IRasterPixelsVisitor <T> v = new RasterPixelsVisitor <T>(arg))
{
Rectangle aoiRect = AOIHelper.ComputeAOIRect(aoi, new Size(dataProvider.Width, dataProvider.Height));
v.VisitPixel(aoiRect, aoi, new int[] { 1 },
(idx, bandValues) =>
{
result[adminRaster[idx], landuseRaster[idx]] += weight(bandValues[0], idx);
}
);
}
}
public int[] Filter(IRasterDataProvider dataProvider, int[] aoi, Action <string> contextMessage)
{
if (_filters == null || _filters.Count == 0)
{
return(null);
}
Size size = new Size(dataProvider.Width, dataProvider.Height);
Rectangle rect = AOIHelper.ComputeAOIRect(aoi, size);
int[] rolledAOI = aoi;
foreach (ICandidatePixelFilter filter in _filters)
{
if (filter != null && filter.IsEnabled && !filter.IsFiltered)
{
if (contextMessage != null)
{
contextMessage("正在执行\"" + (filter.Name ?? filter.ToString()) + "\"...");
}
rolledAOI = filter.Filter(dataProvider, rect, rolledAOI);
rect = AOIHelper.ComputeAOIRect(rolledAOI, size);
}
}
return(rolledAOI);
}