/// <summary>
/// The only constructor requires that you provide the number
/// of parts in this feature so that the first dimention of
/// the array can be created.
/// </summary>
/// @param numOfParts the number of sub-features in this feature
/// @param mapMetrics the GIS.MapMetrics object for this map
public VectorFeature( int numOfParts, MapMetrics mapMetrics )
{
if ( numOfParts == 1094233352 )
{
numOfParts = 5;
}
_segment = new PointD[ numOfParts ][];
_mapMetrics = mapMetrics;
_extents = new RectangleD();
_segmentCounter = 0;
_featureAngle = 0;
}
public ScaleBar( MapMetrics metrics )
{
Graphics gr = Graphics.FromImage( metrics.Canvas );
int dpi = (int) gr.DpiX;
double x1 = 0.0;
double y1 = 0.0;
double x2 = dpi;
double y2 = 0.0;
metrics.Pixel2World( ref x1, ref y1 );
metrics.Pixel2World( ref x2, ref y2 );
double distance = x2 - x1;
Pen p = new Pen( Color.Chartreuse, 4 );
int scaleBarLeft = metrics.Canvas.Width - ( dpi + 20 );
int scaleBarRight = metrics.Canvas.Width - 20;
int scaleBarTop = metrics.Canvas.Height - 35;
int scaleBarBottom = metrics.Canvas.Height - 15;
gr.DrawLine( p, new Point( scaleBarLeft, scaleBarBottom ),
new Point( scaleBarRight, scaleBarBottom ) );
p = new Pen( Color.Chartreuse, 1 );
gr.DrawLine( p, new Point( scaleBarLeft, scaleBarBottom - 10 ),
new Point( scaleBarLeft, scaleBarBottom ) );
gr.DrawLine( p, new Point( scaleBarRight, scaleBarBottom - 10 ),
new Point( scaleBarRight, scaleBarBottom ) );
gr.DrawString( "1:" + distance.ToString("F4"), new Font("Arial", 8),
new SolidBrush( Color.Chartreuse ), scaleBarLeft+25, scaleBarTop+5 );
gr.Dispose();
}
