/// <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 RectangleD( RectangleD rect )
{
_UL = rect.UL;
_LR = rect.LR;
}
/// <summary>
/// Determines if the GIS.RectangleD object intersects this rectangle
/// </summary>
/// @param rect the rectangle to test
/// @returns true if any part of the rectangles intersect
public bool Intersects( RectangleD rect )
{
// It's not pretty, but it works.
// Is there a mathematician in the house?
if ( Contains( rect.UL ) )
{
return true;
}
if ( Contains( rect.LR ) )
{
return true;
}
if ( rect.Xmin <= this.Xmax &&
rect.Xmax >= this.Xmax )
{
if ( this.Ymax >= rect.Ymax &&
this.Ymin <= rect.Ymax )
{
return true;
}
if ( this.Ymax >= rect.Ymin &&
this.Ymin <= rect.Ymin )
{
return true;
}
}
if ( rect.Xmin <= this.Xmin &&
rect.Xmax >= this.Xmin )
{
if ( this.Ymax >= rect.Ymax &&
this.Ymin <= rect.Ymax )
{
return true;
}
if ( this.Ymax >= rect.Ymin &&
this.Ymin <= rect.Ymin )
{
return true;
}
}
if ( rect.Ymin <= this.Ymax &&
rect.Ymax >= this.Ymax )
{
if ( this.Xmax >= rect.Xmax &&
this.Xmin <= rect.Xmax )
{
return true;
}
if ( this.Xmax >= rect.Xmin &&
this.Xmin <= rect.Xmin )
{
return true;
}
}
if ( rect.Ymin <= this.Ymin &&
rect.Ymax >= this.Ymin )
{
if ( this.Xmax >= rect.Xmax &&
this.Xmin <= rect.Xmax )
{
return true;
}
if ( this.Xmax >= rect.Xmin &&
this.Xmin <= rect.Xmin )
{
return true;
}
}
if ( rect.UL < this.UL &&
rect.LR > this.LR )
{
return true;
}
return false;
}
public MapMetrics()
{
_viewport = new RectangleD();
_extents = new RectangleD();
}
/// <summary>
/// Set the viewport to the specified coordinates.
/// </summary>
/// @param rect Geographic rectangle for the viewport.
public void ZoomArea( RectangleD rect )
{
_mapMetrics.Viewport = rect;
}