public void InitLookupTable()
{
NewLookupTable();
_RowIndex.Clear();
if (Source is FeatureSet)
{
var dt = (Source as FeatureSet).DataTable;
for (int i = 0; i < dt.Rows.Count; i++)
{
string id = dt.Rows[i][FieldName].ToString();
var dr = LookupTable.NewRow();
dr[_ID_COL_NAME] = id;
foreach (var ap in ArealProperties)
{
dr[ap.AliasName] = ap.DefaultValue.ToString();
}
_RowIndex.Add(id, i);
LookupTable.Rows.Add(dr);
}
}
else
{
bool outov = false;
var uval = RasterEx.GetUniqueValues(Source as IRaster, 100, out outov);
var uid = from uu in uval select uu.ToString();
for (int i = 0; i < uval.Count; i++)
{
var dr = LookupTable.NewRow();
var id = uval.ElementAt(i).ToString();
dr[_ID_COL_NAME] = id;
foreach (var ap in ArealProperties)
{
dr[ap.AliasName] = ap.DefaultValue.ToString();
}
_RowIndex.Add(id, i);
LookupTable.Rows.Add(dr);
}
}
}
private DataTable Derieve(PackageCoverage coverage)
{
if (coverage is FeatureCoverage)
{
var lm = coverage as FeatureCoverage;
var dt = (lm.Source as FeatureSet).DataTable;
List <DataColumn> new_dcs = new List <DataColumn>();
foreach (var ap in lm.ArealProperties)
{
if (!dt.Columns.Contains(ap.PropertyName))
{
DataColumn dc = new DataColumn(ap.PropertyName, Type.GetType(ap.TypeName));
dt.Columns.Add(dc);
dc.DefaultValue = ap.DefaultValue;
new_dcs.Add(dc);
}
}
if (!dt.Columns.Contains("ID"))
{
DataColumn dc = new DataColumn("ID", Type.GetType("System.Int32"));
dt.Columns.Add(dc);
for (int i = 0; i < dt.Rows.Count; i++)
{
dt.Rows[i]["ID"] = i + 1;
}
}
if (new_dcs.Count > 0)
{
foreach (DataRow dr in dt.Rows)
{
foreach (var dc in new_dcs)
{
dr[dc.ColumnName] = dc.DefaultValue;
}
}
}
//lm.Source.Save();
return(dt);
}
else
{
bool outov = false;
var raster = coverage as RasterCoverage;
bool require_newfile = true;
DataTable dt = null;
if (File.Exists(raster.FullLookupTableFileName))
{
LookupTable <double> mt = new LookupTable <double>();
mt.FromTextFile(raster.FullLookupTableFileName);
dt = mt.ToDataTable();
require_newfile = false;
foreach (var ap in raster.ArealProperties)
{
var buf = mt.ColNames.Where(p => p == ap.PropertyName);
if (buf.Count() == 0)
{
require_newfile = true;
break;
}
}
if (!require_newfile)
{
//raster.Converter = mt;
}
}
if (require_newfile)
{
var para_names = from pr in raster.ArealProperties select pr.PropertyName;
var uval = RasterEx.GetUniqueValues(raster.Source as IRaster, 100, out outov);
var uid = from uu in uval select uu.ToString();
var default_values = from pr in raster.ArealProperties select double.Parse(pr.DefaultValue.ToString());
var mapping = new LookupTable <double>(para_names.ToArray(), uid.ToArray(), default_values.ToArray());
mapping.Save(raster.FullLookupTableFileName);
dt = mapping.ToDataTable();
//raster.Converter = mapping;
}
return(dt);
}
}
