public SharpMap.Data.FeatureDataRow FindGeoNearPoint(SharpMap.Geometries.Point pos, double amountGrow, ref double DistanceToSelected)
{
SharpMap.Geometries.BoundingBox bbox = pos.GetBoundingBox().Grow(amountGrow);
SharpMap.Data.FeatureDataSet ds = new SharpMap.Data.FeatureDataSet();
DataSource.ExecuteIntersectionQuery(bbox, ds);
System.Data.DataTable tbl = ds.Tables[0] as SharpMap.Data.FeatureDataTable;
GisSharpBlog.NetTopologySuite.IO.WKTReader reader = new GisSharpBlog.NetTopologySuite.IO.WKTReader();
GeoAPI.Geometries.IGeometry point = reader.Read(pos.ToString());
if (tbl.Rows.Count == 0)
return null;
double distance = point.Distance(reader.Read((tbl.Rows[0] as SharpMap.Data.FeatureDataRow).Geometry.ToString()));
SharpMap.Data.FeatureDataRow selectedFeature = tbl.Rows[0] as SharpMap.Data.FeatureDataRow;
if (tbl.Rows.Count > 1)
for (int i = 1; i < tbl.Rows.Count; i++)
{
GeoAPI.Geometries.IGeometry line = reader.Read((tbl.Rows[i] as SharpMap.Data.FeatureDataRow).Geometry.ToString());
if (point.Distance(line) < distance)
{
distance = point.Distance(line);
selectedFeature = tbl.Rows[i] as SharpMap.Data.FeatureDataRow;
}
}
DistanceToSelected = distance;
return selectedFeature;
}
void mapBox1_GeometryDefined(SharpMap.Geometries.Geometry geometry)
{
MessageBox.Show("Geometry defined!\r\n"+geometry.ToString());
geoProvider.Geometries.Add(geometry);
this.mapBox1.ActiveTool = SharpMap.Forms.MapBox.Tools.Pan;
this.mapBox1.Refresh();
}