public override bool CanExport(Data.DataMatrix matrix, String datasetName)
{
foreach (Pair <string, string> p in _recognizedColumns)
{
if (matrix.ContainsColumn(p.First) && matrix.ContainsColumn(p.Second))
{
return(true);
}
}
return(false);
}
public override void ExportImpl(System.Windows.Window parentWindow, Data.DataMatrix matrix, string datasetName, object options)
{
var opt = options as KMLExporterOptions;
if (opt != null)
{
var filename = opt.Filename;
ProgressStart("Exporting points to '" + filename + "'");
int latIndex = -1;
int lonIndex = -1;
foreach (Pair <string, string> p in _recognizedColumns)
{
if (matrix.ContainsColumn(p.First) && matrix.ContainsColumn(p.Second))
{
latIndex = matrix.IndexOf(p.First);
lonIndex = matrix.IndexOf(p.Second);
}
}
if (latIndex < 0 || lonIndex < 0)
{
ErrorMessage.Show("Failed to located Latitude and/or Longitude columns in data set!");
return;
}
int nameIndex = matrix.IndexOf(opt.LabelColumn);
int rowCount = 0;
using (var writer = new StreamWriter(filename)) {
writer.WriteLine("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
writer.WriteLine("<kml xmlns=\"http://www.opengis.net/kml/2.2\">");
writer.WriteLine("<Document>");
foreach (MatrixRow row in matrix.Rows)
{
var lat = row[latIndex];
var lon = row[lonIndex];
if (lat != null && lon != null)
{
writer.WriteLine("<Placemark>");
string name = "" + rowCount;
if (nameIndex >= 0)
{
var nameObj = row[nameIndex];
if (nameObj != null)
{
name = row[nameIndex].ToString();
}
else
{
name = "";
}
}
if (!string.IsNullOrEmpty(name))
{
writer.WriteLine(string.Format("<name>{0}</name>", name));
}
writer.WriteLine(string.Format("<description>{0}</description>", BuildDescription(row)));
writer.WriteLine(string.Format("<Point><coordinates>{0},{1}</coordinates></Point>", lon, lat));
writer.WriteLine("</Placemark>");
}
if (++rowCount % 1000 == 0)
{
double percent = ((double)rowCount / (double)matrix.Rows.Count) * 100;
this.ProgressMessage("Exporting points to '" + filename + "'", percent);
}
}
writer.WriteLine("</Document>");
writer.WriteLine("</kml>");
}
ProgressEnd(string.Format("{0} rows exported.", rowCount));
}
}