/// <summary>
/// Method called to initialize the rendering process
/// </summary>
/// <param name="graphics">The graphics object to render upon</param>
/// <param name="map">The map</param>
protected virtual void OnRender(Graphics graphics, MapViewport map)
{
// Get query envelope
var envelope = ToSource(map.Envelope);
lock (_dataSource)
{
var wasOpen = _dataSource.IsOpen;
if (!_dataSource.IsOpen)
{
_dataSource.Open();
}
_geometries = DataSource.GetGeometriesInView(envelope);
if (logger.IsDebugEnabled)
{
logger.DebugFormat("Layer {0}, NumGeometries {1}", LayerName, _geometries.Count);
}
if (!wasOpen)
{
_dataSource.Close();
}
}
//Setting up the Symbolizer
Symbolizer.Begin(graphics, map, 0);
}
/// <summary>
/// Method called to initialize the rendering process
/// </summary>
/// <param name="graphics">The graphics object to render upon</param>
/// <param name="map">The map</param>
protected virtual void OnRender(Graphics graphics, Map map)
{
// Get query envelope
var envelope = map.Envelope;
// Convert bounding box to datasource's coordinate system
if (CoordinateTransformation != null)
{
#if !DotSpatialProjections
if (ReverseCoordinateTransformation != null)
{
envelope = GeometryTransform.TransformBox(envelope, ReverseCoordinateTransformation.MathTransform);
}
else
{
CoordinateTransformation.MathTransform.Invert();
envelope = GeometryTransform.TransformBox(envelope, CoordinateTransformation.MathTransform);
CoordinateTransformation.MathTransform.Invert();
}
#else
envelope = GeometryTransform.TransformBox(envelope, CoordinateTransformation.Target, CoordinateTransformation.Source);
#endif
}
lock (_dataSource)
{
var wasOpen = _dataSource.IsOpen;
if (!_dataSource.IsOpen)
{
_dataSource.Open();
}
_geometries = DataSource.GetGeometriesInView(envelope);
if (logger.IsDebugEnabled)
{
logger.DebugFormat("Layer {0}, NumGeometries {1}", LayerName, _geometries.Count);
}
if (!wasOpen)
{
_dataSource.Close();
}
}
//Setting up the Symbolizer
Symbolizer.Begin(graphics, map, 0);
}
/// <summary>
/// Method called to initialize the rendering process
/// </summary>
/// <param name="graphics"></param>
/// <param name="map"></param>
protected virtual void OnRender(Graphics graphics, Map map)
{
// Get query envelope
BoundingBox envelope = map.Envelope;
// Convert bounding box to datasource's coordinate system
if (CoordinateTransformation != null)
{
#if !DotSpatialProjections
if (ReverseCoordinateTransformation != null)
{
envelope = GeometryTransform.TransformBox(envelope, ReverseCoordinateTransformation.MathTransform);
}
else
{
CoordinateTransformation.MathTransform.Invert();
envelope = GeometryTransform.TransformBox(envelope, CoordinateTransformation.MathTransform);
CoordinateTransformation.MathTransform.Invert();
}
#else
envelope = GeometryTransform.TransformBox(envelope, CoordinateTransformation.Target, CoordinateTransformation.Source);
#endif
}
lock (_dataSource)
{
bool wasOpen = _dataSource.IsOpen;
if (!_dataSource.IsOpen)
{
_dataSource.Open();
}
_geometries = DataSource.GetGeometriesInView(envelope);
Console.Out.WriteLine(string.Format("Layer {0}, NumGeometries {1}", LayerName, _geometries.Count));
if (!wasOpen)
{
_dataSource.Close();
}
}
_oldSmoothingMode = graphics.SmoothingMode;
graphics.SmoothingMode = SmoothingMode;
//Setting up the Symbolizer
Symbolizer.Begin(graphics, map, 0);
}