////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 21JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* draw a region.
* @param mapPen pen for the border of the region.
* @param mapBrush brush to fill the region.
* @param region the polygon object.
*/
private void DrawRegion(MapPen mapPen, MapBrush mapBrush, GeoPolygon region)
{
Pen pen = new Pen(new Color(mapPen.Color,false), mapPen.Width);
TextureBrush brush = GetImagePatternBrush(mapBrush);
ArrayList clippedPts = _sutherlandHodgman.ClipRegion(region.GetPoints());
GeoPoint[] screenPts = FromLatLngToMapPixel(clippedPts);
if (screenPts.Length > 2)
{
{
int[] xpoints = new int[screenPts.Length];
int[] ypoints = new int[screenPts.Length];
for (int i = 0; i < screenPts.Length; i++)
{
xpoints[i] = (int)screenPts[i].X;
ypoints[i] = (int)screenPts[i].Y;
}
Polygon polygon = new Polygon
{
Xpoints = xpoints,
Ypoints = ypoints,
NumOfNpoints = xpoints.Length
};
if (mapBrush.Pattern == 2)
{
SharedGraphics2D.SetPenAndBrush(pen, brush);
SharedGraphics2D.DrawPolygon(null, polygon);
SharedGraphics2D.FillPolygon(null, polygon);
}
else
{
SharedGraphics2D.SetDefaultPen(pen);
SharedGraphics2D.DrawPolygon(null, polygon);
}
}
}
}
public PolygonPathIterator(Polygon pg, AffineTransform at)
{
poly = pg;
transform = at;
if (pg.NumOfNpoints == 0)
{
// Prevent a spurious SEG_CLOSE segment
index = 1;
}
}