private void Import(String filename = null)
{
var rasterFile = filename;
if (rasterFile == null)
{
LandCoverTableViewModel.ImportStep = false;
var id = new LandCoverImportWindow {
Owner = Application.Current.MainWindow, DataContext = LandCoverTableViewModel
};
if (id.ShowDialog() != true)
{
return;
}
var dialog = new OpenFileDialog
{
Title = "Import Land Cover GeoTIFF",
DefaultExt = ".tif",
CheckFileExists = true
};
if (dialog.ShowDialog() != true)
{
return;
}
rasterFile = dialog.FileName;
}
if (String.IsNullOrWhiteSpace(rasterFile))
{
return;
}
var directory = Globals.Model.Assets.PathTo("BasinShapefile");
if (String.IsNullOrWhiteSpace(directory))
{
MessageBox.Show(
"The assessment needs to have a basin shapefile before the land cover can be computed.");
return;
}
var shapeFile = Directory.EnumerateFiles(directory, "*.shp").FirstOrDefault();
if (String.IsNullOrWhiteSpace(shapeFile))
{
MessageBox.Show("Basin shapefile in model seems to have an error.");
return;
}
GdalConfiguration.ConfigureOgr();
GdalConfiguration.ConfigureGdal();
var dataSource = Ogr.Open(shapeFile, 0);
var layer = dataSource.GetLayerByIndex(0);
var geometry = layer.GetNextFeature().GetGeometryRef();
var raster = Gdal.Open(rasterFile, Access.GA_ReadOnly);
var progress = new ProgressDialog
{
Label = $"Processing Land Cover:\n{raster.GeoTiffDescription()}",
Owner = Application.Current.MainWindow,
IsCancellable = true,
IsIndeterminate = false
};
Dictionary <byte, int> result = null;
progress.Execute((ct, p) => GdalRasterUtils.ReadRasterRows(raster, geometry, out result, ct, p));
var message = new TextWindow
{
Owner = Application.Current.MainWindow,
Text = "Histogram of extracted data:\n" + GdalRasterUtils.DumpResult(result) +
"\n\n--- Raster File Details ---\n" + GdalRasterUtils.DumpDatasetInfo(raster)
};
message.ShowDialog();
LandCoverIndicator.Notes = message.Text;
var coverage = LandCoverIndicator.Coverage.Clone();
foreach (var item in coverage)
{
item.Area = 0.0;
if (item.Mapping == null)
{
continue;
}
foreach (var map in item.Mapping)
{
if (result.ContainsKey(map))
{
item.Area += result[map];
}
}
}
var total = coverage.Sum(x => x.Area);
for (var i = 0; i < coverage.Count; i++)
{
LandCoverIndicator.Coverage[i].Area = 100.0 * coverage[i].Area / total;
}
}
private void Import(String filename = null)
{
var rasterFile = filename;
if (rasterFile == null)
{
LandCoverTableViewModel.BufferDistance = BankModificationIndicator.BufferDistance;
LandCoverTableViewModel.ImportStep = false;
var id = new LandCoverImportWindow {
Owner = Application.Current.MainWindow, DataContext = LandCoverTableViewModel
};
if (id.ShowDialog() != true)
{
return;
}
BankModificationIndicator.BufferDistance = LandCoverTableViewModel.BufferDistance;
var dialog = new OpenFileDialog
{
Title = "Import Land Cover GeoTIFF",
DefaultExt = ".tif",
CheckFileExists = true
};
if (dialog.ShowDialog() != true)
{
return;
}
rasterFile = dialog.FileName;
}
if (String.IsNullOrWhiteSpace(rasterFile))
{
return;
}
GdalConfiguration.ConfigureOgr();
GdalConfiguration.ConfigureGdal();
var ci = Model.EcosystemVitality.FetchIndicator <ConnectivityIndicator>();
if (!(ci?.Reaches?.Count > 0))
{
MessageBox.Show(
"You must have reaches for the Connectivity Indicator imported in order to process the channel modification.");
return;
}
var raster = Gdal.Open(rasterFile, Access.GA_ReadOnly);
var progress = new ProgressDialog
{
Label = $"Processing Channel Modification:\n{raster.GeoTiffDescription()}",
Owner = Application.Current.MainWindow,
IsCancellable = true,
IsIndeterminate = false
};
var result = new Dictionary <byte, int>();
progress.Execute((ct, p) =>
{
var ip = new Progress <int>();
var reachNumber = 0;
var sr = new SpatialReference(ArcGisUtils.WkidToWktxt(Model.Attributes.Wkid));
foreach (var reach in ci.Reaches)
{
var line = new Geometry(wkbGeometryType.wkbLineString);
line.AssignSpatialReference(sr);
foreach (var node in reach.Nodes)
{
line.AddPoint_2D(node.Location.Longitude, node.Location.Latitude);
}
// convert from the user specified buffer distance (in meters) to the projected buffer units. no idea how well this works in general.
var distance = sr.IsGeographic() == 1 ? BankModificationIndicator.BufferDistance / 110000 * Math.Abs(Math.Cos(sr.GetAngularUnits() * reach.Nodes[0].Location.Latitude)) : BankModificationIndicator.BufferDistance / sr.GetLinearUnits();
GdalRasterUtils.ReadRasterRows(raster, line.Buffer(distance, 5), out var tally, ct, ip);
foreach (var key in tally.Keys)
{
if (!result.ContainsKey(key))
{
result[key] = 0;
}
result[key] += tally[key];
}
p.Report((int)(100.0 * reachNumber++ / ci.Reaches.Count));
}
});
var message = new TextWindow
{
Owner = Application.Current.MainWindow,
Text = "Histogram of extracted data:\n" + GdalRasterUtils.DumpResult(result) +
"\n\n--- Raster File Details ---\n" + GdalRasterUtils.DumpDatasetInfo(raster)
};
message.ShowDialog();
BankModificationIndicator.Notes = message.Text;
var coverage = BankModificationIndicator.Coverage.Clone();
foreach (var item in coverage)
{
item.Area = 0.0;
if (item.Mapping == null)
{
continue;
}
foreach (var map in item.Mapping)
{
if (result.ContainsKey(map))
{
item.Area += result[map];
}
}
}
var total = coverage.Sum(x => x.Area);
for (var i = 0; i < coverage.Count; i++)
{
BankModificationIndicator.Coverage[i].Area = 100.0 * coverage[i].Area / total;
}
}
