async public Task <IRasterLayer> NextRasterLayer()
{
if (_cursor == null || _layer == null)
{
return(null);
}
try
{
while (true)
{
IFeature feature = await _cursor.NextFeature();
if (feature == null)
{
return(null);
}
IRasterLayer rLayer = null;
double cell = Math.Max((double)feature["CELLX"], (double)feature["CELLY"]);
int levels = Convert.ToInt32(feature["LEVELS"]);
if ((bool)feature["MANAGED"] && _layer._imageSpaceType == SQLiteFDBImageCatalogClass.ImageSpaceType.FileSystem)
{
//gView.DataSources.Raster.File.PyramidFileClass rasterClass = new gView.DataSources.Raster.File.PyramidFileClass(_layer._dataset, _layer._imageSpace + @"/" + (string)feature["MANAGED_FILE"], feature.Shape as IPolygon);
//if (rasterClass.isValid)
//{
// rLayer = LayerFactory.Create(rasterClass) as IRasterLayer;
// if (rLayer != null)
// {
// rLayer.InterpolationMethod = _layer.InterpolationMethod;
// if (rasterClass.SpatialReference == null) rasterClass.SpatialReference = _layer._sRef;
// }
//}
}
else if (!(bool)feature["MANAGED"])
{
if (feature["RF_PROVIDER"] == null || feature["RF_PROVIDER"] == DBNull.Value)
{
gView.DataSources.Raster.File.RasterFileDataset rDataset = new gView.DataSources.Raster.File.RasterFileDataset();
rLayer = rDataset.AddRasterFile((string)feature["PATH"], feature.Shape as IPolygon);
}
else
{
IRasterFileDataset rDataset = _layer._compMan.CreateInstance(new Guid(feature["RF_PROVIDER"].ToString())) as IRasterFileDataset;
if (rDataset == null)
{
continue;
}
rLayer = rDataset.AddRasterFile((string)feature["PATH"], feature.Shape as IPolygon);
}
if (rLayer != null && rLayer.RasterClass != null)
{
rLayer.InterpolationMethod = _layer.InterpolationMethod;
if (rLayer.RasterClass.SpatialReference == null)
{
rLayer.RasterClass.SpatialReference = _layer._sRef;
}
}
}
if (rLayer != null)
{
if (rLayer.Class is IGridClass)
{
IGridClass gridClass = (IGridClass)rLayer.Class;
gridClass.ColorClasses = _layer.ColorClasses;
gridClass.UseHillShade = _layer.UseHillShade;
gridClass.HillShadeVector = _layer.HillShadeVector;
gridClass.UseIgnoreDataValue = _layer.UseIgnoreDataValue;
gridClass.IgnoreDataValue = _layer.IgnoreDataValue;
gridClass.RenderRawGridValues = _layer.RenderRawGridValues;
}
return(rLayer);
}
}
}
catch
{
}
return(null);
}
async public Task <IRasterLayer> NextRasterLayer()
{
if (_cursor == null || _layer == null)
{
return(null);
}
try
{
while (true)
{
IFeature feature = await _cursor.NextFeature();
if (feature == null)
{
return(null);
}
IRasterLayer rLayer = null;
double cell = Math.Max((double)feature["CELLX"], (double)feature["CELLY"]);
int levels = (int)feature["LEVELS"], level = 0;
if ((bool)feature["MANAGED"] && _layer._imageSpaceType == SqlFDBImageCatalogClass.ImageSpaceType.Database)
{
for (int l = 0; l < levels; l++)
{
if (cell * Math.Pow(2, l) < _pix)
{
level = l + 1;
}
else
{
break;
}
}
if (level == 0 && levels > 0)
{
level = 1;
}
DataTable tab = await _layer._fdb.Select("ID,SHAPE", _layer._dsname + "_IMAGE_DATA", "IMAGE_ID=" + feature.OID + " AND LEV=" + level);
if (tab == null)
{
continue;
}
foreach (DataRow row in tab.Rows)
{
byte[] obj = (byte[])row["SHAPE"];
BinaryReader r = new BinaryReader(new MemoryStream());
r.BaseStream.Write((byte[])obj, 0, ((byte[])obj).Length);
r.BaseStream.Position = 0;
Polygon polygon = new Polygon();
