private static Task <IList <Tree> > ExecuteFromRaw(DetectTreesCommand command, ILogger logger)
{
using var streamReader = FileFormatDetector.GetCloudStreamReader(command.Input);
if (streamReader == null)
{
logger.Fatal("Not supported data format.");
Environment.Exit(0);
}
var cloud = new Cloud(streamReader);
var terrain = new Terrain(cloud, command.Resolution);
foreach (var point in cloud)
{
point.Z -= terrain.GetHeight(point);
}
var slices = cloud
.Slice(command.SliceHeight.GetValueOrDefault(0.1))
.Where(slice => slice != null).OrderBy(slice => slice.Height)
.ToList();
var pointSetGroups = FilteringFlow.GetFilteredPointSetGroups(command.FiltersConfigurationFile, logger, slices);
var pointSetGroup = new PointSetGroup(pointSetGroups.SelectMany(p => p.PointSets).ToList());
var trees = Detect(pointSetGroup);
return(Task.FromResult(trees));
}
/// <summary>
/// </summary>
/// <param name="cloud"></param>
/// <param name="detectionParameters"></param>
/// <param name="mergingParameters"></param>
/// <returns></returns>
public IList <Tree> DetectPotentialTrees(Cloud cloud, DetectionParameters detectionParameters, MergingParameters mergingParameters)
{
var pointSets = DetectTrunkPointSets(cloud, detectionParameters).SelectMany(group => group.PointSets).ToList();
var pointSetGroup = new PointSetGroup(pointSets);
var potentialTrees = pointSetGroup.BuildTrees(mergingParameters);
return(FilterTrees(potentialTrees, detectionParameters.TreeFilters));
}
private static Task <IList <Tree> > ExecuteFromProcessed(DetectTreesCommand command, ILogger logger)
{
using var reader = new GpdReader(command.Input);
var cloud = reader.ReadPointSlices().SelectMany(slice => slice.PointSets).ToList();
var pointSetGroup = new PointSetGroup(cloud);
var trees = Detect(pointSetGroup);
return(Task.FromResult(trees));
}
private static IList <Tree> Detect(PointSetGroup pointSetGroup)
{
var mergingParameters = new MergingParameters
{
MinimumRegressionGroupingDistance = 0.09,
MaximumGroupingEmptyHeight = 20,
MinimumGroupingDistance = 0.35,
};
var treeFilters = new List <ITreeFilter>
{
new TreeHeightFilter
{
MinimalTreeHeight = 4
}
};
var potentialTrees = pointSetGroup.BuildTrees(mergingParameters);
return(FilterTrees(potentialTrees, treeFilters));
}
