/// <summary>
/// Zooms the map to fit a bounding box
/// </summary>
/// <remarks>
/// NOTE: If the aspect ratio of the box and the aspect ratio of the mapsize
/// isn't the same, the resulting map-envelope will be adjusted so that it contains
/// the bounding box, thus making the resulting envelope larger!
/// </remarks>
/// <param name="bbox"></param>
public void ZoomToBox(SharpMap.Geometries.BoundingBox bbox)
{
if (bbox != null)
{
this._Zoom = bbox.Width; //Set the private center value so we only fire one MapOnViewChange event
if (this.Envelope.Height < bbox.Height)
this._Zoom *= bbox.Height / this.Envelope.Height;
this.Center = bbox.GetCentroid();
}
}
public SharpMap.Data.FeatureDataSet SelectElements(SharpMap.Geometries.BoundingBox bbox, string layername)
{
if (!_MapLoaded)
return null;
SharpMap.Data.FeatureDataSet fds = new SharpMap.Data.FeatureDataSet();
SharpMap.Layers.VectorLayer l = (SharpMap.Layers.VectorLayer)Layers_[layername];
l.DataSource.Open();
if (layername == "Frentes")
{
(l.DataSource as SharpMap.Data.Providers.MemoryDataProvider<IntelliTrack.Data.FrenteDataPoint>).ExecuteIntersectionQuery2(bbox.GetCentroid(), fds);
}
else
{
l.DataSource.ExecuteIntersectionQuery(bbox, fds);
}
l.DataSource.Close();
return fds;
}