polygon.Deserialize(r, new GeometryDef(geometryType.Polygon, null, true));
r.Close();
if (gView.Framework.SpatialAlgorithms.Algorithm.IntersectBox(polygon, _dispEnvelope))
{
SqlFDBImageDatasetImageClass rClass = new SqlFDBImageDatasetImageClass(_layer._fdb, _layer._dsname, (int)row["ID"], polygon);
rLayer = new RasterLayer(rClass);
rLayer.InterpolationMethod = _layer.InterpolationMethod;
if (rClass.SpatialReference == null)
{
rClass.SpatialReference = _layer._sRef;
}
}
}
}
else if (!(bool)feature["MANAGED"])
{
if (feature["RF_PROVIDER"] == null || feature["RF_PROVIDER"] == DBNull.Value)
{
gView.DataSources.Raster.File.RasterFileDataset rDataset = new gView.DataSources.Raster.File.RasterFileDataset();
rLayer = rDataset.AddRasterFile((string)feature["PATH"], feature.Shape as IPolygon);
}
else
{
IRasterFileDataset rDataset = _layer._compMan.CreateInstance(new Guid(feature["RF_PROVIDER"].ToString())) as IRasterFileDataset;
if (rDataset == null)
{
continue;
}
rLayer = rDataset.AddRasterFile((string)feature["PATH"], feature.Shape as IPolygon);
}
if (rLayer != null && rLayer.RasterClass != null)
{
rLayer.InterpolationMethod = _layer.InterpolationMethod;
if (rLayer.RasterClass.SpatialReference == null)
{
rLayer.RasterClass.SpatialReference = _layer._sRef;
}
}
}
if (rLayer != null)
{
if (rLayer.Class is IGridClass)
{
IGridClass gridClass = (IGridClass)rLayer.Class;
gridClass.ColorClasses = _layer.ColorClasses;
gridClass.UseHillShade = _layer.UseHillShade;
gridClass.HillShadeVector = _layer.HillShadeVector;
gridClass.UseIgnoreDataValue = _layer.UseIgnoreDataValue;
gridClass.IgnoreDataValue = _layer.IgnoreDataValue;
gridClass.RenderRawGridValues = _layer.RenderRawGridValues;
}
return(rLayer);
}
}
}
catch
{
}
return(null);
}
async public Task <IRasterLayer> NextRasterLayer()
{
if (_cursor == null || _layer == null)
{
return(null);
}
try
{
while (true)
{
IFeature feature = await _cursor.NextFeature();
if (feature == null)
{
return(null);
}
IRasterLayer rLayer = null;
double cell = Math.Max((double)feature["CELLX"], (double)feature["CELLY"]);
int levels = (int)feature["LEVELS"];
if (!(bool)feature["MANAGED"])
{
if (feature["RF_PROVIDER"] == null || feature["RF_PROVIDER"] == DBNull.Value)
{
gView.DataSources.Raster.File.RasterFileDataset rDataset = new gView.DataSources.Raster.File.RasterFileDataset();
rLayer = rDataset.AddRasterFile((string)feature["PATH"], feature.Shape as IPolygon);
}
else
{
IRasterFileDataset rDataset = _layer._compMan.CreateInstance(new Guid(feature["RF_PROVIDER"].ToString())) as IRasterFileDataset;
if (rDataset == null)
{
continue;
}
rLayer = rDataset.AddRasterFile((string)feature["PATH"], feature.Shape as IPolygon);
}
if (rLayer != null && rLayer.RasterClass != null)
{
rLayer.InterpolationMethod = _layer.InterpolationMethod;
if (rLayer.RasterClass.SpatialReference == null)
{
rLayer.RasterClass.SpatialReference = _layer._sRef;
}
}
}
if (rLayer != null)
{
if (rLayer.Class is IGridClass)
{
IGridClass gridClass = (IGridClass)rLayer.Class;
gridClass.ColorClasses = _layer.ColorClasses;
gridClass.UseHillShade = _layer.UseHillShade;
gridClass.HillShadeVector = _layer.HillShadeVector;
gridClass.UseIgnoreDataValue = _layer.UseIgnoreDataValue;
gridClass.IgnoreDataValue = _layer.IgnoreDataValue;
gridClass.RenderRawGridValues = _layer.RenderRawGridValues;
}
return(rLayer);
}
}
}
catch
{
}
return(null);
}
