private void Calculate()
{
var map = _context.Map;
var table = Model.Table;
const string msg = "Updating measurements";
GlobalListeners.ReportProgress(string.Empty, 0, msg);
int featureCount = Model.Features.Count;
foreach (var ft in Model.Features)
{
GlobalListeners.ReportProgress(string.Empty, Convert.ToInt32((ft.Index + 1) * 100.0 / featureCount), msg);
var g = ft.Geometry;
if (_lengthInfo.Active)
{
double length = map.GeodesicLength(g);
length = UnitConversionHelper.Convert(LengthUnits.Meters, View.LengthUnits, length);
table.EditCellValue(_lengthInfo.FieldIndex, ft.Index, length);
}
if (_areaInfo.Active)
{
double area = map.GeodesicArea(g);
area = UnitConversionHelper.Convert(AreaUnits.SquareMeters, View.AreaUnits, area);
table.EditCellValue(_areaInfo.FieldIndex, ft.Index, area);
}
}
GlobalListeners.ClearProgress();
}
